Home » Public Forums » GMCnet » [GMCnet] Larger Engine Oil Filter
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| Re: [GMCnet] Larger Engine Oil Filter [message #319089 is a reply to message #319073] |
Thu, 15 June 2017 21:12   |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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They show same flow rate, however more area in this case means lower pressure drop. More flow through it at same pressure.
There are lot of overdoses filters that have less than half media
Sent from my iPhone
> On Jun 15, 2017, at 2:33 PM, Emery Stora wrote:
>
> Size is the only difference. The 51049 holds about 1 quart. The 51258 is shorter.
>
> Neither has a by pass valve. Both have an anti-drain back valve.
> Both have a flow rate of 9-11 gpm.
> Both have a 21 micron filter.
> The 51049 would have more filter area.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
>> On Jun 15, 2017, at 3:18 PM, Larry wrote:
>>
>> USAussie wrote on Thu, 15 June 2017 09:43
>>> Bob,
>>>
>>> It's Wix 51049
>>>
>>> http://www.gmcmhphotos.com/photos/g6398-455-2f-403-engine-oil-flow-path.html
>>>
>>> Regards,
>>> Rob M.
>>
>> What is the difference between this one (WIX 51049) and the WIX 51258?
>> --
>> Larry
>> 78 Royale w/500 Caddy
>> Menomonie, WI.
>>
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Larger Engine Oil Filter [message #319110 is a reply to message #319047] |
Fri, 16 June 2017 10:18 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Be sure that doesn't stick it down too far in harms way for tire schrapnl and rocks etc. More is not always better. Had a friend where PO and put the upsized filter adaptor on his Turbo Regal. He was backing out his drive and left a huge oil stream. Very lucky place to happen and at idle. I couldn't imagine what happened unless a cooler line blew. Upom examination the oversized oil filer can had been rubbing on the intercooler bracket and cut a hole in the can. Pumped out 5 qts in seconds. Engine engine was ok as he shut down when he saw oil trail.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Larger Engine Oil Filter [message #319117 is a reply to message #319112] |
Fri, 16 June 2017 13:31 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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The filter fits fine, I have been running for years (16) without any problems.
JR Wright
GMC Great Laker MHC
GMC Eastern States Charter Member
GMCGL Tech Editor
GMCMI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
> On Jun 16, 2017, at 12:34 PM, Emery Stora wrote:
>
> There is plenty of room for the larger filter on the GMC motorhome. And it does not go down anywhere near the bottom of the engine. A rock would have to blow out the frame before it could hit the filter.
> I have been using it for years because I like the larger filter area it provides.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
>> On Jun 16, 2017, at 9:18 AM, John R. Lebetski wrote:
>>
>> Be sure that doesn't stick it down too far in harms way for tire shrapnel and rocks etc. More is not always better. Had a friend where PO and put the
>> Upsized filter adaptor on his Turbo Regal. He was backing out his drive and left a huge oil stream. Very lucky place to happen and at idle. I
>> couldn't imagine what happened unless a cooler line blew. Upon examination the oversized oil filer can had been rubbing on the intercooler bracket and
>> cut a hole in the can. Pumped out 5 qts in seconds. Engine engine was ok as he shut down when he saw oil trail.
>> --
>> John Lebetski
>> Woodstock, IL
>> 77 Eleganza II
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Larger Engine Oil Filter [message #319126 is a reply to message #319110] |
Fri, 16 June 2017 17:03 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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John,
I'm sorry this isn't a filter problem it's a mechanic problem, he installs
an oversize filter and doesn't check the clearances around it?
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of John R.
Lebetski
Sent: Saturday, June 17, 2017 1:19 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Larger Engine Oil Filter
Be sure that doesn't stick it down too far in harms way for tire schrapnl
and rocks etc. More is not always better. Had a friend where PO and put the
upsized filter adaptor on his Turbo Regal. He was backing out his drive and
left a huge oil stream. Very lucky place to happen and at idle. I
couldn't imagine what happened unless a cooler line blew. Upom examination
the oversized oil filer can had been rubbing on the intercooler bracket and
cut a hole in the can. Pumped out 5 qts in seconds. Engine engine was ok as
he shut down when he saw oil trail.
--
John Lebetski
Woodstock, IL
77 Eleganza II
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Larger Engine Oil Filter [message #319129 is a reply to message #319047] |
Fri, 16 June 2017 19:27 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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The PO installed it and the owner was not "mechanically inclined". I got called for an "over the phone troubleshoot" when it leaked. Yes always better to check than not when the engine saving device makes you buy a new engine. I can see the larger filter advantage on a long trip cycle before heading bank to home base for a drain and fill.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Larger Engine Oil Filter [message #319151 is a reply to message #319047] |
Sat, 17 June 2017 08:35 |
joewilly
Messages: 40
Registered: April 2016
Location: Victor,Ia
Karma: -1
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Member |
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I was just looking through the GMCMI parts interchange book and noticed that the oil filter for the 1978 403 is listed as Wix 51045, 77 403 and earlier 455 are 51049 , whats the difference between these 2 filters , are they interchangeable? I'm a newbie
thanks Joe
Joe Williams
1978 Royale rear twin
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| Re: [GMCnet] Larger Engine Oil Filter [message #319154 is a reply to message #319047] |
Sat, 17 June 2017 08:46 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Yes Rob "Declined". What is the status of the pedantic oil bypass pressure experiment? Might be interesting to A/B the 2 Wix numbers in the process and see how or if it changes anything. Cheers.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Larger Engine Oil Filter [message #319160 is a reply to message #319151] |
Sat, 17 June 2017 10:49 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Joe,
They are smaller in diameter and shorter.
