PDA

View Full Version : TR6 Singing



davjac889
11-11-2013, 06:04 PM
Hello All,
Anybody know what would make a differential hum or sing?
It is very noticeable and annoying.
Other than that car runs great.
Thanks.
Bill '73 TR6

NutmegCT
11-11-2013, 06:20 PM
Without actually hearing the noise, I'd guess worn ring and pinion gears if it occurs when accelerating. If it's only when decelerating, probably bad pinion bearing.

Tom

Gliderman8
11-11-2013, 08:20 PM
I assume you checked the fluid.

TR3driver
11-11-2013, 08:28 PM
In addition to worn gears, could be improper setup, or mismatched gears. From what I've heard, many freshly rebuilt diffs whine enough to be annoying. Some have gone as far as saying "They all do that", but I don't believe it.

davjac889
11-11-2013, 09:15 PM
Should I worry about breaking down? Anytime soon? Thanks.

Andrew Mace
11-11-2013, 11:13 PM
If you have enough oil in it (hopefully it never actually went dry!) and keep it in there, you have a pretty decent chance of living with the hum/whine for years to come!

davjac889
11-12-2013, 07:44 AM
Thank you. I do keep plenty of oil in it. I'm relieved.

sail
11-12-2013, 07:58 AM
what would make a differential hum or sing?Bill '73 TR6

It could just be very happy.

NutmegCT
11-12-2013, 08:01 AM
It could just be very happy.

It has an owner who cares about it!

:grouphug:

BobbyD
11-16-2013, 09:09 AM
The singing differential is one of the reasons Richard Good designed the kit for installing a Nissan diff in a TR6.... they really are quieter https://tr6.danielsonfamily.org/DiffMain.htm