60 psi per cylinder 66/rude

[joemamma_222]

Dont have the model number handy but 60 psi per cylinder cold ? Just wondering if I might be in the ballpark on compression ? Or should I use a special compression tester ? Each of the 4 cyl have the exact same compression. Should I take all the plugs out before testing ? I'll try her warm once I get her in the water...<br />Thanks O/B people !<br />Joe From Ohio...

 

[daveolson]

Re: 60 psi per cylinder 66/rude

60 lbs is on the low side but that is not as important as even compression between all the cylinders there should be no more than 5 lbs difference between cylinders or it is impossible to tune engine properly. low compression just means a little less power and pooer starting but will run fine