Crankcase check valve replaced.....

[PKN]

Thanks for the tutorial on this. It was not an easy job, mainly because of poor design. Had the valve been mounted closer to the engine room (and it easily could have been) or replaced with an in-line valve rather than one bolted to a metal fitting or even if it had used studs on the valve instead of threaded hole it would have been a 16 minute job instead of a three hour frustrating exercise. Here are a couple of tips if you plan to do this job - glue the gasket onto the pump and find somebody with small hands and a sense of direction to help you,

 

Oh well, it is done now and as expected, the old valve was jammed with teeth from the air injection impeller. While Mr Grumpy is at home, I will also criticize the fact that I cannot buy a plastic $20 impeller which is easily removable. I have to buy the whole motor/pump. Grrrrrrrr

PKN

Edited January 13, 2016 by PKN

[Vette Moto]

why did your air injection impeller break apart? Was it due to the deteriorating foam filter in the air injector?

[PKN]

The pump ate the foam filter which then destroyed the plastic vanes. Examination of the vanes found them to be quite brittle - either due to age or heat after the valve stuck and pumped exhaust gases through them

Steve