Help with vacuum hose connection from air pump to intake
#1
Help with vacuum hose connection from air pump to intake
I am reassembling my 1994 XJ6 and while putting things back together I found a loose vacuum line under the intake.
This vacuum line according to the diagram shown below, There is a one way valve shown in the diagram as item 14.
The hose I have found should lead from this item 14 to the Tee, item 19. I cannot locate the T and I do not know where on the intake this should eventually make a connection.
Can someone give me some hints here about this?
air pump and exhaust re-circulation pipe and air pump hose routing
This vacuum line according to the diagram shown below, There is a one way valve shown in the diagram as item 14.
The hose I have found should lead from this item 14 to the Tee, item 19. I cannot locate the T and I do not know where on the intake this should eventually make a connection.
Can someone give me some hints here about this?
air pump and exhaust re-circulation pipe and air pump hose routing
#2
Join Date: Feb 2014
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Hi Steve,
I once checked that out for someone and posted it at Jag-Lovers. Unfortunately the large images are still not working, but from my description that Tee should be under the fuel pressure regulator:
Jaguar XJ40 Air Injection Delay Valve Hose
Cheers,
Don
I once checked that out for someone and posted it at Jag-Lovers. Unfortunately the large images are still not working, but from my description that Tee should be under the fuel pressure regulator:
Jaguar XJ40 Air Injection Delay Valve Hose
Cheers,
Don
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93SB (07-24-2019)
#3
#4
if you haven't sorted it out I'll take a pic of my layout tomorrow
Larry
Last edited by Lawrence; 07-24-2019 at 12:05 AM.
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Don B (07-24-2019)
#5
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Location: Crossroads of America
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Hopefully Larry will have time to take a pic or two of his setup.
Cheers,
Don
#6
I haven't been out to the car yet, but Don is correct, the vacuum take-off is on top of the manifold, between the cylinders 1 and 2 intake, just below the fuel pressure regulator.
You can almost see the tee in this (old) photo of a '94 engine [my parts car]
The tee shown in diagram above, (#16), shows *TWO* connections, a short L-shaped hose (#20) that joins the manifold port and the longer hose (#17) emanating from the one-way valve (#14).
The *THIRD* connection is the striped vacuum hose that connects to the fuel pressure regulator.
old pic below
You can almost see the tee in this (old) photo of a '94 engine [my parts car]
The tee shown in diagram above, (#16), shows *TWO* connections, a short L-shaped hose (#20) that joins the manifold port and the longer hose (#17) emanating from the one-way valve (#14).
The *THIRD* connection is the striped vacuum hose that connects to the fuel pressure regulator.
old pic below
#7
There are two vacuum ports under the fuel pressure regulator and I have hoses on both of them.
I guess one or both of them is supposed to have a Tee connected so multiple things can be supplied with vacuum.
Thanks for the help and advice guys.
BTW, for a parts car that engine looks really clean!
I guess one or both of them is supposed to have a Tee connected so multiple things can be supplied with vacuum.
Thanks for the help and advice guys.
BTW, for a parts car that engine looks really clean!
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#8
Ok, yes indeed two ports, memory not what it used to be - here's the pic from my car - I replaced the plastic tee with a brass "y" but effect is the same - the left port is the connection for the FPR and the right takes the small L-hose that connects to the tee ...
so I guess you are missing a tee union that's why you have a spare "end"
HTH
Larry
so I guess you are missing a tee union that's why you have a spare "end"
HTH
Larry
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