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Compression 1996 200 OPro

H

huntsman23

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Tested compression on my 1996

Tested compression on my 1996 Rude o/Pro.

Port Bank 90 - 95 psi
Starb Bank 95 - 105psi

I know 10% difference is OK. Is there any reason why the Starb bank would read higher than the port.

Is this an acceptable range?
 
It is acceptable. Starboard ba

It is acceptable. Starboard bank always reads approximately 5 psi or so higher than the port bank.

I've asked factory reps about that in the past. THeir reply was that it's just the nature of the beast. Translation.... They didn't know either.
 
"Joe:
It has to do with the r

"Joe:
It has to do with the rotation of the cranckshaft.
On the counter engines where the powerhead rotated counter, it is the oposite."
 
"Thankyou gentlemen, your ans

"Thankyou gentlemen, your answers are always very helpful and much appreciated.

I live on the southeast Coast of Queensland Australia and our monsoonal weather of the early 80's has returned after a 20 year break making this summer the least boating freindly weather we've had in two decades. Plenty of time to look after all that preventative maintenance that usually takes backseat when the weather is freindly."
 
I have a 1990 Evinrude 200 V6

I have a 1990 Evinrude 200 V6 and the compression on all cylinders are 80. Is this in need of a rebuilt or is that the normal range for a V6.
 
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