924Board.org

[Cruzebabuze]

Hi everyone, my name is Arno and I am a professor at A.S.U. Down in Az.
I bough a 1977 Porsche 924 for my son 16 birthday. The car was built in 1977 and it is the 150 Porsche 924 sold in the US with only original 34000 miles on it. The car stayed in storage for around 15 years then a kid bought it and brought it in as but he could not get it to start. I bought it from that kid for really cheap and then started to fix it.
I rebuild the CIs and change the injection lines, did the head gasket and also the flex on the break. And you know what the car started very well but needed adjustment, was running too rich, so I went around the block, easy on it, ran great, then park it again, start tuning it up, got an ok result then stop it. 30 minutes later I tried to start it again and got a weak starter twice, then no more starter just a click from the starter but the starter does not go, I thought it was the starter so I got a used one and put a brand new selenoid on it, put it back and it click the same way. By the way I check the motor with a key and it turns fine, so no problem here.
I took it out again and started testing of the starter wires to see if there are any power. The thing is in that saga I kind of forget the way to attach the wires to the starter, I am pretty sure they are right but not sure. The thing is I have the big strap ground, 2 smaller red wires, and one small hot wire. I am not sure what the 2 smaller red wires though they are bigger than the small hot one.

I have a video that I have posted on YouTube so you can see what's up:

http://www.youtube.com/watchv=CJcknPHLTD8&feature=youtube_gdata_player

What happen is that:

The starter engage but does not keep spinning??????
So I check the wires Turing the key to engage the starter:

I touch using a test light all the ground and hot wires but I am not getting anything at all??..
I have heard that 924 are notorious for bad ground, so I ran a new ground directly from the battery neg to the starter and tested it with the light test:

When I test the new ground with the small hot I get a light, but if I use the new ground with the 2 red wires that I do not know what they do I get no light, also if I test the small hot and the small ground (not the new big one I installed) I get nothing. It seems to me that I am not getting ground or/ and some of the hot also. The battery is new and is tested working properly. It must be a fuse, relay, ingnition module not working properly. So I am stuck and would gladly take advise from the pros here, remember that I am a newbe with Porsche. Please watch the YouTube video for info on the problem, remember that in the YouTube video the big red cable is in reality a new ground, just did not have a black one that long)

I really appreciate all help as it is for my kids bday and I need to get going,

Sincerely

Arno
_________________
1977 Porsche 924 starter wires problem
1976 Corvette L82 purring like a tiger
2012 Audi TT running like a bat out of hell

[Ozzie]

http://www.pelicanparts.com/944/electrical/944_electrical_diagrams.htm

This should help a little.

The starter body earths through the motor
A = battery
B = Starter
C= Alternator

The red/black comes from the ign switch and the small black goes to the ign circuit.
The large black marked 16 going to terminal 30 is a 16mm cable positive from the battery. Two reds go from there to the alternator.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

[Cruzebabuze]

Hi there, while you were answering Just like you posted I figure out that the big red one should be the direct pos from the battery and check it and it was loose from the battery, impossible to see with the shrink wrap on the cable. But yes you are right, I clean and fix it properly and it went perfectly. Thank you again for your help,

Sincerely
_________________
1977 Porsche 924 starter wires problem
1976 Corvette L82 purring like a tiger
2012 Audi TT running like a bat out of hell

[Cruzebabuze]

[Cruzebabuze]

Hey thank you for your help, I checked the diagram and reworked it properly put it back in and it started first time around

Now at the Same time than changing the starter I changed the oil filter and put a new one the old one was just really bad. Now when I start my car it smokes white smoke from the exhaust, it was not doing that before I got the new oil filter in, what's wrong with it, too much oil, too much gaz?

