Home › Forum › Ask A Member › Uncertainty regarding Sierra Gear Case Seal Kit › Reply To: Uncertainty regarding Sierra Gear Case Seal Kit
Fleetwin, thank you for your input here. There were not any instructions, that is unfortunate. I have utilized the Sierra carb. kits frequently, they have many, many extra parts included. You make a great point about the potential for slight differences between items in the bag. Just ordered the individual OMC labeled parts from MarineEngine.com. Will compare these to the Sierra counterparts, go from there. I have several more of these later underwater units to reseal, want to have my ducks in a row moving forward. The underwater unit on this 1972 Fastwin is the first one I have done. They are not as easy to work on as the videos on Youtube would have one believe. For example, those old seals did not just pop out for me.
Steve
You are sooo right buddy. I laugh when folks say working on these split gearcases is simple… Like you say, try to get those seals out of those delicate aluminum housings without breaking/gouging the aluminum! Oftentimes there are minor differences in pieces used on certain gearcase families throughout the years of production. Have fun cleaning that dried up type M sealer out of the groove in the skeg. You really have to take your time and make sure you have all the right pieces that fit properly before reassembly. It is not so easy to seal one of these units up properly as well. Pressure testing is an absolute must.
Imagine getting the thing all sealed up, pressure testing and finding a leak… Not only must you pull the gearcase apart again, but the gaskets and gearcase head oring must be replaced again also. And, you get to spend all that time removing all the type M sealer you just applied….
Sure, most anyone can probably get one of these apart reassembled and working again… But sealed up properly, that is doubtful…