Home » Public Forums » GMCnet » Do I need a new radiator ???
 Do I need a new radiator ??? [message #183872] |
Mon, 10 September 2012 16:06  |
 |
Scooby Doo
Messages: 92
Registered: May 2012
Location: Miami, Florida
Karma: 4
|
Member |
|
|
GMC.netters,
I am starting to feel a little guilty.
I sure am using you guys a little too much lately.
Hopefully, I will get everything in tip top shape by the end of the year and go back to just lurking.
Then maybe one day, I might be qualified to help someone else out.
Thank you for being there for me.
Last week someone posted that his water temp was running too low.(lucky guy)
Got me nervous that mine is running on the high side.
On the last few road trips I have noticed that the water temp seemed a little on the high side to me. (Especially after I put in new gauges & have real numbers to go by).
Now here are some facts.
When I purchased the coach, I installed a new (high volume) water pump, A 10Lb. radiator cap, & a 180 degree high volume thermostat, spring in lower radiator hose, 50/50 coolant.
Recently a new mechanical Stewart Warner water temp gauge(very accurate), and a IR handheld thermometer for a back up.
When I had the water neck off I was impressed of how clean & NON corroded the engine water jacket area looked.
On the open road in Florida, I am running around 200 degrees to 210 degrees and when in city traffic around 220 degrees.
I was concerned that my thermostat could be defective so I removed it today to put that out of the equation.
(Results are roughly the same with it in or out).
I did not have the time to take it for a drive today, so I let it idle up to around 180 degrees and then brought the engine to 2000 rpm to get some water & air circulation. My temp just kept rising slowly to 223 degrees(the whole process was about 25 minutes)
And finally my clutch fan kicked in (@ 223d.)
I am thinking that I have looked at, and changed everything except the radiator.
Before I go out and make that huge $ purchase I was wondering if I should do anything else I may have not thought about to try and confirm it is the radiator. It seems as though putting a new radiator in will be a BIG job. (But, I am up to it)
I will be calling Jeff at Alex Sirums tomorrow to see if he has a radiator in stock, and also if I have any choices.
I noticed other posts about people using aluminum radiators as if everyone is using the same brand/style radiator?
So far I have been working on the GMC almost as much as driving it.
But, that's OK, we love our "Scooby Doo"
As always, any advise will be greatly appreciated.
G2... 
Glenn & Elaine Gardner...
Miami, Florida...
1976 Royale (transmode)
TZE366V100733
|
|
|
|
| Re: [GMCnet] Do I need a new radiator ??? [message #183877 is a reply to message #183872] |
Mon, 10 September 2012 16:25  |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
|
Senior Member |
|
|
Glen,
You can have your present unit recored which is what many do.
See here:
http://gmcmotorhomeinfo.com/radiator.html
or you can purchase a new aluminum radiator which Jeff Sirum can
probably provide
or
http://www.bdub.net/Motorhome_Enhancements/index.html
Scroll down to alum radiator.
JR Wright
78 Buskirk Stretch
Michigan
On Sep 10, 2012, at 5:06 PM, Glenn Gardner wrote:
>
>
> GMC.netters,
>
> I am starting to feel a little guilty.
> I sure am using you guys a little too much lately.
> Hopefully, I will get everything in tip top shape by the end of the
> year and go back to just lurking.
> Then maybe one day, I might be qualified to help someone else out.
> Thank you for being there for me.
>
> Last week someone posted that his water temp was running too low.
> (lucky guy)
> Got me nervous that mine is running on the high side.
>
> On the last few road trips I have noticed that the water temp seemed
> a little on the high side to me. (Especially after I put in new
> gauges & have real numbers to go by).
> Now here are some facts.
> When I purchased the coach, I installed a new (high volume) water
> pump, A 10Lb. radiator cap, & a 180 degree high volume thermostat,
> spring in lower radiator hose, 50/50 coolant.
> Recently a new mechanical Stewart Warner water temp gauge(very
> accurate), and a IR handheld thermometer for a back up.
> When I had the water neck off I was impressed of how clean & NON
> corroded the engine water jacket area looked.
>
> On the open road in Florida, I am running around 200 degrees to 210
> degrees and when in city traffic around 220 degrees.