Just get the large one and focus on other issues that are more critical.
There is too much information out there that should have never been
published.
You need to understand that I have been reading these since 1980.
Spark plug gap is another one. Don't go over .040", Yes the specs are
showing .080", but you need to know that factory specs, once it is
published, it is almost impossible to correct.
On Sat, Jun 17, 2017 at 6:35 AM, Joe williams wrote:
> I was just looking through the GMCMI parts interchange book and noticed
> that the oil filter for the 1978 403 is listed as Wix 51045, 77 403 and
> earlier 455 are 51049 , whats the difference between these 2 filters , are
> they interchangeable? I'm a newbie
> thanks Joe
> --
> jwilly
>
> _______________________________________________
> 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
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Larger Engine Oil Filter [message #319164 is a reply to message #319160] |
Sat, 17 June 2017 11:33 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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The original spec. of .080" spark plug gap with HEI was written to help
control emissions. They had no history with the HEI yet. In protracted use,
coil failures and module failures, and insulation breakdown failures reared
their ugly heads. GM modified the system, changing the diameter and height
of the distributor cap, enlarging the diameter of the secondary conductors,
going to silicone insulation and a bunch of other detail stuff, none of
which was 100% effective at solving component failures. Ultimately, they
changed the spec to .040". That achieved the corporate goal of making the
HEI components last longer than the warranty. Just the way it happens. The
larger plug gaps force the ignition coil to build higher voltage before the
fuel/air molecules ionized and allow the spark to jump (and ignite) the
gap. It also places more heat on the ignition coils and modules, shortening
their lives. Now you know.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Jun 17, 2017 8:50 AM, "Jim Kanomata" wrote:
> Joe,
> They are smaller in diameter and shorter.
> Just get the large one and focus on other issues that are more critical.
> There is too much information out there that should have never been
> published.
> You need to understand that I have been reading these since 1980.
> Spark plug gap is another one. Don't go over .040", Yes the specs are
> showing .080", but you need to know that factory specs, once it is
> published, it is almost impossible to correct.
>
> On Sat, Jun 17, 2017 at 6:35 AM, Joe williams wrote:
>
>> I was just looking through the GMCMI parts interchange book and noticed
>> that the oil filter for the 1978 403 is listed as Wix 51045, 77 403 and
>> earlier 455 are 51049 , whats the difference between these 2 filters ,
> are
>> they interchangeable? I'm a newbie
>> thanks Joe
>> --
>> jwilly
>>
>> _______________________________________________
>> 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
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: [GMCnet] Larger Engine Oil Filter [message #319180 is a reply to message #319154] |
Sat, 17 June 2017 17:05 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Joe,
I will be heading back to the USA in September and on my way back to Sydney
in the middle of December I'm stopping at Manny's for four days to run the
tests.
Problem is that the pickups for the delta P gage are "t's" in the lines at
the outlet of and the inlet to the oil cooler adapter to measure the
pressure drop across the lines and oil cooler, not the filter.
To measure the pressure drop across the filter I would have to weld a
fitting into the oil filter adapter (high pressure side) and use the
existing fitting on the line going to the oil cooler (low side).
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of John R.
Lebetski
Sent: Saturday, June 17, 2017 11:47 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Larger Engine Oil Filter
Yes Rob "Declined". What is the status of the pedantic oil bypass pressure
experiment? Might be interesting to A/B the 2 Wix numbers in the process
and see how or if it changes anything. Cheers.
--
John Lebetski
Woodstock, IL
77 Eleganza II
_______________________________________________
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Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Larger Engine Oil Filter [message #319182 is a reply to message #319151] |
Sat, 17 June 2017 17:11 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Joe,
Wix 51049
https://www.onlinefiltersupply.com/products/51049-wix
Wix 51028
https://www.onlinefiltersupply.com/products/51028-wix
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Joe
williams
Sent: Saturday, June 17, 2017 11:35 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Larger Engine Oil Filter
I was just looking through the GMCMI parts interchange book and noticed that
the oil filter for the 1978 403 is listed as Wix 51045, 77 403 and
earlier 455 are 51049 , whats the difference between these 2 filters , are
they interchangeable? I'm a newbie
thanks Joe
--
jwilly
_______________________________________________
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:
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Larger Engine Oil Filter [message #319217 is a reply to message #319047] |
Sun, 18 June 2017 10:05 |
joewilly
Messages: 40
Registered: April 2016
Location: Victor,Ia
Karma: -1
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Member |
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OK ,I'm still confused - I was just on the GMCMI parts exchange again and it has a completely different list of oil filters for the 1978 403 vs all 455 and the 77 403. what would be different about the 78 403 that it would need a different filter.
Joe Williams
1978 Royale rear twin
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