| Re: Oil change [message #328008 is a reply to message #327823] |
Mon, 08 January 2018 08:37   |
Jimmy_Bonez
Messages: 105
Registered: September 2017
Location: NH
Karma: 0
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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.
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| Re: Oil change [message #328011 is a reply to message #327823] |
Mon, 08 January 2018 08:46 |
Scott Nutter
Messages: 781
Registered: January 2015
Location: Houston/San Diego
Karma: 4
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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, Dave Lenzi super duty mid axle disc brakes, tankless water heater, everything Lenzi. Alex Ferrera installed MSD Atomic EFI
Houston, Texas
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| Re: Oil change [message #328012 is a reply to message #328008] |
Mon, 08 January 2018 08:51 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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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
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| Re: Oil change [message #328013 is a reply to message #328011] |
Mon, 08 January 2018 08:53 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Scott Nutter wrote on Mon, 08 January 2018 08:46Jimmy,
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
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| Re: [GMCnet] Oil change [message #328014 is a reply to message #328008] |
Mon, 08 January 2018 08:50 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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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.
On Mon, Jan 8, 2018 at 9:37 AM, Jim D. wrote:
> 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
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: Oil change [message #328017 is a reply to message #328013] |
Mon, 08 January 2018 09:04 |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
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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.
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| Re: Oil change [message #328018 is a reply to message #327823] |
Mon, 08 January 2018 10:02 |
Jimmy_Bonez
Messages: 105
Registered: September 2017
Location: NH
Karma: 0
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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.
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| Re: Oil change [message #328023 is a reply to message #327823] |
Mon, 08 January 2018 11:15 |
Scott Nutter
Messages: 781
Registered: January 2015
Location: Houston/San Diego
Karma: 4
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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, Dave Lenzi super duty mid axle disc brakes, tankless water heater, everything Lenzi. Alex Ferrera installed MSD Atomic EFI
Houston, Texas
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| Re: [GMCnet] Oil change [message #328025 is a reply to message #328023] |
Mon, 08 January 2018 11:23 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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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
On Jan 8, 2018 9:16 AM, "Scott Nutter" wrote:
> 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
>
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| Re: Oil change [message #328031 is a reply to message #327823] |
Mon, 08 January 2018 12:54 |
Jimmy_Bonez
Messages: 105
Registered: September 2017
Location: NH
Karma: 0
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Senior Member |
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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.
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| Re: Oil change [message #328039 is a reply to message #328031] |
Mon, 08 January 2018 14:21 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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Jimmy_Bonez wrote on Mon, 08 January 2018 13:54Thanks 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 - 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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