C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Aug 14, 2007 | 03:20 PM
  #21  
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Originally Posted by Pete K
Yes. Or upgrade the oil pump shaft to a steel sleeved version.
My local parts store had the melling unit. Peace of mind
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Old Aug 14, 2007 | 03:48 PM
  #22  
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Do you guys think that the oil pump drive shaft could have slipped out of the distributor tang or does this just sound stupid?
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Old Aug 14, 2007 | 03:53 PM
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Pull the distributor and make a gadget like I posted and spin that thing up.That will show you if you have oil pressure or not.I'm not even going to guess at what is the problem if you have none,it could be ten different things.Neither does it matter it's only two years old,it might as well be two days.With the distributor out it's easy to connect an oil pressure gauge directly to the oil pressure fitting to verify it's not the electric gauges or the senders playing up.If you have wiped the bearings that badly(zero pressure) it should rattle like hell.Good luck.
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Old Aug 15, 2007 | 01:07 PM
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Allright so it goes like this I put the car back together fire it up and poof everything is back to normal no funky noise oil pressure is back to normal like nothing ever happend. So I have a theory I just replaced the pickup coil in my distributor about 3 days before this incident. Is it at all possible that I dident tighten the distributor retaining nut enough as to where it would pop up enough to lose contact with the oil pump driveshaft but still maintain contact with the cam gear causing no change in how the car ran as far as the distributor maintaing its relative posistion just no drive of the oil pump. Is this possible or have I gone completly crazy.
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Old Aug 15, 2007 | 07:59 PM
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I love this forum----same thing happened to me last night here at work---gauge went to zero oil pressure---read lots on this site last night and figured---I had no noisey valves--lots of oil thru the oil fill hole on valve covers and no overheating problem ---safe to drive home 23 miles!! Motor was rebuild 2 years ago with a new oil pump---turns out the wiring was loose and had to resolder connections--then went to 80 psi which will get me to both Woodward this weekend and Carlisle next weekend in Pennsylvania!! Will need to swap out --but by gum--that "Zero" oil pressure scares the bejezurs right out of you!!! Thanx guys!!!!
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Old Aug 15, 2007 | 10:39 PM
  #26  
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Originally Posted by black panther
Allright so it goes like this I put the car back together fire it up and poof everything is back to normal no funky noise oil pressure is back to normal like nothing ever happend. So I have a theory I just replaced the pickup coil in my distributor about 3 days before this incident. Is it at all possible that I dident tighten the distributor retaining nut enough as to where it would pop up enough to lose contact with the oil pump driveshaft but still maintain contact with the cam gear causing no change in how the car ran as far as the distributor maintaing its relative posistion just no drive of the oil pump. Is this possible or have I gone completly crazy.
No I think you are completely sane but there's a good possibility of that scenario.The distributor drive is not much more than 1/4 inch long and I don't think that if the whole unit rises it would throw off the timing so you could disengage the drive and the engine would still run albeit with no oil pressure.You probable answered your own question.
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Old Aug 16, 2007 | 11:55 AM
  #27  
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yay I fix one thing and what do you know something else is wrong, for some reason my car is only getting 7mpg and it seems to be running very sluggish it dosent sound bad at idle but when i get on it, it sounds like crap.
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