Rebuild all the salvage Miatas! ASS!
#2407
I've had those bolts vibrate out before. After that I started lock-tite'ing them in. At some point I upgraded to a higher grade bolt (10.something) as they were stronger so I could torque them tighter. Stronger bolts + red lock tite, never had one back out or break after that. I now have ATI damper so don't use them but that fixed my problem. No torque wrench, I torqued the new bolts to like 20 something foot lbs, basically to "I think another 1/4 turn would snap the bolt".
#2410
SADFab Destructive Testing Engineer
iTrader: (5)
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
And is now probably 3 hours behind me on the 800 mile trip home.
Bet those were OEM bolts. I have about 350 left from when I bought 4 100 packs instead of 4 bolts to replace mine.
Bet those were OEM bolts. I have about 350 left from when I bought 4 100 packs instead of 4 bolts to replace mine.
#2412
Supporting Vendor
Thread Starter
iTrader: (1)
Join Date: Sep 2010
Location: Lake Forest, CA
Posts: 7,951
Total Cats: 1,004
I talked with Savington at the end of the evening and he said that usually the problem is over torquing. The bolts stretch and are weakened, and then they break.
I definitely over torqued the ones I put in there after this mishap.
That being said, it performed great the last two sessions, and on the last session I set a new personal best: 1:49.4. Really really happy with it. I know there's a lot more time in the car and me as is (still braking too early at turn two and the corkscrew..... And turn 4) but car still runs. Made it 3 hours to Folsom staying the night at a friend's house, drive the rest of the way tomorrow.
Many, many pics and videos forthcoming. Wish me luck!
I definitely over torqued the ones I put in there after this mishap.
That being said, it performed great the last two sessions, and on the last session I set a new personal best: 1:49.4. Really really happy with it. I know there's a lot more time in the car and me as is (still braking too early at turn two and the corkscrew..... And turn 4) but car still runs. Made it 3 hours to Folsom staying the night at a friend's house, drive the rest of the way tomorrow.
Many, many pics and videos forthcoming. Wish me luck!
#2413
That being said, it performed great the last two sessions, and on the last session I set a new personal best: 1:49.4. Really really happy with it. I know there's a lot more time in the car and me as is (still braking too early at turn two and the corkscrew..... And turn 4) but car still runs.
Many, many pics and videos forthcoming. Wish me luck!
Many, many pics and videos forthcoming. Wish me luck!
Good luck on the trek home.
#2414
Supporting Vendor
Thread Starter
iTrader: (1)
Join Date: Sep 2010
Location: Lake Forest, CA
Posts: 7,951
Total Cats: 1,004
I wasn't exactly fighting the MS issues anymore... Just running with a 5900 RPM rev limit, ha.
#2416
Elite Member
iTrader: (37)
Join Date: Apr 2010
Location: Very NorCal
Posts: 10,441
Total Cats: 1,899
Now that I'm done making excuses, you are just a straight up better driver than me. I had a hard time keeping up. Good show sir
#2419
Have you ever looked a the cam/crank logic in the MS3 codebase? It's pretty clear that it wasn't originally intended to have both types of sensors and someone hacked in the cam sensor support. It can't tell the difference between a missing cam, a missing crank, or an extra crank signal, and an extra cam signal would be completely ignored. The composite logger isn't really definitive either.
All I'm really saying is that Ed had two failures that are vaguely related, and it's conceivable that they were actually the same one. Now that he's fixed the crank pulley it's worth doing the 6000 RPM test again before doing anything more to the cam sensor.
--Ian
All I'm really saying is that Ed had two failures that are vaguely related, and it's conceivable that they were actually the same one. Now that he's fixed the crank pulley it's worth doing the 6000 RPM test again before doing anything more to the cam sensor.
--Ian