Al
Guru
- Joined
- Apr 1, 2012
- Messages
- 2,206
- Location
- usa
- Vessel Name
- 'SLO'~BELLE
- Vessel Make
- 1978 Marben-27' Flybridge Trawler(extended to 30 feet) Pilothouse Pocket Cruiser[
Okay Forum members, now a serious inquiry. Our engine is a Perkins 4-154 of around 1986 vintage. As per the history of these engines, the rear oil seal is leaking and increasingly so, as well, the Velvet drive reduction gear is losing oil into the bell housing and into the drip pan beneath the engine.
I have purchased the more exotic Teflon rear seal (two pieces) and the output shaft seal for the reduction gear. I have my wrench man on schedule to do the actual operation.
Okay then, What is there to expect? The shaft will be disconnected and slid back in place, the reduction gear will be lifted out, a scissor hydraulic jack will be employed to (1) hold the engine in place with the gear out and (2) raise the engine to gain more access to the rear of the engine.
Question: The bell housing comes off? The flywheel comes off? The seal is separate from the Crankshaft, meaning that the oil pan will not be required to be removed?
I am aware from reading elsewhere, that the seals themselves have to be allowed to extend above the cap by 1 inch after the seals have been put in place.
Any history or knowledge on the issue is truly welcome.
Al
I have purchased the more exotic Teflon rear seal (two pieces) and the output shaft seal for the reduction gear. I have my wrench man on schedule to do the actual operation.
Okay then, What is there to expect? The shaft will be disconnected and slid back in place, the reduction gear will be lifted out, a scissor hydraulic jack will be employed to (1) hold the engine in place with the gear out and (2) raise the engine to gain more access to the rear of the engine.
Question: The bell housing comes off? The flywheel comes off? The seal is separate from the Crankshaft, meaning that the oil pan will not be required to be removed?
I am aware from reading elsewhere, that the seals themselves have to be allowed to extend above the cap by 1 inch after the seals have been put in place.
Any history or knowledge on the issue is truly welcome.
Al