> I was concerned that my thermostat could be defective so I removed
> it today to put that out of the equation.
> (Results are roughly the same with it in or out).
> I did not have the time to take it for a drive today, so I let it
> idle up to around 180 degrees and then brought the engine to 2000
> rpm to get some water & air circulation. My temp just kept rising
> slowly to 223 degrees(the whole process was about 25 minutes)
> And finally my clutch fan kicked in (@ 223d.)
>
> I am thinking that I have looked at, and changed everything except
> the radiator.
> Before I go out and make that huge $ purchase I was wondering if I
> should do anything else I may have not thought about to try and
> confirm it is the radiator. It seems as though putting a new
> radiator in will be a BIG job. (But, I am up to it)
>
> I will be calling Jeff at Alex Sirums tomorrow to see if he has a
> radiator in stock, and also if I have any choices.
> I noticed other posts about people using aluminum radiators as if
> everyone is using the same brand/style radiator?
>
> So far I have been working on the GMC almost as much as driving it.
> But, that's OK, we love our "http://www.g2photosmx.com/Events/GMC-Scobby-Doo-Mobile/22716313_dSwJ7C
> "
>
> As always, any advise will be greatly appreciated.
>
> G2... :)
>
> --
> Glenn & Elaine Gardner...
> Miami, Florida...
> 1976 Royale (transmode)
> TZE366V100733
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
|
|
|
|
| Re: Do I need a new radiator ??? [message #183879 is a reply to message #183872] |
Mon, 10 September 2012 16:36 |
GeorgeRud
Messages: 1380
Registered: February 2007
Location: Chicago, IL
Karma: 0
|
Senior Member |
|
|
I think that JimK is also carrying a copper radiator at his Applied GM site. Don't know if it's all new or a recore, so options are out there. There seem to be two schools of thought whether the new aluminum or recored original radiator is the best way to go.
George Rudawsky
Chicago, IL
75 Palm Beach
|
|
|
|
| Re: Do I need a new radiator ??? [message #183880 is a reply to message #183872] |
Mon, 10 September 2012 16:37 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
|
Senior Member |
|
|
Sir: Is your clutch fan coming on? If you cannot hear it for about a minute when you first start it up cold chances are it is not working.
| Scooby Doo wrote on Mon, 10 September 2012 17:06 |
GMC.netters,
I am starting to feel a little guilty.
I sure am using you guys a little too much lately.
Hopefully, I will get everything in tip top shape by the end of the year and go back to just lurking.
Then maybe one day, I might be qualified to help someone else out.
Thank you for being there for me.
Last week someone posted that his water temp was running too low.(lucky guy)
Got me nervous that mine is running on the high side.
On the last few road trips I have noticed that the water temp seemed a little on the high side to me. (Especially after I put in new gauges & have real numbers to go by).
Now here are some facts.
When I purchased the coach, I installed a new (high volume) water pump, A 10Lb. radiator cap, & a 180 degree high volume thermostat, spring in lower radiator hose, 50/50 coolant.
Recently a new mechanical Stewart Warner water temp gauge(very accurate), and a IR handheld thermometer for a back up.
When I had the water neck off I was impressed of how clean & NON corroded the engine water jacket area looked.
On the open road in Florida, I am running around 200 degrees to 210 degrees and when in city traffic around 220 degrees.
I was concerned that my thermostat could be defective so I removed it today to put that out of the equation.
(Results are roughly the same with it in or out).
I did not have the time to take it for a drive today, so I let it idle up to around 180 degrees and then brought the engine to 2000 rpm to get some water & air circulation. My temp just kept rising slowly to 223 degrees(the whole process was about 25 minutes)
And finally my clutch fan kicked in (@ 223d.)
I am thinking that I have looked at, and changed everything except the radiator.
Before I go out and make that huge $ purchase I was wondering if I should do anything else I may have not thought about to try and confirm it is the radiator. It seems as though putting a new radiator in will be a BIG job. (But, I am up to it)
I will be calling Jeff at Alex Sirums tomorrow to see if he has a radiator in stock, and also if I have any choices.
I noticed other posts about people using aluminum radiators as if everyone is using the same brand/style radiator?
So far I have been working on the GMC almost as much as driving it.
But, that's OK, we love our "Scooby Doo"
As always, any advise will be greatly appreciated.
