Preparing to replace head gasket... What do I need? Where do I start?

brettk

SILVER Star
Joined
Apr 6, 2020
Messages
55
Location
Knoxville, TN
I have a 94 doing the exact same thing. I go through about 2 quarts between changes and when I’m parked on a hill, it smokes like crazy. Also like you, I’m not a skilled mechanic. From what I’ve read and been told (take it for what it’s worth), the valve stem seals are shot, and oil is seeping past an burning in the exhaust (I take it you park on a hill like I do?) The oil light is due to the pressure being low, because of oil seeping past the valve seals. I’ve been driving it this way for the past year and it still runs good despite the oil leak. I’ll get someone to do it and do it right at some point. If you do yours and feel up to doing it again after the learning curve, feel free to drive an hour south to Knoxville and help a fellow mudder out ;)
 

flintknapper

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Joined
May 22, 2004
Messages
7,773
Location
Deep East Texas
 
 
 
I have a 94 doing the exact same thing. I go through about 2 quarts between changes and when I’m parked on a hill, it smokes like crazy. Also like you, I’m not a skilled mechanic. From what I’ve read and been told (take it for what it’s worth), the valve stem seals are shot, and oil is seeping past an burning in the exhaust (I take it you park on a hill like I do?) The oil light is due to the pressure being low, because of oil seeping past the valve seals. I’ve been driving it this way for the past year and it still runs good despite the oil leak. I’ll get someone to do it and do it right at some point. If you do yours and feel up to doing it again after the learning curve, feel free to drive an hour south to Knoxville and help a fellow mudder out ;)
Correct about the oil getting past the valve stem seals, both when driving and later when parked (engine off). However, the 'light on the dash' is from the oil LEVEL sensor (low oil) and not the pressure. Just want to clear that up.
 

brettk

SILVER Star
Joined
Apr 6, 2020
Messages
55
Location
Knoxville, TN
Correct about the oil getting past the valve stem seals, both when driving and later when parked (engine off). However, the 'light on the dash' is from the oil LEVEL sensor (low oil) and not the pressure. Just want to clear that up.
Thanks for clarifying, mine must be dirty then. Even if it’s full of oil, it still comes on and off occasionally.
 
Joined
Nov 18, 2008
Messages
551
Location
North GA mtns
 
 
My valve seals were leaking badly, to the point that I thought I had a hg peak. My engine seemed to have hydro locked and I broke a timing chain. After pulling the head, I had no signs of a hg leak, no coolant signs. Just a broken chain amd missing crank gear teeth. I replaced the timing set and hg and after reassembly, it started right up and runs with no smoke and better than ever.
 

flintknapper

SILVER Star
Joined
May 22, 2004
Messages
7,773
Location
Deep East Texas
 
 
 
Thanks for clarifying, mine must be dirty then. Even if it’s full of oil, it still comes on and off occasionally.
Mine did that as well. I removed it...cleaned it up real well and installed a new gasket. Replaced the connector while I was down there. No more 'false' low oil light. Of course....you always want to use the Dip Stick to verify oil level anyway (I'm sure you know).

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