199222re

92 22re efi in a 92 deluxe cab 2wd. So I’ve been dealing with this for a year now. Coolant leaks straight into the oil pan from a leak in the timing chain cover. Brand new timing chain cover, have tried multiple gasket makers, multiple gaskets and it leaks the second I fill up the coolant. Leaks without coolant line pressurized. Tested that both surfaces were flat with a straight edge. Sits flat when I test fit it. Never had this issue with any vehicle before. Just looking for any suggestions or if anybody has ran into this issue before

Jimkola

What brand timing cover?
Did you pull the head?

millball

Might be a casting defect. I'd try a different cover.

199222re

idk the brand, I got it from 22reperformance.com. I didn’t pull the head, I opted to remove the oil pan instead so I don’t mess up the head gasket

199222re

I still have the old one, I will clean that up and give it a shot before I buy another new one, but its worth a shot. Thanks

Jimkola

Looking at the image 22REperformance has on their website, my best guess is they're selling a DNJ timing cover.("meh" would be an understatement regarding my impression of DNJ)
Most sites that sell 22R# parts offer DNJ I'm guessing because they can make a good profit margin and still be one of the lowest prices.

Clean up your old one and evaluate, or order an Aisin cover. The only time I've seen an Aisin cover(or oem) dump coolant is when the chain rubs and hits that coolant passage. And that type of wear is more than obvious.

199222re

Clean up your old one and evaluate, or order an Aisin cover. The only time I've seen an Aisin cover(or oem) dump coolant is when the chain rubs and hits that coolant passage. And that type of wear is more than obvious.[/QUOTE]

there is definitely no rubbing. Re-did the timing chain while I was doing all this just in case since it had plastic guides and I was already there. Well I’ll definitely go that route if I get another cover. Thanks for the advice.

Jimkola

If the plastic guides were broken the rubbing on the inside of the timing cover is hard to miss.
I understand the appeal of metal guides, but there's a good argument for the plastic.

199222re

they had definitely started rubbing on the old timing chain cover. Didn’t go all the way through, but again I had everything apart so I decided to just get a new TC, guides, and cover. The old cover is actually aisin brand. I haven’t heard the argument for plastic guides, I’m curious what that is?

Jimkola

Over time, the chain stretches. This is expected and the hydraulic tensioner compensates and keep the chain tight. That is, until the tensioner gets maxed out.
As the chain continues to stretch it will eventually smack and break the plastic guides and the driver will hear an odd metallic grating sound at idle. If the driver ignores the sound a few things could happen. The chain could break, and the 22R# is an interference engine. Or it could skip teeth and start bending valves. If neither of these two events occurs then rubbing through to the water jacket is pretty much a guarantee. BUT, the point being, the broken guides gave the driver a heads up by virtue of the rattly noise at idle.
With metal guides there’s a risk that the driver will have a stretched out chain and not know. Their warning might not occur until the chain starts skipping teeth, or worse, breaks.
There's pros and cons to either guide.