Siccished

So the timing guide broke off and started chipping away at the cover. I replaced the chain, pulled the pan and found the normal broken chipped peices of chain guides and part of the aluminum cover.

This was fresh oil with less than 10 miles on it and shortly after the chain replacement I ran the motor for 10 minutes and drained the oil to see really THICK dark GREY sludgy oil come out.

Truck doesnt smoke and I'm temporarily using water only in the radiator (was flushed).


Can anybody explain this?
This is a 22re

874runnersr5

It could have ate its way thru the timing cover, even a pinhole leak wouldn't be noticeable with your eye.

Siccished

hmm, I guess that could explain it..
I replaced the oil and filter after removing and installing the oil pan today, so HOPEFULLY I won't see this grey oil again. I don't need a blown HG right now

PlugItIn

I agree with this...but your original post doesn't say you replaced the timing chain cover?

Siccished

More info:

Before t chain replacement the oil was normal.I changed the oil before parking the truck to change out the chain.

Replaced the cover and chain components right after.

I ran the motor for 10 minutes afterwards and then pulled the pan. I found bits of the chain guide along with chunks of the chain cover along with the GREY OIL. So far after running the motor afterwards for 5 minutes the dipstick oil seems clean.


This truck was sitting ina humid area for about 1 year without starting. When I pulled the valve cover there was a little white liquid on top of the valve train which I think was water moisture mixing with oiil.

874runnersr5

Yeah, well aslong as you ran it and now it seems good you should be set..
Just keep a eye on it

Siccished

Ran it again for a few minutes and checked the dipstick afterwards. It was a little foamy, possibly a slight white tinge to it.


With a timing chain replacement job, what could cause me to leak water into the oil? As far as I know, the only thing could be physically dumping water into the exposed oil pan w/ the timing chain cover removed OR a leak through the water pump housing area. I've already changed the oil once, so im hoping that it doesnt turn that color again...

Siccished

Looks like I definitely got water in the oil
This is fresh synthetic oil (walmart stuff) after running the motor for 10 minutes...

Any insight?

Jay351

You sure you got your gaskets all in right??

camo31_10.50

is anybody seein that badass silver 2nd gen in the road..hahahaha

and yes...there is either a pinhole..or a gasket not there..or in the wrong place..or fubarred

Siccished

2 paper gaskets for eachside of the timing chain cover

1 paper gasket for the water pump

1 rubber ring for the oil pump
And the thick round seal that is pressed in.

For some reason the water pump also came with the same ring that the oil pump came with.


I also think I'm having a sealing problem. Does the above sound good? Any info on the duplicate ring mentioned above? I think all of the bolts were the correct ones!


Helpppp
Ps: the silver truck in the pic is the problem at hand

Siccished

Is there any tricks to this? On monday ill have to take off the cover and re-do the gaskets again..

874runnersr5

Best bet is to tear it apart, and give everything a good do-over.

Siccished

I drained the oil which remained the same color as in the pics. The previous oil drain was a THICK grey color.

I flushed after the drain with a quart, tossed in new oil, ran it for 10 min and its CLEAR! I'm thinking that there was residual water from the water pump and hlock water ports which leaked down into the exposed oil pan during chain replacement. And this residual remained in the block until flushing it for the second time.


I will watch the oil now and hopefully it'll be good

fiasco8

It has been a while since anyone posted here.

Can anyone confirm that coolant can drain into oil pan when pulling timing cover.

Since I pulled and reinstalled the oil pan the day before I did the timing chain I didn't realize this would happen. Can anyone confirm this?

vital22re

iTrader: (2)

Yes coolant can drain down into the pan. Thats why its best to either pull the oil pan, or head completely off. If you pull the head, then you need to drain whats left in the pan to clear it out.

fiasco8

Thx for confirm.

I did pull the pan but put it back on before I did the timing chain. I flushed it 3 times yesterday before getting all the coolant out of the oil pan. Drove it 100 miles yesterday so it should be good after another flush in the next week.