WA Mech tach pics for PT'S 70 CST - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Livrat · 12-17-2011, 12:56 PM

NOS tach pictures

PT'S 70 CST · 12-17-2011, 01:20 PM

The one that I have is in very similar cond. Does your tach needle curl up at the tip.

PT

**too much stuff** · 12-17-2011, 01:26 PM

Just to add some info for you guys since there is some interest in the diesel tachs again here, all of the originals i have seen have a 3200 rpm redline if they have a vacuum gauge. If no vacuum, they have a 2800 redline. You will notice that this one and the one w314speed pictured are different redlines. I have never seen one with an air gauge.

Great looking setup mark!

Livrat · 12-17-2011, 01:27 PM

My needle is straight, it comes very close to the face at the tip, it looks exactly like a speedo needle.

**70shortfleet** · 12-17-2011, 01:27 PM

Quote:

Originally Posted by PT'S 70 CST

The one that I have is in very similar cond. Does your tach needle curl up at the tip.

PT

Paul the one I have is straight all the way across

Livrat · 12-17-2011, 01:33 PM

Quote:

Originally Posted by too much stuff

Just to add some info for you guys since there is some interest in the diesel tachs again here, all of the originals i have seen have a 3200 rpm redline if they have a vacuum gauge. If no vacuum, they have a 2800 redline. You will notice that this one and the one w314speed pictured are different redlines. I have never seen one with an air gauge.

Great looking setup mark!

Wow. I didn't catch that, I guess being rare and never had another one to compare side by side I did not know there were more than one version.

Eric, Darn you!! Now I have to go find the "correct" tach for my mech tach/vac cluster as i have the 2800 rpm version

PT'S 70 CST · 12-17-2011, 01:34 PM

Guys I worked 12's last night and am going to hit the bed. I have to pull 12's for three more nights. I will try and post a pic of this very odd needle that is slightly curled at the tip. It looks as if it was done to clear the tach face plate. I have had other diesel tachs and those needles were straight also. Eric this is the dash that you sold to member cpterav8r and I am trying to get it restored for him. It is the one that had the broken lens.

PT

**70shortfleet** · 12-17-2011, 01:45 PM

Quote:

Originally Posted by too much stuff

Just to add some info for you guys since there is some interest in the diesel tachs again here, all of the originals i have seen have a 3200 rpm redline if they have a vacuum gauge. If no vacuum, they have a 2800 redline. You will notice that this one and the one w314speed pictured are different redlines. I have never seen one with an air gauge.

Great looking setup mark!

Eric the one I have is a 2800 and has a vacuum gauge, looks just like the one Livrat has

**too much stuff** · 12-17-2011, 01:50 PM

Quote:

Originally Posted by 70shortfleet

Eric the one I have is a 2800 and has a vacuum gauge, looks just like the one Livrat has

As i say, the ones i have seen. I do not know if one is correct or not. I have had quite a few and seen others and that was just a pattern i noticed.
That is good info to show that it could come either way.
Now mark can forgive me...

Livrat · 12-17-2011, 01:56 PM

Whew!! your forgiven.. thanks Les!! I can rest easier,
Funny thing that all of a sudden mech tach info is popping up.. In all the years and as many trucks that have crossed my path I have never run across a diesel truck or tach and had to "build" this one

PT'S 70 CST · 12-22-2011, 08:13 PM

Here is a pic of the curled tip diesel tach needle. This is a factory perfect bend. Anyone ever seen one like this. There is no way anyone could have bent this themselves because it is a perfect bend.

PT

**70shortfleet** · 12-22-2011, 08:29 PM

Paul, that looks like the way they all should be because mine comes so close to hitting the edge of the tach face

PT'S 70 CST · 12-22-2011, 08:32 PM

I know it does look to be correct and it looks like that may be why they did it. I wonder if the factory used straight needles and had trouble with them then went to this needle instead. I have only had two other diesel tachs so I cannot remember what the needles were like on the others.

PT

PT'S 70 CST · 12-22-2011, 08:47 PM

Les I also wonder if this is why you see most of the diesel tach face plates bent at the screw holes like they are over torqued to gain clearance for the needle. Just about everyone that I know that has a diesel tach said the the face has bent marks at the mounting screw holes. The face plate to this tach is the same way, it has indention marks to.

PT

**70shortfleet** · 12-22-2011, 11:26 PM

Paul, my tach is not too bad as far as the over torquing and guess what I found at the salvage yard today! yes, another tach dash!! I couldn't believe it. Is anything for sell on this thread or did we get side trcked

Livrat · 12-22-2011, 11:41 PM

Les,
Great score!! No worries on sidetracking, it's all good info, there is nothing for sale on this thread, I just posted pictures for Paul of the 4k tach lens I had made up.

