Re: DeLorean speedometers: A new approach

[tobyp@xxxx]

Rich - The key question here would be whether there is a drive gear 
assembly behind that plug that could be used for driving a 
speedometer cable. The transmission casing was used for various 
transmission applications, but there may be a substantial difference 
in the internal arrangements. I have some transmission casing and 
internal components in stock, so I'll try to determine if there is 
any future for this idea. You are correct in that many cars have a 
speedometer drive in the tail housing, or elswhere in the 
transmission, depending on the layout. If the DeLorean transmission 
does have a drive gear behind the plug, and if the ratio is correct 
for our car's speedometer, then it could be possible. Let's have a 
look. As a side note, many new cars have an electronic speed sensor 
that uses rotation in the transmission final drive as the measured 
parameter, and then sends an electronic signal up to the 
speedometer. There is no mechanical link beteen the transmission and 
the speedo. Something like that has been discussed on this List in 
the past. I don't recall anything beyond the talking stage, however.

Toby Peterson VIN 2248 (Winged1)
DeLorean Parts Northwest, LLC
www.delorean-parts.com


--- In dmcnews@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
> My experience with automobiles has shown me that the speedometer 
> normally taps into the transmission via a cable with a plastic gear.
> 
> The transmission is always throwing around lubricant inside, 
> lubricating the gear. Speedometer failure is fairly rare in other 
> cars.
> 
> On the casing of the DeLorean manual transmission I noticed 
> a "blanking plug" that looked like a point where your typical 
> speedometer cable would go. For those of you familiar with the 
other 
> applications of the DeLorean transmission, is that what this is 
for? 
> 
> Did other vehicles tap the transmission for the speedometer?
> Isn't running a speeometer cable through the frame feasible?
> What are the automatic transmissions like? Do they have a tie-in 
> point for a speedometer cable?
> 
> I'm no concours competitor but I try to keep my car stock when I 
can. 
> I realize this is a big departure from that. I'm hoping DMCH's new 
> angle drive is more reliable. If not, this is a change I would 
> consider making if possible.
> 
> I look forward to your comments.
> 
> Rich A.