Compression test

[JaguarMan]

Have a 97 Mercruiser 5.7 LX 4bbl with a Bravo 1. Have a misfire and was wondering if a compression test can be done with the exhaust manifolds and riser removed? Would sure make life easy.

 

[Bondo]

Ayuh,.... Welcome Aboard,... The compression test can be done, With, or without the manifolds mounted,....

 

[JaguarMan]

Thanks that is what I thought but did not want to do it first and get false readings.

 

[Volphin]

Take a good look at your spark plugs if you have a misfire situation. Their condition can tell you a great deal.

 

[JaguarMan]

I hit a lobster pot buoy and wrapped the rope around around the prop. The engine shut off. When restarted it was running rough and could not get on plane.