Home » Public Forums » GMCnet » [GMCnet] Anyone install the Mercedes Benz electrically controlled fan clutch on a 403 yet?
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| Re: [GMCnet] Anyone install the Mercedes Benz electrically controlled fan clutch on a 403 yet? [message #329472 is a reply to message #329471] |
Sat, 24 February 2018 19:59   |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Go to Heating cooling section.
On Sat, Feb 24, 2018 at 5:57 PM, Jim Kanomata wrote:
> You need an adapter,bracket and a cotrol box.
> We have all that in our kit.
> www.appliedgmc.com
> I am running it in my 78 Kingsly.
>
> On Sat, Feb 24, 2018 at 2:27 PM, Bob Dunahugh
> wrote:
>
>> I know Matt Collie has. And he has this answer. The Benz unit locates
>> the back of it's fan at the front of were the stock fan is located. It's
>> looking to me that this puts the Benz fan well into the stock fan shroud's
>> cone area. Thus I'm thinking that I don't have to cut my now two piece
>> plastic fan shroud. The Benz fan has about a 1" larger dia. Bob Dunahugh
>> 78 Royale
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
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>
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Anyone install the Mercedes Benz electrically controlled fan clutch on a 403 yet? [message #329473 is a reply to message #329472] |
Sun, 25 February 2018 00:42 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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I watch all of these things and options for the radiator fans.
The question is why?
The cooling system should cool the engine on it's own most of the time and only require additional boosting, meaning more air flow, is rare conditions. If you can not keep the engine at normal operating temperature then fix your cooling system problem. Do not try to cover it up with more fan forced air cooling.
I realize that there are a few circumstances where additional fan forced air is necessary, like extensive slow speeds like idling, or stop and go driving, or towing in a large load up hill in warm/ hot weather. In those occasional circumstances the stock fan and clutch has worked for many, many years on thousands on maybe millions of vehicles.
Fix the cooling system before monkeying around with a fan or clutch.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Anyone install the Mercedes Benz electrically controlled fan clutch on a 403 yet? [message #329474 is a reply to message #329473] |
Sun, 25 February 2018 03:13 |
johnd01
Messages: 354
Registered: July 2017
Location: Sacrameot
Karma: -1
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Senior Member |
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Are you going to this fan because the stock clutch fails?
On Sat, Feb 24, 2018 at 10:42 PM, Ken Burton wrote:
> I watch all of these things and options for the radiator fans.
>
> The question is why?
>
> The cooling system should cool the engine on it's own most of the time and
> only require additional boosting, meaning more air flow, is rare
> conditions. If you can not keep the engine at normal operating
> temperature then fix your cooling system problem. Do not try to cover it
> up with more
> fan forced air cooling.
>
> I realize that there are a few circumstances where additional fan forced
> air is necessary, like extensive slow speeds like idling, or stop and go
> driving, or towing in a large load up hill in warm/ hot weather. In those
> occasional circumstances the stock fan and clutch has worked for many, many
> years on thousands on maybe millions of vehicles.
>
> Fix the cooling system before monkeying around with a fan or clutch.
>
>
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
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--
*John Phillips*
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John Phillips
Avion A2600 TZE064V101164
Rancho Cordova, CA (Sacramento)
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| Re: [GMCnet] Anyone install the Mercedes Benz electrically controlled fan clutch on a 403 yet? [message #329478 is a reply to message #329466] |
Sun, 25 February 2018 08:01 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Ken, there's a few reasons.
Working fan clutches are harder and harder to find.
Each has two seals using 40 y/o technology, double the leak potential.
The activating mechanism on the OEM is hung out in the weather to collect whatever hits it.
The OEM fan is heavy and not as efficient as the new one.
There is no provision to turn the OEM on in anticipation - a hill or traffic f'rinstance
Your ears and the temp gauge are the only way to tell if the OEM is engaged or not.
Will a properly operating OEM system cool the coach? Yup. After a couple of clutches, a new core, and a good set of belts my 23' had no cooling problems over Culowee Mountain, or out of Mississippi to home in August.
My 26' runs cool. but hills warm it up more than I'd like. So, it will get the new setup which I can force on ahead of time, and which has a light to tell me it's engaged.
For the dedicated gadget buff, there is provision in the fan to provide RPM. You could run a separate tach for fan speed. If I can find a two needle electronic tach I'm minded to replace the one in my Mac dash with engine and fan rpm. Purely as a point of interest.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Anyone install the Mercedes Benz electrically controlled fan clutch on a 403 yet? [message #329479 is a reply to message #329473] |
Sun, 25 February 2018 08:09 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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Ken Burton wrote on Sun, 25 February 2018 01:42I watch all of these things and options for the radiator fans.
