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Discussion Forum

47 B seal leak

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01-12-2002 17:30:47

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how hard is it to change the crank seal on the front of the B. Mine started leaking last summer and I was weighing the choice to replace the seal or just keep adding oil. I run 15-30 in her and she seems to like that during the summer. I don't run it all winter and use it with the belly mower hard all summer. Are there any special tools I'll need or tricks I could use? Can it be done by just taking the front cowl off? Thanks

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Butch (OH)

01-12-2002 18:25:36

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 Re: 47 B seal leak in reply to ole, 01-12-2002 17:30:47  
If you end up taking off the timing cover to replace the seal you must align it so the seal is centered on the crankshaft when you reinstall it. The bolt holes are bigger than need be and if you just put it on and tighten it you WILL have a leak again soon if not immediatly. Lots of people fight leaks at the front seal because they don't know this. Check it even if you don't take it off, there is a good chance that it is not centered if the the engine has been apart before.

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01-12-2002 17:39:06

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 Re: 47 B seal leak in reply to ole, 01-12-2002 17:30:47  
you have to drain the radiator, remove it, pull the crank shaft pulley off (real tight), then pick the seal out of the case if possible. you may have to remove the radiator mount plate and engine plate covering the gear train if you want to take the cover to the shop and remove the seal from it.(off the tractor) good two day weekend job.

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