T-10 Issues

[Jerry L.]

I have a 63 t-10 that when in gear, engine running, and clutch depressed, it lets out a terrible rattling/grinding noise. If when coming to a stop and depressing the clutch and pulling it out of gear into neutral, there is no noise. Any ideas as to the culprit?
Jerry Louer #2466

[Harry S.]

Re: T-10 Issues

Throw-out bearing would be my first guess.

[Jerry L.]

Re: T-10 Issues

Thanks. I'll check that out.

[Jim L.]

Re: T-10 Issues

Throw-out bearing would be my first guess.

Since the noise stops when he pulls the T10 into neutral, the first suspect I think of is the T10 itself, not the TO bearing.

A lifetime ago, when the T10 in my '63 reached the point of being thoroughly worn out, it would grind and moan and just make awful noises. Rebuilding it cured all its ills.

[Edward J.]

Re: T-10 Issues

Jerry, when sitting still in neutral and clutch depressed the transmission input shaft is dis-engaged,(not spinning) the only thing moving is the the throw out bearing, 63 transmission retainer has a aluminum retainer that is known to wear and break this will make one heck of a racket when this happens. Either way it’s looks like you are going to pull transmission to inspected for the problem. If it was my car and the transmission has no history of a rebuild it would be wise to have this done at the same time, and if the clutch assy. Has not been done, replace as well. Also if you do find the retainer is broken or not they make a retainer of cast iron, so much smoother operation.

[Jerry L.]

Re: T-10 Issues

Thanks for that information.

[Frank D.]

Re: T-10 Issues

And I would add that you should stop driving the car until the issue is addressed.
Ask me how I know

[Jerry L.]

Re: T-10 Issues

Haven't been. Thanks.

[Skip N.]

Re: T-10 Issues

Recently there have been problems with NEW/Replacement Dorman 'Brass' Pilot Bearings
- original were REAL Brass
- NEW/Replacement Dorman is some type of Powdered Metal (easy to check as REAL Brass is not magnetic)

- this Powered Metal style does NOT have good 'bearing qualities'
- LOTS of weird interactions as the Input Shaft is sticking / slipping in that NEW Powdered Metal
(could be why NO NOISE when the input shaft is not slipping - example clutch out in neutral)

- It has become VERY difficult to find REAL Brass Pilot Bearing
- I don't like the NEEDLE Brg designs , BUT might be the only alternative

[Edward J.]

Re: T-10 Issues

Skip, The last clutch polit I brought was a national bearing it was bronze I believe.if a magnet is attracted to the bearing throw it away.I like to coat the new pilot brg. With a thin coat of synth. grease.also the smooth part of the input shaft.

[Gary B.]

Re: T-10 Issues

Skip,

I searched for a real Oil-Lite, bronze pilot bushing this past summer. After buying several bushings (from Luk and from Dorman) that were magnetic, and therefore not the correct bronze. I found one made by National Bearings, part number PB-656-HD, that is the real deal. Other people on the DB have tracked down the same bushing. It’s available at O’Reilly’s and other vendors (including Amazon), so not difficult to find, once you know what to look for and where to get it.

Gary

[E B.]

[Joe L.]

Re: T-10 Issues

Recently there have been problems with NEW/Replacement Dorman 'Brass' Pilot Bearings
- original were REAL Brass
- NEW/Replacement Dorman is some type of Powdered Metal (easy to check as REAL Brass is not magnetic)

- this Powered Metal style does NOT have good 'bearing qualities'
- LOTS of weird interactions as the Input Shaft is sticking / slipping in that NEW Powdered Metal
(could be why NO NOISE when the input shaft is not slipping - example clutch out in neutral)

- It has become VERY difficult to find REAL Brass Pilot Bearing
- I don't like the NEEDLE Brg designs , BUT might be the only alternative

Skip-----

The original pilot bushings were not brass. They were oilite bronze.

[Skip N.]

Re: T-10 Issues

Thanks for the National Bearing PN

I heard of only ONE noise problem with magnetic bushing

- have had good luck with the LUK kits ; that probably had the magnetic bushing (LUK typically does kit testing)
- therefore , it seems to be an inconsistant problem with noise caused by magnetic bushing (not quick failures??)
- maybe more sensitive to clearances??? OR sensitive to grease type??

I would be interested to hear any recent experiences with magnetic bushing???
-PRO or Con ; would like to understand WHAT the issue is
- NOT a lot of speed or load on this bushing
- Maybe excessive riding of the clutch / Cruising causes this noise over time??

I am curious how many miles on the bushing from the ORIGINAL Poster???

[Skip N.]

Re: T-10 Issues

Got it!

Key is IF it is magnetic - IF SO then it is some type of powdered metal that is magnetic