OD switch in shifter knob?...

[Robin (UK)]

Hi Guys,

I've finally managed to find a working Shift-Rite shifter knob that I want to use as an overdrive switch for my P15 (I think the Shift-Rite was originally an aftermarket accessory for Mopar fluid drive applications).

The button sits with an open circuit that only contacts when pressed, so I'll need to use a 6-volt switching relay to open and close the OD circuit.

I think someone on here did something similar, using a microswitch on their shifter knob.

Can anyone give me the correct specification and or supplier information for the relay I need?

Thanks.

Robin.

[Don Coatney]

Robin;

Contact Pete (blueskies) Anderson. I believe he can answer your question.

[blueskies]

Hi Guys,

I've finally managed to find a working Shift-Rite shifter knob that I want to use as an overdrive switch for my P15 (I think the Shift-Rite was originally an aftermarket accessory for Mopar fluid drive applications).

The button sits with an open circuit that only contacts when pressed, so I'll need to use a 6-volt switching relay to open and close the OD circuit.

I think someone on here did something similar, using a microswitch on their shifter knob.

Can anyone give me the correct specification and or supplier information for the relay I need?

Thanks.

Robin.

Robin-

I detailed how I did mine on my website under the Transmission section. check it out at www.50plymouth.com

Pete

[Robin (UK)]

That's the info I remembered reading.

Thanks for pointing me in the right direction.

Now... I just need to find a 6v switching relay.

R.

[Young Ed]

Robin most of the 12v relays will operate down at about 7volts. Which is what your car produces when running. Dads got a 50 plymouth running a 12v relay for OD on 6v and it works just fine. We did some experimenting with a 12v relay I bought to operate my siren. It wouldn't trigger with my 6v battery charger but with my running 6v p15 we could get it to trigger.

[Robin (UK)]

I have a guy ready to build me a 6 volt flip-flop relay to use with my OD.

Does anyone know the the current draw through the governor?

Thanks.

R.

[james curl]

I believe that the governor is just a mechanical switch to ground to complete the circuit to the solenoid, at least that is what my manual states.

[BobT-47P15]

We did some experimenting with a 12v relay I bought to operate my siren. It wouldn't trigger with my 6v battery charger but with my running 6v p15 we could get it to trigger.

__________________

So, Ed, by having the relay - does the siren really get to cranking??

Sound like the cat when you step on it's tail??

[Young Ed]

Bob if I'd gotten it installed I'd let you know. The siren is huge and I haven't found a good place for it yet. The area in front of the radiator is really only accessible if you remove the radiator so I haven't gone that route yet.

[BobT-47P15]

My siren isn't very big......has room to kinda just hang around in front

of the radiator, behind the grille. I fastened it some way, but don't

recall how without looking. I think there must have been a cover over

the motor that is missing.

[Young Ed]

This thing of mine is pretty hefty. I think it'd fit in front of my radiator too if there was a good way to get it in there.

[BobT-47P15]

Mercy!! .......... that is a stout looking specimen allright.

I was able to work mine in without much trouble.

Just mount that thing on the fender then paint the car red

and put fire dept signs on the doors. I bet you'd have the

only one like it.

[Young Ed]

I've thought about it. I've already got this bracket mounted on the pass running board. I haven't found the item that goes in it but its supposed to carry a brush fighting backpack with a hand pumped water sprayer.

[hkestes41]

I've thought about it. I've already got this bracket mounted on the pass running board. I haven't found the item that goes in it but its supposed to carry a brush fighting backpack with a hand pumped water sprayer.

Ed,

You are looking for an "Indian Pack".

They still make these new by the D. B. Smith Co. http://thefountainheadgroup.com/indian-fire-pumps/steel/90g.php

I used these many times several years ago in my late teens and early 20's when I was a volunteer fireman in the small town in MO where I grew up. It was a family tradition started by my grandfather who was a founding member and fire chief of the Carl Junction Volunteer Fire Dept.

Not a lot of fun throwing roughly 50 pounds on your back and then heading off up and down hills through the brush in your firefighting gear. Walking with all this and your rubber boots was not easy. If you happened to fall you were kind of like a turtle on its back. Only way to get up was to take off the pack, get up and then try to get it back on again.

[Young Ed]

That looks like the right idea but my bracket is curved. Here's a picture before I identified it and painted it up. I decided the holes looked better filled so I just reinstalled it. Also the new ones at 217 and 352 are a little out of my budget. I'll keep looking for a used one

[hkestes41]

Ed,

The picture I posted is the "outside" of the Indian Pack. The side that fits against your back has the concave curve to it to fit against your back.

[Young Ed]

So it does fit in that pickle shape? Do I have my running board mount backwards then?

[hkestes41]

So it does fit in that pickle shape? Do I have my running board mount backwards then?

Yes it fits in the pickle shape.

We had ours mounted to an old Army Surpluss Dodge Weapons Carrier we had converted to fight brushfires by placing a large tank in the back with the pump on the front bumper in front of the grille. The bumper was extended with diamond plate filler and a rail so that you could ride the front bumper with the hose while the truck was driven through the fire area.

The Indian Packs were mounted high on the flat top of the sides of the truck with the curved portion of the holder facing out away from the truck. This allowed you to back up to the truck, put your arms through the straps like putting on a backpack and walk away with the Indian Pack on your back.

Here is a picture of the "inside" or the side that goes against your back. I would think that this would be the side you would want facing away from the bed of your truck.

Oh and for a little bling, the older Indian Packs were often made of brass and some of stainless like the one below, which could be polished if you wanted to.

[Young Ed]

Nice I'll hopefully stumble across one of those someday. I have seen one here and there on ebay but they are spendy to ship and people like to bid up the brass ones. So for functionality I have mine mounted the proper way. But for looks I might want to flip it.

[BobT-47P15]

Ed......I guess I may have misunderstood where you want to use the

siren. I was thinking your coupe. But after the last few posts,

maybe you're thinking about for the truck..........

You might check for that Indian pack with various small volunteer

fire departments you encounter. Maybe they have some extras

not needed. Sometimes I think they receive surplus stuff from the

government.