Tranny noise

wqqdster · Post by **wqqdster** » Fri May 29, 2015 9:49 pm

Hi!

The trans in my wife's 93K mile '78 (she bought it new) has gradually been making more noise. In neutral it sounds like a bad bearing, first gear is very noisy (whining), second is pretty quiet, third is noisy, fourth is silent and fifth is a little quieter than first and third. There isn't any vibration coming through the shifter.

Anybody want to take a guess as to which bearing(s) are bad?

Thanks,
Gary O

redcars · Post by **redcars** » Sat May 30, 2015 10:29 am

You probably have bad bearing on the counter shaft, but until it is taken apart and inspected you are just guessing.

4uall · Post by **4uall** » Sat May 30, 2015 4:39 pm

"Sorry, I'll try to make less noise"

Nanonevol · Post by **Nanonevol** » Sat May 30, 2015 6:24 pm

Oh my God, Jay, you are hysterical! Keep it coming, as if you could stop!

4uall · Post by **4uall** » Sat May 30, 2015 8:38 pm

wqqdster · Post by **wqqdster** » Tue Jun 02, 2015 9:21 pm

Obviously, I need to choose my words more carefully. Thanks for the guidance.

Gary O

ORFORD2004 · Post by **ORFORD2004** » Tue Jun 02, 2015 10:25 pm

Why don't you change them all? With the synchro, the springs and the forks. Then you are shure that you are good for long time.
http://www.ebay.com/itm/Fiat-124-Coupe- ... a7&vxp=mtr

wqqdster · Post by **wqqdster** » Wed Jun 03, 2015 11:37 pm

That's the most obvious solution.... thanks for the link.

wqqdster · Post by **wqqdster** » Tue Jan 12, 2016 1:00 am

I got the trans out and spent some time with my stethoscope (sp?) spinning the shafts. The input shaft bearing had some play and was the easiest to get to so that's the one I changed. Took some fancy gear puller fabricating. The three piece bearing was replaced with a one piece.

I got everything back together and the bearing noise in neutral is gone!! Bazinga!! I'll have it back on the road this week and look forward to seeing if the rest of the gear noise it gone also.

Thanks for the help and the laughs!

ORFORD2004 · Post by **ORFORD2004** » Tue Jan 12, 2016 10:26 pm

It's normal to have no noise on neutral if you change the input shaft bearing. But I don't think it will change anything on gears.

wqqdster · Post by **wqqdster** » Thu Jan 14, 2016 9:53 pm

The noise in neutral was so loud I was assuming that it may also be causing noise when in gear. "Gear" noise probably wasn't the best term to use.....

wqqdster · Post by **wqqdster** » Sat Apr 09, 2016 12:28 am

I finally got all of my other chores done and was able to finish the work on our Spider. The transmission is silent now when driving with a very faint whine in third gear but I have to work to hear it. Just a couple more things to fix and it'll be back to being a real car again.

Gary O

Tranny noise

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