Anyone know if the Accel std coil could be used in place of the primary coil
in a CEI setup. I would like to swap the primary coil for a start test and
would like to know if it is coil going flaky under demand (20 year old
coil). SO before I save up for the single coil replacement I would like to
try a less expensive test. I checked the archives and the Accel site still
no ans. Thanks_________________________________________________________________
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Kirbert
(Author of the Book, former owner of an '83 XJ-S H.E.)
2
Terry Pegler wrote:
Anyone know if the Accel std coil could be used in place of the
primary coil in a CEI setup.
This has been discussed before, and I believe the answer was yes. I
certainly don’t see why not; in fact, I fully expect you could
replace BOTH coils with generic coils costing perhaps $15 each as
long as the primary resistance was in the right range.
In reply to a message from Terry Pegler sent Fri 13 Sep 2002:
This is in the archives somewhere.
I’ve been running with an Accel primary/Lucas secondary for many years now with no ill effects.
I don’t recall the model number, but IIRC, there is only one Accel thats compatible with HEI that is a stand
alone unit. Most HEI coils mount in the cap on GM cars.–
The original message included these comments:
Anyone know if the Accel std coil could be used in place of the primary coil
in a CEI setup. I would like to swap the primary coil for a start test and
–
Joe Bialy 87 XJ-S
Grosse Ile, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
Now I’m not one to expect 30 mpg out of a V12, but I have been getting less
than 7 mpg (approx. 6.75) on a combination of suburban (est. 70%) & highway
driving (30%). The mileage is from my own calculations, not using the
computer.
The car is new to me, a 1988 S3 V12 VDP (cdn. spec). I’ve had it a little
over 2 months and put about 1500 miles on it. It seems to run fine (decent
power, smooth idle), but I have not previously had a V12 car of any type, so
I don’t have anything to compare it to. I have tried both 93 and 87 octane
and have not noticed any difference.
I’ve looked at the archives and the Book and two items that seemed to come
up more than once were the O2 sensor and checking that the distributor rotor
isn’t seized.
Any other suggestions for my poor gas mileage checklist?
FWIW, other issues with the car are:
A/C (mk III) is cold all the time, regardless of setting.
cruise doesn’t work
intermittent fuel odor, can be strong, but no leak that I have detected.
Seems to be stronger in trunk and pass. compartment. I have not noticed a
fuel odor in the engine compartment.
I’m not thinking that its likely that any of the above are related to the
gas mileage, but I wanted to list them to be complete. Of course, I’ll
gratefully accept help on any issue
Now I’m not one to expect 30 mpg out of a V12, but I have been getting
less
than 7 mpg (approx. 6.75) on a combination of suburban (est. 70%) &
highway
driving (30%). The mileage is from my own calculations, not using the
computer.
The car is new to me, a 1988 S3 V12 VDP (cdn. spec). I’ve had it a little
over 2 months and put about 1500 miles on it. It seems to run fine
(decent
power, smooth idle), but I have not previously had a V12 car of any type,
so
I don’t have anything to compare it to. I have tried both 93 and 87 octane
and have not noticed any difference.
I’ve looked at the archives and the Book and two items that seemed to come
up more than once were the O2 sensor and checking that the distributor
rotor
isn’t seized.
Any other suggestions for my poor gas mileage checklist?
Hi Jim,
88 is sort of on the cusp between Lucas and Marelli ignitions. An 88 in
merry old England becomes an 89 in the States. I don’t know what Canadian
spec ends up as. But making the presumption that you have the Lucas
ignition, I would suggest that you pull the distributor cap and check not
only the play and snap-back on the rotor, but also suck on the hose leading
to the vacuum advance to check its operation. I’m not familiar with the
under-bonnet temperatures of the VDP, but In the XJ-S the heat eventually
fries the diaphragm in the vacuum advance module. If it hasn’t ever been
changed, then the rubber diaphragm has put in 14 years of flexing, and heat
may not even be the issue . . . just old age.
