Aluminum bell crank thread size??

Post by **MelvinsArmy** » Mon May 14, 2007 2:33 pm

I'm having some troubles getting ball joints to thread in to my aluminum bell cranks. I can't seem to get the standard 4-40 ball joints to thread in to attatch my steering linkage. Anybody know what size thread is supposed to fit?

Post by **shodog** » Mon May 14, 2007 3:10 pm

I'm pretty sure they are 4-40. the threads might be boogered up. take a long 4-40 screw and screw it in from the back side. that will help clean the threads up.

Post by **Eau Rouge** » Mon May 14, 2007 3:26 pm

They were all 4-40 threads, but I'm wondering if your bellcranks may be for an Ultima or some other import? They might be 3mm if that's the case.

Just a guess...

Post by **MelvinsArmy** » Mon May 14, 2007 7:11 pm

Got it figured out. I took shodog's suggestion and threaded a 4-40 screw up through the bottom. I still had some troubles getting a 4-40 ball joint to thread correctly though the bellcrank, but luckily I had a NIB pair of AE 4-40 ball joints and they went in smooth as silk. Thanks guys!

Post by **shodog** » Mon May 14, 2007 8:30 pm

MelvinsArmy wrote:I took shodog's suggestion and threaded a 4-40 screw up through the bottom.

Whoo Hoo!, Johnny tell him what he wins

Post by **MelvinsArmy** » Mon May 14, 2007 10:05 pm

shodog wrote:
MelvinsArmy wrote:I took shodog's suggestion and threaded a 4-40 screw up through the bottom.
Whoo Hoo!, Johnny tell him what he wins

Already claimed my prize. A bellcrank that I can use!!

I think the ball end screws I was using were the real problem. The 4-40 went through with no problems, then the NIB AE pieces threaded perfectly. I don't know what this other brand I was using is, but they are 4-40's too. Just crappy old threads I guess.

Post by **Whiskers** » Tue May 15, 2007 3:55 am

Keep a 4-40 tap around handy for that stuff. An 8-32 doesn't hurt either.

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