Is the crank pulley bolt normal or reverse threaded?

I have a Helms, have consulted it, and don't see any mention of it being reverse threaded. I would love some confirmation of that before I break out the impact wrench though...

thanks
jeff

 

Usually reverse tread bolts have notches in the middle of the sides on the corners....i.e. in the middle of the pointy part.


Edit: I sounds like a fricken third grader.


[Modified by Spade, 8:42 AM 2/20/2002]

 

This is normal thread
make sure to hit it with quick short blast with as much PSI in the tank as you can get.


[Modified by Crazydave, 9:04 AM 2/20/2002]

 

Normal thread, and you will need an impact gun to get it off...


Jason

 

Once the bolt is off, how would you torque that bolt back to spec?-- Or do you just give it what your cheap impact gun can do in forward?

 

You should use a torque wrench when putting it back on. I didn't have a good impact wrench when I had to take mine off a couple weeks ago. I was able to stick a strong bolt (I tried a screwdriver and it broke on me), through the flywheel to keep the crank from spinning. Then a 1/2" ratchet with a cheater bar got it off.

 

That's exactly what I did. Jam a screwdriver into one of the flywheel holes and get a 19mm or 17mm (I forget which) ratchet with the end of my hydraulic jack handle and turned it HARD. It got off. Hehe. My 350ft-lb. impact gun didn't work...and my friend's 800ft-lb gun didn't work either.

 

How are you guys holding the flywheel still when torquing the bolt back on if it breaks screwdrivers?

 

After it broke a screwdriver I just found a bolt that fit through the hole.

 

Make a crank pulley holder.

 

Hey -TJ, what is the size of that nut you have welded onto the bar? I've been thinking of just making my own also. Thanks!

 

It's a 33mm nut - of course you're familier with the way metric fasteners are sized I hope....just go somewhere that sells a good variety of metric fasteners and ask for a 33mm nut. The thread pitch doesn't matter (1.5 or 2) because the measurement across the flats is the same (50mm). I'm not sure of the size of the hex broach on the R motor, but this is the closest size nut you can buy for the variety of pulley's I've got. Also, you might consider getting 2 nuts and welding them side by side if your pulley is anything like the B18C1 (the broach is deep in the pulley rather than right on the outside like the D16Z6 (etc.), B16A, B18A.

-TJ

 

Nice tool you got there T.

 

ack... why is it that when there is a pic i actually want to see, i only get a red X?!?!

 

I think Sears might sell them. But if you make your own its a lot cheaper.

 

Yeah....I made it. Sears was not involved in the inspiration, creation or design. If they make one similar, they ripped it off from me
It's a 33mm nut and an 18" long piece of 2" strap, 3/16" thick. The 33mm nut is large enough in the center (33mm for those of you not fastener savvy) for a 1/2" impact socket to fit through.
It works on 92+ D series crank pulley's and B series pulleys where the hex braoch is on the outer surface. I've got another nut to weld along side the one on there so that it will work with a B18C pulley (deep broach).
I've made a couple of other tools for holding the old D series pulleys with the holes around the outside too.
If you've got a lift, you can try to hold it with one hand while breaking the bolt loose with a 1/2" breaker bar. (I've never had to use an impact - didn't get a compressor until recently). It works better if the car is on jackstands - you can just let the handle rest on the floor and put all your effort into loosening the bolt.

 

I bought the moroso crankshaft pulley remover from summit racing for $70. tried impact guns and all the above with no luck before buying. I used the pulley remover with a jackstand to get it past the wheel well and a breaker bar to break it loose

 

Hey -TJ, can u get that picture of your tool to load up; I'd really like to see it but I'm just getting this red x where the picture's supposed to be. Thanks.

 

here is moroso's tool.

 

moroso tool, used it loved it. worth every penny of 70 bux

 

Yeah, here it is from a different host.


Total cost, less than $5


[Modified by -TJ, 7:27 AM 2/28/2002]


[Modified by -TJ, 7:29 AM 2/28/2002]

 

dang.. thats a big tool!

 

We sell a fabricated crankbolt wrench similar to that in TJ's photo for $48.50 plus shipping



[Modified by hensley, 3:05 PM 2/28/2002]