electrical and ignition Tii Cold Start Valve Bypass Button

[schoir]

There have been a couple of mentions of bypassing the cold start relay and hooking up a manual switch on the inside to trigger the cold start valve on a tii in recent threads.

 

Is there a DIY or step by step on installing one of these switches available?

 

Regards, Maurice.

[williamggruff]

It looks a bit like the photo in the link below.  The switch with the red label "SCHNELLERPISSER" (upper left) is for the cold start valve in Jynweythek Engineering Lemons tii.

 

http://www.flickr.com/photos/jynweythek/7681634382/lightbox/

[ray_]

It looks a bit like the photo in the link below.  The switch with the red label "SCHNELLERPISSER" (upper left) is for the cold start valve in Jynweythek Engineering Lemons tii.

 

http://www.flickr.com/photos/jynweythek/7681634382/lightbox/

 

I think you have a loose wire.

 

Good to see the emergency oxygen cylinder, tho.

 

Cheers,

[williamggruff]

I think you have a loose wire.

 

Good to see the emergency oxygen cylinder, tho.

 

Cheers,

You may have also noted the absence of the steering wheel and shift lever.  It's a totally drive-by-wire setup.

[FB73tii]

There have been a couple of mentions of bypassing the cold start relay and hooking up a manual switch on the inside to trigger the cold start valve on a tii in recent threads.Is there a DIY or step by step on installing one of these switches available?

 

Did your cold start relay die? That's why I did it--those tii relays are too damn expensive (current price for a 61311354686 is ~ $ 236.86). Pretty simple, just a couple wires, a fuse and a momentary push-button switch. In the winter I would just push it for a second while the car fires and then release. Fab up an angle bracket to mount the button and find a place to mount it. Under the dash on the left side works well, unobtrusive.

 

--Fred '69 & '74tii

Edited October 7, 2013 by FB73tii

[lilmo]

Just get a new one or fix the one you have.  Plug & play.

[williamggruff]

I think you have a loose wire.

 

Good to see the emergency oxygen cylinder, tho.

 

Cheers,

In the unlikely event of a water landing, the emergency oxygen cylinder is to be used in conjunction with the red emergency flotation noodle.

Edited October 7, 2013 by williamggruff

[schoir]

Did your cold start relay die? That's why I did it--those tii relays are too damn expensive (current price for a 61311354686 is ~ $ 236.86). Pretty simple, just a couple wires, a fuse and a momentary push-button switch. In the winter I would just push it for a second while the car fires and then release. Fab up an angle bracket to mount the button and find a place to mount it. Under the dash on the left side works well, unobtrusive.

 

--Fred '69 & '74tii

Fred:

 

Yes, my cold start relay died, again.  It looks like the circuit board's solder traces have flaked away in three or four places and I am going to attempt a repair.  Soldering in a strand of wire on top of the board looks like it might make this particular one whole again.

 

Here is a photo of that circuit board, showing the three sections that have flaked off.  I have already cleaned those spots in preparation for the solder bridge on strand of wire in the spots indicated by the green arrows.

 

 

In case it doesn't I'd like to have a back-up solution such as the one you suggested.

 

Regards, Maurice.

Edited October 7, 2013 by schoir

[lilmo]

Did your cold start relay die? That's why I did it--those tii relays are too damn expensive (current price for a 61311354686 is ~ $ 236.86). Pretty simple, just a couple wires, a fuse and a momentary push-button switch. In the winter I would just push it for a second while the car fires and then release. Fab up an angle bracket to mount the button and find a place to mount it. Under the dash on the left side works well, unobtrusive.

 

--Fred '69 & '74tii

That's less $ than a set of tires, and it will last 30 years.  

[FB73tii]

That's less $ than a set of tires, and it will last 30 years.  

 

My cold start button is just to the right of the red ignition switch. I spent my $236.86 on other car parts. FWIW, I'm lucky to get 20 hours out of a set of tires. Notice original emergency flasher button at bottom of instrument stack. Brake line pressure gauges above that. Original shift knob from my '73tii. And a bunch of non-BMW parts. No emergency oxygen tank, though

-FB73tii

 

Edited October 8, 2013 by FB73tii

[ray_]

If you drove a bit more carefully, those tires would last longer.