I am restoring a 1968 E Type 2+2 with automatic that I bought
partially restored from an estate sale, so the previous owner is
not around to answer questions. The transmission and engine had
been removed and reinstalled by the previous owner when the body
work was done. The transmission was immaculate externally when I
acquired the vehicle. I pulled the oil pan and everything inside
also looks brand new and shiny. I also pulled the access plate
over the front universal and the rear oil seal looks brand new. It
does appear to be a rebuilt unit.
After I got the engine running, I filled the BW8 with correct fluid
and made all the cable connections. The transmission works with
one important exc0eption – it refuses to upshift to top gear! The
stall speed check is OK in all selector positions and the 1-2
shift is good with no slippage and reverse works OK, too. The
torque converter seems to work OK, also. The rear pump operates as
indicated by the car’s momentum restarting the engine in any
forward position above 20MPH after stopping the engine in N. Manual
downshift to low gear occurs by selecting L at slow speed. The
kickdown cable adjustment moves the 1-2 shift point as expected,
but no setting will provide a 2-3 upshift. However, I cannot feel
the ‘detent’ in the kickdown cable travel. Since it does not shift
into top gear, I cannot check for kickdown. I did check the
modulator and it was clean and moved freely.
Is anyone aware of anything further I can check without pulling
the engine/transmission to diagnose and/or fix this problem?
Thanks for any suggestions,–
Kent
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
In reply to a message from Kent Holcomb sent Mon 26 Jul 2004:
Good luck on your shifting. I have a BW8 and it shifts fine (but
leaks a little fluid). Just in case you are not aware, the Drive 1
position starts the car in 1st, then shifts to 2nd, then to 3rd.
The Drive 2 position starts the car in 2nd then shifts to 3rd.
Is it possible that this is the trouble?
Jim Tison
'68 2+2–
Jim Tison
Cumming, Georgia, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
In reply to a message from Jim Tison sent Mon 26 Jul 2004:
I mentioned the shift positions (D1 and D2 related to the tranny)
because of an incident I had with a local Jag shop. I know it
sounds simple, but I carried my jag to the local shop to look at my
kickdown linkeage and was told they had found the problem - the car
wasn’t shifting into high gear (only one shift from dead start in
Drive 2) and my overdrive didn’t seem to work either. Well, they
obviously didn’t know about the BW8 tranny (no overdrive) etc., and
they were unaware of the shift sequence. I brought my car home
immediately.
Anyway, good luck.
Jim–
Jim Tison
Cumming, Georgia, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
I have no answer for you as my auto shifts up as it should.
However the up shift is not smooth under higher revs.
The car does get a stiff jolt when up shifting at, say, 2500 rpm.
Only when I drive real calm and introduce the upshift by lifting off
the the throttle, the shift is smooth.
The only thing is that the upshift to three is later, as the tranny warms up.
Sometimes the tranny won’t shift up to three when hot at all unless the rpm’s
are high.
I wish that I had chosen a manual gearbox update despite the costs.
In reply to a message from Kent Holcomb sent Mon 26 Jul 2004:
I Have a series 11 e type auto that had a BW model ‘‘8’’ fitted.
It was dificult to get the shifts correct as the push cable
controls the hydraulic pressure in the trans and is extremely
sensitive to set, ie delayed shifts harsh changes.(Very difficult
to get parts in Australia)
In the end although it was an effort I fitted a BW model 12 trans
that basically bolts straight in uses vaccumn for shift control and
a micro switch for kickdown.
They are fitted to Series 1 XJ6s are tough, inexpensive and far
superior to those obsolete BW model 8s.
Good Luck–
MD Turner (XJ6 series2) (Series2 EType 2+2)
Jan Juc Victoria, Australia
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
In reply to a message from Jim Tison sent Mon 26 Jul 2004:
Thanks for the reply, Jim, but I am aware of the D1/D2 difference
you describe. The problem is that regardless of the drive position
selected, the BW8 never upshifts into high gear. In D1, after the
1-2 upshift, the tach reads about 3000 RPM at 40 MPH. At this
ratio, top speed is about 70 MPH at redline!
Kent–
The original message included these comments:
In reply to a message from Kent Holcomb sent Mon 26 Jul 2004:
Good luck on your shifting. I have a BW8 and it shifts fine (but
leaks a little fluid). Just in case you are not aware, the Drive 1
position starts the car in 1st, then shifts to 2nd, then to 3rd.
The Drive 2 position starts the car in 2nd then shifts to 3rd.
Is it possible that this is the trouble?
Jim Tison
Kent,
on my E the upshift ( 2 to 3 ) under full acceleration occurs @ 3500rpm.
When driving slower I can induce the upshift, while in gear 2, by lifting
the trottle pedal for a second or 2. The tranny will go into 3, however when
the tranny is hot this is not so easily done.
Jos Raven
1969 2+2 auto.
the problem is that regardless of the drive position
selected, the BW8 never upshifts into high gear. In D1, after the
1-2 upshift, the tach reads about 3000 RPM at 40 MPH. At this
ratio, top speed is about 70 MPH at redline!
I have just done two runs with the car on different positions, length wise,
of the kick-down
cable.
I had it set quite short, that is the yoke was almost all the way op the
thread.
This gave me the setting as described in my previous post.
The first run I set the yoke maximum out.
The throttle pedal felt as if it could no longer be depressed as deep. Up-shift
from 1 to 2 was later, 2 to 3 not until @ 3500 rpm. Could not be induced by
lifting the throttle.
Kick-down was fast, reacted almost immediately when putting the pedal down.
Second run was a setting in between. Still later upshifts and while
cruising @ 30 mph
(legal limit in the village over here) no upshift to 3. Kick-down is ok.
Upshift to 3 @ high rpm’s
I think I must get my hands on a pressure meter as per technical manual and
see if
I can set the pressure right.
Keep in touch,
Jos Raven
At 04:55 PM 7/27/04 +0200, you wrote:
Kent,
on my E the upshift ( 2 to 3 ) under full acceleration occurs @ 3500rpm.
When driving slower I can induce the upshift, while in gear 2, by lifting
the trottle pedal for a second or 2. The tranny will go into 3, however when
the tranny is hot this is not so easily done.
Jos Raven
1969 2+2 auto.
the problem is that regardless of the drive position
selected, the BW8 never upshifts into high gear. In D1, after the
1-2 upshift, the tach reads about 3000 RPM at 40 MPH. At this
ratio, top speed is about 70 MPH at redline!