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1995 850 basic/ lost all engine oil

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ddixon
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Joined: 02 Oct 2007, 12:10
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Post by ddixon »

Thanks for the tip about the pan side gasket. however I don't think that is the problem.

Let me tell you about today's chapter in the Saga of the missing slippery stuff. I did indeed put the car up on the ramps. I put a gallon of oil in the sump. Next I pulled off the timing belt cover & the valley cover. Well I have to tell you what happened next is very strange. I noticed a small stream of new engine oil creeping out from under the car, before I had even started the engine. crawled under & checked the sump pan & the drain plug. Both dry & clean. A little brilliant investigation & I think I have solved the problem. With the car On the ramps. the intake cam is higher than the exhaust cam. when I poured in the oil, it flowed back to the exhaust cam, & out the cam seal. So I will change the cam oil seals & report back.

ddixon
Posts: 14
Joined: 02 Oct 2007, 12:10
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Post by ddixon »

Well the weather & my schedule has changed enough to get back to my 850. pulled the cam shaft gears off & there hanging loosely, on the end of the exhaust cam was that pesky little cam seal. mystery solved. or at least part of it.
Does anybody have any suggestions on how the engine developed enough crank case pressure to blow out that seal?
Don't forget it has no turbo charger & the cylinder head has just been completely re manufactured. with all new gaskets & seals.
Just to be safe I am replacing all four cam seals. Thanks

JRL
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Post by JRL »

100% clogged breather system and flame trap
Mod note. Jim passed away in early 2022, his contributions to this forum are immortal, and he is missed. RIP

2000 V70R Black, 144,000 miles Wife's R.
2007 V70 2.5T White/Oak 111,000 MILES. Polestar tune, IPD bars, rear spoiler, dark grey Thors, DWS 06, HU850, sub.

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misha
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Post by misha »

JRL wrote:100% clogged breather system and flame trap
+1

That should be the ONLY reason.I'm 99% sure that flame trap was completelly clogged.

Remove that plastic screen out of the flame trap and throw it away...almost all of MVS members,including me,did it. :wink:
2010 S80 D5 / restyling / fully equipped / Twin turbo / Savile Gray Metallic (492)

History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon

precopster
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Post by precopster »

Perhaps also time for a new oil trap and new clamps.

A motor I recently reconditioned had a totally blocked oil trap engine port at only 75,000 miles.
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

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