One cylinder has low reading...

lonewolf7396 · #1 03-03-2005, 06:34 PM

Four_Boat_Theory
I would try using decarb,you may get lucky and have sticky rings on no# 1 cylinder,hay you have nothing to loose except $5.00 buck for a can of this stuff,also let it sit overnight and then recheck the compression on the cylinder

ocuyler · #2 03-03-2005, 08:10 PM

Gentlemen,

Thank you for you kind and prompt replies. I have terrific news! I spoke with the Merc mechanic (instead of the service manager)to follow-up on the approaches you-all have mentioned. I got a different story!

Cylinders 2,3 & 4 were 125 PSI, #1 was not 25, but 25 LESS THAN THE OTHERS. That's way different. So, we're back on track and every other thing checks out. Lower unit checks out, New plugs, impeller and good to go.

The only bummer is that they could not get the prop off. They quoted me 1 to 2 hours labor to "hack" it off. I think a file job will have to do. Hilton Head, here we come.

Thanks for your support.

SEAFARI · #3 03-03-2005, 09:11 PM

Lonewolf is correct, a overnight decarb can
bring compression back to life. I've seen it
happen on a few motors.

Rodney

Finster · #4 03-03-2005, 09:16 PM

Ringfree too is exellent. Give it the shock treatment. You'd be supprised how well it works.

I recommend doing it on a windy day. [img]/images/graemlins/wink.gif[/img]

RS · #5 03-04-2005, 07:42 AM

Quote:

Gentlemen,
The only bummer is that they could not get the prop off. They quoted me 1 to 2 hours labor to "hack" it off.

How about a wheel puller? Just drill holes in the prop body where needed. You can possibly repair the holes as well.

FELLOW-SHIP · #6 03-04-2005, 08:59 AM

I used a wheel puller from Sears once to get a prop off, I rapped a chain around the prop in front of the blades and stuffed some wood in arrears that could get damaged by the chain hitting the blades shot the shaft with liquid ranch and off it came.
FellowShip [img]/images/graemlins/grin.gif[/img]

ocuyler · #7 03-04-2005, 09:26 AM

Thanks for the prop pulling suggestions. I'll try them. Can always resort to the chainsaw...

SnoFoolin · #8 03-05-2005, 10:01 PM

prop puller + transmission fluid soaked on shaft + plus a few taps with ahmmer on prop nut - works wonder most of the time- chainsaw a bad idea- everytime you swing it you bend the blade.