I would do a serious engine analysis and get the compression numbers and run a
leak-down test. See where you stand. If you have solid numbers, you might see
a little more life out of it. I'm in the process of "refreshing" my engine and
the head work is the brunt of the expense. My exhaust valves were buried in
the head pretty bad. Not sure how long you can run without risking long term
damage. You might find a quick fix out on ebay. Old Grey Norm seems to post
some pretty decent ones every now and then. They go for around $60-$80 bucks.
To: spridgets@autox.team.net
Sent: Monday, July 6, 2009 6:54:32 PM
Subject: [Spridgets] engine questions...
i am driving a stock 1275 '74. on the highway i am concerned to push past 4k
rpm's for any length of time. I also have a minor oil burn that i attribute to
valve guides and recessed core plugs in the head. At some point i will
"refresh" the engine not that i know what the hell that actually means but it
sounds good. what if anything can be done to improve highway speeds without
going to a 3+k 5 speed. i think I am doing about 70 at 4k rpm's i just want to
do 80mph for highway driving especially considering MG2009 in toronto and the
midget 50th in wisconsin.
thanks
ryan
'74 midget
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