Subject: Valves & related fun, '71 Ambo
Author: Sean Flanagan
Date: Sep 12, 2003, 7:42 AM
Post ID: 1714496416
Hello all and TGIF-
In the recent past I've made some inquiries here and received piles of help
for getting my '71 Ambo back in running order. Thanks again for all of the
assistance so far! It's been fun & educational, to say the least.
After getting the timing nailed down last night, I took her for her longest
run yet, a few miles down the road & back. Doesn't run well, but she
runs! Back in the garage, I noticed that the right cylinder cover was hot,
but touchable, the left cylinder cover was sizzle-your-skin hot!
So I thought, bad valve(s), letting hot combusted gasses in there and
generally cooking it. Also did a "workingman's leakdown test", kept the
plug in and turned the crankshaft via the bolt on the front. At TDC I
could definitely hear air coming out with a Pffft! sound, and I'm fairly
sure it was the intake side. But at this point I'm willing to do both
valves on that side.
Anyway, long story long, I want to replace the valves. This is the 1st
time I've ever done this, so I'm not sure what sort of tool I need to
compress the valve spring. And of course, your experiences & advice this
area would be greatly appreciated.
Thanks in advance
Sean in Flagstaff, AZ, USA