"When you mentioned ethanol/fi
"When you mentioned ethanol/fiberglass tanks, I checked your profile and as I expected you have a Bert 25.
Since this boat came with MERC 165 inline 6 cylinder, I question if the drive reduction ratio is correct... Inline 6s, I believe have higher torque than the V6s and may require a different ratio. The first hint on this is that the V6 MAX WOT is higher than the inline 6 RPMs as I recall... (I may be wrong..)
My BIG question how did the V6s fit... When I owned a Bert25, I looked into the V6s and it appeared as if they would not fit side to side ???
The other issue...ethanol and your tanks. I've seen posts on other forums ( Bertram related), that when the ethanol attacks the Bert gas tanks, the resin dissolves in the gas and get deposited inside the combustion chambers with drastic results.
BTW...Congratulation on owning one of the best small boats ever made. I lost mine in a divorce in 1994 and to this day, every time I see one, I get a tringe."
1969 23ft ChrisCraft Lancer
Merc 5.7L 260HP/ Volvo 280
1972 22ft Bristol
Honda 7.5HP 4 stroke Long shaft