Timing chain cover won’t seal. Leaking coolant straight into oil pan
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Timing chain cover won’t seal. Leaking coolant straight into oil pan
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
#2
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What brand timing cover?
Did you pull the head?
Did you pull the head?
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#6
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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.
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.
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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.
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.
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#8
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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.
I understand the appeal of metal guides, but there's a good argument for the plastic.
Last edited by Jimkola; 08-13-2024 at 11:13 AM.
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#10
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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.
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.
Last edited by Jimkola; 08-22-2024 at 01:47 PM.
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