G2...
|
C. Boyd
76 Crestmont
East Tennessee
|
|
|
|
| Re: Do I need a new radiator ??? [message #183891 is a reply to message #183880] |
Mon, 10 September 2012 17:35 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
|
Senior Member |
|
|
Check price of a recore of your old radiator. You may find the Aluminum radiator is not very much more money. With a 35% increase in cooling capability, it is. The way to go. This is my opinion, your mileage may vary.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
|
|
|
|
| Re: [GMCnet] Do I need a new radiator ??? [message #183893 is a reply to message #183880] |
Mon, 10 September 2012 17:40 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
|
Senior Member |
|
|
Jim has an all Brass unit:
http://www.appliedgmc.com/prod.itml/icOid/1304
As Charles has written, If you have not heard you fan clutch engage
then I would start there first.
Would suggest a Autozone part#922747 This is a good all purpose unit
that in not as noisey as the 922797 unit.
JR Wright
78 Buskirk Stretch
Michigan
On Sep 10, 2012, at 5:37 PM, Charles Boyd wrote:
>
>
> Sir: Is your clutch fan coming on? If you cannot hear it for about
> a minute when you first start it up cold chances are it is not
> working.
>
>
>
>
> Scooby Doo wrote on Mon, 10 September 2012 17:06
>> GMC.netters,
>>
>> I am starting to feel a little guilty.
>> I sure am using you guys a little too much lately.
>> Hopefully, I will get everything in tip top shape by the end of the
>> year and go back to just lurking.
>> Then maybe one day, I might be qualified to help someone else out.
>> Thank you for being there for me.
>>
>> Last week someone posted that his water temp was running too low.
>> (lucky guy)
>> Got me nervous that mine is running on the high side.
>>
>> On the last few road trips I have noticed that the water temp
>> seemed a little on the high side to me. (Especially after I put in
>> new gauges & have real numbers to go by).
>> Now here are some facts.
>> When I purchased the coach, I installed a new (high volume) water
>> pump, A 10Lb. radiator cap, & a 180 degree high volume thermostat,
>> spring in lower radiator hose, 50/50 coolant.
>> Recently a new mechanical Stewart Warner water temp gauge(very
>> accurate), and a IR handheld thermometer for a back up.
>> When I had the water neck off I was impressed of how clean & NON
>> corroded the engine water jacket area looked.
>>
>> On the open road in Florida, I am running around 200 degrees to 210
>> degrees and when in city traffic around 220 degrees.
>> I was concerned that my thermostat could be defective so I removed
>> it today to put that out of the equation.
>> (Results are roughly the same with it in or out).
>> I did not have the time to take it for a drive today, so I let it
>> idle up to around 180 degrees and then brought the engine to 2000
>> rpm to get some water & air circulation. My temp just kept rising
>> slowly to 223 degrees(the whole process was about 25 minutes)
>> And finally my clutch fan kicked in (@ 223d.)
>>
>> I am thinking that I have looked at, and changed everything except
>> the radiator.
>> Before I go out and make that huge $ purchase I was wondering if I
>> should do anything else I may have not thought about to try and
>> confirm it is the radiator. It seems as though putting a new
>> radiator in will be a BIG job. (But, I am up to it)
>>
>> I will be calling Jeff at Alex Sirums tomorrow to see if he has a
>> radiator in stock, and also if I have any choices.
>> I noticed other posts about people using aluminum radiators as if
>> everyone is using the same brand/style radiator?
>>
>> So far I have been working on the GMC almost as much as driving it.
>> But, that's OK, we love our "Scooby Doo"
>>
>> As always, any advise will be greatly appreciated.
>>
>> G2... :)
>
>
> --
> C. Boyd
> 76 Crestmont
> East Tennessee
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
|
|
|
|
|
|
|
|
| Re: [GMCnet] Do I need a new radiator ??? [message #183910 is a reply to message #183872] |
Mon, 10 September 2012 19:42 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Glenn,
Lucky guy here!
The first thing I would do is drive your GMC to a radiator shop and let them clean the radiator in situ.
Part of that procedure should be a back flush. They flow cleaning solution and water through it in the opposite direction form
normal flow.
It shouldn't cost very much to have this done.
