Hughjohnson
Seaman
- Joined
- Jul 16, 2011
- Messages
- 53
Exhaust note had changed to more of a bark as if it was leaking near the cylinders but I cannot see anything. Idle is much much slower and uncertain at low revs.
Speed of boat is down from 6.4 knots to 5.2 knots therefore there is less power.
Compression seems the same on both cylinder when I pull starter.
I checked plugs . top cyl is good with nice dry no carbon in the centre and the bottom cyl is blacker and slightly oily bot not as bad as I have often seen before. I changed the plugs but no change.
I stripped the engine last year and ran for 100 to 150 yours and it was good as it was for about 50 hours this year until the chage took place.
Hope someone can help. Hugh
Speed of boat is down from 6.4 knots to 5.2 knots therefore there is less power.
Compression seems the same on both cylinder when I pull starter.
I checked plugs . top cyl is good with nice dry no carbon in the centre and the bottom cyl is blacker and slightly oily bot not as bad as I have often seen before. I changed the plugs but no change.
I stripped the engine last year and ran for 100 to 150 yours and it was good as it was for about 50 hours this year until the chage took place.
Hope someone can help. Hugh