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Re: Update: Sputtering diagnosis w/vacuum gauge
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Posted by Gordom in IN on January 14, 2005 at 08:37:48 from (66.244.71.237):
In Reply to: Update: Sputtering diagnosis w/vacuum gauge posted by rasputen on January 13, 2005 at 16:09:27:
The same problem can be caused by a small air leak at the carborator mounting flange and/or a small air leak at the intake manifold joint gacket. An air leak around a very worn carborator throttle shaft can also cause this. It might be a good idea to check for these leaks first. They are a "cheap fix" and easy to do compared to replacing valve guides that may not really need to be replaced and then you still have to fix the air leak/s anyway to make it run right. To do a complete rebuild just to fix this problem may be way over done and cost a lot. Have you done a compression check? If it has good compression on all cylinders, why do an overhaul? Does it use a LOT of oil? If not, why do an overhaul? Will it pull a load at full throttle? If it will, do you need an overhaul? If you must replace the valve guides you should be able to do that without "splitting the tractor". An overhaul is a lot more work and involves "splitting the tractor" to "do it right". (Grind crankshaft, check and repair or replace camshaft, clutch, etc.) I have seen some very worn engines that run quite well and give good service for years if the "littls problems" are taken care of. Good luck, Gordon
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