**Dieselwrencher** · 12-26-2011, 02:21 AM

Livrat, can or will you get more lenses made up? I'd like another 4k for mine as mine is kind of scuffed up. And my needle is not bent near the end and is a 3200 red line.

Livrat · 12-27-2011, 12:02 AM

PM sent

burnitg · 12-27-2011, 09:49 PM

I'm looking for a 4k lens as well.

Burnett

**Dieselwrencher** · 12-28-2011, 09:22 PM

Quote:

Originally Posted by Livrat

Les,
Great score!! No worries on sidetracking, it's all good info, there is nothing for sale on this thread, I just posted pictures for Paul of the 4k tach lens I had made up.

Were you still going to post the pic of the new lens you got made? I'm just curious to see a shiny one.

Livrat · 12-28-2011, 09:41 PM

Ryan,
See the picture in post #1, That's the lens I had made, Its already in the cluster

12-17-2011, 01:20 PM	#2
PT'S 70 CST "GO DAWGS" Join Date: Oct 2003 Location: Batesburg, SC. 29006 Posts: 5,410	Re: Mech tach pics for PT'S 70 CST The one that I have is in very similar cond. Does your tach needle curl up at the tip. PT __________________ 70 CST SWB 70 NOVA 93 Indy 500 Pace Truck (SOLD) 94 SILVERADO SWB 5/7 drop 2000 Silverado swb 2005 Nissan Altima 3.5 (Surprisingly very fast) 2004 GMC Yukon XL Denali BATESBURG, SC. 29006 29006 Some of my restorations http://www.snapfish.com/snapfish/thu...NAME=snapfish/ Restored Tach tins 8 cyl - 6 cyl http://67-72chevytrucks.com/vboard/s...d.php?t=518185 Contact info(Not my paypal address) DAWGSFAN227@YAHOO.COM God Bless Our Troops

12-17-2011, 01:26 PM	#3
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 13,717	Re: Mech tach pics for PT'S 70 CST Just to add some info for you guys since there is some interest in the diesel tachs again here, all of the originals i have seen have a 3200 rpm redline if they have a vacuum gauge. If no vacuum, they have a 2800 redline. You will notice that this one and the one w314speed pictured are different redlines. I have never seen one with an air gauge. Great looking setup mark! __________________ 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

12-17-2011, 01:27 PM	#4
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: Mech tach pics for PT'S 70 CST My needle is straight, it comes very close to the face at the tip, it looks exactly like a speedo needle.

12-17-2011, 01:34 PM	#7
PT'S 70 CST "GO DAWGS" Join Date: Oct 2003 Location: Batesburg, SC. 29006 Posts: 5,410	Re: Mech tach pics for PT'S 70 CST Guys I worked 12's last night and am going to hit the bed. I have to pull 12's for three more nights. I will try and post a pic of this very odd needle that is slightly curled at the tip. It looks as if it was done to clear the tach face plate. I have had other diesel tachs and those needles were straight also. Eric this is the dash that you sold to member cpterav8r and I am trying to get it restored for him. It is the one that had the broken lens. PT __________________ 70 CST SWB 70 NOVA 93 Indy 500 Pace Truck (SOLD) 94 SILVERADO SWB 5/7 drop 2000 Silverado swb 2005 Nissan Altima 3.5 (Surprisingly very fast) 2004 GMC Yukon XL Denali BATESBURG, SC. 29006 29006 Some of my restorations http://www.snapfish.com/snapfish/thu...NAME=snapfish/ Restored Tach tins 8 cyl - 6 cyl http://67-72chevytrucks.com/vboard/s...d.php?t=518185 Contact info(Not my paypal address) DAWGSFAN227@YAHOO.COM God Bless Our Troops

12-17-2011, 01:56 PM	#10
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: Mech tach pics for PT'S 70 CST Whew!! your forgiven.. thanks Les!! I can rest easier, Funny thing that all of a sudden mech tach info is popping up.. In all the years and as many trucks that have crossed my path I have never run across a diesel truck or tach and had to "build" this one

12-17-2011, 12:56 PM	#1
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Mech tach pics for PT'S 70 CST NOS tach pictures Attached Images

