Crankpin deformed .020" at 11,000 mi.

[dmaxextreme]

Casper's first engine is being tore down, and we saw a very deformed crankshaft locator pin!

 

[02freighttrain]

? My old motor's pin looks perfect. Interesting find.

 

[LBZ]

I've never had one of these apart. Is that the balancer side of flywheel side?? It looks like the balancer side to me.

 

[MaxFarmer]

I knew I should have had that damn thing keyed also....... I cant beleive its that way after only 11K miles!

 

[Turbotug]

That's not the same 11k miles the rest of us drive though...

 

[JOHNBOY]

My 80k mile crankpins look like new? That in drives the pulley os I am guessing extra load from CP3 x2?

 

[JOHNBOY]

The second and third pins on mine look real bad. I am going to mill in a groove.

 

[McRat]

We have seen these shear on stock engines, and other engines the pins look new.

Good news is that shearing that pin won't grenade your engine like the cam pin will. Bad news is keying it requires pulling the engine out.

Would the 2CP3 make it worse? Dunno. I believe the PS would be the highest crank load on an engine.

 

[LBZ]

Would the 2CP3 make it worse? Dunno. I believe the PS would be the highest crank load on an engine.

More than the fan???? Or the A/C comp????

I'm thinkin bought goin with a liquid filled balancer. Does anyone else run one? Does anyone think it would help the shear pin problem from occuring??

 

[dmaxalliTech]

We've been seeing this for quite a while, EVERY engine build gets keyed anymore.

 

[duratothemax]

yep Ive seen it too...

except shearing this one, while it wont destroy the engine, it will stop the engine from running properly (or running at all).

 

[MaxFarmer]

Does the whole motor need to be torn down again to fix it, or can it be done with the crank still in the block?