Hi Thomas,
Replacing valve seats is a job for the machine shop..even if you already
have inserts. Don't even think about it. You might be able to replace the
valves IF the seats are in really good condition. You would want to lap the
valves to the seat with valve grinding paste. Take it from someone who
used to have time to dabble, just take it all to the shop and you will be
much happier. Have them make sure the heads not warped or cracked
while they're at it.
There are several sealers specifically for head gaskets. You could use one
of them. I usually use chassis lube (grease). I wouldn't put it together dry.
I don't usually replace the studs unless they are damaged, bent or look
stretched (usually on one of the threaded ends). The stretching is from over
tightening and is usually on the upper end.
Hope this helps
John----------
From: Thomas James Pokrefke, III[SMTP:pokrefke@ocean.st.usm.edu]
Sent: Sunday, August 03, 1997 10:05 AM
To: mgs@autox.team.net
Subject: MGB Head
I haven't gotten the cylinder head off yet, so I don;t know if I have
any valve seat recession. If so, I am considering replacing the seats
and valves myself. This head in particular has only been on for about
12 months.
A couple of questions:
1. How difficult will it be to do the seats myself?
2. Cylinder head gasket: put it on dry or with sealant (Permatex Copper
Spray-A-Gasket is what I have used in the past)
3. It's also probably time for new cylinder head studs. Do they stretch
over time? I have never replaced mine and I doubt that any of the PO's
did. I know, don't torque them into the head...
TIA
Thomas James Pokrefke, III
1970 MGB
pokrefke@ocean.st.usm.edu
http://ocean.st.usm.edu/~pokrefke
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