Well that didnt work: Lucky Mod Failed

[6 Nebraska IDIs]

Started getting VERY bad vibrations that would come and go with placement of the clutch.
Looked under the cover, didnt see anything that stood out. Tried rotating the two disks to see if there was any movement, nothing. Heard a clunk, so moved it forward and back (to engine and to rear) and it moves almost a half of an inch.
Dont know what is going on here. We torqued the crank bolts and put loc tite on them.

 

[BigRigTech]

Are you saying the flywheel is moving? If so it couldn't have been sitting flush on the crank and it could have vibrated loose?

 

[Agnem]

Shawn, I never thought to ask you, but when you assembled your flywheel, did you put the nuts for the through bolts of the lucky mod toward the front? That way, you can see the nuts throught the inspection plate, and montor for looseness.

 

[6 Nebraska IDIs]

Mel, I dont remember for sure.
Good thing my dad cought it though, or I'd be living with two less limbs right now.

I honestly dont know what happened. I havent looked at it. I was out of town all weekend.

 

[Agnem]

Did you use fine thread bolts, and torque them to spec with a calibrated wrench? A drop of red locktight is a good idea too.

 

[IHWillys]

Did you use fine thread bolts, and torque them to spec with a calibrated wrench? A drop of red locktight is a good idea too.

It sounds to me as if safety wiring those nuts would be a good thing to do but I'm merely a sideline observer on the Lucky Mod subject.

Ken

 

[Dsl_Dog_Treat]

Didn't use nylon stopnuts by chance?















Don't ask me how I know that one.

 

[6 Nebraska IDIs]

Used grade 6 metal lock nuts. Couldnt get them in 8.

 

[Agnem]

Didn't use nylon stopnuts by chance?















Don't ask me how I know that one.

I did, but I used the lock tight also. Mine haven't melted yet.

 

[Fordsandguns]

Once you have them torqued, why not tack them with a welder?My father in law had a psd that the fly wheel started throwing parts out of, and they just welded it on the outer edge with it still in the truck. I would worry about balance doing that way but they never had any problems with it.

 

[Agnem]

Balance and warpage would be the two things I'd worry about in that instance. I guess it can be done, as you attest.

 

[Fordsandguns]

Balance and warpage would be the two things I'd worry about in that instance. I guess it can be done, as you attest.

I asked them about the balance and warpage issue, they said they never noticed any new vibrations. He said they didn't go all they way around it. just three different spots. I guess they got lucky. But i was thinking of just tacking the bolts once you got them torqued. I would think that wouldn't create enough heat to warp it.