Regards,
Rob M.
-----Original Message-----
From: Glenn Gardner
GMC.netters,
I am starting to feel a little guilty.
I sure am using you guys a little too much lately.
Hopefully, I will get everything in tip top shape by the end of the year and go back to just lurking.
Then maybe one day, I might be qualified to help someone else out.
Thank you for being there for me.
Last week someone posted that his water temp was running too low.(lucky guy)
Got me nervous that mine is running on the high side.
On the last few road trips I have noticed that the water temp seemed a little on the high side to me. (Especially after I put in new
gauges & have real numbers to go by).
Now here are some facts.
When I purchased the coach, I installed a new (high volume) water pump, A 10Lb. radiator cap, & a 180 degree high volume thermostat,
spring in lower radiator hose, 50/50 coolant.
Recently a new mechanical Stewart Warner water temp gauge(very accurate), and a IR handheld thermometer for a back up.
When I had the water neck off I was impressed of how clean & NON corroded the engine water jacket area looked.
On the open road in Florida, I am running around 200 degrees to 210 degrees and when in city traffic around 220 degrees.
I was concerned that my thermostat could be defective so I removed it today to put that out of the equation.
(Results are roughly the same with it in or out).
I did not have the time to take it for a drive today, so I let it idle up to around 180 degrees and then brought the engine to 2000
rpm to get some water & air circulation. My temp just kept rising slowly to 223 degrees(the whole process was about 25 minutes)
And finally my clutch fan kicked in (@ 223d.)
I am thinking that I have looked at, and changed everything except the radiator.
Before I go out and make that huge $ purchase I was wondering if I should do anything else I may have not thought about to try and
confirm it is the radiator. It seems as though putting a new radiator in will be a BIG job. (But, I am up to it)
I will be calling Jeff at Alex Sirums tomorrow to see if he has a radiator in stock, and also if I have any choices.
I noticed other posts about people using aluminum radiators as if everyone is using the same brand/style radiator?
So far I have been working on the GMC almost as much as driving it.
But, that's OK, we love our "http://www.g2photosmx.com/Events/GMC-Scobby-Doo-Mobile/22716313_dSwJ7C"
As always, any advise will be greatly appreciated.
G2... :)
--
Glenn
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
| Re: Do I need a new radiator ??? [message #183913 is a reply to message #183872] |
Mon, 10 September 2012 20:08 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
|
Senior Member |
|
|
I would think the radiator shop could shoot the back side of the radiator with an infrared thermometer and tell if you have blockages.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
|
|
|
|
|
|
| Re: [GMCnet] Do I need a new radiator ??? [message #183920 is a reply to message #183918] |
Mon, 10 September 2012 20:38 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
|
Senior Member |
|
|
| Robert Mueller wrote on Mon, 10 September 2012 20:26 |
Kerry,
The backside of a GMC radiator is surrounded by a shroud in which the fan spins so it might be a bit problematic to "shoot the
backside."
Regards,
Rob M....
|
Yes but you're going to have to pull the shroud to get the radiator out anyway and before I dropped the big bucks for a new radiator, I'd pull the shroud and let them shoot it.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
|
|
|
|
| Re: Do I need a new radiator ??? [message #183923 is a reply to message #183872] |
Mon, 10 September 2012 20:50 |
shawnee
Messages: 422
Registered: February 2004
Location: NC
Karma: 0
|
Senior Member |
|
|
| Scooby Doo wrote on Mon, 10 September 2012 17:06 |
GMC.netters,
I am starting to feel a little guilty.
I sure am using you guys a little too much lately.
Hopefully, I will get everything in tip top shape by the end of the year and go back to just lurking.
Then maybe one day, I might be qualified to help someone else out.
Thank you for being there for me.
Last week someone posted that his water temp was running too low.(lucky guy)
Got me nervous that mine is running on the high side.
On the last few road trips I have noticed that the water temp seemed a little on the high side to me. (Especially after I put in new gauges & have real numbers to go by).
Now here are some facts.
When I purchased the coach, I installed a new (high volume) water pump, A 10Lb. radiator cap, & a 180 degree high volume thermostat, spring in lower radiator hose, 50/50 coolant.
Recently a new mechanical Stewart Warner water temp gauge(very accurate), and a IR handheld thermometer for a back up.
