[MR2] MK2 Turbo Speedometer problem

[Donald Chalfant]

Its highly likely the nylon speedometer gear sandwiched between the pieces
of the ring gear has stripped.  Alas, the differential is the last piece to
come out of the transaxle.
----- Original Message ----- 
From: "Dennis McFayden" <mr2garage at yahoo.com>
To: "Aaron Bunch" <nitrusmr2 at yahoo.com>
Cc: "MR2 Email" <mr2 at mr2.com>
Sent: Thursday, September 10, 2009 11:12 PM
Subject: Re: [MR2] MK2 Turbo Speedometer problem


> Aaron,
>
> At least I hope that is all that is broken this time, the keyed pin. The
last time it was the pin and gear.
>
> I guess I will have to replace the right angle adapter thing. I have one
from a '89 SC. It sure looks the like the same device. I will have to check
the EPC.
>
> Dennis
>
> --- On Thu, 9/10/09, Aaron Bunch <nitrusmr2 at yahoo.com> wrote:
>
>
> From: Aaron Bunch <nitrusmr2 at yahoo.com>
> Subject: Re: [MR2] MK2 Turbo Speedometer problem
> To: "Dennis McFayden" <mr2garage at yahoo.com>
> Date: Thursday, September 10, 2009, 8:55 PM
>
>
> Your first guess is right. The right angle piece is binding and breaking
the keyed pin.
>
>
> Aaron Bunch ATS Racing http://www.atsracing.net
> 91 2.2 GT35R ATS Turbo MR2 - 607 rwhp @ 34psi
> 93 SMG Turbo MR2 291 rwhp @ 20.5 psi spare car
> 07 Tundra DC 5.7
>
> "Just because you have the money to buy one, doesn't mean
> you have the skill to drive one." Steve Neese
>
>
> --- On Thu, 9/10/09, Dennis McFayden <mr2garage at yahoo.com> wrote:
>
> > From: Dennis McFayden <mr2garage at yahoo.com>
> > Subject: [MR2] MK2 Turbo Speedometer problem
> > To: "MR2 Email" <mr2 at mr2.com>
> > Date: Thursday, September 10, 2009, 7:48 PM
> > This problem started when the
> > speedometer stopped working. My first test was to un-plug
> > the speedometer cable from the transmission. I used my drill
> > to drive the speedometer cable to check that component. The
> > speedometer responded which indicated that the cable was ok.
> >
> >
> > My next step was to try to move the end of the drive
> > mechanism. I found that I could turn the drive mechanism
> > without resistance. This was not a good indication. I
> > removed the right angle adapter and the part that held the
> > speedometer drive gear. I found that the pin between the
> > adapter and the drive gear had bend. This bending also
> > destroyed the drive gear.
> >
> > I figured that somebody most likely did not correctly
> > install the pin between the adapter and the drive gear. This
> > may not have been a correct assumption.
> >
> > After installing a new drive gear and pin I checked out the
> > system. I had the car on rear jack stands and let the rear
> > wheels spin. the speedometer indicated the correct speed so
> > I figured I had fixed the problem.
> >
> > Well I was wrong. When my son went to drive the car he
> > reported the speedometer was again not working. I made a
> > quick check; pulled the speedometer cable and found I could
> > again freely turn the pin in the drive adapter connected to
> > the transmission.
> >
> > Anybody had a similar problem, solutions are requested?
> >
> > My first guess is that the right angle adapter may be
> > binding and causing the damage to the drive gear.
> >
> > Dennis
> >
> >
> >
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>
>
>
>
>
>
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