22R Coolant in Oil, Help!
#1
22R Coolant in Oil, Help!
Just recently completed a timing chain, cover, oil pump, and water pump replacement. Everything is running well and the engine sounds great, but I noticed my oil start to turn a milky color.
Had no issues prior to the timing chain work.
Initially I had coolant fall into the oil pan after removing the timing cover. So I did two oil and filter changes and that got rid of the milky oil.
Ran it about 300 or so miles with no discoloration and then all of the sudden the milky oil started to come back a little bit (getting a buildup on the inside of the oil filler cap and I can see it on the dipstick)
Changed the oil again and drove it about 100 miles so far with no coolant in oil showing.
Any idea as to what could be causing this?
I don't think it's the head gasket because the car runs great, no white smoke, no over heating...
Could one of the coolant passages by the water pump and the timing cover be leaking slowly? Timing gasket didn't seal correctly around one of them?? Any help would certainly be appreciated!
Had no issues prior to the timing chain work.
Initially I had coolant fall into the oil pan after removing the timing cover. So I did two oil and filter changes and that got rid of the milky oil.
Ran it about 300 or so miles with no discoloration and then all of the sudden the milky oil started to come back a little bit (getting a buildup on the inside of the oil filler cap and I can see it on the dipstick)
Changed the oil again and drove it about 100 miles so far with no coolant in oil showing.
Any idea as to what could be causing this?
I don't think it's the head gasket because the car runs great, no white smoke, no over heating...
Could one of the coolant passages by the water pump and the timing cover be leaking slowly? Timing gasket didn't seal correctly around one of them?? Any help would certainly be appreciated!
#2
I would say you compromised your head gasket if you replaced all of that without removing the head. I know a lot of people have done it that way, personally it stresses me out to get that far into the engine without redoing the HG, but that's just me. Others are more knowledgable than me on the subject though.
#4
The head was not pulled.
On the first attempt I dropped the oil pan and the timing cover was put back on before the pan was.
My dumbass missed a small spot and had a double gasket causing an oil leak and then had to tear it all apart again.
The second time I did it, I didn't drop the pan, which made putting the cover on much harder - clearance between the oil pan and head is very tight.
Because of this, I bent the portion of the head gasket that surrounds the timing chain. I was able to bend it back into shape and get the cover to fit. But the gasket still had a little kink in it, but I don't have any oil leaks where the timing cover mates with the head. And even so, I don't believe this would effect any type of coolant leak?
On the first attempt I dropped the oil pan and the timing cover was put back on before the pan was.
My dumbass missed a small spot and had a double gasket causing an oil leak and then had to tear it all apart again.
The second time I did it, I didn't drop the pan, which made putting the cover on much harder - clearance between the oil pan and head is very tight.
Because of this, I bent the portion of the head gasket that surrounds the timing chain. I was able to bend it back into shape and get the cover to fit. But the gasket still had a little kink in it, but I don't have any oil leaks where the timing cover mates with the head. And even so, I don't believe this would effect any type of coolant leak?
#5
You might try block checking, and pressure testing the cooling system. If it fails either one my guess is it’s coming apart, including the head.
fwiw, I think that’s one of the worst shortcuts. Much better to pull the head. Odds are, if you need a timing chain due to age your headgasket isn’t far away.
fwiw, I think that’s one of the worst shortcuts. Much better to pull the head. Odds are, if you need a timing chain due to age your headgasket isn’t far away.
Last edited by Jimkola; Feb 11, 2021 at 02:47 PM.
#6
Yeah, hindsight is always 20/20 I suppose. I'll start doing some tests, compression and leak down shortly and see what type of results I get. In the meantime, I'll be replacing my leaky radiator and all my hoses.
It's been cold here lately and I'm wondering if what I see on the cap is due to the colder weather and maybe some condensation in the system due to a leak? Who knows for sure. I appreciate all of the help
It's been cold here lately and I'm wondering if what I see on the cap is due to the colder weather and maybe some condensation in the system due to a leak? Who knows for sure. I appreciate all of the help
Thread
Thread Starter
Forum
Replies
Last Post
the_supernerd
03+ 4Runner/GX470, & 05+ Tacomas
3
May 21, 2014 09:48 PM







