Patrick, Did you put a J type overdrive on a standard 4spd transmission or
did you replace the transmission as well as installing an overdrive?
Did you also purchase a new drive axle or had yours cut to fit?
Thanks.
On Mon, 23 Nov 1998, Bowen, Patrick A. RP2 wrote:
> Huw, I performed one of the Mods earlier this year, really quite easy.
> First question is which overdrive are you planning on using "A" type or "J"
> type. Mine was a "j" type conversion. The conversion for the most part is
> a straight out parts swap. The exception being with the electical, the
> earlier spits had the switch on the column, later they were on the gear
> shift. The "A" type overdrives required a relay system to operate it
> (works off of higher voltage, I believe) while the "J" type is straight
> wiring using the power from the reverse light switch to connect to the gear
> shift switch and lock out switch to provide power to the servo and make a
> complete circle. ( I believe you call this wiring in serial). It is very
> easy, I created the wiring for my OD and it was simple. If I can answer
> any questions please just ask.
>
> Patrick
>
> At 11:55 AM 11/23/98 -0800, Joe Curry wrote:
> >Since there have been several "Me Too" replies, I'll forward my personal
> >reply to Huw to the List. One caveat, however, since Huw is only
> >spitting distance away from me, the offer of following my own
> >installation doesn't apply on an "In Person" basis, that is unless
> >anybody wants to venture to Western Washington.
> >
> >Regards,
> >Joe
> >--
> >"If you can't excel with talent, triumph with effort."
> > -- Dave Weinbaum in National EnquirerMessage-ID:
> <3659AC56.238E2AAF@gte.net>
> >Date: Mon, 23 Nov 1998 10:41:26 -0800
> >From: Joe Curry <spitlist@gte.net>
> >Organization: Curry Enterprises
> >X-Mailer: Mozilla 4.06 [en] (Win95; I)
> >MIME-Version: 1.0
> >To: Huw Upshall <hupshall@wolfenet.com>
> >Subject: Re: Overdrive
> >References: <Pine.OSF.3.95.981123102511.1894A-100000@gonzo.wolfenet.com>
> >Content-Type: text/plain; charset=us-ascii
> >Content-Transfer-Encoding: 7bit
> >
> >Huw,
> >Interestingly enough, I am in the process of installing an overdrive in
> >Huxley (my red Mk1).
> >
> >I am using a 3-rail tranny from a MkIV Spit but the later single rail
> >installs with the same modifications. Here's what is required:
> >
> >1. The OD Tranny (obviously)
> >2. A longer Speedometer cable
> >3. An angle drive for the Speedo cable (if not already on the tranny)
> >4. A different rear mount for the tranny.
> >5. A different mounting plate for the frame
> >6. The driveshaft must be shortened to take the longer unit.
> >7. A switch must be installed to control the OD. In the later Spits it
> >was a lever on the steering column, but you can mount a switch almost
> >anywhere. Mine is on the shift knob.
> >8. A little wiring modification and you are in business.
> >
> >As soon as I get My tranny back from Barry Nelson, you are welcome to
> >follow my own installation to see what difficulties I encounter.
> >
> >Regards,
> >Joe
> >
> >Huw Upshall wrote:
> >>
> >> Hey gang. OK. I took the transmission out of my spitfire yesterday and
> >> then thought pretty hard... I am debating on installing an overdrive
> >> transmission. This car came from the factory with a standard 4. So, if
> >> there is anybody out there that has put an overdrive into a spitfire,
> >> please answer these questions:
> >>
> >> Cost?
> >> What needs to be modified?
> >> What do you do about the relays?
> >>
> >> Installation steps from experience would be very useful. Thanks.
> >
> >--
> >"If you can't excel with talent, triumph with effort."
> > -- Dave Weinbaum in National Enquirer
> >
> >
> >
> Patrick Bowen
> '79 Spitfire
> Jacksonville FL
>
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