blowing smoke??? need advice please.... longish post sry.

subelover · Post by **subelover** » Mon Apr 17, 2006 6:37 pm

hi, i own a 1989 l series wagon ea82 carb model. 285,000kms with the standard lifter rattle. ive had the car for 12 months now and over that time the car has had 3 services( every 5,000km ). now the prob ive got is that once the car is warm ( it runs fine) coasting down hill off the throttle say 4th or 5th gear 80-90kph there is an awful lot of smoke absolutly pouring out the exhaust. once the road levels out give it a bit of a rev and vola no smoke. whats happening here? ive heard that the oil fets trapped and cant return to the sump? is that correct? look any info or advice much appreciated cheers

BaronVonChickenPants · Post by **BaronVonChickenPants** » Mon Apr 17, 2006 6:58 pm

Sounds like valve stem seals to me, not really sure though.

Jordan.

tim_81coupe · Post by **tim_81coupe** » Mon Apr 17, 2006 8:03 pm

I have nearly the same problem with my EA82 powered wagon, only happens on banked 4wd / gravel tracks (like on the outside of a lake or dam).
It got me a bit worried this weekend just gone, at a guess I'd say its something to do with high oil pressure causing a leak in a seal somewhere, perhaps the stem seals.

Biggest question really is: what colour is the smoke?

smoov · Post by **smoov** » Tue Apr 18, 2006 12:03 am

i have a feeling this has some relation to crankcase pressures...

have you have any modification to these tubes?
im guessing for some reason, you're getting a mass amount of oil down the gullet of your carby.

next time this happens, stop, and pull over. open the airfilter housing, and see if there is an abundance of oil there.

other people have been discussing this issue previously.

tim_81coupe · Post by **tim_81coupe** » Tue Apr 18, 2006 2:19 am

Good call Smoov. I'll be checking that out!

subelover · Post by **subelover** » Tue Apr 18, 2006 9:27 am

hi, thanks for the reply guys. smoov.. carnkcase pressure?? what tubes would i b modifying? ive been told about the valve stem seals.coming up to 300,000 rekon it mite nearly b time to pull her down and do the cambelt,rings,bearings,lifters. its black smoke that comes out of the exhaust b the way. anything about blocked breathers? yes there was oil in the airfilter housing but i think it all blowby.

BaronVonChickenPants · Post by **BaronVonChickenPants** » Tue Apr 18, 2006 2:36 pm

Might be worth checking your PCV valve.

Jordan.

Willie · Post by **Willie** » Tue Apr 18, 2006 4:37 pm

I'm with the valve stem seal conclusion.

Had same problem with a VW years back.

subelover · Post by **subelover** » Tue Apr 18, 2006 5:19 pm

hi, checked the pcv valve. was ok. Valve stem seals a big job? how much? rocker gear need to be pulled off?? could do the clearances while im at it....they are adjustable? shim set up? not hyraulic adjustment are they? cheers ben

tim_81coupe · Post by **tim_81coupe** » Tue Apr 18, 2006 6:32 pm

Hmm... mine was white smoke.

Black smoke indicates a very rich fuel mixture, is your carby in good nick?

subelover · Post by **subelover** » Tue Apr 18, 2006 7:05 pm

hmm carb is in pretty good nick had a rebuild kit in it just b4 i brought it. i thought blue smoke was fuel, black smoke oil? i was thinking blowby and burning it through the carb? mite b wrong

Gen03 · Post by **Gen03** » Tue Apr 18, 2006 7:57 pm

u'll find blue smoke is oil and black smoke is fuel