ciavola Posted July 3, 2010 Share Posted July 3, 2010 I was geting ready to put the seal in and would like an opinion on weather the crank needs a seal sleeve or is a certain amount of grove allowable? Quote Link to comment Share on other sites More sharing options...
Tony D Posted July 3, 2010 Share Posted July 3, 2010 (edited) That's what sleeves are made for! If you can catch your fingernail in it, you should apply one of those Federal-Mogul Shaft-Saver Sleeves. Stainless Steel and thin... If you are spunky and can wait for the next business day, take your stock crankshaft seal down to a seal place and ask them if there are any other configurations available. many times you can get triple lip seals on anything 10mm wide or wider. It's been a while since looking at the recess that goes into, but if you can run a slightly wider seal you have some alternatives: 1.Drive the seal in slightly further to ride on the ungrooved surface. 2.Get a wider seal with a 'double' or 'triple' lip which would likely have seal lips running in a different spot anyway. Investigate the rubber used in this case, fluroelastomer is a good choice if you can get it. PTFE should be shied away from as it WILL groove the shaft in short order unless you put a sleeve on it. 3.Put a sleeve on the shaft and run what you got. Don't forget copious application of Loctite 609! These seals aren't special, you can get them from just about any good bearing and seal house. I've replaced single lip seals with doubles before, and the results were pretty amazing (we had a crankcase pressure issue due to leaking cylinder liner o-rings). Where we formerly were puking oil out the front and rear seals, we could actually (after double lip seal installation at PTO and Pulley End of the crankshaft) pressurize the crankcase of the engine to nearly 5psi before getting fluid leakage on a dynamic shaft seal! That was more than acceptable, as our crankcase explosion vents lifted at something like 5" Hg or so. That kept all the 'steam' from the leaking water coming out the crankcase vents and not making an oily mess all over from shaft seal leaks. Good Luck! Edited July 3, 2010 by Tony D Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.