Biggvs_Richardvs
Cadet
- Joined
- Sep 3, 2017
- Messages
- 12
Hi all,
I'll hang around and help others to the best of my ability if you can clue me in on what might be wrong with my engine/drive.
Boat in canada at Dad's, me in US. Put new crate engine from Summit racing in back in 2019, broke it in properly, only about 50 hours on engine. Then covid hits, boat is outside for 2 years while I can't get to Canada, Dad is 89 years old and health issues, can't ask him to help. Covered engine etc as best we could but still got corrosion - we live next to ocean in BC.
Tried to start last year, got terrible "PANG!" sound under valve cover. Intake valve on #3 cyl rust welded shut. Rocker arm post got knocked out pushrod bent, etc. Unable to get up after that due to work, sat until last month. Pulled engine, figured out about valve, Tapped out post and added threaded post. Fixed valve, new head gasket, etc. All back together, properly(I think) pre-load rocker arms/pushrods, everything back in boat.
Start it up, purrs like a kitten above ~1100 rpm, nasty thumping sound in engine (I think) below 1100, almost like a missing rod bearing or something.
My next move is to pull the outdrive and start it up and see if sound is still there.
Any ideas on what it could be greatly appreciated before I go ahead and pull the engine out again.
Thank you,
Rich
I'll hang around and help others to the best of my ability if you can clue me in on what might be wrong with my engine/drive.
Boat in canada at Dad's, me in US. Put new crate engine from Summit racing in back in 2019, broke it in properly, only about 50 hours on engine. Then covid hits, boat is outside for 2 years while I can't get to Canada, Dad is 89 years old and health issues, can't ask him to help. Covered engine etc as best we could but still got corrosion - we live next to ocean in BC.
Tried to start last year, got terrible "PANG!" sound under valve cover. Intake valve on #3 cyl rust welded shut. Rocker arm post got knocked out pushrod bent, etc. Unable to get up after that due to work, sat until last month. Pulled engine, figured out about valve, Tapped out post and added threaded post. Fixed valve, new head gasket, etc. All back together, properly(I think) pre-load rocker arms/pushrods, everything back in boat.
Start it up, purrs like a kitten above ~1100 rpm, nasty thumping sound in engine (I think) below 1100, almost like a missing rod bearing or something.
My next move is to pull the outdrive and start it up and see if sound is still there.
Any ideas on what it could be greatly appreciated before I go ahead and pull the engine out again.
Thank you,
Rich