kevsgt

I'm trying to reinstall my crankshaft pulley bolt, but it keeps turning the engine over. My electric impact gun doesn't give me the ability to set a torque, so I'm afraid to tighten it that way. I believe I'm to hold one of the 14mm bolts on the torque converter and then torque the pulley bolt, but unsure how to do that. Something about an inspection cover on the tranny? A photo or diagram would be helpful.

proeagles

Why don't you just look for it? It's got to be at or near the bottom of the bell housing just as it is on every transmission.

kevsgt

Ok I found it. 14mm didn't fit over the bolt but a 5/8" does. Next question is the crankshaft pulley bolt torque. Apparently spec calls out 115 ft-lbs, but Steeda suggests 37 ft-lbs then another 1/4 turn.

kevsgt

Well it's impossible to hold the torque converter from spinning... so I'm stuck using the impact gun to torque the crankshaft pulley bolt. It's rated to 2250 in-lbs (190 ft-lbs), with 3 speed settings. I'm going to set it to the middle setting and prey it's close to 115 ft-lbs. I've never used an impact gun before, does the torque increase with each impact? if I hold the trigger for a good full second, will it hit max torque by then?

1slow67

Flywheel turner.

kevsgt

Does that work thru the inspection hole?

proeagles

If you can see the flywheel, then yes it should. You are talking about the harmonic balancer right? That Steeda torque sounded more like the pulley to the balancer. The longer you hold the trigger the more torque that will be applied. It is impossible to guess how much torque is being applied. As you turn the crank to align the holes in the flexplate for the torque converter you should also see holes that you can wedge a tool in to keep the crankshaft from turning over. I've never seen a transmission that you can't access the flexplate and torque converter.

kevsgt

Yes I think the crankshaft pulley is the same as the harmonic balancer pulley.

Here is a picture of the access port. There's no feature I see other than the bolt/nut. I don't see a way to grab the rim of the flywheel with a tool.

proeagles

I'm at a complete loss without actually seeing this thing in person. I've dealt with Chevy transmissions and a Ford AOD in my hot rod and have never seen anything like this. Hopefully someone else who has worked on this late model tranny can chime in.