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#31
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I also had issue with sticking valves on my 169. I was able to determine it was the valves sticking as after it quit, I would try to restart and the engine would spin over very easy as the valve or valves were stuck open. After about 10 mins it would cool and then start again with proper compression. I tried the MMO and it has helped. I now add it to my gas when I fill up. One day I need to take the engine out and ream the valve guide and also remove the balance gears before they vent my block. So much to do, so little time.
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#32
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sticking valve
first pull the valve cover off ,and see if is sticking ,by lifting the spring ,and do check the clearance ,.017-.019
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#33
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I would also make sure that the timing is correct and it isn't running lean, as both of those will cause overheating, which can result in a sticky valve.
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#34
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sticking valve
a fella at our local shop says to take a spray bottle of water and squirt it lightly into the carb it will help with the carbon build up on the vavle
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owner of 1970 cc 106,model 72 |
#35
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That would help with carbon in the combustion chamber, but will do nothing for carbon on the valve stem.
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#36
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I haven't seen it posted here but using old, sour gasoline will cause the valves to stick too.
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#37
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Quote:
the manager and owner were furious at the store and were going to sue them. to dispose of the fuel was expensive $350 a car I had a old carburated1985 ram 50 PU that runs just fine on old gas i told the boss i would take the gas and use it they bought the barrels and payed me 2 hours a car to drain i used the steel tank gas buggy to transport home thats all i did for 10 days and used the 4 barrels of gas for 3-4 months. ... thought Id share |
#38
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Quote:
they are both running well still today.
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Cub Cadets & IH tractors 1811 - 1090 hours 1872 basket case, rebuilding. #1 tiller 1 Farmall regular |
#39
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works very good on steam cleaning pistons and bores before a planed rebuild
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