I have an older Briggs model # 196702-0142-01 and currently have a leaking sump oil seal as I replaced with a new sump and seal about a year ago. The Briggs engine is on a troy-bilt 33" wide cut mower that I purchased in 1996. I think the crankshaft Part # 495629 is worn down so much that it will continue to leak even with a new seal. I can not find a new or used crank to replace this one. Also looking for a good used crank as I have looked on Ebay, facebook and everywhere else. Anyone got any ideas.
Hello CGM,
Unless the crank has a very serious groove in it where the seal rides, I would replace the seal with only a new B&S seal. Do not use an aftermarket seal or anything that claims it is the same. You have to read parts ads carefully lately because they use language like: "same as part XYZ" and so forth.
I recommend Jack's small engine or Parts Tree to get a genuine crank seal.
Make sure the crank is lubed up lightly along with the lip of the seal, then pack grease on the inside back and carefully push it into place making sure the sealing lip does not fold outward. Most cranks have a smooth machined bevel, so sand it clean if it has rust from exposure.
Hint: a wood skewer or a toothpick will gently guide and walk the seal lip into place but work slowly. Do not hammer on the seal because the garter spring will likely come out of the back of the seal. Most can be pushed in by steady hand pressure.