70 hp Johnson compression

5

53150

Cadet
Joined
May 2, 2003
Messages
28
I did a compression check on my 1980 johnson 70hp. The top two cylinders read 130# and number three read 125#. I pulled the head off too inspect the cylinders, and number one and two have some mild scoring(just enough to catch my finger nail). Do I need to correct this situation now or wait until boating season is over. The main reason I'm asking is because the compression seemed to be good. <br /><br /> Thanks for the advice<br /> Will Vaughan
 
H

Hooty

Rear Admiral
Joined
Oct 2, 2001
Messages
4,496
Re: 70 hp Johnson compression

The compression is good, Will. I'd button it up and maybe check it again next year. Meantime, run it like ya stole it.<br /><br />c/6<br /><br />Hooty
 
OBJ

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: 70 hp Johnson compression

I wuz about ta post nearly the same thing untill something popped up here at tha house...namely the cat that's been gone fer a week and a half.<br /><br />Shoot Will, with that kind of compression, I wouldn't have given it a second thought. Cylinders running 5psi off aint bad. Maybe decarb it and run it, as Hootymeister says, like ya stole it.
 
5

53150

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Joined
May 2, 2003
Messages
28
Re: 70 hp Johnson compression

Thanks for the advice guys. Thats what I was hoping to hear!
 
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