Hi Dave,

Don't make the mistake I made with the .061 conversion! Be sure your .074 is broke in on glow fuel before you run it on diesel.

I bought the .061 on eBay, and was told it was used, but it turns out it was probably new. It had a healthy pinch at TDC, so I just assumed it was tight from too little running time.

When I ran it on the NV head first, it never got up to proper break-in temperature, and apparently wore rapidly on only a few tanks of diesel fuel. All pinch was gone by then, and it ran poorly on diesel.

Put the glow head back on, and then noticed compression was very low. Finally had to install a new piston/cylinder, but have not had a chance to run it since.

Bill