Home » Public Forums » GMCnet » oil cooler lines access
| oil cooler lines access [message #281622] |
Tue, 07 July 2015 08:51  |
pzerkel
Messages: 212
Registered: September 2007
Location: Salisbury, IL
Karma: 0
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Senior Member |
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What is the best way to access the oil cooler lines? From above or below? It appears I have an oil leak at the lines. And I could not get a wrench on them with enough room to swing it. I was trying to do this from underneath. It looked like it might be easier from the top, but then the battery is in the way-of course that is easily removed.
Just wondered if there were any secrets to this or special tools that could make the job less daunting. I have a set of JR Slaten's lines that have been sitting waiting to be installed for way too long.
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
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| Re: oil cooler lines access [message #281667 is a reply to message #281622] |
Tue, 07 July 2015 15:00  |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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Senior Member |
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pzerkel wrote on Tue, 07 July 2015 08:51What is the best way to access the oil cooler lines? From above or below? It appears I have an oil leak at the lines. And I could not get a wrench on them with enough room to swing it. I was trying to do this from underneath. It looked like it might be easier from the top, but then the battery is in the way-of course that is easily removed.
Just wondered if there were any secrets to this or special tools that could make the job less daunting. I have a set of JR Slaten's lines that have been sitting waiting to be installed for way too long.
Original or aluminum radiator? Lines at the filter or the radiator.
I find it easier to get to the lines at the filter through the wheel well, over the tire. The top one on the aluminum radiator - blind from the front through the removed grill.** Bottom from underneath.
** Only once. The next time the radiator went in with the hose attached...
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: oil cooler lines access [message #281668 is a reply to message #281667] |
Tue, 07 July 2015 15:04 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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Senior Member |
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Joe Weir wrote on Tue, 07 July 2015 15:00The top one on the aluminum radiator - blind from the front through the removed grill.** ...
Clarify: Reaching in through the grill opening and around the radiator.
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: [GMCnet] oil cooler lines access [message #281669 is a reply to message #281668] |
Tue, 07 July 2015 15:21 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Buy some large sae tubing wrenches before you strip a line nut or knock a
bung loose on the radiator tank.
Sully
77 royale
77 eleganza 2
Seattle
On Tuesday, July 7, 2015, Joe Weir wrote:
> Joe Weir wrote on Tue, 07 July 2015 15:00
>> The top one on the aluminum radiator - blind from the front through the
> removed grill.** ...
>
>
> Clarify: Reaching in through the grill opening and around the radiator.
> --
> 76 Birchaven - New engine, trans, aluminum radiator, brakes, Sully
> airbags, fuel lines, seats, upholstery, adult beverage center... those
> Coachmen
> guys were really thinking about us second hand owners by including that
> beverage center...
> Columbia, SC.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] oil cooler lines access [message #281671 is a reply to message #281669] |
Tue, 07 July 2015 15:46 |
pzerkel
Messages: 212
Registered: September 2007
Location: Salisbury, IL
Karma: 0
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Senior Member |
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I was wondering about this. I know that the JR Slaten lines use 3/4" nuts. I am not entirely sure what size the nuts on the existing lines are, but I think it is likely also 3/4". I know that largest flare wrench that I own is 11/16". I will shop for some larger flare wrenches. I was also considering a crow's foot (have found some crow's food flare sockets), but am not sure if that is really needed.
Also FYI, I have the original radiator.
sgltrac wrote on Tue, 07 July 2015 15:21Buy some large sae tubing wrenches before you strip a line nut or knock a
bung loose on the radiator tank.
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
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| Re: [GMCnet] oil cooler lines access [message #281674 is a reply to message #281671] |
Tue, 07 July 2015 16:25 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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The braided lines I sourced from Applied were the same size as the oe iirc.
Don't have the coach handy at the moment or I would check. The lines on The
Pig were very tight on the radiator tank. I did my lines from below but
there are no fender liners in The Pig.
Sully
77 royale
77 eleganza 2
Seattle
On Tuesday, July 7, 2015, Paul Zerkel wrote:
> I was wondering about this. I know that the JR Slaten lines use 3/4" nuts.
> I am not entirely sure what size the nuts on the existing lines are, but I
> think it is likely also 3/4". I know that largest flare wrench that I own
> is 11/16". I will shop for some larger flare wrenches. I was also
> considering a crow's foot (have found some crow's food flare sockets), but
> am not sure if that is really needed.
>
> Also FYI, I have the original radiator.
>
>
> sgltrac wrote on Tue, 07 July 2015 15:21
>> Buy some large sae tubing wrenches before you strip a line nut or knock a
>> bung loose on the radiator tank.
>
>
> --
> Paul Zerkel
> '78 Eleganza II
> Salisbury IL (near Springfield)
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Unsubscribe or Change List Options:
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: oil cooler lines access [message #281701 is a reply to message #281622] |
Wed, 08 July 2015 12:07 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
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Senior Member |
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I replaced mine on my 403 with Mr. Slaten's this summer. I accessed everything through the wheel well, removed the liner, but did not need to remove the tire. I will say I found some new yoga positions while doing it however...
I sprayed the fittings for a week with PB Blaster. Carefully removed the lines from the radiator with a second wrench on the rad fitting. As my lines were in bad shape and I did not feel like fighting I cut the old ones closer to the filter housing so I could carefully drain any remaining oil in them into a proper container for disposal. This also helped to not make a mess overall.
With the Slaten lines I had to REUSE the small fittings that go into the oilfilter housing end. Once the filter housing end of the lines were removed I took the to the bench to remove that fitting from the remainder of the hose. They were in super tight. Im not sure of the proper term for those fittings, Unions, couplers, reducers, but I needed to use both of them to go from the filter housing to the new SS lines.
At anyrate, I used Locktite 567 on the threads per the recommendation of a respected GMCer. (I only found it through Grainger) and its pricey, but have enough to last a lifetime.
Since the end which goes into the filter housing is static, those ends need to go in first and rotate the whole line until its snug. Then snake them up to the radiator and you can snug that end down (90 degree bend ends) last making sure you dont have any excessive kinks, twists, or bends.
While the filter housing was disconnected I also replaced the gasket which goes under that housing. Dorman 917-036 Filter housing adapter gasket. and torqued down the big nut that holds the filter housing in place I want to say it was 65 ft pounds. I might add that was loose when I started and was leaking oil through an old gasket. So bonus to get that done.
Once everything was tight I let the coach sit overnight. Fired it up and no leaks... Great set of lines, and happy that the job is done.
Hope this helps. its just what I did, other results may vary.
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
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