Well Awhile back , I put a thread in the engine parts for sale Here. for a Used 178MM Fluidampr. I had agreed with the Customer too exchange out his good used one for a new 182mm Fluidampr. Well quite some time passed . And I got a e-mail from him . all mad about the 178 he was going to send me . HIS tech!! said It was bad and he didn't screw up the install.?? And He is not paying for the upgrade. So I asked him to calm down and send it anyway. This is what I got back. See Attached pictures.
#1
The bolt flange seated nicely with full contact Patch, The oem key way is 4 o’clock, but look at the 4:30 area at the bottom , see the metal pushed up
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#2
This is a better shot. The fit between the Crank snout & The OEM HB is about .00015. Kinda Loose by US Designed Motor & Fit. It is easy to feel the engagement ? Alignment of the key inserting to the keyway when installing. The Fluidampr is a Tighter fit .001 Instead of the .0015. . It installs not quite as easy , and you must feel for the key to keyway fit.
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#3
As you can see this install was about 10 Degrees off .< Really Bad .But, Notice that there is no Fretting of metal transfer from being a loose fit in the bore area. No metal roll up on the drive side as if it was a loose / improper torqued bolt. < Really Good!!
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#4
This is the way I install the new HBs. I set the OEM one to 37 – 38 degrees ATDC. Remove it , Mark the new one at 37 – 38 degrees ATDC. Feel for the key engagement. , Because of the tighter fit , it may not bottom out against the oil pump drive sprocket , during a hand install .So I use the old bolt & the 1 1/16” socket adapted to a 1/4” drive ratchet to bring it in the rest of the .310 , That way you feel it slide into place. Remove the old bolt install the new one , Tighten to the new Higher torque spec 180 Ft lbs & stretch 90 degrees .For real critcal installs I remove thw motr mount assu & Starter motor. I intall a flywheel lock , with the motor at 37 - 38 degrees ATDC. It is a pain in the A$$, and Time consuming, But I know it is correct.
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#5
If you also look I paint mark the 90 degree Stretch points
So At this point , we have to find a way to get paid for the replacement part that was damaged. It was not the owners or my fault , and the owners
(Master Tech) tech / installer needs to know that more attention needs to be paid too. I had this returned assy sold , for $450.00. But that is out the window LOL. Maybe you & your tech can trade out some labor for this mistake.

 

Classic case of a condition known as "key bound".
This is 100% installer error.

 

Good luck getting that Master Tech to own up to that one.
I've been in that finger pointing situation before.
Hope that customer finds a new Master Tech.
It's very hard to find a honest competent mechanic these days.

 

This Tech must of had some BIGs Guns. The tech said the pulley ran True , and no oil leaks?? Christ almighty, the barrell was out of Round. My Guess He was in a Big Hurry, and saw some easy side money. After the dealership closed for the Day.Cheers _PTEngineering

 

Genius! Love love it! Hope many read before trying to do "worlds strongest man competition" on the poor thing

 

Happened to my car as the installer ruined my key-way on the crank. Time consuming and costly repair.

 

Thats why i dont fool around with pullies

 

Wow...I have to agree that it is 100% an installation error. Even the pulley that fell off my car and destroyed the key looked pretty darn good compared to that.

 

Fuuny thing about this one , is the Key was still intact , no damage to it. & The Crank snout, had no damage . Go Figure
Cheers _PTEngineering

 

LOL...