SilverStripeSS
Cadet
- Joined
- Jun 18, 2012
- Messages
- 7
Ok so here is what I have been dropped into my lap:
Originally this was my uncles boat: 73' Sleekcraft with a MerCruiser(not sure which model)
My uncle decided to buy a 351W HO SVO crate motor to put into it. It ran great 8 years ago, would do 55 mph on the water no problem. His health issues and various things the boat sat in a storage yard and raccoons ate through the cover and totally destroyed the interior of the boat. Was sold to my cousin and she replaced the whole interior and was having a hard time getting the 351 to run. While trying to get it back to running, she flat spotted the cam when a lifter stuck. The cam was replaced with a Crane Cam that was comparable. The carb was gone through and cleaned and new seals. A new fuel pump was installed. Motor was timed and in the driveway it revs up smooth and quick, sounds great. Well on the water it barely has any power and wont rev above 3k rpm. The only thing that has been changed with this motor since it did 55 mph was the cam and lifters, but Crane gave a comparable cam. Any Idea's? I have tried to play with the distributor out on the water with no success. its getting frustrating. I have called local shops and basically tell me since it's an aftermarket motor they cant and basically aren't willing to help. I will try to post the crate motor sheet and the cam that was replaced in it. I am a Chevy guy and more of a LSX motor/new school tuning with a laptop kind of experience. So this is all new.
Originally this was my uncles boat: 73' Sleekcraft with a MerCruiser(not sure which model)
My uncle decided to buy a 351W HO SVO crate motor to put into it. It ran great 8 years ago, would do 55 mph on the water no problem. His health issues and various things the boat sat in a storage yard and raccoons ate through the cover and totally destroyed the interior of the boat. Was sold to my cousin and she replaced the whole interior and was having a hard time getting the 351 to run. While trying to get it back to running, she flat spotted the cam when a lifter stuck. The cam was replaced with a Crane Cam that was comparable. The carb was gone through and cleaned and new seals. A new fuel pump was installed. Motor was timed and in the driveway it revs up smooth and quick, sounds great. Well on the water it barely has any power and wont rev above 3k rpm. The only thing that has been changed with this motor since it did 55 mph was the cam and lifters, but Crane gave a comparable cam. Any Idea's? I have tried to play with the distributor out on the water with no success. its getting frustrating. I have called local shops and basically tell me since it's an aftermarket motor they cant and basically aren't willing to help. I will try to post the crate motor sheet and the cam that was replaced in it. I am a Chevy guy and more of a LSX motor/new school tuning with a laptop kind of experience. So this is all new.