86 4runner Thought it was the head gasket?? (1 Viewer)

Joined
Nov 20, 2008
Messages
46
Location
NewCastle, IN
I just bought a 86 runner re with what i thought was a blown head gasket so sent in the head replaced bolts, all gaskets, Did everything. well know i can put new oil in it and run it for ever and no problems but as soon as i shut it off water goes right back in the oil. Block???? any ideas please!!!:bang:
 

2ndGenToyotaFan

Just spend all the money.....
Moderator
Joined
Jan 8, 2006
Messages
9,790
Location
Fallon, NV
 
 
How did the timing cover look? That's usually the next culprit... Were there grooves in it on the drivers side? Did you pull the whole engine and rebuild? Whenever I've left the pan on and pulled the timing cover, I always get lots of water in the pan, and it takes a few flushes of oil to get it all worked out....
 
Joined
Nov 20, 2008
Messages
46
Location
NewCastle, IN
i checked the cover didnt look bad at all i changed everything new water pump oil pump all knew gaskets. I thought it might just have water in it 2. Ive changed the oil 3 times now same thing. Its not a little water its alot total milk when you check it.
 
Joined
Sep 12, 2002
Messages
44
Location
W.central WI
When the timing chain guides and rail brake the chain slaps on the coolant passage inside the timing cover on the left side of the engine. the chain will wear two grooves inside the cover and eventually through the cover letting coolant into the oiling system.
 
Joined
Nov 20, 2008
Messages
46
Location
NewCastle, IN
Its not that i checked the cover. I think its intake or block. Ive done quite a few timing chains. I had one more idiea. The guy i got this thing from blew the head gasket in fall, I bought it in winter do you think that the water in the oil could of froze and caused a crack in the block??? just an idiea.
 

2ndGenToyotaFan

Just spend all the money.....
Moderator
Joined
Jan 8, 2006
Messages
9,790
Location
Fallon, NV
 
 
Wow, that could be a possibility... If he wasn't running very strong coolant... Maybe get a coolant pressure tester, and see if you can find anything?
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top Bottom