marshall_mosty
08-12-2007, 01:34 PM
As most of you know, during qual on Sunday at TWS, I though my motor went south. I had a huge vibration and when I pulled into the pits, there was a bunch of mechanical sound that I knew shouldn't be happening. I put the car on the trailer and called it a day.
Well, I pulled down the short block last night to find all eight cylinders intact with the rings and bearings all where they should be. All the rocker arms were in place and I don't think any of the pushrods are bent. #1 had an oily sparkplug, so those rings were probably starting to let some oil by and cause the smoking.
I had a bit of white speckle on the #5 combustion chamber and top of piston. It's powdery so I don't know what that means. I can easily wipe it off.
http://www.mustangmods.com/ims/u/1280/10438/188148.jpg
http://www.mustangmods.com/ims/u/1280/10438/188149.jpg
I'm going to go on and rebuild this one since it was starting to smoke a bit on downshifts (junkyard rebuild can only go so long).
I'm going to tear into the transmission next as it is the only other thing that spins when the engine is running that would (could) make that kind of a noise.
I'll throw a new SFI balancer on also just to make sure I have everything taken care of.
Does anyone have any other suggestions? I was certain I would see some type of mechincal carnage when I pulled the PS head off last night...
Sometimes having everything look fine when you know it isn't is frustrating because now I have to go chase the failure somewhere else.
Well, I pulled down the short block last night to find all eight cylinders intact with the rings and bearings all where they should be. All the rocker arms were in place and I don't think any of the pushrods are bent. #1 had an oily sparkplug, so those rings were probably starting to let some oil by and cause the smoking.
I had a bit of white speckle on the #5 combustion chamber and top of piston. It's powdery so I don't know what that means. I can easily wipe it off.
http://www.mustangmods.com/ims/u/1280/10438/188148.jpg
http://www.mustangmods.com/ims/u/1280/10438/188149.jpg
I'm going to go on and rebuild this one since it was starting to smoke a bit on downshifts (junkyard rebuild can only go so long).
I'm going to tear into the transmission next as it is the only other thing that spins when the engine is running that would (could) make that kind of a noise.
I'll throw a new SFI balancer on also just to make sure I have everything taken care of.
Does anyone have any other suggestions? I was certain I would see some type of mechincal carnage when I pulled the PS head off last night...
Sometimes having everything look fine when you know it isn't is frustrating because now I have to go chase the failure somewhere else.