12-17-2012, 11:07 PM
Couldn't resist so I sneaked over to Chuck's during lunch to check the end play. I just had to know or I would have gone nuts over the next 4 weeks
I measured from the face of the flex plate. Tapped the balancer all the way aft, zeroed out the dial indicator, then pried the balancer forward. I ended up with .0125. I believe that is just out of limits but wonder if that is truly enough to be eating through the bearing and making such noise? I cranked it up and there was no sound until it warmed up and I punched the throttle; then it started the noise. I tried to see if moving the crank full forward or aft would change the sound. Each time, it took approximately 4 seconds after engine start for the sound to begin. I crawled under the oil pan with a stethoscope and spent a decent amount of time trying to locate the sound and I am confident it is most prevalent near the middle of the oil pan. That is the only area I can pick up the squeaking on the stethoscope although my ears tell me it seems to be originating from the flex plate area. I get no squeaking when I place the scope on the oil pan bolts near the rear main.
With the endplay out of limits and the apparent location of the sound, I am inclined to go with thrust bearing. I will pull the pan when I get back in town next month and replace it so stay tuned.
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I measured from the face of the flex plate. Tapped the balancer all the way aft, zeroed out the dial indicator, then pried the balancer forward. I ended up with .0125. I believe that is just out of limits but wonder if that is truly enough to be eating through the bearing and making such noise? I cranked it up and there was no sound until it warmed up and I punched the throttle; then it started the noise. I tried to see if moving the crank full forward or aft would change the sound. Each time, it took approximately 4 seconds after engine start for the sound to begin. I crawled under the oil pan with a stethoscope and spent a decent amount of time trying to locate the sound and I am confident it is most prevalent near the middle of the oil pan. That is the only area I can pick up the squeaking on the stethoscope although my ears tell me it seems to be originating from the flex plate area. I get no squeaking when I place the scope on the oil pan bolts near the rear main.
With the endplay out of limits and the apparent location of the sound, I am inclined to go with thrust bearing. I will pull the pan when I get back in town next month and replace it so stay tuned.
Sent from my Droid using Tapatalk 2
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.
mokin:
Roads? Where we're going, we don't need roads.
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mokin:Roads? Where we're going, we don't need roads.