Factory Gauge Readings - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BROWN 70 · 08-14-2010, 08:38 PM

Hi Guys, new here, just a question about the factory oil pressure gauge in my 70 gmc. it is a mechanical gauge, but im not sure of the indication lines. does it indicate 15,30,45 or 20,40,60? or something else? i know silly question but i,ve never known. LOL thanks for any replys, BROWN 70

**too much stuff** · 08-14-2010, 08:45 PM

60 pound gauge unless from a c-40 or bigger truck. Than it COULD be an 80 pound. (depending on engine application)

71swb4x4 · 08-14-2010, 09:51 PM

Of course after 40 years, who knows how accurate it even is. Should be close enough for most people's needs though.

chevychompers · 08-14-2010, 09:56 PM

I have a 70 chevy 3/4 ton and it is stamped on the gauge 80 lbs. 350 engine.

**too much stuff** · 08-14-2010, 10:14 PM

Quote:

Originally Posted by chevychompers

I have a 70 chevy 3/4 ton and it is stamped on the gauge 80 lbs. 350 engine.

I would guess it was changed out at some point. Alot can happen in 40 years. I have seen alot of clusters over the years and never seen an original with an 80# gauge in the 1/2 -1 ton series...

BROWN 70 · 08-15-2010, 08:21 AM

Thanks for the replys guys. so do you guys think it is stamped on the back of the gauge? i,ll look. BROWN 70

**too much stuff** · 08-15-2010, 10:15 AM

It should be on the front of the gauge down low. You will probably have to pull the gauge to read it.

08-14-2010, 08:38 PM	#1
BROWN 70 Registered User Join Date: Aug 2010 Location: central oregon Posts: 159	Factory Gauge Readings Hi Guys, new here, just a question about the factory oil pressure gauge in my 70 gmc. it is a mechanical gauge, but im not sure of the indication lines. does it indicate 15,30,45 or 20,40,60? or something else? i know silly question but i,ve never known. LOL thanks for any replys, BROWN 70

08-14-2010, 08:45 PM	#2
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 13,790	Re: Factory Gauge Readings 60 pound gauge unless from a c-40 or bigger truck. Than it COULD be an 80 pound. (depending on engine application) __________________ 67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto

08-14-2010, 09:51 PM	#3
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: Factory Gauge Readings Of course after 40 years, who knows how accurate it even is. Should be close enough for most people's needs though. __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

08-14-2010, 09:56 PM	#4
chevychompers Registered User Join Date: Aug 2010 Location: Piedmont Triad, NC Posts: 17	Re: Factory Gauge Readings I have a 70 chevy 3/4 ton and it is stamped on the gauge 80 lbs. 350 engine.

08-15-2010, 08:21 AM	#6
BROWN 70 Registered User Join Date: Aug 2010 Location: central oregon Posts: 159	Re: Factory Gauge Readings Thanks for the replys guys. so do you guys think it is stamped on the back of the gauge? i,ll look. BROWN 70

08-15-2010, 10:15 AM	#7
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 13,790	Re: Factory Gauge Readings It should be on the front of the gauge down low. You will probably have to pull the gauge to read it. __________________ 67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.