Zero oil pressure....I get to have fun again
#31
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This is pretty crazy. what would cause the pump shaft to bend or sheer . its pretty tough. also, how can a pump go bad. there is really nothing in there to go bad! (unless the shaft comes off the inner impeller mechanism. ) sure, it all lines up at 0, but whats the tension like if you can see visual bending or misalignment of the oil pump pulley. (hard to tell from that pic what is going on for me)
definitely keep us in the loop as you move forward.
good luck!
MK
definitely keep us in the loop as you move forward.
good luck!
MK
#33
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Originally Posted by perrys4
I want to know how the wife is taking this issue!! :-)
If I had experienced another bent-valve situation, I'm sure the reaction would have been a little more intense.
Is it possible that the nut holding the pump gear could have worked itself loose? Still pure conjecture, but it certainly makes sense that the gear itself came loose and wiggled off. When the warning first happened, the car sounded totally normal. Dennis was along side me and heard nothing...which would be consistent with a loose, but not yet skewed gear (i.e., spinning in place).
It was only when I re-started (very briefly) it that the scraping noise happened. The initial torque of re-starting it could have jarred the gear off it's normally-flush fit with the spline, throwing some metal shavings off as it did so.
I obviously know what a belt failure sounds like, and I knew right away that it wasn't the case here.
Having the nut come loose seems the most logical explanation until I find something else to dis-prove the theory. A seized pump, bent shaft, etc., all would fall into the incredibly-rare category.
#34
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Yes, Dave, the nut coming loose is what I'm hoping it turns out to be. WHY it came loose....well.... Check the assembly versus the WSM/PET for all the washers, the shim and the woodruf key. The woodruf key is the one thing that argues against it just being a loose nut. I didn't think there is enough room between the gear and the cover for the gear to come far enough off the shaft to disengage the key. It looks more cocked from the picture than simply coming loose on the shaft. But, I'm still hoping.
Last edited by Bill Ball; 08-22-2005 at 02:04 AM.
#36
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Dave,
The flywheel lock is on its way, either by plane with me on Tuesday or Wednesday, or next day UPS once I figure out when I go back to AM General. I won't be needing the lock now that the car will officially be sacrificed as chum to the shark hunters.
Shawn
The flywheel lock is on its way, either by plane with me on Tuesday or Wednesday, or next day UPS once I figure out when I go back to AM General. I won't be needing the lock now that the car will officially be sacrificed as chum to the shark hunters.
Shawn
#38
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Dave,
I know, this is not what you want to hear, but if that pump gear came off and the oil pressure dorpped to zero. That would damage the main and rod bearings.
I would drain the oil and look for any metal shavings. Maybe you got really lucky and the bearings are not too damaged.
I know, this is not what you want to hear, but if that pump gear came off and the oil pressure dorpped to zero. That would damage the main and rod bearings.
I would drain the oil and look for any metal shavings. Maybe you got really lucky and the bearings are not too damaged.
#39
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Since he was going slow at the time and caught it right away there's a good chance there's no internal damage. Definately change and inspect the oil but if you don't see anything you shouldn't worry.
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main/rod bearing damage is possible, but IMO probably pretty unlikely if he only idled it for a few seconds.
When you start your car on a really cold day you can go without pressure for that long.
When you start your car on a really cold day you can go without pressure for that long.
#41
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Measuring the oil pressure would be the only way to tell how much damage was done to the bearings.
From what i understand, he drove the car into a parkling lot without any oil pressure. After that, the engine was started again for a few sec. I really hope the bearings are not too damaged.
From what i understand, he drove the car into a parkling lot without any oil pressure. After that, the engine was started again for a few sec. I really hope the bearings are not too damaged.
#44
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Originally Posted by bigs
Everything?! ![ooops](https://rennlist.com/forums/graemlins/icon501.gif)
![ooops](https://rennlist.com/forums/graemlins/icon501.gif)
ever hear of a two-peckered billy goat?
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Dave, bad luck in some sense, but you must have a horse shoe up your *** to have pulled off the restart stunt and not fubar'd the engine totally....
Take pictures of the oil pump as you get to it......each by each, so we can see what the damage looks like at the various stages of dissasembly.
#45
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Originally Posted by Gretch
Take pictures of the oil pump as you get to it......each by each, so we can see what the damage looks like at the various stages of dissasembly.
Dave-
Make sure the pics are in Hi-Res!
![evilgrin](https://rennlist.com/forums/graemlins/evilgrin.gif)
Here's to hoping for the best -
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