Since only the return side regulator supposedly works, is
there any problem eliminating the right side one?
I am doing some cosmetic things, like polishing the water
rail manifolds and replacing steel with copper (lots of
‘‘free’’ time in retirement! crazy copper prices!). I want to
upgrade fuel lines, but have not found any with suitable
compression fittings to attach to the regulators. Does
anyone know what the regulator specs are and/or what an
alternative part is that mates to standard AN fittings? I am
assuming that I cannot use an AN fitting on one side and the
male side compression fitting at the regulator end due to
thread issues and possible sealing issues even with a
nitrile o-ring. Can someone confirm that?
I found nothing of help in archives, but did see discussion
about pressure test fittings. Why not just drill out the
unused right side temp sensor boss on the fuel rail? Then,
plug it when done.–
jtwo in Vail, CO USA, 04 XJR, 90 XJS
Vail, CO, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
Since only the return side regulator supposedly works, is there any
problem eliminating the right side one?
Many here have done that.
I am doing some cosmetic things, like polishing the water rail manifolds
and replacing steel with copper (lots of ‘‘free’’ time in retirement!
crazy copper prices!). I want to upgrade fuel lines, …
IMHO copper would be an upgrade from steel.
… but have not found any with suitable compression fittings to attach to
the regulators. Does
anyone know what the regulator specs are and/or what an alternative part
is that mates to standard AN fittings? I am assuming that I cannot use an
AN fitting on one side and the male side compression fitting at the
regulator end due to thread issues and possible sealing issues even with a
nitrile o-ring. Can someone confirm that?
Don’t know about the regulator thread but the rail connection is metric 14
millimeter thread with 1.5 pitch. I searched but was never able to find
them. For test purposes only you can use 1/4’’ BSPP fittings. The threads
fit loosely but you can get a leak free seal. I would not depend on it for
running since the BSPP and AN seats are not the same.
I found nothing of help in archives, but did see discussion about pressure
test fittings. Why not just drill out the unused right side temp sensor
boss on the fuel rail? Then, plug it when done.
(This should really be in the original thread because single topic threads
are best. But since you asked here I’ll answer here. )
At least one person from this forum has done that. Don’t remember who. You
can get a suitable Schrader from some early Ford FI car and drill and tap
the rail to whatever the thread is. The trick is to keep the chips out of
the rail. Personally, I would not even think of doing it with the rail on
the engine rail for fear of doing serious damage to the downstream regulator
and/or fuel pump. There would be no need to remove the Schrader. Just put a
valve stem cap on it. Also, be sure it has a fuel-rated core; the rubber for
an air service will not hold up to gasoline.
Kirbert
(Author of the Book, former owner of an '83 XJ-S H.E.)
3
I am doing some cosmetic things, like polishing the water rail
manifolds and replacing steel with copper (lots of ‘‘free’’ time in
retirement! crazy copper prices!). I want to upgrade fuel lines,
…
IMHO copper would be an upgrade from steel.
We learned a while back that copper brake lines are illegal. I can’t
help but think that copper fuel lines might just be a bad idea for
the same reasons.
– Kirbert
// please trim quoted text to context onlyOn 24 Apr 2012 at 11:40, Ed Sowell wrote:
We learned a while back that copper brake lines are illegal. I can’t help
but think that copper fuel lines might just be a bad idea for the same
reasons.
Oops. I meant to say " IMHO copper would NOT be an upgrade from steel."
OTOH, Bernie Embden constructed a fuel rail from copper tubing, apparently
without problems.
In reply to a message from Kirbert sent Tue 24 Apr 2012:
The problem with copper is that unless it is prorely supported it
has a tendancy to fracture from fatique vibration.–
The original message included these comments:
We learned a while back that copper brake lines are illegal. I can’t
help but think that copper fuel lines might just be a bad idea for
the same reasons.
In reply to a message from jtwo sent Tue 24 Apr 2012:
On your question AN fittings,a few years ago a man named Wayne
Estrada had a web site about his XJ-S he was detailing. He used a
lot of AN & SS lines and gave sizes & where he bought them. His
name appears in the archives, but that’s about all I know. Maybe
someone can give more info about him or his web site.
Larry
91 XJ-S 12cyl 5sp
95 VDP 6cyl–
The original message included these comments:
I am doing some cosmetic things, like polishing the water
alternative part is that mates to standard AN fittings? I am
assuming that I cannot use an AN fitting on one side and the
thread issues and possible sealing issues even with a
I found nothing of help in archives, but did see discussion