crank endplay

jeffmeadows Fri Jan 28, 2011 2:23 pm

thanyou very much for the information you guys have given me. I was wondering what the proper amount of crank (prop) endplay is. I have 5 or 6 cox .049's I am starting to mess with and everyone has different crank endplay. I would say it is up to 1/8 of an inch or more. Is this OK? Plus, how hard is it to correct this problem. One more question, do I really need special tools to chage a crank?

Thanks for any help,
Jeff

**Admin** Tue Feb 01, 2011 12:52 am

Well, I usually would check to see if the crankpin is hitting the tank or backplate. Just remove the cylinder and push on the driveplate, it it rubs on the tank or backplate then I would tighten it up or replace the whole piece. I actually don't have any of the special crankcase tools myself but I do get around using some of my other tools. I have a section on my site that may help with this. http://sites.google.com/site/coxenginecollection/replacing-a-broken-crankshaft-in-a-post-1959-babe-bee

jeffmeadows Sat Feb 05, 2011 10:35 am

thanks for the info and reference pictures. I think even I can figure it out now. You have been a great help. I have 2 out of 6 of my project engines going great. 4 more to go!

thanks Jeff

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crank endplay

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