Got my latest copy of the Institute of Automotive and Mechanical Engineers
journal the other day, and it had an article on the new Toyota Kluger.
The fuel injection system , quite normal apart from the fact that there is
no return line from the fuel rail.
They mount the regulator up next to the pump. So all the fuel going to the
rail is under pressure but does not return.
Claimed advantages being, less plumbing, fuel heating reduced, no hot fuel
being returned to the tank, and reduced emissions due to evaporating fuel.
Would not be that hard to rig up on the V12 from what I can see, maybe
feeding both ends of the fuel rail at the same time.
Any thoughts ?
Andrew Holley
77 xjs
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In reply to a message from A.Holley sent Sun 30 May 2004:
I think other people (like Ford) have been do this by
controlling the pump using pulse width modulation. They can
make the pump put out just exactly what the engine wants all
the time. I don’t think they use any regulator. This is not
new technology.–
The original message included these comments:
Any thoughts ?
–
Joe Bialy 87 XJ-S
Grosse Ile, United States
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Gentlemen,
Just getting ready to do some other work on the car (88 xjs v-12 coupe) and
noticed a vacuum line just hanging there. Traced it back and it looks to be
terminating into the side of the distributor. I have yet to be into the guts
of the ‘V’, so am I right in assuming this is the hose that feeds my vacuum
advance??? And where should it be connected? I’ve been under the bonnet a
lot and have not experienced any symptoms of no vacuum advance (car has been
off the road for a few months too) so I have never had occasion to deal with
this yet. Thanks!
Norm Baier
88 XJS Coupe
Woodstock, GA
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Hi again,
Any advice concerning removing a radiator banjo bolt without destroying the
crossover tubes? Mine seems to be stuck… it’s currently soaking in wd-40.
Norm Baier
88v12 coupe
woodstock, ga
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In reply to a message from Norman Baier sent Mon 31 May 2004:
I believe the hose you mentioned is the fresh air
intake line for the distributor. This line brings in
filtered air, which is then removed by the vacuum line
that leads out from the top of the distributor cap to
the AAV. The idea here is to remove any possibility of
igniting vapors that might be hiding inside to cap.
Also, unlike the vacuum advance hose, this hose
attaches to the side of the Lucas cap.
If the hose comes loose, the engine will still operate
fine, but since it’s bringing in non-filtered air to
the distro., there’s an increase chance of fouling the
cap and rotor.–
Perry Cooper
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Thanks Perry
I think thats it. I need to go get a filter.
Norm Baier
88 v12 coupe-----Original Message-----
I believe the hose you mentioned is the fresh air
intake line for the distributor. This line brings in
filtered air, which is then removed by the vacuum line
that leads out from the top of the distributor cap to
the AAV.
Perry Cooper
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Whew! I finally got this thing apart without messing up the crossover tubes.
Norm Baier
88 XJS v12 coupe-----Original Message-----
Any advice concerning removing a radiator banjo bolt without destroying the
crossover tubes? Mine seems to be stuck… it’s currently soaking in wd-40.
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