I am putting the flywheel back on right now, i put the nut on with compound and sealent. I used impact tools so i used my gun to put it back, its tork range is at the specified tourque range for the nut. I got it on, it is flush with the end, which looks alright. The problem is i can wobble it a little bit. Is this normal or is it not on there tight enough? Thanks,

Brent

 

the flywheel def should not wiggle on the e-sheft. there may be some front to back end play on the e-shaft, but very little..forgot specs...

 

Why didn't you use a TQ wrench? I turn in tools once a year in the military for recalibration. I don't trust impact guns for proper tq. Sounds like you might have stripped it already. But wait for other's advice before jumping on just mine.

 

Maybe the KEY was not in correctly and it is jammed such as to cause wobble.
Or maybe your rear bearing is hosed.

There should not be any wobble.

 

I agree on the calibration but fortunately the gun is brand new, but that probably doesn't matter too much. it was difficult to find a torque wrench capable of that much torque, but i will special order one off the internet. It's not stripped, i will have no problem getting it off, i have 2 flywheel nuts anyways. It looks like there is only enough threads for the flywheel nut to go on flush with the end of the ecc. shaft, but i will get it off and take another look. The wobble is not much, and it only wobbles when i wiggle from the bottom or top, side to side there is no play, it almost looks like it is in the ecc. shaft, but it does not go directly front and back, when the bottom edge goes in, the top goes back, which means it is not in the shaft. What do you think?
Thanks for the help gents,

Brent

 

Wobble is not good. Remove everything and take another look at it. I agree with cewrx7r1, you might have the key jambed or something. You can pretty much tighten that big nut with your hands enough to keep anything from wobbling, the torque just makes it so it is "tight" when high forces from the engine are involved.

Before you torque it again make sure nothing wobbles when you have it hand tight.

 

The torque setting for that nut is insanely high because you're press-fitting the flywheel onto the tapered end on the e-shaft. Really, the trick is just to tighten the crap out of it. I just let the impact gun go to work until I can't get it any tighter, then call it a day. Of the MANY flywheels I've installed onto motors, I've yet to have had any problems.

Pull the flywheel back off and carefully check for a physical interference problem. You did install the key, right?

Dale

 

You cannot tighten the flywheel with a torque wrench. It has to be done with a special tool, or an impact wrench capable of 350 ft lbs (Mazda spec). If the flywheel is on right, you will not be able to move it without turning the engine.

 

Sure you can.... if you also have a torque multiplier .... However, they cost a little bit. A local friend has one, very cool tool.

 

I had the same problem, I took everything apart and come to find out that the key slid back and wedged in a way that caused wobble. Now if you dont have a torque wrench capable of 350lbs. put a pipe of 5 or so feet long on whatever wrench you are using and lets say you weigh about 150lbs or so. then you take two and a half feet from the center of the e shaft and step down on the pipe with all your weight. but dont bounce!

 

Umm ya, I have 4ft long tq wrenches that are used on helicopters. I'll check the max tq setting tomarrow, but I'm pretty sure it covers 350.