90 PSI BUT RUNS AMAZING

[lanceblaster69]

My blaster has 90 psi of compression but starts first kick every time and runs and idles perfect. 90 psi is way too low for a blaster. Can my Tester be bad? Or should I just rebuild it? When I got it it supposedly had a brand new cylinder which it looked as so but I’m not sure about piston and rings

 

[79 bronco]

Yes your tester could be bad! I rebuilt a motor because of a bad tester. After I rebuilt the motor and finished the brake in I did a compression test again and almost craped myself when I had low compression again. Then I realised I had a bad tester.

 

[79 bronco]

I have a tester like this now. When I use that adapter thing it gives me a different and lower number.

 

[lanceblaster69]

I have a tester like this now. When I use that adapter thing it gives me a different and lower number.View attachment 33998

Yes I use the same one.