speedometer needle at wrong position?
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 34
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From: Austria
Car: 1989 Pontiac Trans Am
Engine: 5.0 TBI
speedometer needle at wrong position?
Hello,
i disassembled my speedometer for cleaning (89' Trans Am).
i put off the needle from the axle but did not notice the position of the needle on the axle and the tacho-plate.
now the needle shows approximately 30 km/h too low.
are there any markers to adjust the needle in the right way?
Hope i illustrated it understandable and you can help me out of this mess...
Thanks!
best regards, Andreas
i disassembled my speedometer for cleaning (89' Trans Am).
i put off the needle from the axle but did not notice the position of the needle on the axle and the tacho-plate.
now the needle shows approximately 30 km/h too low.
are there any markers to adjust the needle in the right way?
Hope i illustrated it understandable and you can help me out of this mess...
Thanks!
best regards, Andreas
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Speed Reading
You can use GPS.
Using GPS and driving at a steady speed, (higher speeds will give you better resolution) let’s say 80MPH, use a Sharpie to mark 12:00 on the axel.
Then when you return home you can turn the post by hand to 12:00 and install the needle.
There are other ways to accomplish this, for example using a signal generator, which we can elaborate if requested.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Don’t Ask Me Why I Don’t Get Dizzy After Going In 400 Circles
.
Using GPS and driving at a steady speed, (higher speeds will give you better resolution) let’s say 80MPH, use a Sharpie to mark 12:00 on the axel.
Then when you return home you can turn the post by hand to 12:00 and install the needle.
There are other ways to accomplish this, for example using a signal generator, which we can elaborate if requested.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Don’t Ask Me Why I Don’t Get Dizzy After Going In 400 Circles
.
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 34
Likes: 0
From: Austria
Car: 1989 Pontiac Trans Am
Engine: 5.0 TBI
Re: speedometer needle at wrong position?
i do not understand 12:00 on the axle...
for example:
i drive with steady speed of 80mph on the gps signal. the speedometer-needle shows lets say 55mph.
then i dissassemble the cluster, turn the needle to 55mph, hold the mechanic (magnet etc...) behind the tacho-plate on this position and turn the needle up to 80mph and fix it on the axle?
is that the right procedure?
andreas
for example:
i drive with steady speed of 80mph on the gps signal. the speedometer-needle shows lets say 55mph.
then i dissassemble the cluster, turn the needle to 55mph, hold the mechanic (magnet etc...) behind the tacho-plate on this position and turn the needle up to 80mph and fix it on the axle?
is that the right procedure?
andreas
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
What Time Is It ?
12:00 refers to the highest point on the axel.
Also the way you mentioned in your second post will also work.
If when traveling at 80MPH VIA GPS, the speedometer shows only 55MPH, you now know how much you must move the needle.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Don’t Ask Me Why I Don’t Get Dizzy After Going In 400 Circles
.
Also the way you mentioned in your second post will also work.
If when traveling at 80MPH VIA GPS, the speedometer shows only 55MPH, you now know how much you must move the needle.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Don’t Ask Me Why I Don’t Get Dizzy After Going In 400 Circles
.
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 34
Likes: 0
From: Austria
Car: 1989 Pontiac Trans Am
Engine: 5.0 TBI
Re: speedometer needle at wrong position?
ok i will try it asap.
i hope the needle will return to default value after positioning the needle...
i will inform you about that.
thanks in advance!
andreas
i hope the needle will return to default value after positioning the needle...
i will inform you about that.
thanks in advance!
andreas
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