blower rebuild bolt sizes

i have a 4-71 which needs rebuilt.

i would like to replace all the bolts as some are missing anyways

does anyone know the sizes i need ?

i know you can buy bolt kits from bds but i'm in the uk and would like to get them locally this week if i can

thanks

 

DEK - What I do to replace bolts, if I don't have them, is to use a piece of welding rod to measure the depth that I'll need. Use a bolt longer than you need to figure out what the threads are. I make a list of how many of each bolt, their length, and pitch, then determine what grade I'll need for the different sizes. Then it's off to the Industrial Fastener supply Store. The list of prezactly what you'll need is a big help. I also subtract 1/4" from the length to be safe...and I buy stainless AN washers for EVERY bolt I buy. It keeps from galling up what ever I bolt together...and a dab of medium or high strength Loc-Tite doesn't hurt either...depending on the application. I don't use lock washers. On all of my through bolts, where the end of the bolt comes through a nut and will show, I leave just a thread or 2 showing and hack saw/dress the excess off. Before I cut the bolt, I use AN washers on both ends. I think it looks a bit neater with out a long bolt sticking out. I also try to use stainless Ny-Loc nuts...

 

dek, if I remember right the bolts are all U.N.C. threads, there,s a 4/71 in my garage I can take a look at tomorrow morning to check thread sizes & lengths.

 

It may be the least expensive to get all the parts (bearings, gaskets, seals...) from dean's blowers in Washington state, he is on the web. He probably could add in all the correct bolts.

 

I would go with the advice of figuring it out yourself, based on what your blower needs. There are different end plates etc that might mess things up