When I had the water neck off I was impressed of how clean & NON corroded the engine water jacket area looked.
On the open road in Florida, I am running around 200 degrees to 210 degrees and when in city traffic around 220 degrees.
I was concerned that my thermostat could be defective so I removed it today to put that out of the equation.
(Results are roughly the same with it in or out).
I did not have the time to take it for a drive today, so I let it idle up to around 180 degrees and then brought the engine to 2000 rpm to get some water & air circulation. My temp just kept rising slowly to 223 degrees(the whole process was about 25 minutes)
And finally my clutch fan kicked in (@ 223d.)
I am thinking that I have looked at, and changed everything except the radiator.
Before I go out and make that huge $ purchase I was wondering if I should do anything else I may have not thought about to try and confirm it is the radiator. It seems as though putting a new radiator in will be a BIG job. (But, I am up to it)
I will be calling Jeff at Alex Sirums tomorrow to see if he has a radiator in stock, and also if I have any choices.
I noticed other posts about people using aluminum radiators as if everyone is using the same brand/style radiator?
So far I have been working on the GMC almost as much as driving it.
But, that's OK, we love our "Scooby Doo"
As always, any advise will be greatly appreciated.
G2...
|
Glen
If you do need a new radiator we keep the Aluminum radiators in stock and for immediate shipping by Fed Ex. They are $795.00 and we have an installation kit with rubber and brass fittings that we sell for $20.00 at our cost. The radiator is over 35% more efficient than the original brass radiator and has real engine oil and transmission fluid coolers.
Gene Dotson
74 Canyonlands
www.bdub.net/Motorhome_Enhancements New Windows and Aluminum Radiators
|
|
|
|
|
|
| Re: [GMCnet] Do I need a new radiator ??? [message #183930 is a reply to message #183926] |
Mon, 10 September 2012 21:37 |
|
Scooby Doo
Messages: 92
Registered: May 2012
Location: Miami, Florida
Karma: 4
|
Member |
|
|
GMC.netters,
Thank you all so very much.
I got a couple private e-mails along with the public responses.
I would have to admit, I don't think I would have come up with the best solution on my own.
So, thank you for the input.
I intend to look around tomorrow for a local radiator shop, and ask a few questions about having it professionally cleaned.
Then if that does not work out, I will install a new aluminum one (The "MOTORHOME ENHANCEMENTS" model)
Thanks for the links and awesome tips on the radiator removal.
My first thoughts were, this is going to be tough to remove, but after reading how to do it, it may only take me a day to get things done.
I have received such sound advise once again, and I thank you all who have contributed to the solution of my problems.
Sincerely,
Glenn Gardner...Scooby Doo
Glenn & Elaine Gardner...
Miami, Florida...
1976 Royale (transmode)
TZE366V100733
|
|
|
|
| Re: Do I need a new radiator ??? [message #183944 is a reply to message #183923] |
Mon, 10 September 2012 22:21 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
|
Senior Member |
|
|
| shawnee wrote on Mon, 10 September 2012 20:50 |
Glen
If you do need a new radiator we keep the Aluminum radiators in stock and for immediate shipping by Fed Ex. They are $795.00 and we have an installation kit with rubber and brass fittings that we sell for $20.00 at our cost. The radiator is over 35% more efficient than the original brass radiator and has real engine oil and transmission fluid coolers.
|
What he didn't mention is if you pull in to a GMCMI rally with a big hole in your old radiator, he will have one there in stock for you and supervise your replacing it.
A few years back I did that and with the help of Emery, Colonel Ken, Rick Denny, and a lot of others (including one doggie), we got a new one from Gene and installed it in my coach in about 3 hours.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
|
|
|
|
|
|
|
|
| Re: [GMCnet] Do I need a new radiator ??? [message #183949 is a reply to message #183946] |
Mon, 10 September 2012 23:13 |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
|
Senior Member |
|
|
Great. I'll see you on Dothan, Alabama next spring!
Emery Stors
On Sep 10, 2012, at 9:53 PM, Glenn Gardner <G2photos@aol.com> wrote:
>
>
> Ken,
>
> You have no idea how much I want to attend a GMCMI rally.
> I want to meet so many of you that post online and have helped me and so many others.
