HELP COMPRESSION

[johnson1]

I am purchasing a 1972 Mercury Outboard 1150. I am having a boat shop test the compression for me. I was wondering what the numbers are supposed to be. I am assuming that there are 6 numbers total because it is an inline 6??<br /><br />Thanks for your help.

 

[Dhadley]

Re: HELP COMPRESSION

Yes. All six will be in pounds and should be no more than 15 lbs different from hi to low.<br /><br />Good luck!

 

[johnson1]

Re: HELP COMPRESSION

Thanks! SHould they be over 100 PSI each?.. Do you have average numbers. NEW to the outboard thing!