Vacuum hose

Paul77

Paul77

New Member
Hi all what is the inside diameter of the servo vacuum hose from the manifold also the shorter smaller one off a 1974 P6b they look the original ones so i want to replace them before they fail .
Many thanks.
 
Hello Paul,

Just go to a brake place and ask for a length of vacuum hose. You will find that they are a standard diameter and boosters all have check valves that don't vary in size. What they sell you will be the right size.

Ron.
 
There's not a brake place anywhere near where i live , iff i can get the measurements i can order what i need on line and get it sent to my home address.
 
3/8 " From Manifold. You may need to warm it to fit it. Can't recall a smaller pipe, unless you mean the one from the air control valve to the vacuum can, in which case the 3/8" bore will fit, but it will mean taking off the air control white cover, and it will still be a job as the servo vac pipe is very hard and the OEM short pipe is a thinner wall softer pipe which you may have to hunt down from a brake supplier.
Try past parts
01284 750729 or email restore@pastparts.co.uk
Or
Classic Car Parts - PowerTrack Ltd - Mail Order Supplier of Lockheed and Girling Brake and Clutch Components For British Car and Commercial 1935 - 1980
 
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