> And to attend the seminars & workshops.
>
> I had no idea when we bought our GMC that there would be so many people that care so much to help one another.
> I see so much around me, & on the news, and find it easy to start losing faith in humanity.
> The GMC community is such a giving group of people. I sure would like to be a part of it.
>
> I have joined my local GMC club, Sunshine Statesmen and look forward to our first GMC rally here in Florida.
>
> I also hope to attend a GMCMI rally next year in Alabama? Which will be as close to me as can be.
> I live pretty far south.
>
> I look forward to meeting many of you in person.
>
> G2... :)
>
> --
> Glenn & Elaine Gardner...
> Miami, Florida...
> 1976 Royale (transmode)
> TZE366V100733
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: Do I need a new radiator ??? [message #183953 is a reply to message #183872] |
Tue, 11 September 2012 00:08 |
crash24
Messages: 79
Registered: February 2012
Location: Vancouver, B.C.
Karma: 0
|
Member |
|
|
Two of us installed identical CAT engines in boats. Mine ran @ 20 degrees hotter, so I was concerned. When we consulted CAT they got us worrying about all manner of problems. We puzzled over this problem most of the summer. I decided to change the temp sender. This lowered my temp @ 6* IIRC. I convinced my friend to install my old sender in his engine and his temp went up about the same. So we asked CAT shop guys, WTH? We finally found an old guy who said this was "normal." A 5% tolerance in the sender AND/OR THE GAUGE was not uncommon. This tolerance can add up. I use a candy thermometer now, that I have checked in boiling water, at sea level. This tells me if the gauge or sender is off.
While chasing this problem, we also found that Temperature Sensor Gun readings depend on the surface texture and color you point them at.
Someone a while back mentioned dirt accumulation on the fan clutch spring. This is often cause by the silicon fluid leaking out the front of the clutch combining with incoming crud. Cleaning a spring on a leaking clutch is not a long term solution. It will slowly quit working.
| Scooby Doo wrote on Mon, 10 September 2012 14:06 |
GMC.netters,
I am starting to feel a little guilty.
I sure am using you guys a little too much lately.
Hopefully, I will get everything in tip top shape by the end of the year and go back to just lurking.
Then maybe one day, I might be qualified to help someone else out.
Thank you for being there for me.
Last week someone posted that his water temp was running too low.(lucky guy)
Got me nervous that mine is running on the high side.
On the last few road trips I have noticed that the water temp seemed a little on the high side to me. (Especially after I put in new gauges & have real numbers to go by).
Now here are some facts.
When I purchased the coach, I installed a new (high volume) water pump, A 10Lb. radiator cap, & a 180 degree high volume thermostat, spring in lower radiator hose, 50/50 coolant.
Recently a new mechanical Stewart Warner water temp gauge(very accurate), and a IR handheld thermometer for a back up.
When I had the water neck off I was impressed of how clean & NON corroded the engine water jacket area looked.
On the open road in Florida, I am running around 200 degrees to 210 degrees and when in city traffic around 220 degrees.
I was concerned that my thermostat could be defective so I removed it today to put that out of the equation.
(Results are roughly the same with it in or out).
I did not have the time to take it for a drive today, so I let it idle up to around 180 degrees and then brought the engine to 2000 rpm to get some water & air circulation. My temp just kept rising slowly to 223 degrees(the whole process was about 25 minutes)
And finally my clutch fan kicked in (@ 223d.)
I am thinking that I have looked at, and changed everything except the radiator.
Before I go out and make that huge $ purchase I was wondering if I should do anything else I may have not thought about to try and confirm it is the radiator. It seems as though putting a new radiator in will be a BIG job. (But, I am up to it)
I will be calling Jeff at Alex Sirums tomorrow to see if he has a radiator in stock, and also if I have any choices.
I noticed other posts about people using aluminum radiators as if everyone is using the same brand/style radiator?
So far I have been working on the GMC almost as much as driving it.
But, that's OK, we love our "Scooby Doo"
As always, any advise will be greatly appreciated.
G2...
|
|
|
|
|
Goto Forum:
Current Time: Wed Oct 02 18:26:34 CDT 2024
Total time taken to generate the page: 0.08398 seconds
|
GMCforum
Search
Help
Register
Login
Home
