Fixing a slow speedo in the '74

[flaatr]

My speedo is reading about 25% low (reads 60 when I'm doing 80)... any tips/procedures on how to correct this?

-Raffi

[Tifosi]

You gots the right size tires on there?

Any chance that you ended up with the wrong transmission drive gear after a swap/rebuild?

[Farace]

Willie R.'s page may be helpful, although there seem to be some broken image links since the last time I looked at it:

http://www.veloce.se/MECH3.HTM

I haven't tried the procedure myself, though I've been meaning to. My speedo reads about 10% fast.

[RKMspider74]

I see that you are in Southern Ca. This place in Riverside is good: United Speedometer Service. Sales, repair & calibration of instruments and gauges. Featuring Encore Gauges, VDO Performance Instruments, Stewart Warner Instruments, Rostra Cruise Control

[h00kem]

Quote:

Originally Posted by RKMspider74 I see that you are in Southern Ca. This place in Riverside is good: United Speedometer Service. Sales, repair & calibration of instruments and gauges. Featuring Encore Gauges, VDO Performance Instruments, Stewart Warner Instruments, Rostra Cruise Control

[Tifosi]

Quote:

Originally Posted by Farace Willie R.'s page

[Bob Sacamano]

My experience with 2L Spider gauges (I've got several sets) is that they're not adjustable in the way Willie describes. I've completely disassembles both speedo's and tach's, but just don;t find that adjustment screw.

[flaatr]

Quote:

Originally Posted by RKMspider74 I see that you are in Southern Ca. This place in Riverside is good: United Speedometer Service. Sales, repair & calibration of instruments and gauges. Featuring Encore Gauges, VDO Performance Instruments, Stewart Warner Instruments, Rostra Cruise Control

[flaatr]

Quote:

Originally Posted by Bob Sacamano My experience with 2L Spider gauges (I've got several sets) is that they're not adjustable in the way Willie describes. I've completely disassembles both speedo's and tach's, but just don;t find that adjustment screw.