[AT] OT- Briggs and Stratton valve clearance, IT RUNS
k7jdj at aol.com
k7jdj at aol.com
Sat Jun 25 21:01:39 PDT 2016
Thank you again for all the comments and advise.
IT RUNS!!
I didn't think it would run. After a closer look at the intake valve issue I believe that when the engine was in basic runaway mode some damage occurred either with the cam follower or the camshaft. What I observed when turning the engine over and watching the intake valve was that the valve continued to remain slightly open until about 3/4 of the way to top dead center. I had already removed a fair amount of stem to obtain the 5-7 thousands clearance. I went ahead and ground some more off the valve (about .010 clearance) to try and get it to close sooner. I wasn't able to get much improvement but put it back together. It still would not show any compression. After all was together gave it a shot of starting fluid and it took off.
I believe some galling occurred on the cam or follower and that has changed the lift/valve clearance. I didn't want to open the case to investigate as I needed to get it running. If it hadn't worked I was going to get a Harbor Freight cheap replacement.
I have run the compactor about an hour and it seems as good as it was before it failed. At some point if what ever is wrong with the cam/follower wears off, it will have way to much intake valve clearance and will need to be replaced.
Gary
Renton, WA
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