Predator crank shaft bolt error?

[Preduhtor_122]

I know that there is a thread on here saying the bolt size for a 212 predator is 5/16-24 but I’ve went to Home Depot and got a bolt and then I’ve gotten 2 different ones from other hardware stores and they simply will not fit. They thread in a tiny bit then get stuck. The closest I’ve found to a bolt fitting is a M7 1.00 but the bolt is a little small. So I figure maybe a M8 1.00 would be perfect but I looked all over Home Depot today and simply couldn’t find one. Maybe the threads on the crankshaft are stripped? Bu I’ve tried a 5/16 24 on another predator 212 and i got the same problem. Any ideas?

 

[Brianator]

Hmm that's odd... is this a new engine or new to you? Sure it's possible the threads are damaged but it's also possible that if you're not the original owner that someone before you did a crank swap with a Japanese crank and they are metric threaded. Clean out those treads, shine a light in and see if they look good or not is what I'd do.

 

[Preduhtor_122]

One is new to me and one I purchased myself. I bought an upgraded torque converter that came with two different bolts to put in the crankshaft and none of them worked. I’ll have to inspect both crankshafts and see if they are damagaed

I need to find a solution because since a can’t get a bolt to fit in there. I tried the bolts that came with the torque converter and they went in a tiny bit but they keep popping out and sending my parts flying. I’ve already had to order new springs. I’d hate to have the bike just sitting there all because I can’t find a bolt

 

[Brianator]

The bolt(s) that came with it... does it feel like it threads in properly and is the right size to be there?

Is it possible the 5/16 bolts you got were 32tpi (extra fine)?

 

[Preduhtor_122]

No. They both three in a couple threads then get stuck there. Only thing that I can think of is maybe a bolt was torqued in that wasn’t suppose to go in there and left the crankshaft stripped inside

 

[bob58o]

The bolts that usually ship with TC kits have not fit Predators in the past. 5/16 -24 has always worked for me with Predators. Maybe if you cranked down on the included TC bolt first, it messed up the threads in the crank. I'd run a 5/16 -24 tap in there to clean out the threads and see if the 5/16-24 bolt takes. Otherwise I'd try drilling a tapping for a larger bolt like 3/8".

I always check the threads on nuts and bolts at the store before I buy, if they are not individually packaged and labeled.