what is this??? - Ferrari Life
 
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post #1 of 8 Old 01-31-2003, 04:52 PM Thread Starter
 
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what is this???

if you are looking at the oil fill cap on a 79'gts and you look directly in front of the cap at the carbs you will see a little electronic sensor of some kind. looks like the carbs linkage works a cam on it. it has a green and black wire on it. anyway i noticed that the green and black wires on the other end of this are disconnected. car still runs fine. just would like to know what im missing here.
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post #2 of 8 Old 01-31-2003, 05:45 PM
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OK, you came to the right place for the answer to this question! The distributors have 2 sets of points; a high speed set which is grounded directly, and a low speed set which is retarded 5 degrees and grounded through the microswitch you describe. This allows the engine to have the retarded ignition timing for a nice smooth idle and have the advanced ignition timing for more power the moment you step on the gas. (At idle the microswitch is closed and the low speed points control the coils, off idle the microswitch is open and the high speed points control the coils.)

I had a problem with my car several months after I bought it where it would lose power at idle and backfire (really loud). It was fine as long as my foot was in it, but really it was not drivable; every time I would let off the gas it would die and then catch and backfire when I applied throttle. Through the help of some of the guys on this forum the trouble was traced to the low speed points set. The remedy was to simply disconnect them. That is what has been done on your car. My car idles too high right now but is fine otherwise, it needs the timing turned down a bit. If your car runs fine then don't give it a second thought. You know what it is now.

The 308 has an ignition system that is marginal at best. Next month I am doing an ignition overhaul to my car which includes swapping it over to electronic ignition, new coils, wires, plugs, etc. I have been doing a lot of research and will keep you informed of my progress and results. The whole ignition upgrade will cost me around $500.

Capt. Pete
'79 308 GTS, '82 Jeep CJ7 Jamboree
"Time is what prevents everything from happening all at once."
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post #3 of 8 Old 01-31-2003, 05:51 PM Thread Starter
 
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wow! what are you upgrading to? i have a rx7 and the thing to do if you have the money is to go to a standalone ignition. but that is upwards of 2 grand. what mods are you doing to go to a electric ignition for 500 bucks? when the time comes i may be very interested.
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post #4 of 8 Old 01-31-2003, 06:07 PM
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Look at my post titled "308 ignition upgrades" in this section of the forum for a little history.

Check out Crane Cam's website at http://www.cranecams.com/
it is the XR3000 ignition that I am interested in purchasing. You can get them directly from Crane at $125 each. Coils are about $40 each and the wires are going to run me about $125. I haven't decided on the plugs but I think I will start out with the ones Magoo is using and see how they go.

Like I said, I have been doing some research and want the project to be a success from the moment I turn the key. Do it right, Do it once. Stay tuned...........

Capt. Pete
'79 308 GTS, '82 Jeep CJ7 Jamboree
"Time is what prevents everything from happening all at once."
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post #5 of 8 Old 01-31-2003, 06:24 PM Thread Starter
 
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i will. if all works out you will have to set me up with the play by play.
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post #6 of 8 Old 02-01-2003, 07:59 AM
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Quote:
Originally Posted by j brosseau
i will. if all works out you will have to set me up with the play by play.
I will. I am planning on documenting the whole job with the digital camera and will put it together as an article for Andrew's Tech tip section.

Capt. Pete
'79 308 GTS, '82 Jeep CJ7 Jamboree
"Time is what prevents everything from happening all at once."
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post #7 of 8 Old 02-01-2003, 08:16 AM
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Quote:
Originally Posted by Pete04222
Quote:
Originally Posted by j brosseau
i will. if all works out you will have to set me up with the play by play.
I will. I am planning on documenting the whole job with the digital camera and will put it together as an article for Andrew's Tech tip section.
Pete,
Sounds like a good plan. Of course it is the site's tip section, not mine. Good luck in the adventure it sounds like it will be fun.
Andrew
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post #8 of 8 Old 02-01-2003, 09:25 AM
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Quote:
Originally Posted by Enzo250GTO
Pete,
Sounds like a good plan. Of course it is the site's tip section, not mine. Good luck in the adventure it sounds like it will be fun.
Andrew
I stand corrected. OUR tip section!

Capt. Pete
'79 308 GTS, '82 Jeep CJ7 Jamboree
"Time is what prevents everything from happening all at once."
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