| oil cooler lines [message #300158] |
Wed, 04 May 2016 16:16  |
vega7677
Messages: 24
Registered: October 2009
Karma: 0
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Junior Member |
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Took the 78 Royal out today to pick up a grandson at school ,parked it in the driveway. Went back outside a little later ,looked under it and seen a oil leak at the oil filter . Turns out that one of the old oil cooler lines is leaking out of the old rubber line. Question is if anyone running out the oil cooler . How much difference does the oil cooler make ?
Am going to check around to see if anyone here can make them or has anyone ever made a repair on thiers .
Thanks ,
Sherman
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| Re: oil cooler lines [message #300161 is a reply to message #300158] |
Wed, 04 May 2016 17:56  |
bobby5832708
Messages: 237
Registered: November 2006
Location: Winter Springs FL
Karma: 3
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Senior Member |
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I have been running without the oil cooler for a while now, don't remember exactly how many years. I've found that the oil temp runs 35 to 40 degrees above the water temp and the hottest oil temp I've seen was in the 260's on a 100 degree day (actually 106 degrees air temp). This past weekend on a beach trip with 85-to-90 degrees air temp the oil was in the 220's. So far my original 455 still runs fine. I use either Delo 15-40 or Shell 10-30 oil, nothing fancy or expensive, whatever is on sale at Costco. Sometimes a mix of the two depending on what's in the garage at the time.
That said, I do not tow anything nor do I climb mountains. I live in Florida where it's pretty flat and doesn't get as hot as, say, Arizona in the summer.
JWID, YMMV. The usual disclaimers. What works for me may not work for you.
Bob Heller
2017 Winnebago 29VE
Winter Springs FL
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| Re: [GMCnet] oil cooler lines [message #300170 is a reply to message #300161] |
Wed, 04 May 2016 22:12 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Bob,
There is no right answer, as there are data indicate one way or other.
I personally feel that the people at GM would have not used it if they felt
it was not necessary.
On Wed, May 4, 2016 at 3:56 PM, Bob Heller wrote:
> I have been running without the oil cooler for a while now, don't remember
> exactly how many years. I've found that the oil temp runs 35 to 40 degrees
> above the water temp and the hottest oil temp I've seen was in the 260's
> on a 100 degree day (actually 106 degrees air temp). This past weekend on a
> beach trip with 85-to-90 degrees air temp the oil was in the 220's. So far
> my original 455 still runs fine. I use either Delo 15-40 or Shell 10-30
> oil, nothing fancy or expensive, whatever is on sale at Costco. Sometimes
> a mix of the two depending on what's in the garage at the time.
>
> That said, I do not tow anything nor do I climb mountains. I live in
> Florida where it's pretty flat and doesn't get as hot as, say, Arizona in
> the
> summer.
>
> JWID, YMMV. The usual disclaimers. What works for me may not work for you.
> --
> Bob Heller
> 1974 X-Canyonlands 26ft
> Original 455 exc for timing chain,
> Rockwell intake, valve covers. 136k miles.
> Winter Springs FL
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Fremont,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] oil cooler lines [message #300171 is a reply to message #300161] |
Wed, 04 May 2016 20:23 |
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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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Bob,
Where is your oil temp sensor located?
Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Bob Heller
I have been running without the oil cooler for a while now, don't remember exactly how many years. I've found that the oil temp runs
35 to 40 degrees above the water temp and the hottest oil temp I've seen was in the 260's on a 100 degree day (actually 106 degrees
air temp). This past weekend on a beach trip with 85-to-90 degrees air temp the oil was in the 220's. So far my original 455 still
runs fine. I use either Delo 15-40 or Shell 10-30 oil, nothing fancy or expensive, whatever is on sale at Costco. Sometimes a mix of
the two depending on what's in the garage at the time.
That said, I do not tow anything nor do I climb mountains. I live in Florida where it's pretty flat and doesn't get as hot as, say,
Arizona in the summer.
JWID, YMMV. The usual disclaimers. What works for me may not work for you.
--
Bob
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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: oil cooler lines [message #300181 is a reply to message #300158] |
Thu, 05 May 2016 07:54 |
bobby5832708
Messages: 237
Registered: November 2006
Location: Winter Springs FL
Karma: 3
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Senior Member |
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Rob,
The oil temp sensor is aluminum-duct-taped and hose-clamped to the side of the oil filter. The oil at this point is right as it comes out of the oil pump. Seeing as how the oil temp closely tracks the water temp I will probably remove it in the future. One less gauge to watch.
Jim K,
I agree that GM put the oil cooler on for a reason. If I were running the GMC at high loads for extended periods (climbing mountains while pulling a towd) I would use an oil cooler too. The only mountains I've been in were in Northern Georgia (Gainesville area) and I didn't see abnormal oil or water temps. If I were pulling a towd things may have been different. For my driving, the lack of an oil cooler doesn't seem to be a bad thing. And I don't have to deal with the constant small drips (no matter which gasket I used), the possibility of a radiator cooler failure (at the time I removed the cooler I had the original radiator tanks/coolers), and the possibility of a cooler line bursting (although I had the Slaten hoses which should last forever). My original 455 still runs fine. If the 455 blows up I have another one ready to go in, I just need an excuse to do it. Again, JWID.
Bob Heller
2017 Winnebago 29VE
Winter Springs FL
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| Re: oil cooler lines [message #300182 is a reply to message #300158] |
Thu, 05 May 2016 08:36 |
Tilerpep
Messages: 404
Registered: June 2013
Location: Raleigh, NC
Karma: 7
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Senior Member |
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I did mine yesterday as a matter of fact...local shop ended up only $15 cheaper than Slaten's offering and are not stainless wrap. Would go with his if to do over.
One advantage of local, he showed me how to read the date codes on the old ones and also got an LP hose in the tank compartment. 1990 for oil lines, and original 1975 for lp hose! One more LP section under the coach I am now intent on getting to next, it is near the black tank about two feet long.
Hot oil blowing back on exhaust headers with potential for fire was one trip narrative I wanted to avoid!
1975 Glenbrook, 1978 Royale rear bath
Raleigh, NC
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