For all C1's having a PG relay

[Roy B.]

I get calls asking me where can they get a PG relay #904, If you can find a NOS it can cost upward of $400.00 and used ones may be bad. So I tell people to locate a Chevy (over drive relay) and modifie it by adding a jumper wire and cutting the tag off to make it look like original ,here's how=
You hook the ground coming from the PG switch attached to the shifter to #4. The hot coming from the ignition to #3 with a jumper wire to #2,then the wire going to the starter to #1 when you turn the switch it will engage the relay only in park or neutral position.
Some original relays have the #904 on the back side so this will fool many judges. Hope I helped some one save money!
PS it's a good idea to carry a spare like this one , but if not connecting the key wire to the starter wire you can start the engine to get home.

[Joe R.]

Re: For all C1's having a PG relay

Thanks for the tip Roy. I have a passenger one (NOS) and will do the mod for a spare.

Keep 'em coming!

Joe

[Roy B.]

Re: For all C1's having a PG relay

Thanks for the tip Roy. I have a passenger one (NOS) and will do the mod for a spare.

Keep 'em coming!

Joe

Keep 'em coming ? I'm not that good it's just when some one ask a question and if I'm lucky I might know the answer. and I'm not always right!!

[Michael L.]

Re: For all C1's having a PG relay

Roy also told me how to "jump" my relay until I could get my switch on the trans adjusted properly, worked like a charm... I'm using a three prong model out of a Nomad, not correct number, but it works

[Troy P.]

Re: For all C1's having a PG relay

You lost me a bit on this one Roy. I can see what lug to cut off. But I can't figure out where the jumper wire goes. I assume it's under the sheet metal cover. Do you have a photo of the jumper in place? Which lug is #1, #2, #3 and #4?

Also I'm curious if a 12V overdrive relay could be so modified and used safely/successfully in a 6V Vette.

[Roy B.]

Re: For all C1's having a PG relay

You lost me a bit on this one Roy. I can see what lug to cut off. But I can't figure out where the jumper wire goes. I assume it's under the sheet metal cover. Do you have a photo of the jumper in place? Which lug is #1, #2, #3 and #4?

Also I'm curious if a 12V overdrive relay could be so modified and used safely/successfully in a 6V Vette.

Looking at the original relay on the fire wall left lug is #1 bottom # 2 right # 3.
#1 is from the key #2 goes to the starter # 3 comes from the PG

The four lug #2 and # 3 you jump them using a wire # 4 comes from the PG
The relay don't know it's a 12V or 6V it's used on both !
If your still lost in the woods I cant help you

[Troy P.]

Re: For all C1's having a PG relay

I get it, the two lugs that come out the bottom need to be jumped. Now I still wonder about using a 12V relay for this 6V application. As I understand it the starter relay carries the full current to the starter and don't know the wiring in the 12V relay is heavy enough to function properly. Anyone know?

[Troy P.]

Re: For all C1's having a PG relay

Anyone know if 836 (voltage unknown) and 876 12V four pole relays can be similarly converted to 3 pole starter relays. Also, anyone know what the original applications were for the 876 and 836?