Technical > Spud Miller's Cave

ETC Limiter with tach output on my Mallory.

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gregm784:
I have a couple ideas.
1. was crap in the system that was missed. I don't really believe this, as there was nothing in the bearing or the pan.
2. detonation from being on the limiter too long.  The fuel tune up was well within the window of safe, and the plugs showed ok. 

this combo has been together for four years and has never touched a bearing, even with 26#s of boost and running 7.teens.

I fattened it up to rule out lean, and upped the limiter so it never touched it sunday.  I really hope the bearings look ok. :(

LZ:
Thanks for the update Greg.
Luke

gregm784:
It killed #2 again big time.  Pulling the crank to see if it's bent/cracked.

masracingtd1167:
Greg I had some issues with mine awile back Iwould loose oil pressure shutting down . It wasn't hurting bearings bad but they wern't as good as they should be . I put an accusump on and it cured the problem  . I also opened up the clearance to .0035 and went to coated bearings . I don't know if my problem has anything in common with yours . I just thought I would share this with you . I hope you find the cause Im sure you will   

gregm784:
Thanks for the ideas.

Mine has a 3qt accumulator on it.  I run .0045 and 50w oil.

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