MonteHall

Car is a carb-converted 84.

Got the car without the od working. When it was converted to a carb by the dspo, he cut the entire wiring harness.

I re wired into the relay on the firewall with no results.
It's my understanding that the od requires a signal from the engine to let the unit know the car is running, and since my wiring was cut, I dont have that turn on voltage present.

When the car was running, I wired a temporary switch from the positive battery terminal to the pressure switch. Drove in second gear, flipped the switch and nothing.
The engine is in pieces at the moment due to a head gasket.

But I'm going to pull the od pan and see what I can do.

What can I do?

MonteHall

How do I test the solenoid?

DPC Racing

When you pull the pan make sure you have power to the solenoid then to the pressure switch I have seen the connectors fall off.try to find a shop manual it has all the info you need.If power is to the switches then you might have internal trouble inside trans.hope this helps some.
DPC

DPC Racing

ps it hard to run some of these test without engine running.
DPC

rodj

Not as such
but seeing the O/d was previously operated by the computer using speed and engine temp inputs
and that was only active while the engine was running ........

If the O/d is functional ;
a fused wire from a 12V source or a switch to control the O/d relay ( preferred method ) will make it operate fine

With the computer gone will make no difference

AJ123

http://www.skspeed.com/manual-transmission-shop.aspx

Talk to Brian.

MonteHall

so after some time under the car, I found the solenoid does nothing if 12V are applied to it. The pressure switch is good.

where can I find a solenoid?

AJ123

http://www.skspeed.com/images/ExplodedViewBoth.jpg
Part 72 or 74

MonteHall

Neither.
I pulled the solenoid and tested it.
It did not function.

AJ123

I have a dn 4+3 on the floor in my garage. Where is the solenoid located.
I saved all my parts when I replaced my transmission with a Keisler 600. If you can show me a picture of it I more than likely have one sitting here that works.

Steve

MonteHall

Heres a diagram


I would really appreciate it!

AJ123

Gone through everything in my garage can't find it. Will go to the shop in the morning and see if it is in the vet somewhere. It is up o the lift. My 4+3 is for sale on EBAY you can see my feet in the picture. Sale ends tomorrow. If I find the part it is yours. http://www.ebay.com/itm/300685092970...S:1123&vxp=mtr

If you have time check with SK speed. I am in California I will let you know by 900 hours if I find it.

Steve

MonteHall

on a side note,
my friend and I did notice, that as the operation progressed, we began smelling used gunpowder...

ProjectC4

I live about an hour away from SK and want to get my 4+3 rebuilt is SK the right place?

AJ123

Bryan will do it right the first time. Give him a call

That is if you want to stay with the 4+3

AJ123

Went through everything in the shop twice sorry can't find that part.

MonteHall

Thanks
damn... I guess I'll tear it down and see if I can fix it.

AJ123

Thats one of the problems with C4s getting parts.

Good luck

DPC Racing

I just don't know how you are going to test the trans without the engine running to turn the trans over to build pressure in the od pump,it was a given that the 12 volts direct to the connecter would by pass everthing.
Good Luck
DPC

MonteHall

Right, but I did find my solenoid doesn't work at all. At a minimum, that needs to be fixed.