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12-02-2018, 05:43 PM
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#1 |
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Senior Member
 
Join Date: Jul 2018
Location: Bethany Connecticut
Posts: 370
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Hole in Factory Tachometer?
Hi
I am new to the 67-72 Chevy forum, but a long time owner of multiple of these trucks. I am installing a factory tach in my 1970 longbed, I noticed this hole on the top of the tach housing. Before I install it I want to make sure this hole is not for a light or something else. Any info would be much appreciated! Trip |
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12-04-2018, 05:47 AM
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#2 |
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Registered User
Join Date: Apr 2015
Location: Ayr Ontario
Posts: 1,122
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Re: Hole in Factory Tachometer?
It looks like the calibration adjustment
__________________
Do it, Do it right, Do it right the first time |
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12-04-2018, 09:19 AM
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#3 | |
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Roadtrip!
Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,790
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Re: Hole in Factory Tachometer?
Quote:
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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 |
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12-04-2018, 10:32 AM
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#4 |
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Senior Member
Join Date: Jul 2018
Location: Bethany Connecticut
Posts: 370
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Re: Hole in Factory Tachometer?
Thanks Metaldaoc!
Is that a calibration hole? Trip |
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12-04-2018, 05:25 PM
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#5 |
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Registered User
Join Date: Apr 2015
Location: Ayr Ontario
Posts: 1,122
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Re: Hole in Factory Tachometer?
My timing light has an accurate tach so I adjust that screw to match my vehicle tach to my timing light.
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Do it, Do it right, Do it right the first time |
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