Incorrect tooth clocking on ATI dampers
#23
Former Vendor
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Join Date: Nov 2006
Location: Sunnyvale, CA
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If the two pieces can't be separated, you would need to rotate the damper roughly 172deg, re-broach the keyway, and add your own scribe marks for TDC.
OEM dampers still like to fling themselves from the motor at modest power levels (325whp+) so that's no bueno. What other issues have ATIs had?
#30
I have been eyeing the JPM Damper. Its definitely not cheap. JPM Crankshaft Damper
BHJ's Mazda 1.8 race damper is the preferred Harmonic Damper at Jesse Prather Motorsports. Shown here in Eric Prill's F Production Miata. Click here for Jesse Prather Motorsports.
#31
I have Jesse Prather's balancer, but the car has not run with it yet. I checked the timing belt clocking, and it is like factory. Here are a few things I have noticed however:
First, there is little to no coating on the steal surfaces, and it started to rust quickly. I will have to sand the rust off and paint it, which pisses me off after spending over $800.
Second, it was borderline to small to fit over the crankshaft. Hoping it wont be an issue when i pull it off. Next time I install I will try heating it in an oven.
One of the ignition wheel fasteners was bad and had to be replaced. Not that big a deal, but for the money I spent, damn!
The trigger wheel clocking is different from the original Electromotive trigger wheel kit I got years ago. Not sure whats going on there unless there has been a change in where Electromotive mounts the trigger. That or one of them is F'ed up. BHJ balancer and trigger wheel is set up for Electromotive management that Jesse Prather helped develop.
First, there is little to no coating on the steal surfaces, and it started to rust quickly. I will have to sand the rust off and paint it, which pisses me off after spending over $800.
Second, it was borderline to small to fit over the crankshaft. Hoping it wont be an issue when i pull it off. Next time I install I will try heating it in an oven.
One of the ignition wheel fasteners was bad and had to be replaced. Not that big a deal, but for the money I spent, damn!
The trigger wheel clocking is different from the original Electromotive trigger wheel kit I got years ago. Not sure whats going on there unless there has been a change in where Electromotive mounts the trigger. That or one of them is F'ed up. BHJ balancer and trigger wheel is set up for Electromotive management that Jesse Prather helped develop.
#38
Is there a link to the issues with the BHJ dampers? The Supermiata damper thread says that there were quality control issues so they stopped using BHJ - but that could mean anything between some of the the dampers were square instead of round, to cosmetic issues that don't affect it's performance...
#39
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Just checked mine -- Its off a tooth as well. Before I raise hell, has anyone contacted ATI yet? Sav?
Edit: Called anyways.. they said one of you guys called Friday. Told me to call back in a few days. Post here if you guys get more info please.
Edit: Called anyways.. they said one of you guys called Friday. Told me to call back in a few days. Post here if you guys get more info please.