The question is why?
The cooling system should cool the engine on it's own most of the time and only require additional boosting, meaning more air flow, is rare conditions. If you can not keep the engine at normal operating temperature then fix your cooling system problem. Do not try to cover it up with more fan forced air cooling.
I realize that there are a few circumstances where additional fan forced air is necessary, like extensive slow speeds like idling, or stop and go driving, or towing in a large load up hill in warm/ hot weather. In those occasional circumstances the stock fan and clutch has worked for many, many years on thousands on maybe millions of vehicles.
Fix the cooling system before monkeying around with a fan or clutch.
Ken,
The answer to your question is simple....
I am on the third fan clutch.
One got so loose I was worried that it might actually let go of the blade.
The replacement locked up on the way to the Western States Rally. When I say locked up, if the belts didn't slip, I could have turn the engine over compression. I bought what I could find and replaced it in a parking lot at Amana.
That one came on too soon and stayed on so long that the thermostat never opened. That put the fuel rate down to 8.6 and it was loud all the time.
With some help, I got all the parts together and put in the electrically controlled fan.
This one comes on at 210°F and goes off at 195°F. I can never be sure if it is running when Mary is driving.
It was a real good mod for me.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Anyone install the Mercedes Benz electrically controlled fan clutch on a 403 yet? [message #329484 is a reply to message #329479] |
Sun, 25 February 2018 09:10 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Ken, I can only think of one GOOD and PRACTICAL reason to change to the
Mercedes fan. The stock clutch fan "ain't what she used to be". I have
replaced 4 of them on my coach, and too many to remember on customer
coaches. If you have a good one, hang on to it for dear life. What is out
there in the parts stream is a long, far, cry from what was originally
fitted to our coaches. Since Delphi filed for bankruptcy back before Olds,
and Pontiac, and Saturn went belly up, the aftermarket parts stream is
F.U.B.A.R. Water pumps, fuel pumps, fan clutches, alternators, starters,
etc. are crapola. If you have local rebuilders for that stuff, support
them. They are a dying breed. I would suggest taking a hard look at the
Mercedes fan drive at someone else's expense. If it proves reliable and
trouble free after 30 to 50 thousand miles of GMC coach use, it might be
worth going to it.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Feb 25, 2018 6:10 AM, "Matt Colie" wrote:
> Ken Burton wrote on Sun, 25 February 2018 01:42
>> I watch all of these things and options for the radiator fans.
>>
>> The question is why?
>>
>> The cooling system should cool the engine on it's own most of the time
> and only require additional boosting, meaning more air flow, is rare
>> conditions. If you can not keep the engine at normal operating
> temperature then fix your cooling system problem. Do not try to cover it
> up with
>> more fan forced air cooling.
>>
>> I realize that there are a few circumstances where additional fan forced
> air is necessary, like extensive slow speeds like idling, or stop and go
>> driving, or towing in a large load up hill in warm/ hot weather. In
> those occasional circumstances the stock fan and clutch has worked for many,
>> many years on thousands on maybe millions of vehicles.
>>
>> Fix the cooling system before monkeying around with a fan or clutch.
>
>
> Ken,
>
> The answer to your question is simple....
>
> I am on the third fan clutch.
> One got so loose I was worried that it might actually let go of the blade.
> The replacement locked up on the way to the Western States Rally. When I
> say locked up, if the belts didn't slip, I could have turn the engine over
> compression. I bought what I could find and replaced it in a parking lot
> at Amana.
> That one came on too soon and stayed on so long that the thermostat never
> opened. That put the fuel rate down to 8.6 and it was loud all the time.
> With some help, I got all the parts together and put in the electrically
> controlled fan.
> This one comes on at 210°F and goes off at 195°F. I can never be sure if
> it is running when Mary is driving.