Thank you in advance

Arno
_________________
1977 Porsche 924 starter wires problem
1976 Corvette L82 purring like a tiger
2012 Audi TT running like a bat out of hell

[sciroccosteve]

could be coolant. smell it, and if you can: taste it.

if it smells like gas: too rich. If it smells like collant...uh oh, and if it smells like nothing: could be running to lean.
_________________
1979 924
2000 V6 Passat
"Let the fools have their tar tar sauce."
C. Montgomery Burns

[Cruzebabuze]

Hi there and thank you for helping me

At first when I started it up after no running for a while, it started smoking and even spitting a little water

I though the head gasket was bad, but I thought that i just changed the oil filter and the car sat a few weeks without a oil filter, so I wonder if it was that and got the car running and after around 5 minutes the smoke was almost gone and the water was completely gone. After another 5 minutes the smoke was gone
So I decided to go around the block nicely, it went great, the car running much better than before (I had a cracked air intake boot, which I also just changed) the car was running smooth, so I decided to bring it back to my garage and adjust the idle, while putting it back a pound noise from the motor started, I right away checked it and it seems that the starter now is not shutting off while driving and shut off only when I turn off the car. Some of the wires must have come loose and are touching, probably the small black and the small red, what do you think?

Thank you very much in advance,

Sincerely

Arno
_________________
1977 Porsche 924 starter wires problem
1976 Corvette L82 purring like a tiger
2012 Audi TT running like a bat out of hell

[Harm]

Probably moist or condensation that settled in the exhaust.
Take it for a spin, hit the freeway and it might vanish.

…
…I see/read its gone; Good!
_________________
Porsche 924 NA 1982 LY7A/A3A3 _ Greater driving pleasure never harmed anyone.

[Cruzebabuze]

That is exactly what I tought and I think you are right after running it 10 minutes it disseapered, now I have the starter not stopping anymore, lol, wires must be touching, I have to take the starter out one more time, pain in the behind to deal with this starter, hard to reach properly. Anyone has an idea on how to adjust the small red and black wires without taking the starter out?

Thank you in advance,

Sincerely

Arno
_________________
1977 Porsche 924 starter wires problem
1976 Corvette L82 purring like a tiger
2012 Audi TT running like a bat out of hell

[Harm]

Hmmm… except for melting/rotting wires I haven't been down there for some time.
Just some thoughts:
a. Did you wire up the alternator correctly? See the diagram.
b. Would the white ignition switch at the steering column be interfering? Cheap replacement/fix, especialy if it hasn't been replaced already in the last …35 years?
HTH
_________________
Porsche 924 NA 1982 LY7A/A3A3 _ Greater driving pleasure never harmed anyone.

[Cruzebabuze]

Hum, I think I know what is the problem: I lost the screew for the small black wire that goes from the switch to the selenoid starter, so I used something similar but not metric and it is moving, I think this is it, I am going to take the starter out again right now to be sure, but first let me grab a beer or 2 to get going, taking in and out 3 times the Starter on this car in one day is a real workout without a lift, cheer everyone

Thank you to all of you,

Sincerely

Armo
_________________
1977 Porsche 924 starter wires problem
1976 Corvette L82 purring like a tiger
2012 Audi TT running like a bat out of hell

[Cruzebabuze]

Ok I took the starter out again and started to inspect wiring and harness, to my suprise I am an idiot I put the harness back too close to the motor, duh, and it slightly melted the small black and red wire at the same place and they were contacted, duh, so I cleaned up the whole thing and use capton tape and put som
E sleeve around it and outside the motor it worked very well, so I am going out to get the proper screew and put back the starter, cheer

Thank you to all of you for you help, I will keep you posted of my progress,

Sincerely

Arno
_________________
1977 Porsche 924 starter wires problem
1976 Corvette L82 purring like a tiger
2012 Audi TT running like a bat out of hell

[Cruzebabuze]

Ok I put the starter back in, and was very careful with the harness

Checked everything and it runs great, no problem what so ever

Victory is finally mine at least today right now, who knows what the future of Tia 924 will bring me,

Thank you to all of you for your help,

Cheer

Sincerely

Arno
_________________
1977 Porsche 924 starter wires problem
1976 Corvette L82 purring like a tiger
2012 Audi TT running like a bat out of hell