No oil pressure - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

5150 · 03-18-2014, 07:31 PM

It looks tan, but I'm sure it's the one that came with the pan. Which means it's probably the green one. So is my problem not the o-ring? The o-ring looks damaged. Also it appears there is something else rubber in the oil pump. Could it be the old o-ring got lodged in the oil pump when I yanked out the truck pan and I've had two o-rings on this entire time. Which obviously would not allow it to get oil pressure.

Is there anything else supposed to be at the pickup to oil pump connection besides the o-ring on the pickup?

5150 · 03-18-2014, 08:19 PM

Ok, the o ring on the left is the one up above. It looks red when you look close. The o ring on the right was what was up inside the oil pump.

BR3W CITY · 03-18-2014, 11:59 PM

So you had the truck seal, on the fbody pickup STACKED onto another seal?

Well, either or both is the problem. The stacked o-ring thing was an old ls1 trick but not really a proven good idea.

5150 · 03-19-2014, 07:51 AM

No, I had the green F-body seal on the pickup tube and when I took the old truck pickup tube out the old black o-ring was still up in there and I didn't see it. I can't find the green oring anywhere. The parts stores say it's the red one.

BR3W CITY · 03-19-2014, 01:54 PM

If you are in fact using the Fbody oil pan and tube, then its the First Design (blue) seal.

The red seal is pretty much for everything else except 'vette.

5150 · 03-19-2014, 02:24 PM

Do you have the part number for the blue o ring?

**Hart_Rod** · 03-20-2014, 09:26 AM

Quote:

Originally Posted by 5150

Do you have the part number for the blue o ring?

http://www.summitracing.com/parts/nal-12557752

03-18-2014, 07:31 PM	#26
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Re: No oil pressure It looks tan, but I'm sure it's the one that came with the pan. Which means it's probably the green one. So is my problem not the o-ring? The o-ring looks damaged. Also it appears there is something else rubber in the oil pump. Could it be the old o-ring got lodged in the oil pump when I yanked out the truck pan and I've had two o-rings on this entire time. Which obviously would not allow it to get oil pressure. Is there anything else supposed to be at the pickup to oil pump connection besides the o-ring on the pickup? __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4

03-18-2014, 08:19 PM	#27
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Re: No oil pressure Ok, the o ring on the left is the one up above. It looks red when you look close. The o ring on the right was what was up inside the oil pump. __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4

03-18-2014, 11:59 PM	#28
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: No oil pressure So you had the truck seal, on the fbody pickup STACKED onto another seal? Well, either or both is the problem. The stacked o-ring thing was an old ls1 trick but not really a proven good idea. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

03-19-2014, 07:51 AM	#29
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Re: No oil pressure No, I had the green F-body seal on the pickup tube and when I took the old truck pickup tube out the old black o-ring was still up in there and I didn't see it. I can't find the green oring anywhere. The parts stores say it's the red one. __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4

03-19-2014, 01:54 PM	#30
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: No oil pressure If you are in fact using the Fbody oil pan and tube, then its the First Design (blue) seal. The red seal is pretty much for everything else except 'vette. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

03-19-2014, 02:24 PM	#31
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Re: No oil pressure Do you have the part number for the blue o ring? __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4



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