For me the true risk is breaking something I lay hands on, like stubborn fasteners or frayed cables. The other stuff doesn’t scare me. Stephen Mobile > On Feb 11, 2022, at 1:01 PM, Alex MeVay <alex@mevay.org> wrote: > > Is there any risk of collateral damage when doing a valve clearance > adjustment on an engine that is decades overdue? > > > Long version: > > GF's parents are the original owner of a 1985 Land Cruiser, which they > graciously let us use when we visit. Car lacks power and they don't > really take it on the highway anymore. A quick google showed that > this engine has adjustable valves. They don't remember ever having > the valves adjusted. I also noticed the brake boost is noticeably > lower at idle, which I guess is a sign of weak vacuum from the intake > valves not closing fully. Their local mechanic recently $oaked them > for new brakes because ZOMG SAFETY, didn't bother addressing a > destroyed sway bar end link which is visible right from the street, > and claims a valve adjustment needs special tools. From a little > internet reading the "special tools" are a 14mm wrench, $6 feeler > gauge, and a flathead screwdriver. > > Anyway, I'm interested in doing this work next time I'm there, but > since no good deed goes unpunished, and there is an obvious social > component here, is there any risk that doing the valve clearance on an > engine that's been so sorely neglected would cause stresses resulting > in other damage (broken valves, etc.)? > > Thanks as always, > > Alex |
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