>
> It was a real good mod for me.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: [GMCnet] The reality of cooling timing in keeping your engine cooled better under heavier load condisions. [message #329490 is a reply to message #329488] |
Sun, 25 February 2018 12:31 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Bob, the advantages you speak about are very specific and real life. I ONLY
question the reliability of the Benz setup. Unproven by time is my major
concern. I have had enough of the Hayden fan clutches fail on the road, to
be more than a little bit interested in an alternative to them. But, I have
been snakebit by alternative fan systems as well. One involved changing the
water pump, fan clutch, thermostat and fan by the side of the road on a
customer's coach. Draining hot anti freeze, wrestling wet slippery radiator
hoses, scraping gaskets, etc is not my idea of a fun time, all on my
nickel, although this particular customer compensated me for time and
travel. Please keep us posted on the Benz system, it sounds like it might
be some of the solution for the Hayden failures.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Feb 25, 2018 9:40 AM, "Bob Dunahugh" wrote:
> One big advantage. Is that these Benz units are PROACTIVE as far as when
> to engage. As they react to your engine block temps as the water comes
> out of the cylinder heads. And is heading TO the radiator. With the
> REACTIVE OEM unit. (1) First you have to get the engine block hotter then
> normal. (2) Then this hotter then normal water needs to get the radiator.
> (3) Next this hotter then normal water needs to heat up our very large
> radiator. (4) Then the hotter then normal radiator needs to heat up all
> the air going true it to hotter then normal temps. (5) Next all this
> hotter then normal air needs to heat up the fan clutch. So that the fan
> clutch finally finds out that there's an over heating problem that started
> sometime ago. That's how our antiquated OEM fan clutch works. So is the
> Benz unit a good idea. And not just another gig it? YOU BET. Then on top
> of that. You can turn it on as YOU want. Then there's a light to tell you
> when it's on. I love my 403. And want to keep it as healthy as possible.
> Thus helping to keep us from ending up at the side of the road. Bob
> Dunahugh 78 Royale
>
>
> ________________________________
> From: Bob Dunahugh
> Sent: Saturday, February 24, 2018 4:27 PM
> To: gmclist@list.gmcnet.org
> Subject: Anyone install the Mercedes Benz electrically controlled fan
> clutch on a 403 yet?
>
>
> I know Matt Collie has. And he has this answer. The Benz unit locates
> the back of it's fan at the front of were the stock fan is located. It's
> looking to me that this puts the Benz fan well into the stock fan shroud's
> cone area. Thus I'm thinking that I don't have to cut my now two piece
> plastic fan shroud. The Benz fan has about a 1" larger dia. Bob Dunahugh
> 78 Royale
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: [GMCnet] The reality of cooling timing in keeping your engine cooled better under heavier load condisions. [message #329491 is a reply to message #329490] |
Sun, 25 February 2018 12:58 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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This unit is used by most trucks ad the reliabiliy is mainly on the engine
coolent temp.
I have couple people that are Electrial Engineers and also a very seasoned
electrical technician working to even improve the overall reliability and
performance.
The fan is mounted on the water pump shaft, about 1 1/2 " ahead of the
original as an adapter need to be used to work with this advanced fan
design that pulles in more air than stock and quiter.
Tom Pryor has been working on this for coupler years and finally have
released the package to us to market.
Only modification needed is at the fan shroud as the adapter mount and the
adapters and electrical cotrol ad temp sensor are all part of the kit.
One must see the new fan design to appreciate its pulling capacity and the
sound control.
On Sun, Feb 25, 2018 at 10:31 AM, James Hupy wrote:
> Bob, the advantages you speak about are very specific and real life. I ONLY
> question the reliability of the Benz setup. Unproven by time is my major
> concern. I have had enough of the Hayden fan clutches fail on the road, to
> be more than a little bit interested in an alternative to them. But, I have
> been snakebit by alternative fan systems as well. One involved changing the
> water pump, fan clutch, thermostat and fan by the side of the road on a
> customer's coach. Draining hot anti freeze, wrestling wet slippery radiator
> hoses, scraping gaskets, etc is not my idea of a fun time, all on my
> nickel, although this particular customer compensated me for time and
> travel. Please keep us posted on the Benz system, it sounds like it might
> be some of the solution for the Hayden failures.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>
> On Feb 25, 2018 9:40 AM, "Bob Dunahugh" wrote:
>
>> One big advantage. Is that these Benz units are PROACTIVE as far as when
>> to engage. As they react to your engine block temps as the water comes
>> out of the cylinder heads. And is heading TO the radiator. With the
>> REACTIVE OEM unit. (1) First you have to get the engine block hotter
> then
>> normal. (2) Then this hotter then normal water needs to get the radiator.
>> (3) Next this hotter then normal water needs to heat up our very large
>> radiator. (4) Then the hotter then normal radiator needs to heat up all
>> the air going true it to hotter then normal temps. (5) Next all this
>> hotter then normal air needs to heat up the fan clutch. So that the fan
>> clutch finally finds out that there's an over heating problem that
> started
>> sometime ago. That's how our antiquated OEM fan clutch works. So is
> the
>> Benz unit a good idea. And not just another gig it? YOU BET. Then on top
>> of that. You can turn it on as YOU want. Then there's a light to tell you
>> when it's on. I love my 403. And want to keep it as healthy as possible.
