mint 400 crank needed

Started by chicagojerry, November 17, 2009, 09:49:32 PM

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chicagojerry

i have a 400 motor with the right side crank damaged. i need one of the cranks that do NOT have the external weights. anyone have one for a reasonable price? thanks for any consideration. chi jer
how bout you jake, any in that stuff that you are selling?

JP Morgen

Jerry,
   I have a crank like you need, needs rod,of course, I will check it over tomorrow, measure things, etc. and make sure it is usaeable, look for an update tomorrow, JP Morgen.

JP Morgen

Jerry,
   I checked out the early 400 crank I have and everything is a go. No rust, seal surfaces good, and main bearing shaft diameters are perfect. Does $50, and I pay the shipping, UPS ground, sound fair, let me know. JP Morgen 415 822-1315, shop.

chicagojerry

thanks jp.. i'll call you. jerry

joe novak

I have been told that it is a good idea to freshen up the surface of shafts when installing new seals with very fine emory cloth or crocus cloth.  I have seen rubber-lipped seals wear a shallow groove in steel shafts.  It is not a good idea to re-install a new seal in the same exact location.   It is best to install the seal deeper or more shallow in the seal bore so that the lip can seat on a new surface.  This is especially important with main seals which deal with engine crank pressure on one side, oil on the transmission side, or possible dirt on the ignition side.   Please comment.   Thank you,  joe

chicagojerry

joe, i concur with your analogy. also,if the groove is a little too deep for comfort, there is a device called a "speedi sleeve" made by chicago rawhide that you can press on over the seal surface once the bearing is in place. its very thin and is a press fit. it gives you a new seal surface and can salvage some otherwise unusable cranks. i have runn some of my race bikes with these and have never experienced a related failure. some other manufacturers make a similar product and they are available from good bearing house or even some good auto parts stores.   jerry