77 888 merc, low commpression, 60 to 70 lbs. is it the synthetic blend oil i used?

[treehugger165]

No message...

 

[boat127]

Re: 77 888 merc, low commpression, 60 to 70 lbs. is it the synthetic blend oil i used

need some details.....
was the compresson test done cold and warm
when did you change to synthetic oil
reason for doing a compression test

 

[treehugger165]

Re: 77 888 merc, low commpression, 60 to 70 lbs. is it the synthetic blend oil i used

To my knowledge the engine has never run, so I inherited it. I got spark and a clean fuel source. The firing order may be an issue and then I did a dry compression test and got those number's. Their may be other issues but I need to rule out that low compression. There was old gas had seeped into the oil, so when i did an oil change i found some synthic blend on the clearence isle so i put it in. Thanks for the help....

 

[Don S]

Re: 77 888 merc, low commpression, 60 to 70 lbs. is it the synthetic blend oil i used

What's with the "No Message" in your original post?????????

If the engine hasn't run for some time, the compression numbers are worthless. Get it running, at least for a minute or two to get things loosened up and moving again.

 

[treehugger165]

Re: 77 888 merc, low commpression, 60 to 70 lbs. is it the synthetic blend oil i used

on other forums, if u ask the complete question in the subject bar, u put (NM) behind it too indicate that there is no more in body of the post. I failed to do that, oops..