Embarrassing question

[matt167]

Engine won’t even run with 50 PSI. Cylinders die around 75-80 psi where they fail to light up… that kit will work and there is a good chance it may be okay

 

[909]

Before and after of one of my non-runners.

Top : 80 PSI non running

Bottom : 137 PSI fixed & runs like a champ.

 

[tpenfield]

Yup, that's a leak-down tester. You can tell by the twin gauges. Still useful, but for leak-down testing, which is not often done.

 

[jimmbo]

Yup, that's a leak-down tester. You can tell by the twin gauges. Still useful, but for leak-down testing, which is not often done.

What 'Twin Gauges'?

 

[tpenfield]

What 'Twin Gauges'?

What the OP posted . . .
https://www.amazon.com/dp/B07W9FXKTF?psc=1&ref=ppx_yo2ov_dt_b_product_details

 

[jimmbo]

What the OP posted . . .
https://www.amazon.com/dp/B07W9FXKTF?psc=1&ref=ppx_yo2ov_dt_b_product_details

Oh, okay, I just saw two pics of the same gauge, and I thought Wednesday/Thursday/Friday...

 

[jefsummers]

Top starboard 120psi, other 3 all 115 psi. So, compression seems ok?

 

[Scott Danforth]

Buy a lottery ticket