As Steve says, the gearbox models go BC, B5 and IB5
But they are all basically the same gearbox, just with various
improvements, and on the later IB5's a switch to cable gearchange and or
hydraulic clutches.
The BC which yours probably is if it's an Escort RS Turbo box used the
end of the output shaft as the inner surface for a roller bearing and
after a while the surface of the shaft starts to break up.
The B5 and then the IB5 had a proper inner bearing race pressed on the
end of the output shaft.
The easiest upgraded gearbox for yours is probably one from a late Mk3
(1996) Fiesta, this would be a B5 gearbox.
Everything would bolt straight on, you might just need to swap some of
the studs around on the gearbox casing where the brackets bolt on but
you can take these from your old gearbox.
The gearchange and driveshafts are compatible.
If you want to keep the LSD from your current gearbox then that can be
swapped into the new gearbox.
On mine and Matthews 2+2's i used a IB5 gearbox from a Mk5 or 6 Escort
Zetec 1.6.
These have the advantage of moving the starter to the rear of the engine
and out from behind the turbo but that only works on a Zetec, on the CVH
the starter would would hit the oil filter.
These are a bit more of a pain to fit as they changed the size of the
spigot that the clutch release bearing slides over and finding a release
bearing that fits it that isn't low lift is a bit of a pain.
I machined the spigot down on ours to take a bearing that could be found.
I believe there are some IB5 with a front starter on the Mk5 Escorts in
the 1.4 CVH and early 1.6 Zetec Escort.
I don't know what size release bearing these take.
You can tell an IB5 because it has the square plastic oil breather on
the top of the gearbox (instead of the pipe on the end cover) and a lot
more ribs on the casing.
The RS Turbo LSD will fit straight into the IB5 gearbox as well with the
IB5 bearings fitted to it.
Jim
On 17/09/2015 23:10, Steve Kodź wrote:
Jon,
Depending on how much you are willing to pay, you might want to look
at what the 'Gearboxman' offers. I've never used their services, but
various Ford forums used to rate them. My information is a few years
old now, but if you've a tuned RS Turbo the gearbox will probably be a
weak point. When I first had my H4 RS Turbo engine tuned the diff
destroyed itself within a couple hundred miles.
http://www.gearboxman.co.uk/psgearboxes.html#03
In answer to which gearboxes fit, the BC and some IB5 will fit. With
the IB5 gearboxes the starter motor location varies, which is why I
believe some don't fit. No doubt the Oracle that is Jim Hearne will
tell you everything you need to know.
Regards,
Steve
h4-turbo.co.uk
quantumowners.co.uk
On 17/09/15 22:56, jon jackson wrote:
Well it had to happen, I have had my 2+2 RS turbo for 6 years now and
it has been a mostly reliable performer especially at track days
where it manages to punch up amongst some fast machinery.
Last time out however we had brake failure due to a solid pipe that
was hidden to me sliced by the alternator pully and I am baffled as
to why it was routed even near it! It isnt now though as that problem
is fixed but the gearbox is now rumbling badly and either replacement
or rebuild is needed.
Any advice on boxes gratefully required, what boxes fit? are some
stronger and better than others? I have one piece good condition
driveshafts so want to keep them.
Lastly does anyone have a good box they want to exchage for loot?
Thanks in anticipation
Jon
--
--
You received this message because you are subscribed to the Google
Groups "Quantum Owners Group" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/quantumowners?hl=en
IMPORTANT NOTE: All information presented herewith is provided on an
"As Is" basis, without warranty or the implication thereof. Neither
the Quantum Owners Club nor the individuals associated with the
Quantum Owners Club or in the preparation of the above information
shall have any liability to any person or entity with respect to
liability, loss, or damage caused or alleged to be caused directly or
indirectly by the instructions contained within this or related
message(s).
---
You received this message because you are subscribed to the Google
Groups "Quantum Owners Group" group.
To unsubscribe from this group and stop receiving emails from it,
send an email to [email protected]
<mailto:[email protected]>.
For more options, visit https://groups.google.com/d/optout.
No virus found in this message.
Checked by AVG - www.avg.com <http://www.avg.com>
Version: 2015.0.6140 / Virus Database: 4419/10662 - Release Date: 09/18/15
--
--
You received this message because you are subscribed to the Google
Groups "Quantum Owners Group" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/quantumowners?hl=en
IMPORTANT NOTE: All information presented herewith is provided on an
"As Is" basis, without warranty or the implication thereof. Neither
the Quantum Owners Club nor the individuals associated with the
Quantum Owners Club or in the preparation of the above information
shall have any liability to any person or entity with respect to
liability, loss, or damage caused or alleged to be caused directly or
indirectly by the instructions contained within this or related
message(s).
---
You received this message because you are subscribed to the Google
Groups "Quantum Owners Group" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to [email protected]
<mailto:[email protected]>.
For more options, visit https://groups.google.com/d/optout.
--
--
You received this message because you are subscribed to the Google Groups "Quantum
Owners Group" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/quantumowners?hl=en
IMPORTANT NOTE: All information presented herewith is provided on an "As Is"
basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor
the individuals associated with the Quantum Owners Club or in the preparation of the
above information shall have any liability to any person or entity with respect to
liability, loss, or damage caused or alleged to be caused directly or indirectly by the
instructions contained within this or related message(s).
---
You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
