Subject: Chrome bore help needed. I think (hope) mine is good
Author: richard zink
Date: Feb 4, 2001, 12:37 AM
Post ID: 1705264314
Loopers, Took the Ambo out for a nice 50 mile loop today. Cooked dinner
for my wife and daughter and since I was such a good cook :-)
I got to go to the garage for a couple of hours. So I pulled both the intake
and exhaust manifolds, the oil line, rockers, head bolts, and pulled the
heads and cylinders off the left side. So I find no wear on the rockers or
pins, the heads have minimum carbon buildup, the pistons are only a little
crusty on top (already scraped clean) and the cylinders look as nice as the
Nikasil ones on my Cagiva. This is to say I can see no flaking, pitting or
feel any ridges from wear. Sure the bore where the rings don't make contact
are a bit duller than the rest but my fingernail can detect no ridge. And all
of the O-rings fell apart as soon as I touched them (already covered as I
acquired all of the gaskets and such before starting). This is on a '71 Ambo
with 46K, that the second owner (who owned it 17 years) reported only having
the pushrods replaced due to one breaking, on the top end. So someone in the
know of the vastly reported problem with the chrome bore flaking and/or
wearing out please enlighten me or give me the signs I should be looking for.
How many miles do ones with good care and don't sit a long time go? She does
not smoke except for when the choke is on and compression test runs about 160
psi with my 20 year old gauge. I feel like a happy camper but don't want to
get too optimistic. Now if I only felt this good about the clutch but will
report on that when I get the time to pull the tranny.
Any first hand knowledge, reports, wisdom, BS or encouragement will be
appreciated.
Rich