While you’re at it check that your plugs are set to 0.025. Also, to
prevent detonation stick with the higher octane fuel. Of course if your
vacuum advance isn’t working, then detonation isn’t likely.
Dave Osborne
88 H&E XJ-S (PURR)
Carson City, Nevada
In reply to a message from James Frey sent Sat 14 Sep 2002:
I have a 1989 XJS, Lucas CEI that I have owned for a couple of
months. I too am getting 7-8 MPG. I am sure a tune-up would help.
However, I do know the vacum advance is not working on my car. I
would share and even confirm the other gentlemens suggestion.–
Gary Gemmell
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
In reply to a message from James Frey sent Sat 14 Sep
2002:
I have a 1989 XJS, Lucas CEI that I have owned for a
couple of
months. I too am getting 7-8 MPG. I am sure a tune-up
would help.
However, I do know the vacum advance is not working on
my car. I
would share and even confirm the other gentlemens
suggestion.
Gary Gemmell
Gee, thanks guys! Now I feel like I’m doing great.
My '89 XJS, Lucas CEI is getting about 12 mpg – and
hits 14, sometimes 15 on straight highway cruising.
Sounds like I’m doing better than average. LOL
Although I bearly had over 10 mpg the last tank full,
but I’d been doing a lot of “aggressive” driving with
it lately (i.e., dusting stupid 4-banger rice burners
and SUV’s who for some unknown reason like to try to
prove they can outrun a Jag – though I prefer to do
it in the E, as it is much quicker).
Regards,
Steve Weinstein
'89 XJS Coupe
'72 E-type 2+2 (V-12, averages about 14 - 15, 18 highway).On 17 Sept 2002, Gary wrote:
In reply to a message from James Frey sent Sat 14 Sep 2002:
Hi Jim:
I have a 86 VDP (Canadian version) which has the same problem. I
am consistently getting around 8mpg (around 38liter/100KM)
according to the trip computer (combined city and highway driving).
I renewed all sparkplugs (used irradium ones) with the right gap
set, renewed the ignition wires (custom built 8.5mm set), rebuilt
the distributor and made sure it’s not siezing, and used K&N air
filters. I had a fair new vacuum advance (about 2 years old) and I
double checked and made sure it’s functioning correctly. But after
all these, I am still getting around 13mpg (straight highway) and
around 8mpg (combined city and highway).
I don’t know if you have fixed your high fuel consumption problem.
If so, I appreciate it if you could share with me some of the tips
you got.
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In reply to a message from Z sent Thu 12 Jun 2003:
Dear Zhan
First thing I would do is measure the resistance of the ECU
temperature sender because that could be a problem unless you have
an injector jammed open. Then it would run like absolute poo,
hydraulic and fill the sump with fuel. Oh and set fire to the car
via the cats.
Chainge the sender mate.
Regards Mark–
Bassmec, XJS V12 1977 Coupe
Ipswich, Suffolk., United Kingdom
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
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I started to suspect the odometer (it was a new speedo) and sure enough it
was not reading correctly. I sent it out to be repaired and it had some bad
teeth on one of the gears. My mileage instantly “improved” to between 10-12
mpg in mostly city driving/short trips.
I think it can be improved further, but the other steps I was planning (in
particular, the distributor & vac. advance) are ones you have already taken.
Jim
88 V12 VDP
In reply to a message from James Frey sent Sat 14 Sep 2002:
Hi Jim:
I have a 86 VDP (Canadian version) which has the same problem. I
am consistently getting around 8mpg (around 38liter/100KM)
according to the trip computer (combined city and highway driving).
I renewed all sparkplugs (used irradium ones) with the right gap
set, renewed the ignition wires (custom built 8.5mm set), rebuilt
the distributor and made sure it’s not siezing, and used K&N air
filters. I had a fair new vacuum advance (about 2 years old) and I
double checked and made sure it’s functioning correctly. But after
all these, I am still getting around 13mpg (straight highway) and
around 8mpg (combined city and highway).
Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting services and resources including Photo Albums, Event Diary / Calendar, On Line Books and more !
