I am learning how to adjust the valve space on a briggs and stratton 31C707 type 3346 G6 code 110510ZD
I saw two ways to prep the engine.
ONe was TDC and a 1/4" turn and then set the valves.
The second was to just compress one valve at a time set and then compress the other set and check.
If I do it the second way,but then double check using the first method, the gap is too tight by a shim thickness.
This would then seem to be too tight. Example. If I compress one valve at a time and work on the loose one, intake at .003", And then check it using the TDC 1/4" method, It is very hard to get the .003 feeler between the rocker and the valve when at that position.
Now if I set the clearance using first way but after setting check by taking off the pressure on just one of the valves. I have a feeler thickness difference looser. Example. I might set intake at .003" using the first method of TDC+ 1/4" and then check by rotating around to the exhaust is compressed, the feeler between the valve is .004"
I was just curious how I would know if I was too tight? What are the symptoms?
Also, for that engine, which is the best why to set it since they are not producing the same outcome by one feeler thickness. Is it better to have it a little looser than a little tighter?
Thanks
I saw two ways to prep the engine.
ONe was TDC and a 1/4" turn and then set the valves.
The second was to just compress one valve at a time set and then compress the other set and check.
If I do it the second way,but then double check using the first method, the gap is too tight by a shim thickness.
This would then seem to be too tight. Example. If I compress one valve at a time and work on the loose one, intake at .003", And then check it using the TDC 1/4" method, It is very hard to get the .003 feeler between the rocker and the valve when at that position.
Now if I set the clearance using first way but after setting check by taking off the pressure on just one of the valves. I have a feeler thickness difference looser. Example. I might set intake at .003" using the first method of TDC+ 1/4" and then check by rotating around to the exhaust is compressed, the feeler between the valve is .004"
I was just curious how I would know if I was too tight? What are the symptoms?
Also, for that engine, which is the best why to set it since they are not producing the same outcome by one feeler thickness. Is it better to have it a little looser than a little tighter?
Thanks