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bought used and abused no history. started it with fresh gas and oil smoking alot mostly from rigth bank .oil turned black almost instantly added marvel and oil ran it changed it again oil not turning black yet . removed heads cleaned carbon from valvas and seats and piston top. rebuilt fuel pump and carb. changed plugs. engine pop s once and a while valvaes sticking ?how do you free them up /. or is valve job needed?how many special tools required? forgot to mention it was puffing blue smoke from right bank but after cleaning valves it stopped. any sujestions ? p.s. put lead additive in fuel and marvel mystery in gas and oil . its primary use will be grass cutting on rolling terain about an acre. thanks will e fix it ?
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A valve job wouldn't hurt, but I can't recall doing very many valve jobs on those engines.
I believe your engine is actually a 14 HP engine block with the governor speed set up a couple of hundred RMP.
Is the pop continous or just seem to be random?
Are both plug the same color?
Let me know. pop is random and getting better. plugs are black. thanks willefixit
Eric
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Is the pop getting better?
Does the carburetor have a fixed high speed jet? Most do.
Let me know.
Eric think it got it fixed . fixed jet carb also seems to run ok now with air cleaner on idle mix is only adj. thanks for the in put !! I'm think I'm going to lap the valves got some compound and a vavle suction cup spinner /valve laping tool. thank for the input . john anas willefixit
AnswerLapping works well. The manual tells you to cut the seats, but then you have to lap also.
Several of the shops I have worked at didn't have seat cutters...we just used corse and fine lapping compound.
Do you need the valve/tappet clearance?
Eric
