shims?? 're-new' and 'new valves'
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- Posts: 55
- Joined: Wed Dec 24, 2008 1:07 pm
shims?? 're-new' and 'new valves'
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Posted by: "Dooden" dooden@... Dooden
All that work is going to settle out fairly soon.. if running fine give it a
1000~2000 miles and at least check clearance.
5. new valves
Posted by: "Ian Francisco" ocpianoman@... ocpianoman
I was burned in a similar fashion . . . The only real way to know the valves
clearances are where you want them is to measure them yourself. . . You have
no way of knowing if the shop can't tell you. I'd ask to speak with the
mechanic, maybe he can tell you.
Dooden, Ian, and All . .
Thanks for the speedy answers and advice.
The entire situation is extremely strange.
What started as a simple tire change and loosening of the c/s nut wound up
as a several month odyssey and a complete {above the cases} engine & carb
rebuild !!
Since the carb came off first, the most obvious cause of the 'lack of power'
was found - a torn diaphragm. Rather then STOP and ADVISE they continued to
disassemble the engine. Without taking {or simply NOT RECORDING further
measurements . . . they specified 'BORING OUT the cylinder to 1st over-size,
and REPLACING the PISTON, RINGS, and {all four}VALVES. While I was waiting
for the boss to return from vacation so we could discuss options . . . they
went ahead and DID the work !!
Bottom line: I never authorized anything beyond 'check & report', the boss
agreed and all the work was GRATIS.
Now that I have the bike back, I intend to keep it for a LONG time! While I
know I have to 're-seat' the rings like a new bike, the valve {& shim} wear
pattern is unknown. {YES - I did ask SPECIFICALLY what the finished
measurements were - the only answer I could get was 'Within Spec'.
therefore - NO DATA POINT.
While I agree the 'money-is-no-object' answer is to disassemble the head
again & take measurements, that's NOT me!! Second 'recommendation' is do it
at 500 miles {+/-} - then AGAIN at about 2,000 miles. This isn't cheap,
especially if it's not necessary until the mileage builds up a bit more.
{bike is a 2003 and only has about 7,500 miles}
All I need is some 'real life' experiences with replacement valves, some
place to start. NOTE - the bike NEVER had ANY symptoms in the first place !!
Regards & Thanks,
Ron Magen
Backyard Boatshop
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