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Vacuum pipe route

Posted: Sat Apr 18, 2020 4:23 pm
by Treetrimmer
Hi Folks,

I'm now getting back to completing work on my 1965 Jaguar "S" type, 3.8 auto with Power Steering, chassis P1B 56135BW.

My current problem is ascertaining the correct route for the two vacuum hoses, one from the inlet manifold to the vacuum reservoir tank, and the the other from the tank to the servo.
548C1348-FDCF-4416-8544-00890D344E62.jpeg
548C1348-FDCF-4416-8544-00890D344E62.jpeg (4.4 MiB) Viewed 1336 times
The present route has the hoses meandering around the engine bay, and then coming through the lower edge of the servo "shield ". ( See the first photo, one hose has been removed. By being forced through the bottom edge of the servo shield, the hoses are very mis-shaped, and one has almost worn through.)

There is an unused hole just forward of the servo shield ( see second photo) which might be more sensible, but it isn't really big enough for the two hoses side-by-side.

Please would someone enlighten me as to the factory approved route, as I'm sure mine is not how Jaguar intended, although a sensible route is not obvious to me.

Richard

Re: Vacuum pipe route

Posted: Sun Apr 19, 2020 12:51 am
by Glyn Ruck
See here. Early servo shown but connections are the same. Later servo is larger diameter & has no remote breather. Please add your car details to your profile.


Image


Image


Early Servo cowl.

Brake-Servo-Installed-in-Cowl.jpg
Brake-Servo-Installed-in-Cowl.jpg (1.37 MiB) Viewed 1324 times

Re: Vacuum pipe route

Posted: Sun Apr 19, 2020 5:52 am
by Treetrimmer
Hi Glyn,

Thank you for your prompt reply, and especially the photo. Judging by your photo, ( wow, how many of our cars are still that immaculate) my hoses were roughly in the correct position, but trapped by the lower edge of the shield.
575751ED-9547-438C-9155-76925F7E1E14.jpeg
575751ED-9547-438C-9155-76925F7E1E14.jpeg (3.94 MiB) Viewed 1317 times
This is my servo shield removed, and I had assumed the "missing" bit had simply corroded away. My hoses were exiting from the lower r.h.side, and the shield was missing a securing "stud" and distorted, because of the hose.
Would you happen to know what the securing "studs" are called? I would like to obtain some replacements.
Happy motoring, and thank you.

Re: Vacuum pipe route

Posted: Sun Apr 19, 2020 11:24 am
by Glyn Ruck
Hi, sorry. Those pics are not of my car just some I had in my library. You can see my car here: http://www.jagstyperegister.com/forum_n ... ?f=3&t=152

Your car like mine has the newer, larger booster with 2 or 3 mounting studs. Early boosters were rim mounted.


Cowl covering Servo.

Cowl ~ over Servo..JPG
Cowl ~ over Servo..JPG (39.31 KiB) Viewed 1300 times

Search of original P/N brings up alternative screw.

Cowl Servo screw..JPG
Cowl Servo screw..JPG (82.54 KiB) Viewed 1299 times

Re: Vacuum pipe route

Posted: Sun Apr 19, 2020 8:22 pm
by Treetrimmer
Glyn,

Once again, thank you for the information.

Richard