<VV> installing a dual MC in '65

[Sethracer at aol.com]

In a message dated 5/28/2009 11:06:21 AM Pacific Daylight Time,  
keith.hammett at stainlessfab.com writes:

Since  the convert is totally apart and at the painter, I started my list
of what  I would need to get her back together.  On the list is brakes, I
would  like to go to a dual MC.  Since I will be putting in new brake
lines  what is the difference between a single mc LM and a dual mc LM?
How are  lines routed for the dual MC.  Am I better off to buy the dual
MC  conversion from Clark's or buy the Multikit for a '67 to '69 that
includes  the dual MC?





The 65 Corvair is different than the 66 Corvair. The line to the rear  
brakes is smaller in 65. I am sure the clarks kit allows for this difference. I  
have converted a few ones with 67-69 parts. The 65 requires a slightly 
different  fitting (feeding the rears) at the firewall because of the line size 
difference,  unless you swap in a 66-69 line set. The fitting at the back of 
the 65 is also  smaller to mate with the smaller line to the front. If you 
can find a good  used master cylinder to rebuild, and feel comfortable about 
doing it, you will  have one advantage. The stock masters have little 
pressure valves in the outlet  ports to maintain a small pressure in the line. 
Most of the new, replacements do  not. Sometimes they get removed during a 
rebuild as well. This is not a deal  breaker, but I thought you might want to 
know. If the car is a stockish,  street-driven car, you won't need any 
balance valve. The Corvair brakes are  balanced front to rear by their widths, and 
the weight distribution of the  Corvair doesn't really get too upset under 
braking, unlike almost all front  engined cars. If you find someone parting 
a 67-69, try to get all the fittings  and lines as a complete set. If you 
want a new master, try to get one that is an  exact match for the stocker. 
(line fittings on the correct  side, etc.) 
 
Seth  Emerson

C's the Day! - Corvair, Camaro, Corvette



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