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DZGunner · Joined: 18 Nov 2014 Posts: 191 Location: Great white north

Hey guys. So i made a new wire harness for the starter and alternator and got it all hooked up nice and pretty/neat. I went to test that the engine would turn over with the key in the ignition and the starter def gets power and tried to turn, but immeadiatly locks up and wont turn anymore.

I got the car to turn over with the starter before by using a jumper wire going straight from the battery to the signal terminal on the starter. It turned over just fine then.

Sinse today was a failure i tried jumping from the battery to the starter signal wire to try and see if it was the starter or some other wires or parts in the car and it did the same thing, tries to move but binds up.

So this is dumb, but i have to ask, installing a starter is pretty straight forward right? you put it in place and put the two bolts that hold it in and the teeth should be meshed with the flywheel.

i just dont understand if this is a wiring issue but to me it seems like a binding issue, and the only thing i touched was taking the starter off and then back on.

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

Yeah, the starter doesn't even engage the flywheel unless the solenoid is energized.

Pull it out and test it on the bench (carefully). You might just have some bad luck.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

jason c · Joined: 13 Jan 2014 Posts: 1018 Location: Nwi

How was it acting before you changed the wiring? What wires did you change? Where did you run the wiring from/to? What size wires did you use?

A bench test may not tell you much, it may run on a bench but not have to power to turn the engine. However, if it won't spin on the bench with sufficient power its bad.

emoore924 · Joined: 13 Apr 2004 Posts: 2822

Did you change out the starter too? If so, I wonder if you got the right one. IIRC the turbo starter spins in the opposite direction from the n/a. Someone please correct me if not the case...

Also, the teeth should not be engaged at the flywheel until the starter starts spinning. Then the starter gear shoots out to engage the flywheel ring gear. So no, the gear should not engage the ring gear when you install the starter and its just sitting there, but should when you put power to it. If the starter gear is out, you have a problem with the bendix (?) which shoots the gear out to engage the flywheel ring gear.

leadfoot · Posted: Wed Jan 28, 2015 11:32 am Post subject:

are you definitely in neutral? and will the engine turn over manually via the crank pulley?
Stu
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1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

DZGunner · Joined: 18 Nov 2014 Posts: 191 Location: Great white north

I was in gear

I feel so dumb lol.

Sometimes I have my moments.

I replaced all the ground wires for engine to chassis and chassis to battery, also replaced the alt and starter wires, turns over a lot faster and has a lot less voltage drop than before. I think i had a full volt on the ground side before.

I have an off topic question now, i know these cars burn a lot of oil, via the intake, but im going to be venting the AOS to atmosphere, as this is going to be a fun day track type car so emissions are my last concern, but i had a lot of oil in the elbow at the blow off valve and was wondering if a turbo blew its seals if this would be an indicator, but i also know that the blow off valve plumbs to the lowest point of the intake so any of the oil that these things suck in would go there immediately, should i be worried? i changed out the rubber elbow because it was deteriorated from the oil and put in a 90 degree 4 ply silicone elbow in its place. also cleaned out the solid tube with carb cleaner to get rid of any built up crap.

Shurick · Joined: 15 May 2005 Posts: 524 Location: Russia, Moscow.

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

+1. . .run CCV especially on a track car!

I also like your theory that the oil you found dripped down from the manifold.

Can't endorse your theory, though, that "these cars use a lot of oil." Mine doesn't use a drop. Maybe "when these cars get 30 years old and have never been rebuilt they use a lot of oil."

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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

DZGunner · Joined: 18 Nov 2014 Posts: 191 Location: Great white north

Well to be fair my only experiences are with my daily driver 924 which is NA, and at one point it had so much oil in the intake boots i could pull them off and tip them and oil would slowly ooze out. I added a cheap bimmer AOS though and my intake has been dry sinse. So I guess with the turbo model having the AOS stock it may do its job exceedingly well.

So my air filter set up was jacked up and half missing when i got the car, so i improvised with a pod filter and an adapter that looks pretty damn slick. Anyways, because I don't have the old port where the AOS would normally plumb into, would it be safe to have it go to the port on the bottom of the fuel distributor where the EVAP line was? or do you think having a filter before that would be necessary.

Also why is it so necessary to have the separator plumbed into the intake, wouldn't the pressure force itself out?

I'm new to the turbo world and AOS's so im just not sure on some of these things. Used to have a 928 but had to sell because I just got in too much trouble with it. Guards red attracts cops like flies on shit.

Thanks for the replies too guys, I appreciate it.