"you can use a hand drill and hone to refresh the aluminum cylinder bore"
Sorry, you shouldn't hone aluminum cylinders. The cylinders are anodized to
harden the aluminum and to stop the porosity. You can do what you want but I
find it unacceptable and dangerous. An article I read many years ago in a
restoration magazine put me straight about this fact.
However, I would recommend resleeving the cylinders in brass rather than buy
new ones. Not cheaper but the brass can be honed and I do believe it resists
moisture better and should last longer.
Mike
PS - Slave cylinders and any other cast iron brake cylinder/master can be
rehoned. Unfortunately only the clutch slave on the Datsun is cast iron.
----- Original Message -----
From: "Chris Robertson" <ckrobertson@hotmail.com>
To: <duntov1@attbi.com>; <datsun-roadsters@autox.team.net>
Sent: Sunday, December 16, 2001 12:17 PM
Subject: Re: new owner (brake info- long)
> Hi Richard,
>
> Best bet is to replace the brake MC with a new or rebuilt unit. They are
> easy to rebuild if you are so inclined. A seal kit is cheap and you can
use
> a hand drill and hone to refresh the aluminum cylinder bore as long as it
> isn't severely pitted.
>
> Give the system a good flush and see what the stuff in there looks like.
> Since it has been sitting, you really should check the action of the front
> calipers and rear cylinders.
>
> As you probably know, brake fluid will absorb water. Since the roadster's
> front brake cylinders are steel, they tend to get rusty, pitted or stuck
> when stored. This is more the rule than the exception in my experience
> owning 5 roadsters over the years. Again, replacement is the easy way to
> go, but they can be rebuilt with an inexpensive seal kit as long as they
> aren't pitted. I once shipped a set of severely pitted front cylinders
off
> for stainless steel inserts. The cost was about the same as factory new
> calipers, but I won't have to worry about pitting again.
>
> Rear wheel brake cylinders are cheap enough to buy new vs. bother
rebuilding
> (or at least they were last time I checked).
>
> While you are at it, replace the pads and shoes as needed, and REPACK THE
> FRONT AND REAR WHEEL BEARINGS!!! It may have 30+ yr old grease in there.
> The rear ones are not at all easy to pack but definitely worth doing, as
> replacing a rear wheel bearing is a 100 times as much work (ask anyone
> that's done it).
>
> Castrol is fine for brake fluid. Just use DOT3 or better. If you rebuild
> the whole system, you might consider using silicone brake fluid. Many
> roadster owners have done that and are happy with it. It doesn't absorb
> water.
>
> OK, so you've potentially bought yourself a lot of work without realizing
> it. Don't despair, do it right now and you will avoid many nightmares
> (again, BTDT). The good news is that when completely redone, the roadster
> brakes work great (for 60's a non-boosted system). After all, the front
> Dunlop brakes were used on Jaguars in the day...
>
> Use any standard gear oil for the tranny. Be sure to do the rear
> differential while you are at it (same oil).
>
> The SS trim is available from many vendors. Some folks on the list may
have
> some laying around (I know I do, somewhere in storage).
>
> Your other cars sound really great. Enjoy the datsun!
>
> Chris Robertson
> Bryan, TX
>
> >From: "Richard Wright" <duntov1@attbi.com>
> >Reply-To: "Richard Wright" <duntov1@attbi.com>
> >To: <datsun-roadsters@autox.team.net>
> >Subject: new owner
> >Date: Sun, 16 Dec 2001 09:35:17 -0600
> >
> >I just purchased a 69 2000 in Dallas. Red with black interior.
> >It has been sitting a while.
> >What is the cost effective way to deal with a bad master cylinder?
> >
> >Is castrol brake fluid correct to use?
> >
> >Anyone have the side chrome for the driver's door and front fender?
> >
> >What is the best transmission oil?
> >
> >Thanx Guys!
> >Richard Wright
> >
> >69 Datsun 2000
> >60 V8 Healey racer
> >64 Daimler V8 sport sedan
> >
> >/// datsun-roadsters@autox.team.net mailing list
> >/// Send admin requests to majordomo@autox.team.net or go to
> >/// http://www.team.net/cgi-bin/majorcool
> >/// Send list postings to datsun-roadsters@autox.team.net
> >
>
>
>
>
> _________________________________________________________________
> Chat with friends online, try MSN Messenger: http://messenger.msn.com
>
> /// datsun-roadsters@autox.team.net mailing list
> /// Send admin requests to majordomo@autox.team.net or go to
> /// http://www.team.net/cgi-bin/majorcool
> /// Send list postings to datsun-roadsters@autox.team.net
/// datsun-roadsters@autox.team.net mailing list
|