Spun Crank Hub 6MT

[RuskiRacer]

Super wierd. When I spun my hub was at 7500 rpm and bent all the exhaust valves. Cams definitely did not bind up and everything was removable and rebuildable

 

[SlowE93]

Seems like what ever happened was violent.

N54_Destroyer

 

[JohnDaviz]

If it works or not. I don´t give af. Immediately after this thread i ordered the crankbolt capture thingy. Thanks @Torgus for the Link. Couldn´t find it in germany.

 

[RuskiRacer]

If it works or not. I don´t give af. Immediately after this thread i ordered the crankbolt capture thingy. Thanks @Torgus for the Link. Couldn´t find it in germany.

View attachment 66222

Doesn't work unless your hub is one piece

 

[JohnDaviz]

In this thread the bolt backed out. Soo technically this should avoid that failure Mode.

Other than that i use the 2019 crank hub with Loctite 648. I am more than confident that it will work fine.

 

[SlowE93]

Doesn't work unless your hub is one piece

Does not work unless the hub is keyed.

 

[SlowE93]

In this thread the bolt backed out. Soo technically this should avoid that failure Mode.

Other than that i use the 2019 crank hub with Loctite 648. I am more than confident that it will work fine.

And with the capture you believe it can not back out ?

 

[JohnDaviz]

Does not work unless the hub is keyed.

Doesn´t work until it works

 

[JohnDaviz]

And with the capture you believe it can not back out ?

how can it back out if captured? (have no knowledge here)

 

[SlowE93]

NVM too many threads on this already.
Us E93 guys get it tho

 

[SlowE93]

how can it back out if captured? (have no knowledge here)

Captured to what ?

 

[JohnDaviz]

Captured to what ?

i just figured the same. i will now think to weld the capture part to the harmonic damper. Then it should be improved.

 

[SlowE93]

i just figured the same. i will now think to weld the capture part to the harmonic damper. Then it should be improved.

So now you are starting to get it....

 

[JohnDaviz]

So now you are starting to get it....

I should start about thinking adding Slow to my nickname...

 

[SlowE93]

But you could weld the bolt to the capture and capture to the balancer.
It can still come loose....it will just do it as 1 complete piece.

 

[SlowE93]

I should start about thinking adding Slow to my nickname...

Fuck no
That's only reserved for us slow guys

 

[RuskiRacer]

NVM too many threads on this already.
Us E93 guys get it tho

Fax

 

[RuskiRacer]

But you could weld the bolt to the capture and capture to the balancer.
It can still come loose....it will just do it as 1 complete piece.

I hate the capture for the reason being unless you have a 1 piece hub its not doing anything but a fancy billet piece attaching itself to the crank pulley. You can spin the motor over if you need to you have to remove the crank capture every time. Makes the car alot harder to service

 

[JohnDaviz]

I hate the capture for the reason being unless you have a 1 piece hub its not doing anything but a fancy billet piece attaching itself to the crank pulley. You can spin the motor over if you need to you have to remove the crank capture every time. Makes the car alot harder to service

Once my engine is in the car i hope for the gods sympathy that i will never ever have to crank the engine at the hub again.

 

[SLOWESTN54]

In this thread the bolt backed out. Soo technically this should avoid that failure Mode.

Other than that i use the 2019 crank hub with Loctite 648. I am more than confident that it will work fine.

Did the bolt back out though? That bolt was ripped out of the crank ‍. The cranks threads are damaged and so are the bolts. The bolt no longer tightens into the crank