oil blow back in air cleaner

[allterrain2000]

Hi guys,

Just wondering what the thoughts are a 94 turbo diesel gq with 250 k on same (4.2) has now started consuming oil and blowing considerable amounts oil into the airbox/cleaner. Is there something blocked? I haven't heard of it before, the truck has good serivce history and only started doing it last 5000 ks.

Cheers
Jase

[PGS 4WD]

Its unfortunate but the likelyhood is the rings are gone, sounds like you have high blow by. I can't remember if there is one or two breathers on the TD42 rocker cover. If there is two check the one that dosent go to the air box for blockages but I think you'll find its rings if the engine still runs smooth it may have been dusted, if its idle is rough you may have a cracked or damaged piston.
Joel

[allterrain2000]

Thanks for that Joel I will pass the bad news on to my mate he wont be happy!


PS Do you know roughly how much he should pay for a rebuild? If he was to go that way?

Cheers
Jase

[wrksux]

Decent rebuilt anywhere from roughly 5-9k

[sld86]

i had same problem after trying for big numbers on dyno with alot of boost dropped all its water,heaps of smoke then shut it off. tried to start it 5 minutes later and idled like a v8 with a massive cam in it with heaps of blow bye = rings,holes in pistons,stuffed head, full rebuild qoute was $9000 u can pick up a td42 for under 4000 if you look hard thats your best bet id say