>> Thus helping to keep us from ending up at the side of the road. Bob
>> Dunahugh 78 Royale
>>
>>
>> ________________________________
>> From: Bob Dunahugh
>> Sent: Saturday, February 24, 2018 4:27 PM
>> To: gmclist@list.gmcnet.org
>> Subject: Anyone install the Mercedes Benz electrically controlled fan
>> clutch on a 403 yet?
>>
>>
>> I know Matt Collie has. And he has this answer. The Benz unit locates
>> the back of it's fan at the front of were the stock fan is located. It's
>> looking to me that this puts the Benz fan well into the stock fan
> shroud's
>> cone area. Thus I'm thinking that I don't have to cut my now two piece
>> plastic fan shroud. The Benz fan has about a 1" larger dia. Bob
> Dunahugh
>> 78 Royale
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
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Unsubscribe or Change List Options:
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] The reality of cooling timing in keeping your engine cooled better under heavier load condisions. [message #329492 is a reply to message #329491] |
Sun, 25 February 2018 13:10 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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This Electric fan clutch is what the newer vans and trucks are employing,
so you might say were updating the old technology as the Old fan clutches
are not very reliable.
John Bush our Electrical Engineer working on improving the unit has
researched this unit to where we know Borg Warner did it initially.
On Sun, Feb 25, 2018 at 10:58 AM, Jim Kanomata
wrote:
> This unit is used by most trucks ad the reliabiliy is mainly on the engine
> coolent temp.
> I have couple people that are Electrial Engineers and also a very seasoned
> electrical technician working to even improve the overall reliability and
> performance.
> The fan is mounted on the water pump shaft, about 1 1/2 " ahead of the
> original as an adapter need to be used to work with this advanced fan
> design that pulles in more air than stock and quiter.
> Tom Pryor has been working on this for coupler years and finally have
> released the package to us to market.
> Only modification needed is at the fan shroud as the adapter mount and the
> adapters and electrical cotrol ad temp sensor are all part of the kit.
> One must see the new fan design to appreciate its pulling capacity and the
> sound control.
>
> On Sun, Feb 25, 2018 at 10:31 AM, James Hupy wrote:
>
>> Bob, the advantages you speak about are very specific and real life. I
>> ONLY
>> question the reliability of the Benz setup. Unproven by time is my major
>> concern. I have had enough of the Hayden fan clutches fail on the road, to
>> be more than a little bit interested in an alternative to them. But, I
>> have
>> been snakebit by alternative fan systems as well. One involved changing
>> the
>> water pump, fan clutch, thermostat and fan by the side of the road on a
>> customer's coach. Draining hot anti freeze, wrestling wet slippery
>> radiator
>> hoses, scraping gaskets, etc is not my idea of a fun time, all on my
>> nickel, although this particular customer compensated me for time and
>> travel. Please keep us posted on the Benz system, it sounds like it might
>> be some of the solution for the Hayden failures.
>> Jim Hupy
>> Salem, Or
>> 78 GMC ROYALE 403
>>
>> On Feb 25, 2018 9:40 AM, "Bob Dunahugh" wrote:
>>
>>> One big advantage. Is that these Benz units are PROACTIVE as far as when
>>> to engage. As they react to your engine block temps as the water comes
>>> out of the cylinder heads. And is heading TO the radiator. With the
>>> REACTIVE OEM unit. (1) First you have to get the engine block hotter
>> then
>>> normal. (2) Then this hotter then normal water needs to get the
>> radiator.
>>> (3) Next this hotter then normal water needs to heat up our very large
>>> radiator. (4) Then the hotter then normal radiator needs to heat up all
>>> the air going true it to hotter then normal temps. (5) Next all this
>>> hotter then normal air needs to heat up the fan clutch. So that the fan
>>> clutch finally finds out that there's an over heating problem that
>> started
>>> sometime ago. That's how our antiquated OEM fan clutch works. So is
>> the
>>> Benz unit a good idea. And not just another gig it? YOU BET. Then on
>> top
>>> of that. You can turn it on as YOU want. Then there's a light to tell
>> you
>>> when it's on. I love my 403. And want to keep it as healthy as possible.
