Subject: Re: Coil didnt fail
Author: Ian Adkins
Date: Jun 18, 2000, 7:59 PM
Post ID: 1701065228
Thanks Cookie,
Well explained...makes sense and I am much wiser now :-)
Also, good point on the torque values not being readable once the nut was
set. The old physics thing about static vs dynamic coefficient of friction I
suppose. I was aware of that fact and I was referring to checking the rocker
clearances when I referred to checking "them" in my earlier post.
I just helped a friend replace his head gaskets a few days ago. One thing I
can say about these bikes.....it sure is easy to work on them. It only took
us 2 hours to change the gaskets....and that time included alot of looking,
talking...and sipping on a couple of beers :-)
I sure do like these machines!
Ian
| As the gasket compresses the head to barrel distance gets smaller. The pushrods however stay the same length & push their end of the rocker up a bit more, the other end of the rocker arm goes down closing the gap with |
| end of the valve. I have rebuilt an engine, set the valve clearances, driven round the block |
| got misfires & no idle from a valve being held open. Dave Otis's torque methods he posted a while back may seem excessive, but |
| thoroughly recommend them as essential. By the way, you'll never be able to tell what torque a bolt is presently |
| at by applying a torque wrench & seeing what it is set to when the nut moves. It will almost certainly take more torque than the nut was |
| set to, to get it moving. Sorry. If however anyone knows how to determine a nuts torque once set it would be very useful. I could certainly use the knowledge. cookie |