[gafred99]

New crank has dia of 1.37640 snout my two others have 1.37390 and 1.37425 concern is the extra .00140 too much? I use a BDS drive hub it fits tight on other 2 cranks.

 

[rmcomprandy]

New crank has dia of 1.37640 snout my two others have 1.37390 and 1.37425 concern is the extra .00140 too much? I use a BDS drive hub it fits tight on other 2 cranks.

The Ford manual calls out 1.3742"/1.3750" but, aftermarket cranks seem to be all over the map.

 

[cool40]

The Ford manual calls out 1.3742"/1.3750" but, aftermarket cranks seem to be all over the map.

key word is "aftermarket".kinda like the body part's i use from china,i call them "will fit"parts,cuz they will fit if you have a prybar,hole stretcher,and some help.

 

[gafred99]

Its a 4340 crank, just polish the extra off? fine grit emery cloth spin crank in a lathe is what I am thinking.

 

[darrin1999]

double-check and make sure everything is centered properly and that should work fine

 

[gafred99]

took me 10 minutes at 800rpm with 150 grit emery have it at 1.37490...

 

[CutawayAl]

Another option, and potentially a more accurate one, is to hone the ID of the damper with a Sunnen or equivalent.

 

[gafred99]

Yes I could have honed the hub but I have to be able to exchange them between my spare motors.
I knew something was not right when the spacer would not slip over the crank,,,,