[MR2] MK2 Turbo Speedometer problem
dkchal at datasync.com
Fri Sep 11 01:17:23 EDT 2009
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
> 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
> --- 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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