Crank pulley starting to come off.

[Slow10spd]

I have a 23 ess mustang and snapped my belt not to long ago but after inspection my crank pulley isn't flush anymore. Luckily it didn't come off but planning on doing opgs and a crank saver bolt. Should I use another stock crank pulley or upgrade to something like romac , ATI, or innovators west?

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[NGOT8R]

Try an FFRE stud kit. If you go with a different balancer, be aware that some need to be rebuilt periodically. I believe The two you mentioned have to be rebuilt. For that reason, I chose Fuidampr for my car. I haven’t even started the car since installing these, but I’m hopeful they will be trouble-free.

 

[stang17]

Just be aware ATI balancers usually require honing to make sure clearances are correct. They are not designed to be a plug and play solution.

I had dealer install ATI along with whipple kit when ordering my car. I had a crankshaft snout failure around 12,800 miles taking out entire motor. Learned at later date that the ATI was never honed prior to install.

I ended up replacing long block with gen 2 aluminator, using the balancer that came with aluminator, and adding a MFP crank support for good measure.

 

[SheepDog]

They are not designed to be a plug and play solution.

Mine went on easy peasy. no honing required

 

[80FoxCoupe]

I have a 23 ess mustang and snapped my belt not to long ago but after inspection my crank pulley isn't flush anymore. Luckily it didn't come off but planning on doing opgs and a crank saver bolt. Should I use another stock crank pulley or upgrade to something like romac , ATI, or innovators west?

Just throw a crank stud on there, Kinetic or FFRE and call it a day.

 

[tdstuart]

Just be aware ATI balancers usually require honing to make sure clearances are correct. They are not designed to be a plug and play solution.

I had dealer install ATI along with whipple kit when ordering my car. I had a crankshaft snout failure around 12,800 miles taking out entire motor. Learned at later date that the ATI was never honed prior to install.

I ended up replacing long block with gen 2 aluminator, using the balancer that came with aluminator, and adding a MFP crank support for good measure.

ATI balancers usually do not require honing for a stock coyote crankshaft. Called ATI when I was installing mine to get info from them.

According to them Ford OEM crankshafts have very good tolerances and the ATI damper is built around a stock crank and should work on the oem crankshafts without honing. If you have a good set of measuring tools you can check clearances. I put my damper in some boiling water and it went on fine. Has been holding on so far.

 

[tdstuart]

I would try to see if you can tell why the balancer has moved. Did the bolt back out or stretch?

Either way I would do atleast the FFRE stud. I have not done tons of research into the cranksavers but I would do my research if I were you.

 

[stang17]

ATI balancers usually do not require honing for a stock coyote crankshaft. Called ATI when I was installing mine to get info from them.

According to them Ford OEM crankshafts have very good tolerances and the ATI damper is built around a stock crank and should work on the oem crankshafts without honing. If you have a good set of measuring tools you can check clearances. I put my damper in some boiling water and it went on fine. Has been holding on so far.

Hope you have better luck than me. Surprisingly that after market crank sprocket took the hit like a champ.

 

[stang17]

Came across article a while back that mentioned 2018+ had a better crank.

 

[80FoxCoupe]

Hope you have better luck than me. Surprisingly that after market crank sprocket took the hit like a champ.

This balancer was not properly installed which led to the snout failure.

 

[80FoxCoupe]

Came across article a while back that mentioned 2018+ had a better crank.

The only difference I've seen in 2011-2024 coyote crankshafts is bobweight.

 

[stang17]

This balancer was not properly installed which led to the snout failure.

100% agree.

 

[Slow10spd]

Just throw a crank stud on there, Kinetic or FFRE and call it a day.

Going to see if I can as I already have a kinetic crank stud but I'm not sure ebcause something had to fail for it to start walking off.

 

[80FoxCoupe]

Going to see if I can as I already have a kinetic crank stud but I'm not sure ebcause something had to fail for it to start walking off.

What hardware was used when the balancer walked off?

 

[Slow10spd]

What hardware was used when the balancer walked off?

Ess g4 on a 95mm pulley ( on this pulley the belt can snap every once and a while on a 6 rib setup )

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