[Roadsters] Clutch Master Cylinder

[Gary and Cindy Ault]

Ed,

Dewey is correct.  DOT5 is silicone fluid.

I have used DOT5 in my car (brakes and clutch) for ~25 years.  I ran 
denatured alcohol through the system (from the master cylinder out, just 
like bleeding the system) to flush the old DOT3 (petroleum-based) fluid, 
then thoroughly flushed the system with DOT5 before buttoning it up.  No 
leakage or hydraulic problems since.  I see no downside whatsoever.

But, like Dewey suggested, you should probably check the discussions on 
311s.org to get a broader perspective.

Gary

----- Original Message ----- 
From: "Dewey Hahlbohm" <hahlbohmd at earthlink.net>
To: "Ed Mitchell" <edmitche at gmail.com>; <datsun-roadsters at autox.team.net>
Sent: Sunday, December 21, 2008 6:44 PM
Subject: Re: [Roadsters] Clutch Master Cylinder


>I think DOT 5 is silicone.  If you go that route, it may require some 
>additional prep to ensure all the glycol based fluid has been flushed from 
>the system.
>
> Pros and Cons to DOT 3/4 fluid vs. DOT 5, you might want to check further 
> before you make that decision.  Google DOT 5 brake fluid, I am sure you 
> will get a better idea.  311s.org also has some past threads on that 
> subject.  Good luck, Dewey
>
> -----Original Message-----
>>From: Ed Mitchell <edmitche at gmail.com>
>>Sent: Dec 21, 2008 5:39 PM
>>To: datsun-roadsters at autox.team.net
>>Subject: [Roadsters] Clutch Master Cylinder
>>
>>Hi Again all,
>>
>>
>>
>>Just wanted to check.before I screw up.
>>
>>
>>
>>Need confirmation that the fluid used in a 1967.5 SPL311 Clutch Master
>>Cylinder
>>
>>Is indeed brake fluid.
>>
>>
>>
>>All Parts from master cylinder to transmission are brand new...
>>
>>
>>
>>But DOT5 brake Fluid?  Is this right?
>>
>>
>>
>>Thanks
>>
>>
>>
>>Happy Holidays all  :-)
>>
>>
>>
>>
>>
>>Ed Mitchell
>>
>>Las Cruces, NM
>>
>>1967.5 Datsun Roadster 1600 - SPL311-12761
>>
>>http://www.ziaroc.com/
>>
>>http://rides.webshots.com/album/559322539UXctqG?vhost=rides     <--Dead
>>Betty  :-)
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