Speedometer calibration ???
Thread Starter
Junior Member
Joined: Jun 2007
Posts: 13
Likes: 0
Car: 85 iroc original owner 24,000 miles
Engine: 305 tpi
Speedometer calibration ???
I have a mechanical speedometer from a 89 IROC that I am trying to calibrate. It's reading about 11 mph slow, It appears that there is a window on the back of the housing that you use as a timing window. There are some counter weights in there also. Am I on the right track? Any suggestions would be appreciated.
Thank's
Thank's
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Speedometer calibration ???
I have a mechanical speedometer from a 89 IROC that I am trying to calibrate. It's reading about 11 mph slow, It appears that there is a window on the back of the housing that you use as a timing window. There are some counter weights in there also. Am I on the right track? Any suggestions would be appreciated.
https://www.thirdgen.org/forums/inte...eedo-woes.html
JamesC
Thread Starter
Junior Member
Joined: Jun 2007
Posts: 13
Likes: 0
Car: 85 iroc original owner 24,000 miles
Engine: 305 tpi
Re: Speedometer calibration ???
The speedometer worked fine until my son removed the needle. I think it's just a matter of getting the counter weights in time with the needle.
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Thread
Thread Starter
Forum
Replies
Last Post
Elephantismo
Electronics
14
Feb 13, 2019 12:51 AM
1990, 85, 86, 89, calabration, calibration, camaro, camero, firebird, gm, mechanical, recalibration, speed, speedo, speedometer, t5, testing, thirdgen
