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Charlane
Joined: 25 Jul 2005 Posts: 50 Location: San Antonio, TX
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Posted: Mon Aug 28, 2006 2:10 am Post subject: Starter Spins Without Engaging Once, Maybe Twice |
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And then starts the car. The car starts fine, with the exception of a few vacuum leaks but otherwise, this spinning of the starter without engaging is strange and annoying. It sounds like the gears aren't making contact the first or even second time and then it does but THESE ARE GEARS so that doesn't make sense to me. The gears aren't exactly dynamic like that. Thanks in advance. _________________ Electra is Here......
One 1980 924 Turbo
One 1990 KZ1000P (CHPS) Motorcycle
One 1984 244 Turbo Volvo (B21FT) (I installed this engine myself)
One 1977 240D Mercedes Benz
One 1970 Chevy Impala |
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Min

Joined: 04 Nov 2002 Posts: 2368 Location: Vernon, British Columbia, Canada
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Posted: Mon Aug 28, 2006 2:25 am Post subject: |
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Sounds like a sticky starter solenoid, if the solenoid doesn't move the starter gear forward into the flywheel ringgear, the starter will just spin.
Min _________________ Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting. |
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Ozzie

Joined: 12 Mar 2005 Posts: 4448 Location: Townsville, Qld. Australia
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Posted: Mon Aug 28, 2006 7:50 am Post subject: |
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Min is right.
The gear on the starter moves to engage the flywheel teeth.
This is done by the solenoid. _________________ Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance |
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Smoothie

Joined: 01 Jan 2003 Posts: 8032 Location: DE (the one near MD, PA, NJ)
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Posted: Mon Aug 28, 2006 8:41 am Post subject: |
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What's weird though is the part of the solenoid that pulls in (piston, armature, whatever you want to call it), first levers out the starters' gear to engage with the flywheels' ring gear, then at the end of its' travel it closes the switch to activate the starter motor. (If the starter motor is being activated, the solenoid should have already levered out the gear - that happens before the switch is closed.) -So it seems the solenoid is functioning correctly and the problem is actually with part of the starter itself (specifically the "Bendix"). _________________ "..it's made in Germany. You know the Germans always make good stuff."
'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox |
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Min

Joined: 04 Nov 2002 Posts: 2368 Location: Vernon, British Columbia, Canada
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Posted: Mon Aug 28, 2006 1:00 pm Post subject: |
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I'd suggest pulling the starter out and benchtesting it. I agree with smoothies diagnosis, If the solenoid isn't working, the starter itself wouldn't engage. I thought about that after I posted the first time.
Min _________________ Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting. |
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924RACR

Joined: 29 Jul 2001 Posts: 9075 Location: Royal Oak, MI, USA
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Posted: Mon Aug 28, 2006 10:52 pm Post subject: |
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The bendix drive may need greasing... remove, clean, and grease/check for proper motion... _________________ Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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