what will cause main bearings to spin
#1
Honda-Tech Member
Thread Starter
what will cause main bearings to spin
I messed up my #3 main bearing in my f22 today. I dont know what happened i measured every thing i blue printed every thing. my clearance was .0018 on that bearing. I think it was the stock crank pulley out of balance and i need a fluidampr or i had detonation. I had tuned the engine on crome and was in the process of tuning with ectune. what do you guys think
#2
Honda-Tech Member
Re: what will cause main bearings to spin
how long did the motor run before the bearing went? were you precise in your measurements? what instruments did you use? not a tape measure right?
#4
Re: what will cause main bearings to spin
Sounds like your block has issues. you need to check the straightness of the mains and get it line honed if it needs it. Could also be a warpd crank too but i doubt. The clearances might be right but one side of the crank journal is scraping one side of the bearing causing it to fail after a few miles on the engine.
#5
Honda-Tech Member
Thread Starter
Re: what will cause main bearings to spin
Sounds like your block has issues. you need to check the straightness of the mains and get it line honed if it needs it. Could also be a warpd crank too but i doubt. The clearances might be right but one side of the crank journal is scraping one side of the bearing causing it to fail after a few miles on the engine.
Thread
Thread Starter
Forum
Replies
Last Post
more3688
Honda Accord (1990 - 2002)
4
03-30-2010 03:14 AM