Dennis
63 corvette tachometer replacement
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Joined: Aug 2010
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63 corvette tachometer replacement
My tachometer failed last week and I obtained a new cable.
Removal from the distributer was a piece of cake but the removal
from the tack itself is something else. it seems that the cable goes
in a channel and attaches to the tach but getting your fingers in there is something else. Is there a trick to getting that end of the cable off the tach and attaching the new one?
Removal from the distributer was a piece of cake but the removal
from the tack itself is something else. it seems that the cable goes
in a channel and attaches to the tach but getting your fingers in there is something else. Is there a trick to getting that end of the cable off the tach and attaching the new one?
Melting Slicks
Joined: Apr 2010
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You didn’t say how you determined it was just the cable?
Assuming it’s the cable, I would try going at it like you’re doing with a small pair of piers or channel locks. If that doesn’t work, next best is to replace the ¼-20 cluster screws with 6 in bolts like described in JohnZ’s article below, and slide the cluster out a few inches.
http://www.lbfun.com/warehouse/tech_...ster%20pt1.pdf
Assuming it’s the cable, I would try going at it like you’re doing with a small pair of piers or channel locks. If that doesn’t work, next best is to replace the ¼-20 cluster screws with 6 in bolts like described in JohnZ’s article below, and slide the cluster out a few inches.
http://www.lbfun.com/warehouse/tech_...ster%20pt1.pdf
Thread Starter
Instructor
Joined: Aug 2010
Posts: 205
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You didn’t say how you determined it was just the cable?
Assuming it’s the cable, I would try going at it like you’re doing with a small pair of piers or channel locks. If that doesn’t work, next best is to replace the ¼-20 cluster screws with 6 in bolts like described in JohnZ’s article below, and slide the cluster out a few inches.
http://www.lbfun.com/warehouse/tech_...ster%20pt1.pdf
Assuming it’s the cable, I would try going at it like you’re doing with a small pair of piers or channel locks. If that doesn’t work, next best is to replace the ¼-20 cluster screws with 6 in bolts like described in JohnZ’s article below, and slide the cluster out a few inches.
http://www.lbfun.com/warehouse/tech_...ster%20pt1.pdf
Thread Starter
Instructor
Joined: Aug 2010
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I finally got the tachometer cable attached to the tack and dist. Problem, no response
from the tachometer with the engine running. give it gas and no movement. I removed the cable from the dist. and re installed twice but no difference. Outside of getting the
cable removed and reinstalled on the tach? Any other suggestions?
from the tachometer with the engine running. give it gas and no movement. I removed the cable from the dist. and re installed twice but no difference. Outside of getting the
cable removed and reinstalled on the tach? Any other suggestions?
Le Mans Master
Joined: Jan 2007
Posts: 5,996
Likes: 1,502
From: Prescott Arizona
Maybe I missed it but have you removed the large brass fitting on the distributor to check the small cross-gear condition? As Mike67nv mentioned, how do you know the cable is the culprit? I've had the cross gears get stripped due to too much movement/clearance and it results in no tach reading. In one of those instances, when the cross gear (my description) got stripped, the shredded teeth dropped down and got caught between the main shaft and the lower brass bushing and it locked up and spun the distributor and that put me on the side of the road.
Mike T - Prescott AZ
Mike T - Prescott AZ
Last edited by Vet65te; Jul 21, 2014 at 08:35 PM.
Team Owner
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From: Washington Michigan
I finally got the tachometer cable attached to the tack and dist. Problem, no response
from the tachometer with the engine running. give it gas and no movement. I removed the cable from the dist. and re installed twice but no difference. Outside of getting the
cable removed and reinstalled on the tach? Any other suggestions?
from the tachometer with the engine running. give it gas and no movement. I removed the cable from the dist. and re installed twice but no difference. Outside of getting the
cable removed and reinstalled on the tach? Any other suggestions?
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to see if I can see if the gears inside the distributer are turning
while I am at it.
Le Mans Master
Joined: Feb 2008
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From: NJ Hockey beer league
If the Tach still does not move, you will have to pull the cluster and remove the Tach itself. Likely you have a stripped / worn internal gear
which is a common problem. If you have to go that route, it's not that bad a job and it would give you the opportunity to do lot's of other stuff while it's out.
Pilot Dan
which is a common problem. If you have to go that route, it's not that bad a job and it would give you the opportunity to do lot's of other stuff while it's out.
Pilot Dan
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Army
If the Tach still does not move, you will have to pull the cluster and remove the Tach itself. Likely you have a stripped / worn internal gear
which is a common problem. If you have to go that route, it's not that bad a job and it would give you the opportunity to do lot's of other stuff while it's out. Pilot Dan
which is a common problem. If you have to go that route, it's not that bad a job and it would give you the opportunity to do lot's of other stuff while it's out.
Pilot Dan
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no results. It was on low speed but the cable turns but the needle
doesn't. Can I moved the instrument panel forward an inch or two without removing the steering column?
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I tried using a dremel drill to turn the cable at the distributer end but
no results. It was on low speed but the cable turns but the needle
doesn't. Can I moved the instrument panel forward an inch or two without removing the steering column?
no results. It was on low speed but the cable turns but the needle
doesn't. Can I moved the instrument panel forward an inch or two without removing the steering column?
Melting Slicks
Joined: Mar 2006
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From: Livin' large and havin' fun in wonderful Oklahoma