cylinders don't match

5

55'Fleetwin7.5

Petty Officer 1st Class
Joined
May 29, 2007
Messages
241
My 1955 7.5 flrrtwin measures 80 lbs. in the bottom cylinder and 75lbs. in the top. Is this a problem? What needs to be done if anything?
 
R

R.Johnson

Rear Admiral
Joined
Sep 24, 2003
Messages
4,446
Re: cylinders don't match

Nothing! that is about normal. My guage would read a #100. my friend's would be about #65, and on, and on.
 
5

55'Fleetwin7.5

Petty Officer 1st Class
Joined
May 29, 2007
Messages
241
Re: cylinders don't match

So the disparity from top to bottom of 5lbs. is no problem?
 
5

55'Fleetwin7.5

Petty Officer 1st Class
Joined
May 29, 2007
Messages
241
Re: cylinders don't match

Does throttle position matter when measurment is taken? It does not seem to change the numbers... The motor runs pretty well... From a power perspective I'm not sure what I should be expecting... I have a 12' aluminum shallow vee and three middle schoolers and I can still make way with all our junk... Thats all I wanted anyway.
 
tashasdaddy

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: cylinders don't match

go to the engine faq forum Decarb
 
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