Briggs 5 HP Rebuild

[EagleTalons]

I'm rebuilding my briggs and was wondering if this valve still good?

Seems to be missing some of its retainer metal on the back...

 

[brendonv]

Mmm it seems a lil short at the end there. When the valve goes down after letting in fuel does it stay in contact with the lifter? If it does then its fine.

 

[EagleTalons]

This is the exhaust valve. I'll check tomorrow.

 

[brendonv]

k, well its very rare that u need to change valves. Even bend valves can be fixed in a vice.

 

[jr dragster T]

I would never ever bend back valves in a vice. Just a accident waiting to happen. This is what a new valve looks like. Should have a nice crisp ledge. You decide.

 

[brendonv]

I would never ever bend back valves in a vice. Just a accident waiting to happen.

Well ive never done it but davids farm says it works well haha.

 

[jr dragster T]

Yeah it works but I dont suggest it. When a valve bends its not from normal use. Theres a root cause to valve failure that must be repaired.

 

[oscaryu1]

Well supposedly it would work, but theoretically if it still wasn't completely straightened, wouldn't it put stress on the block (friction)?

 

[jr dragster T]

Well supposedly it would work, but theoretically if it still wasn't completely straightened, wouldn't it put stress on the block (friction)?

Yes, If the valve face does not come down straight on the seat and gets sideloaded it puts extreme stress on the valve guides.

 

[EagleTalons]

Oh wow, I'ma get a new exhaust valve. I was wondering about that.

 

[EagleTalons]

Now, what are the bolt torque specs for all the bolts and the ring clearances?