One more thing to the list Today when I drove this car to the 2nd mechanic The speedo would not go over 30 mph when I was going at least 50. This never has happened before worked good when I brought it to the first Mechanic the miles rack up but not sure if they are correct, speed is about cut in half,it was very cold this am about 10 F if that has anything to do with this??
Normally, you could check the cable by disconnecting it at the tranny, and putting the cable into your reversible drill, then spinning the cable (in reverse) to see if you can get the speedo to register (or register higher than 30mph). The cable could be slipping in the gear that it's attached to at the tranny, or in its connection behind the dash. This might actually cause a problem, as the vehicle speed sensor uses the rotation of the cable to indicate to the ECU how fast you are going.
if grease PO(mad) migrates to the needle side(rear) the needle will read way low.
they make special grease for speedo;s (inside) that is non migratory grease.
if the PO (mad) stuffed tons of chassis grease at the top of cable. (more is better , many think??)
it will (may) go in the speedo and mess it big time. see it, many times, and cured it by clean and re-grease it.
bad speedo.
i have a speedo page with all part , its very complex,. all the variants.
i will not do the full nelson.
ok,
speedo slow, dah? us drill to test it end to end/ (cable pulled at xfr case)
use drill (slow) at actual speedo, 2 tests, answer true.
i rebuild 3 to 1 on many classics. not just zuks. so ...
1: the grease deal.
2: the need has a bearing, (bush) and if beat to death (as most are) it wobbes and reads low, as it gets worse the mag coupling crashes, and makes horrid trashing sound. at 100 to 150k miles.
3: the square ends of either cable ends are not longer, yes, square but rounded, fail.
4: fail 4 is cable snapped end to end but kissing, slow speed. on end. fail.
5: the 2 plastic gears in the xfr case, are bad 1 or all.
Thanks but nobody has greased the thing as long as Ive had it it just stopped working or I should say stopped working right yesterday. unless the first mech. did something to make it stop working properly when he was working on the TB problem? they also installed a aftermarket water temp and amp Guage for me would there maybe be somthing they touched doing the guages cause the speedo to start reading half speed?
These are old cars, and often have more than one problem....the speedo cable would route from behind the speedometer toward the passenger side glove box, then through the firewall there and back to the tranny. I suppose your mechanic could possibly have grabbed it in some way, working on the tb. Or maybe he decided to give you a gift, for taking the car away....????
PO(mad) is not you, !!! it never is.... by edict. LOL.
did you buy car new?, and do all service work yourself? for 20 odd years?
we have like half the problems on this forum posted
by POs, using wrong parts, or wrong ways.
and 1/2 the cars (major source ) stats more that 1/2 of old cars get now service at
all,. so PO(mad) is well deserved.
the grease in is the odometer section is is special so it don't migrate to the needle section. the worst case is hot days.
id skip the amp gauge for a volt gage. (pure opinion, in 1960 you'd see me doing same thing..)
most installed amp gauge , result in a future fire, it's a fact.
the the volts is way more important. to see state of charge and change performance.
like new cars have, ever wonder why?
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
Linear Mode