>>> Thus helping to keep us from ending up at the side of the road. Bob
>>> Dunahugh 78 Royale
>>>
>>>
>>> ________________________________
>>> From: Bob Dunahugh
>>> Sent: Saturday, February 24, 2018 4:27 PM
>>> To: gmclist@list.gmcnet.org
>>> Subject: Anyone install the Mercedes Benz electrically controlled fan
>>> clutch on a 403 yet?
>>>
>>>
>>> I know Matt Collie has. And he has this answer. The Benz unit locates
>>> the back of it's fan at the front of were the stock fan is located. It's
>>> looking to me that this puts the Benz fan well into the stock fan
>> shroud's
>>> cone area. Thus I'm thinking that I don't have to cut my now two piece
>>> plastic fan shroud. The Benz fan has about a 1" larger dia. Bob
>> Dunahugh
>>> 78 Royale
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] The reality of cooling timing in keeping your engine cooled better under heavier load condisions. [message #329501 is a reply to message #329500] |
Sun, 25 February 2018 22:11 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
|
Senior Member |
|
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Billy,
The belts will not be effected as we do not tenickly touch the pully.
On Sun, Feb 25, 2018 at 7:50 PM, Billy Massey wrote:
> What about fan belt installation? Does the fan have to come off to replace
> a belt?
>
> bdub
>
>
> -----Original Message-----
> From: Gmclist On Behalf Of Bob Dunahugh
> Sent: Sunday, February 25, 2018 9:12 PM
> Subject: Re: [GMCnet] The reality of cooling timing in keeping your engine
> cooled better under heavier load condisions.
>
> James. Reliability will not be an issue with these fan clutches. This
> technology maybe new in our GMC world. But GM has had a fan clutch similar
> to these for about the last 15 years on their trucks. And I think Benz has
> been doing it for about the same length of time. I'm not totally sure on
> the
> Benz time. The point here is that it's a well proven system. I can't think
> of a down side. Bolts to our stock water pump. Then connect some wires.
> Looks like I don't even have to modify my fan shroud. Tom Pryor did a great
> job. And my thanks to Tom.
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] The reality of cooling timing in keeping your engine cooled better under heavier load condisions. [message #329505 is a reply to message #329503] |
Mon, 26 February 2018 04:37 |
GMC.LES
Messages: 505
Registered: April 2014
Karma: -2
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Senior Member |
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I have no experience with the specific fan clutch being used, but I do know that the Ford powerstroke diesels came with a similar fan clutch, and they are known to fail, but not with excessive regularity. IMO the upgrade is still leaps ahead of the old fan clutch technology. I’ll be doing this upgrade at some point in the future.
Les Burt
Montreal
'75 Eleganza 26'
> On Feb 25, 2018, at 11:30 PM, Billy Massey wrote:
>
> So if I break a belt, I can install a new one just as easily as before?
>
> bdub
>
>> On Sun, Feb 25, 2018 at 10:11 PM, Jim Kanomata wrote:
>>
>> Billy,
>> The belts will not be effected as we do not tenickly touch the pully.
>>
>>> On Sun, Feb 25, 2018 at 7:50 PM, Billy Massey wrote:
>>>
>>> What about fan belt installation? Does the fan have to come off to
>> replace
>>> a belt?
>>
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| Re: [GMCnet] Anyone install the Mercedes Benz electrically controlled fan clutch on a 403 yet? [message #329511 is a reply to message #329466] |
Mon, 26 February 2018 08:19 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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As to reliability, this clutch has been on Sprinters for about ten years now, and it takes a hell of a beating in delivery service. I've not heard of excessive failures, if someone knows somebody at FedEx we could find out - they're a big user of Sprinters for in town delivery.
As to belts, if the belt will pass over the outer fan ring they are replaceable with the fan installed. A/C and alternator belts should. I've not tried the P/S belt (the smallest one). If it won't pass the outer ring of the fan, you'll have to lift the fan off to change the belt.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Anyone install the Mercedes Benz electrically controlled fan clutch on a 403 yet? [message #329513 is a reply to message #329511] |
Mon, 26 February 2018 08:42 |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
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Senior Member |
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I think Billy is concerned about the wiring harness obstructing the belt on installation/removal. Even if there is fan shroud clearance, the wiring will have to be disconnected to get the belt on or off the pulleys. The belt will be looped around the wiring unless it is disconnected. All that is required to circumvent this easily is just a plug/socket connector to allow the belt through. I believe the factory units have a disconnect right at the actuator, but the newer vehicles would be using a serpentine belt which may not loop over the wiring. I haven't had to do the belt(s) on a Sprinter yet, so I may be wrong on that point, and I'm sure someone on here will have the correct knowledge.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
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