RE: IML: Good practice to resurface brake drums?

["ernie stepney" <estepney@xxxxxxxxx>]

No scoring, no runout! Leave 'em alone, they will work just fine, and
yes it is an industry wide practice mostly for CYA especially on disc
brakes. With hard to come by parts I like to leave as much material
there as I can. Hence no machining unless needed to correct a problem.

Ernie and The Black Bitc_!!

-----Original Message-----
From: mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of John Meyer
Sent: Friday, April 29, 2005 4:33 PM
To: mailing-list@xxxxxxxxxxxxxxxx
Subject: IML: Good practice to resurface brake drums?

I had my shop look at the brakes on my '65 and it's getting to be time 
for a new set of brake shoes and we noticed one leaky wheel cylinder.

The mechanics insisted that the drums should go to the machine shop for 
resurfacing. Not because they're out of round (that we can tell) or 
scored (that we can see), but because the drum we were looking at had a 
mirror-smooth shiny surface which he said was too smooth. I'm not sure 
if he meant just too smooth or that the first few thousanths had been 
hardened so the new linings wouldn't wear in properly.

I've had the brakes done on this car probably two or three times since 
I've had it an have always avoided having the drums turned in order to 
preserve their thickness. A measurement showed that this drum has 
enough material to turn.

At any rate, this is a very old-school shop that I've used for minor 
things and they have been good to my car. I just get the idea that 
drum-turning is standard practice for them.

Thanks,
John
'65 Crown
Tucson



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