Remote start engine from engine bay area?

[Falk930]

Hello, after installing a few mods + a clean up of my engine bay (930),
I need to start my engine after a few years again.
To make things more easy and not let the girl or a buddy turn the key,
I like to build a small cable with a switchboard to crank the engine
controlled by myself from the engine bay.

I did a search on this, but probably my vocabulary returned no results.
I am sure this was done before, is there any "how to" available?

Thanks
Falk

[kodioneill]

Momentary push button switch tied to a relay. Fused power to the relay tied to the yellow wire on starter with a spade terminal.

[911pcars]

Looks like that'll work. Here's some more info:

Remote Starter

S

[boyt911sc]

Falk,

There are several ways to energize the starter but the key is supplying power to the solenoid (yellow wire). Some use relay and others don't, like what what we have on your car. Power comes directly from the battery through the ignition switch.

You could easily access the yellow wire going to the starter via the 14-pin connector or connect directly to the starter. Pick your choice. At the rear fuse panel at the engine bay, you'll have sources of 12-volt supply no need to run long line from the battery. A push button switch is ideal for this application.

Just curious. Why do you need a remote starter? Keep us posted.

Tony

[911pcars]

Originally Posted by boyt911sc

Falk,
"............Just curious. Why do you need a remote starter? Keep us posted."

A couple of reasons:
One-man compression testing
Bump engine to desired position for: dead timing, valve adjustment, etc.
Reduce wear of ignition switch (crank position)

Sherewood

[RarlyL8]

You can purchase remote starters at an auto parts store. I use them to bump the engine when timing and to test (pass/fail) the ignition switch.

[88911coupe]

I recently purchased one of these to track down a starting issue and eliminate the infamous "yellow wire" from the equation. However I kept wondering why you would not just connect the two large bolts on the solenoid then I realized that would only energize the starter motor and cause it to spin...it would not cause the solenoid to push out the lever and engage the starter gear teeth...correct?

[Jonny042]

Don't leave it in reverse......

[88911coupe]

or first...

[911pcars]

Originally Posted by 88911coupe

I recently purchased one of these to track down a starting issue and eliminate the infamous "yellow wire" from the equation. However I kept wondering why you would not just connect the two large bolts on the solenoid then I realized that would only energize the starter motor and cause it to spin...it would not cause the solenoid to push out the lever and engage the starter gear teeth...correct?

The solenoid is there, in part to move the pinion gear forward to mesh with the flywheel teeth and as a large capacity switch to simultaneously connect the battery to the starter motor.

In order to connect the battery directly to the motor, your remote starter switch must be of equivalent capacity less the switch contacts become overheated.

A permanently-mounted remote switch in the engine compartment, as suggested by Rarly, is quite handy for compression testing, valve adjustment, ignition timing and other tasks requiring semi-precise crank rotation or cranking the engine.

Sherwood

[Epic Erik]

Here's a thread on an amazing build with a remote start button in the engine bay. Control panel build starts on comment #30.

http://forums.pelicanparts.com/porsche-911-technical-forum/654029-3-6-itbs-ms3x-into-g50-carrera-story-so-far.html

[88911coupe]

Wow, that is an amazing engine build...forgot what I was looking for when I clicked on it! BTW, I have accumulated all the parts for Sherwood's remote starter...I was just trying to clarify my thought on why you would not want to just connect the two terminals on the solenoid...which is that it would prevent the solenoid from doing its job of pushing the starter gear into the starter ring.