[TR] TR4 question

[Jerry Van Vlack]

I believe the switch was made when TR4A's were introduced based solely on 
reviewing the applicable wiring diagrams and observation over the years. 
http://www.advanceautowire.com/tr24a.pdf

It would be pretty easy to convert a 4 to a 4A two speed with a 4A motor and 
switch. Also avoid the aftermarket wheel boxes and wiper arms but 
particularly the wheel boxes. With the slightest resistance to wiper action 
the serrated attachment will strip and the wiper arm will fly off at the 
worst possible moment. I've taken to using aluminum foil to shim between the 
arm and attachment to gain a tighter fit. My experience and shared by a few 
others that I know.
JVV

-----Original Message----- 
From: Anthony Rhodes
Sent: Friday, December 29, 2017 8:12 AM
To: triumphs at autox.team.net
Subject: Re: [TR] TR4 question

That's a good question! My 4A has a two speed motor. I do not know when they 
switched from single speed to two speed.

I guess the answer could be "check your wiring" and "how does your switch 
work".

If you have the switch, does it have a single pull detent or two detents in 
the pull?

For the wiring, there is an extra wire going to the motor that activates the 
slower speed. I am not sure exactly how it works to make it go slower! So if 
you have wiring that looks similar to the 4A wiring diagram, rather than the 
TR3 wiring diagram, then it probably is a two speed system that it is set up 
for.

Sorry I can't be morehopeful. I have a feeling that somewhere in the TR4 
range, they switched over to a two speed system!

-Tony

Sent from my 1837 Babbage Analytical Engine

> On Dec 28, 2017, at 2:00 PM, triumphs-request at autox.team.net wrote:
>
> Message: 1
> Date: Thu, 28 Dec 2017 13:43:46 -0500
> From: "Andrew Uprichard" <auprichard at uprichard.net>
> To: <triumphs at autox.team.net>
> Subject: [TR] TR4 question
> Message-ID: <009501d3800b$cc2a34b0$647e9e10$@uprichard.net>
> Content-Type: text/plain; charset="us-ascii"
>
> Putting a TR4 together and there is no wiper motor.  I do have a good 
> wiper
> motor from a TR3 (one-speed), so my questions are:
>
>
>
> Did the TR4 take the same wiper motor as the TR3?
>
> If not, what is different:  armature?  gear and shaft?
>
>
>
> Any help greatly appreciated!
>
>
>
> Andrew Uprichard
>
> Jackson, MI


** triumphs at autox.team.net **

Donate: http://www.team.net/donate.html
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Unsubscribe/Manage: 
http://autox.team.net/mailman/options/triumphs/jerryvv@roadrunner.com