Thanks Brian...much appreciate the info. I have a couple of drums extra from
the donor just in case one of them is a bit over. I installed new shoes
recently and the fit is pretty tight, so I do not expect them to be cut too
far.
Cheers...Michael
----- Original Message -----
From: "Brian Hollands" <Brian_Hollands@adp.com>
To: "Teesun68" <teesun68@telus.net>
Cc: "Datsun Roadster Mailing list" <datsun-roadsters@autox.team.net>
Sent: August 17, 2002 12:43 PM
Subject: RE: Brake drum diameter for '69 1600
> 9.040 is about the max. The brakes will work if you have more wear than
> that on the drums but you will always seem to have a soft pedal. I had
that
> for years, no matter how I bled the brakes. In the end, I put some used
> drums on that were 9.025 or so and I suddenly had a MUCH better pedal.
> Also, the Z car and 510 drums do have the same diameter and bolt pattern
but
> they lack the centering mechanism that the roadster drums have. If you
look
> at the inside of a roadster drum, you'll see that it has a recessed area
at
> the center around the holes for the wheel studs. That recessed area fits
> tightly around the sides of the axle (hub) flange. The other drums don't
> have that and as a result may not seat all the way back leaving a large
gap
> the drum and backing plate. I've never tried one of the other drums
myself
> so I don't know how significant this problem would be.
>
> Brian '69 2000
> Tampa, FL
> http://web.tampabay.rr.com/oilleak/
>
> -----Original Message-----
> Trying to put the final touches on the '69 1600 to get it back on the
> road...no resto - just small fixups....I dug through the archive and the
> number I can find for Max. drum diameter is 9.04 ". Is that the verdict
from
> the "gurus"? There are only a few e-mails on the subject ( older cars
> mentioned) and I'm not sure if it varies from year to year?
>
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