cyl head freeze plug
#1
cyl head freeze plug
I'm in the process of trying to repair every little oil leak I can find on my 99 before it's reassembled, and I noticed that there is oil collecting on the lower half of the freeze plug on the side of the cylinder head. (small plug, size of a quarter)
This may be a stupid question, but if this plug were to be leaking, there should be coolant dripping out of it and not motor oil right? I'm not sure if this was used in casting and covers an oil gallery or not?
Any takers?
This may be a stupid question, but if this plug were to be leaking, there should be coolant dripping out of it and not motor oil right? I'm not sure if this was used in casting and covers an oil gallery or not?
Any takers?
Last edited by flounder; 11-26-2011 at 06:25 PM.
#2
Boost Pope
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I never noticed that little plug before.
The pressurized oil feed from the block into the head comes up right between #2 and #3 on the intake side. Here's a picture looking down onto the deck surface of the block with the head removed. The feed in question is circled in red:
Not exactly rock-solid evidence, but it certainly seems plausible that your mystery plug is on the main oil galley.
The pressurized oil feed from the block into the head comes up right between #2 and #3 on the intake side. Here's a picture looking down onto the deck surface of the block with the head removed. The feed in question is circled in red:
Not exactly rock-solid evidence, but it certainly seems plausible that your mystery plug is on the main oil galley.
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