| Oil cooler lines [message #344633] |
Fri, 28 June 2019 06:17  |
Wardhill
Messages: 63
Registered: May 2019
Location: West Baldwin, Maine
Karma: -1
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Ive been having a slight oil leak under my coach . I got under there and everything had a light coating of oil . Cleaned everything off trying to find the source. I suspect the flexible section of the oil cooler lines so i want to replace them. What are the size and type of the fittings at the radiator and where they meet the hard lines? Any other recommendations would be very helpful
Thanks,
Jeff
Jeffrey Fleming
1976 edgemonte
Living in Maine
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| Re: Oil cooler lines [message #344635 is a reply to message #344633] |
Fri, 28 June 2019 06:57  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Wardhill wrote on Fri, 28 June 2019 07:17Ive been having a slight oil leak under my coach . I got under there and everything had a light coating of oil . Cleaned everything off trying to find the source. I suspect the flexible section of the oil cooler lines so i want to replace them. What are the size and type of the fittings at the radiator and where they meet the hard lines? Any other recommendations would be very helpful
Thanks,
Jeff
Jeff,
Oil leaks can be a bear to track down. And yes, oil ends up everywhere.
Before you do anything rash, get a can of brake parts cleaner and another can of spray powder - either foot spray or deodorant. The fittings often leak and can stopped by just making up a little harder. If the line is leaking, there is nothing to do but replace it. If it is an OE line, the end fittings are reusable. If you can find a shop in Portland that does hydraulics, they can take those lines and "re-hose" them.
I happen to like the JR lines a lot and so have them now. With the cost of the rebuilt engine, that was just noise.
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: Oil cooler lines [message #344636 is a reply to message #344635] |
Fri, 28 June 2019 07:19 |
Justin Brady
Messages: 769
Registered: April 2015
Location: Bell Buckle, TN
Karma: 11
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Senior Member |
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I had the same leak for thousands of miles before I could track it down.
Got single piece replacement lines from JimK and the problem seems to be solved!
The 403 had single piece lines and the 455 has 2 piece for some reason. I prefer the single piece as it's one less place to leak! To put the single on the 455 you just need a couple of angled adapters coming out of the filter housing.
Justin Brady
http://www.thegmcrv.com/
1976 Palm Beach 455
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| Re: [GMCnet] Oil cooler lines [message #344642 is a reply to message #344641] |
Fri, 28 June 2019 08:47 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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gmcrvparts.com
On Fri, Jun 28, 2019 at 6:44 AM Jim Kanomata wrote:
> You must replace that hose as several have lost their engine when the line
> gave away. Yes we stock JRSlaton products and All others.
> Those oil lines get hot and after 40 years they give out.
> Visit our new web site: www.gmcrvparts.com.
> We assist Everyone with tech questions. 800-752-7502
>
> On Fri, Jun 28, 2019 at 5:33 AM Justin Brady via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> I had the same leak for thousands of miles before I could track it down.
>> Got single piece replacement lines from JimK and the problem seems to be
>> solved!
>>
>> The 403 had single piece lines and the 455 has 2 piece for some reason. I
>> prefer the single piece as it's one less place to leak! To put the single on
>> the 455 you just need a couple of angled adapters coming out of the
>> filter housing.
>>
>> --
>> Justin Brady
>> http://www.thegmcrv.com/
>> 1976 Palm Beach 455
>>
>> _______________________________________________
>> 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
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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 #344646 is a reply to message #344644] |
Fri, 28 June 2019 12:09 |
Wardhill
Messages: 63
Registered: May 2019
Location: West Baldwin, Maine
Karma: -1
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Looks like those nuts at the end of the hoses are 20mm can't seem to find a flare wrench that size😒
Why is everything so hard?
Jezzz
Jeffrey Fleming
1976 edgemonte
Living in Maine
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| Re: [GMCnet] Oil cooler lines [message #344647 is a reply to message #344646] |
Fri, 28 June 2019 12:18 |
Rob
Messages: 651
Registered: November 2013
Location: Victoria, BC
Karma: 3
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Senior Member |
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When I did mine last fall - I needed to buy a 3/4"x7/8" flare wrench. I
seem to recall it was the 7/8" that I used/needed (but it was over six
months ago!)...
Rob
Victoria, BC
76 Royale - Rear Twins/Dry Bath
On Fri, Jun 28, 2019 at 10:10 AM Jeffrey Fleming via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Looks like those nuts at the end of the hoses are 20mm can't seem to find
> a flare wrench that size😒
> Why is everything so hard?
> Jezzz
> --
> Jeffrey Fleming
> 1976 edgemonte
> Living in Maine
>
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Rob -
Victoria, BC -
76 Royale - Rear Twins/Dry Bath
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| Re: Oil cooler lines [message #344679 is a reply to message #344633] |
Sun, 30 June 2019 07:48 |
Wardhill
Messages: 63
Registered: May 2019
Location: West Baldwin, Maine
Karma: -1
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Member |
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So all is back together and working well
Remove everything from radiator back to adapter seemed like the fitting on the hoses were really really lose, hoses looked brand new. Put in new gasket at adapter changed oil filter and re torqued all fittings running dry now. Wrestled with replacing hoses while they were out but couldn't wait with the forth coming up plus hoses did look great after I degooked them . Things are shaping up
Happy motoring everyone and thanks
Jeffrey Fleming
1976 edgemonte
Living in Maine
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