Oil change

Mike you nailed it. I'm just going to do it at night. Although now driving from Fayetteville to San Antonio we've got a leak of some sort starting.
Looks likes it focused around the front crossmemeber. Slow drip of some type can't really tell where it's coming from crawling under there. I'm hoping
it's not tranny related.
--
Jim DeMellia and Jen Radefeld and our cat Ickis
NH natives
1975 GMC “Palm Beach” ,455, her names Linda
Full time RVers exploring the beautiful and unusual parts of the country.
 
Jimmy,
Put some type of drip pan under your engine/tranny. If the drips are red it's tranny fluid, Brown to Black is engine oil, green is antifreeze.
Scott.
--
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything Lenzi.
Houston, Texas
 
Check the power steering pump -- that's always been my most persistent leak
up front.

Then the front main bearing seal, hoping very sincerely that it's not the
culprit.

Ken H.

> Mike you nailed it. I'm just going to do it at night. Although now driving
> from Fayetteville to San Antonio we've got a leak of some sort starting.
> Looks likes it focused around the front crossmemeber. Slow drip of some
> type can't really tell where it's coming from crawling under there. I'm
> hoping
> it's not tranny related.
> --
> Jim DeMellia and Jen Radefeld and our cat Ickis
> NH natives
> 1975 GMC “Palm Beach” ,455, her names Linda
> Full time RVers exploring the beautiful and unusual parts of the country.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Take a good look at the oil lines going to the radiator oil cooler. If they have not ever been changed the rubber will be rock solid and may be
leaking. They are high pressure up to 60 PSI on a cold engine start. If they are leaking get a set from JR Slaten or Jim K.

The OEM trans lines are all steel and unless they are badly rusted they should not leak. They are very low pressure at that point simply returning
ATF to the tanks pan.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
> Jimmy,
> Put some type of drip pan under your engine/tranny. If the drips are red it's tranny fluid, Brown to Black is engine oil, green is antifreeze.
> Scott.

Clear is power steering.
--
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
 
As has been said before here on the forum...Do not get under these vehicles without some sort of solid support under the frame. Just a simple ten
dollar jack stand placed under each side will save you if something in the suspension gives up while you are under there. These are not the toy cars
everybody is riding around in these days and no crew of people will be able to lift it enough for you to escape and you will be crushed if it comes
down.
--
Terry Kelpien

ASE Master Technician

73 Glacier 260

Smithfield, Va.
 
So crawled under there again. Wiped everything down. Appears to engine oil. Hard to pin point the source,the oil is spareyed on a lot of stuff under
there. Looks like it's focused around the oil pan but can't be sure yet. I'm sure there related but went to drive the coach around the campground to
warm up the fluids and it had a bit of a struggle going into drive. Almost like low on tranny fluid. But once in gear it shifted fine which from my
experience if the tranny fluid is low shifting gears is not a thing. Now I'm very baffled.
--
Jim DeMellia and Jen Radefeld and our cat Ickis
NH natives
1975 GMC “Palm Beach” ,455, her names Linda
Full time RVers exploring the beautiful and unusual parts of the country.
 
The torque converter will leak down and have to fill itself if not driven
for a few days. After you start it and put it in gear it will fill and go
back to its usual operation. No problem.
If you have oil leaking, you will have to find out where it's coming from
to determine the seriousness of the situation. I've always looked at the
little bits mine sprays as complimentary undercoating ...

Mike in NM

> So crawled under there again. Wiped everything down. Appears to engine
> oil. Hard to pin point the source,the oil is spareyed on a lot of stuff
> under
> there. Looks like it's focused around the oil pan but can't be sure yet.
> I'm sure there related but went to drive the coach around the campground to
> warm up the fluids and it had a bit of a struggle going into drive. Almost
> like low on tranny fluid. But once in gear it shifted fine which from my
> experience if the tranny fluid is low shifting gears is not a thing. Now
> I'm very baffled.
> --
> Jim DeMellia and Jen Radefeld and our cat Ickis
> NH natives
> 1975 GMC “Palm Beach” ,455, her names Linda
> Full time RVers exploring the beautiful and unusual parts of the country.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS

Life is too short to hold a grudge; slash some tires and call it even !
 
Jim,
Out of curiosity, if you open the engine Hatch and look at the top front of the engine. Where the engine oil fill sleeve goes into the engine, is
there any oil pooling in that area? Only reason I ask is that you mentioned that the oil is "sprayed". I had a similar issue, turned out to be the
forward intake to block gasket. The fan blew the oil all over the place. I forced gasket sealer in the gasket area and it resealed it.
Scott.
--
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything Lenzi.
Houston, Texas
 
More than one leak source up there. The mechanical fuel pump is a likely
culprit, as are the two lower water pump bolts. The 1/4" ones that screw
into the front timing cover. If they are installed without sealant on the
threads, they are guaranteed to leak. Caution here. DO NOT OVERTIGHTEN
THEM. YOU WILL STRIP THE FEMALE THREADS IN THE COVER.
Jim Hupy
Salem, Or

> Jim,
> Out of curiosity, if you open the engine Hatch and look at the top front
> of the engine. Where the engine oil fill sleeve goes into the engine, is
> there any oil pooling in that area? Only reason I ask is that you
> mentioned that the oil is "sprayed". I had a similar issue, turned out to
> be the
> forward intake to block gasket. The fan blew the oil all over the place. I
> forced gasket sealer in the gasket area and it resealed it.
> Scott.
> --
> Scott Nutter
> 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final
> drive, Quad bags, tankless water heater, everything Lenzi.
> Houston, Texas
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Thanks for all the response guys. I wiped up everything under there pretty good. We are parked at a RV park 15 mins from downtown San Antonio. We're
here till Wednesday so the plan is to take an Uber from here and spend the day in the city. I'll take at everything again when we come back to see if
it is puddling up anywhere in particular without driving it. Worst case scenario are there any recommendations for shops around the San Antonio,
Austin areas in case I can't figure this out thanks again everyone
--
Jim DeMellia and Jen Radefeld and our cat Ickis
NH natives
1975 GMC “Palm Beach” ,455, her names Linda
Full time RVers exploring the beautiful and unusual parts of the country.
 
> Thanks for all the response guys. I wiped up everything under there pretty good. We are parked at a RV park 15 mins from downtown San Antonio.
> We're here till Wednesday so the plan is to take an Uber from here and spend the day in the city. I'll take at everything again when we come back to
> see if it is puddling up anywhere in particular without driving it. Worst case scenario are there any recommendations for shops around the San
> Antonio, Austin areas in case I can't figure this out thanks again everyone

Jimmy,

Use Uber to get you to one of the city bus interchanges. Pick up schedules and then go nuts. The busses are very good, prompt and clean. (And
Cheap).

At the Alamo, don't wait in line to get into the chapel. The Museum is the good part. Do the river walk or even take the boat ride.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
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