470 compression

[hadaveha]

Can you check the compression on a 1984 mercruiser 470. With the exhaust manifold removed, and if you can what numbers should I be looking for

 

[Bondo]

Ayuh,.... The manifold don't matter,.....

150 psi, 'n above is a healthy motor,....

Below 150 psi, the motor is at varyin' degrees of gettin' Tired,.....

At 100 psi, it's no longer a runnin' motor, but a rebuildable core motor,....

 

[Eric 3.7LX Alpha 1]

What he said ^^^

 

[hadaveha]

Great thank you guys