briggs 6 hp Quantum valve specs


Old 07-15-08, 04:57 AM
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briggs 6 hp Quantum valve specs

I have a briggs Quantum and need to know the valve clearance specs are :? and why the top ( intake i think ) valve would have a clearance of 1/4 inch between the valve and the lifter . and its the original valve i think its the same leignth as the other valve . I got the mower in for repair ? wall:
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Old 07-16-08, 01:10 AM
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Engine model#?

The excessive clearance could be because of a stuck valve, bent push rod, something stuck under the valve face, rocker arm stud backed out, etc...
Old 07-16-08, 05:23 AM
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valve clearance

valve seat is in place ,valve moves freely and closes fully , is not bent . its not a over head valve motor and the lifters are solid lifters the top lifter may go back firther into motor . but the valve still opens a little with the 1/4 large gap. the motor had low to no compression . thats why i asked the specs of it , well it going to meet a air gun soon and i will inspect the cam inside after i look up the specks. i thought that it was something new for compression releaf . its got to be something with the timing gear and cam lobs.

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