How common are issues with billet OPGs?

[WildHorse]

Only OPG I ever seen breaking is aftermarket ones. The one and only stock one I've seen break was due to to a improper aftermarket balancer instal.

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[Cobra Jet]

Here’s some threads that contain factual OPG info, take time to read them, because not all OPGs are the same and yes there have been reported failures with some aftermarket OPG.

https://www.mustang6g.com/forums/threads/mmr-opgs.156369/

If you’re going to attemp OPG/timing yourself, or get a shop to do it, here’s important notes so check the below threads before jumping in without knowledge:

Incorrect timing marks on crank sprockets:
https://www.mustang6g.com/forums/threads/psa-boundary-crank-sprocket-marks-incorrect.146665/

Clearance and other important OPG issues discussed:
https://www.mustang6g.com/forums/threads/check-your-new-upgraded-oil-pump-gears.144427/


Ford Performance OPG notes:
https://www.mustang6g.com/forums/th...erotor-oil-pump-gear-set.160950/#post-3278453

 

[jmeiers]

Here’s some threads that contain factual OPG info, take time to read them, because not all OPGs are the same and yes there have been reported failures with some aftermarket OPG.

https://www.mustang6g.com/forums/threads/mmr-opgs.156369/

If you’re going to attemp OPG/timing yourself, or get a shop to do it, here’s important notes so check the below threads before jumping in without knowledge:

Incorrect timing marks on crank sprockets:
https://www.mustang6g.com/forums/threads/psa-boundary-crank-sprocket-marks-incorrect.146665/

Clearance and other important OPG issues discussed:
https://www.mustang6g.com/forums/threads/check-your-new-upgraded-oil-pump-gears.144427/


Ford Performance OPG notes:
https://www.mustang6g.com/forums/th...erotor-oil-pump-gear-set.160950/#post-3278453

Good tips. I had a small issue with the timing mark on my Boundary crank sprocket not being centered on the correct tooth. It was in between teeth but slightly closer to the correct tooth. I verified the correct tooth by placing the stock crank sprocket on top of the Boundary and lining up the keyways and then counting teeth and made a new mark directly on the correct tooth.

 

[nate20gt]

Gen 3 forged sprocket from another group.

My car is at the dealership right now because a sprocket tooth dropped out of my oil pan when I changed the oil. Bone stock car, never hit the limiter, 2020 with 10k miles on it.

 

[K4fxd]

From watching these threads. Stock gears are too hard, Aftermarket too soft. Someone should split the difference.

 

[RedGT45]

Here’s some threads that contain factual OPG info, take time to read them, because not all OPGs are the same and yes there have been reported failures with some aftermarket OPG.

https://www.mustang6g.com/forums/threads/mmr-opgs.156369/

If you’re going to attemp OPG/timing yourself, or get a shop to do it, here’s important notes so check the below threads before jumping in without knowledge:

Incorrect timing marks on crank sprockets:
https://www.mustang6g.com/forums/threads/psa-boundary-crank-sprocket-marks-incorrect.146665/

Clearance and other important OPG issues discussed:
https://www.mustang6g.com/forums/threads/check-your-new-upgraded-oil-pump-gears.144427/


Ford Performance OPG notes:
https://www.mustang6g.com/forums/th...erotor-oil-pump-gear-set.160950/#post-3278453

Add this to the list....this one is what inspired this thread.
https://www.mustang6g.com/forums/threads/16-gt-sleeved-predator-and-f1a94.143471/post-2937713

 

[jmeiers]

Another thing I would also recommend if doing any OPGs, is get a new oil pump housing from Ford. It was like $80. And make sure you lube the inside really good because the new Ford pump was bone dry.

 

[nate20gt]

Here is a picture if my stock crank sprocket. Stock 2020 car.

 

[engineermike]

@nate20gt why does it looks like the key is sheared in that pic?

 

[RedGT45]

Looks like aftermarket has the same issue:

https://www.mustang6g.com/forums/threads/metal-flake-in-oil.124881/post-2682515

 

[80FoxCoupe]

Add this to the list....this one is what inspired this thread.
https://www.mustang6g.com/forums/threads/16-gt-sleeved-predator-and-f1a94.143471/post-2937713

Yep, i would not run a free set from Boundary.

We pulled a set of boundary gears from a 3k mile build that valvetrain issue. They were worse than the set i had. Here is a pic:

 

[nate20gt]

@nate20gt why does it looks like the key is sheared in that pic?

I noticed that too. Not sure, I didn't see it in person. Ford said it cracked and bonded itself to the crank.

 

[jmeiers]

Yep, i would not run a free set from Boundary.

We pulled a set of boundary gears from a 3k mile build that valvetrain issue. They were worse than the set i had. Here is a pic:

Out of curiosity, which OPGs do you run or recommend, if not stock?

 

[engineermike]

I think the TG and key were the victims in this one, not the perpetrator.

 

[RedGT45]

I think the TG and key were the victims in this one, not the perpetrator.

Another interesting post about the CS:

https://www.mustang6g.com/forums/threads/timing-sprocket-issues-on-15.22332/post-853136

The claim is that the stock CS holds up just as well if not better than aftermarket. He also says the cause of failure is detonation. So I think you may be right.

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