Hi Everyone.....I have 2 motors both 1976 85hp one is Evinrude one is Johnson....Almost identical...my guess is they were made on the same assembly line.
I got the Evinrude to fire and run but it stopped peeing shorty after so we shut down.....put the Johnson lower on..still no pee....disassembled both...Impeller looked worn but not too bad on both lowers....Replaced the impeller following the instructions in the manual to the T..... still no pee...replaced the Vernatherm...no pee....lightly pressurized the up tube with air...came out of each head so not thinking obstruction..... bought a new water pump kit replaced everything with new parts.....This time I took the lower and submerged in water....I put a rag around a socket and gently slipped it over the splines...I was able to rotate the shaft at a fairly rapid pace....NO water being pumped..installed and turned the engine without connecting fuel line....no water circulation( I removed the hoses to the heads so I could check) So I've tried 2 different lowers and still no pumping....They both sound like a straw with a hole in it when your drinking a soda...kind of sucking air...As I spin the drive shaft....is the an inherent issues with these lowers? I'm stumped
I got the Evinrude to fire and run but it stopped peeing shorty after so we shut down.....put the Johnson lower on..still no pee....disassembled both...Impeller looked worn but not too bad on both lowers....Replaced the impeller following the instructions in the manual to the T..... still no pee...replaced the Vernatherm...no pee....lightly pressurized the up tube with air...came out of each head so not thinking obstruction..... bought a new water pump kit replaced everything with new parts.....This time I took the lower and submerged in water....I put a rag around a socket and gently slipped it over the splines...I was able to rotate the shaft at a fairly rapid pace....NO water being pumped..installed and turned the engine without connecting fuel line....no water circulation( I removed the hoses to the heads so I could check) So I've tried 2 different lowers and still no pumping....They both sound like a straw with a hole in it when your drinking a soda...kind of sucking air...As I spin the drive shaft....is the an inherent issues with these lowers? I'm stumped
thanks for the advice.......I am a bit concerned...what happens when i get up on plane...if there is an issue in the lower... wont I start sucking air again?