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Old 07-21-2021, 04:55 PM   #11
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That's the plan. I'll be doing a leak down test at some point to determine if being out of time has bent any valves.

Would burnt coolant coming out the exhaust confirm bent valves? I have confirmed a bad seal given the chocolate milkshake of engine oil, how would coolant, heated by hot oil, escape the crank case? I'm thinking through a bent valve or the head gasket, but I don't think its the head gasket. Any other way it could be getting out of the crankcase?
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Old 07-22-2021, 10:10 AM   #12
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You could use a bore scope to look through the spark plug holes at the top of the pistons to see if there is any indication of contact with the valves.
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Old 07-22-2021, 02:13 PM   #13
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Thanks, I may do that. If the pistons have been marred by valve strikes, would they need to be replaced? Does not seem like that would affect compression.
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Old 07-22-2021, 03:56 PM   #14
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My wife had a 97 that suddenly blew the head gasket. There were deep marks on all of the pistons. Who knows how long those had been there?
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Old 07-23-2021, 09:47 PM   #15
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The pistons will have relief cuts in them from the factory so make sure you don’t mistake those for valve impact marks.
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Old 07-24-2021, 01:09 AM   #16
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I’m pretty sure the pistons don’t have relief cuts for the valves.
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Old 07-26-2021, 08:11 PM   #17
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Any put RTV or other sealant on their valve cover bolts prior to installing?

Trying to think of every way to prevent coolant leaking into the crankcase.
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Old 07-26-2021, 10:50 PM   #18
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I’ve never used RTV on the bolts, just a thin smear on both sides of the gasket
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Old 07-27-2021, 03:02 PM   #19
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Alabama...what type do you use? Regular, Ultra, or High-Temp?


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Old 07-27-2021, 04:39 PM   #20
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Whatever I have laying around. Just to hold the gasket in place during installation
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