12-22-2011, 08:13 PM	#11
PT'S 70 CST "GO DAWGS" Join Date: Oct 2003 Location: Batesburg, SC. 29006 Posts: 5,410	Re: Mech tach pics for PT'S 70 CST Here is a pic of the curled tip diesel tach needle. This is a factory perfect bend. Anyone ever seen one like this. There is no way anyone could have bent this themselves because it is a perfect bend. PT Attached Images __________________ 70 CST SWB 70 NOVA 93 Indy 500 Pace Truck (SOLD) 94 SILVERADO SWB 5/7 drop 2000 Silverado swb 2005 Nissan Altima 3.5 (Surprisingly very fast) 2004 GMC Yukon XL Denali BATESBURG, SC. 29006 29006 Some of my restorations http://www.snapfish.com/snapfish/thu...NAME=snapfish/ Restored Tach tins 8 cyl - 6 cyl http://67-72chevytrucks.com/vboard/s...d.php?t=518185 Contact info(Not my paypal address) DAWGSFAN227@YAHOO.COM God Bless Our Troops Last edited by PT'S 70 CST; 12-22-2011 at 08:22 PM.

12-22-2011, 08:29 PM	#12
70shortfleet Senior Member Join Date: Apr 2010 Location: St.Peters, MO Posts: 2,226	Re: Mech tach pics for PT'S 70 CST Paul, that looks like the way they all should be because mine comes so close to hitting the edge of the tach face

12-22-2011, 08:32 PM	#13
PT'S 70 CST "GO DAWGS" Join Date: Oct 2003 Location: Batesburg, SC. 29006 Posts: 5,410	Re: Mech tach pics for PT'S 70 CST I know it does look to be correct and it looks like that may be why they did it. I wonder if the factory used straight needles and had trouble with them then went to this needle instead. I have only had two other diesel tachs so I cannot remember what the needles were like on the others. PT __________________ 70 CST SWB 70 NOVA 93 Indy 500 Pace Truck (SOLD) 94 SILVERADO SWB 5/7 drop 2000 Silverado swb 2005 Nissan Altima 3.5 (Surprisingly very fast) 2004 GMC Yukon XL Denali BATESBURG, SC. 29006 29006 Some of my restorations http://www.snapfish.com/snapfish/thu...NAME=snapfish/ Restored Tach tins 8 cyl - 6 cyl http://67-72chevytrucks.com/vboard/s...d.php?t=518185 Contact info(Not my paypal address) DAWGSFAN227@YAHOO.COM God Bless Our Troops

12-22-2011, 08:47 PM	#14
PT'S 70 CST "GO DAWGS" Join Date: Oct 2003 Location: Batesburg, SC. 29006 Posts: 5,410	Re: Mech tach pics for PT'S 70 CST Les I also wonder if this is why you see most of the diesel tach face plates bent at the screw holes like they are over torqued to gain clearance for the needle. Just about everyone that I know that has a diesel tach said the the face has bent marks at the mounting screw holes. The face plate to this tach is the same way, it has indention marks to. PT __________________ 70 CST SWB 70 NOVA 93 Indy 500 Pace Truck (SOLD) 94 SILVERADO SWB 5/7 drop 2000 Silverado swb 2005 Nissan Altima 3.5 (Surprisingly very fast) 2004 GMC Yukon XL Denali BATESBURG, SC. 29006 29006 Some of my restorations http://www.snapfish.com/snapfish/thu...NAME=snapfish/ Restored Tach tins 8 cyl - 6 cyl http://67-72chevytrucks.com/vboard/s...d.php?t=518185 Contact info(Not my paypal address) DAWGSFAN227@YAHOO.COM God Bless Our Troops

12-22-2011, 11:26 PM	#15
70shortfleet Senior Member Join Date: Apr 2010 Location: St.Peters, MO Posts: 2,226	Re: Mech tach pics for PT'S 70 CST Paul, my tach is not too bad as far as the over torquing and guess what I found at the salvage yard today! yes, another tach dash!! I couldn't believe it. Is anything for sell on this thread or did we get side trcked

12-22-2011, 11:41 PM	#16
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: Mech tach pics for PT'S 70 CST Les, Great score!! No worries on sidetracking, it's all good info, there is nothing for sale on this thread, I just posted pictures for Paul of the 4k tach lens I had made up.

12-26-2011, 02:21 AM	#17
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,140	Re: Mech tach pics for PT'S 70 CST Livrat, can or will you get more lenses made up? I'd like another 4k for mine as mine is kind of scuffed up. And my needle is not bent near the end and is a 3200 red line. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

12-27-2011, 12:02 AM	#18
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: Mech tach pics for PT'S 70 CST PM sent

12-27-2011, 09:49 PM	#19
burnitg Registered User Join Date: Nov 2009 Location: Black Hawk, CO Posts: 215	Re: Mech tach pics for PT'S 70 CST I'm looking for a 4k lens as well. Burnett



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12-28-2011, 09:41 PM	#21
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: Mech tach pics for PT'S 70 CST Ryan, See the picture in post #1, That's the lens I had made, Its already in the cluster

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