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1990 XJS Vacuum

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Jasmineman40

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I had to remove the engine during a manual transmission kit installation. I wish I had photographed the vacuum line routing. I'm running rich which leads me to believe that I have not routed the vacuum lines for the fuel regulators correctly. Can anyone with a 1989-1991 with Marelli Ignition send a few photos of how your vacuum lines are routed, please? Any other thoughts on running rich?
 
Jasmineman40 said:
I had to remove the engine during a manual transmission kit installation. I wish I had photographed the vacuum line routing. I'm running rich which leads me to believe that I have not routed the vacuum lines for the fuel regulators correctly. Can anyone with a 1989-1991 with Marelli Ignition send a few photos of how your vacuum lines are routed, please? Any other thoughts on running rich?
Click to expand...
I think you can get an actual vacuum schematic on Jaguar-Lovers Forum website.
You might have to establish a membership for a few days by connecting with a few posts.
As a former XJS owner, 1994, they were the most helpful and active of that Marc.
Maynard is a BCF member here also with tons of XJS experience.
He might want to chime in with help.
 
This might be helpful -

forums.jag-lovers.com

Help with a few Vacuum Mysteries

Bryan, Welcome to the list. I can help with some of this as I did a major engine bay restoration of my wife’s Left Hand Drive 1990 XJ-S convertible (5.3L V12 w/ Marelli ignition) a few years ago and removed and replaced all engine bay belts and hoses. I think that 1989 was the transition year...
forums.jag-lovers.com forums.jag-lovers.com
 
Jasmineman40 said:
I had to remove the engine during a manual transmission kit installation. I wish I had photographed the vacuum line routing. I'm running rich which leads me to believe that I have not routed the vacuum lines for the fuel regulators correctly. Can anyone with a 1989-1991 with Marelli Ignition send a few photos of how your vacuum lines are routed, please? Any other thoughts on running rich?
Click to expand...
Is there a vacuum routing diagram under the bonnet? I will look at my 94 and post it if I have one.
 
from the link I posted above:

vac 1.jpeg


vac 2.jpeg


Tom M.
 
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