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PostPosted: Wed Sep 29, 2021 8:01 pm 
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Tadpole

Joined: Mon Aug 23, 2021 9:51 am
Posts: 1
Having started issues, starter keeps spinning when engine cranks up, replaced the ignition switch, just ordered a new starter relay, and cap/rotor, it's a 96 4.3 2bbl mercruiser...any suggestions?...


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PostPosted: Thu Sep 30, 2021 7:54 am 
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Joined: Sat Apr 30, 2011 9:19 pm
Posts: 219
Location: San Antonio, TX
I would pull the starter and make sure there is no rust or other obstruction causing the bendix gear to get hung up. That's the little gear that pushes outward on the starter motor shaft that engages with your flywheel (in case you didn't know, sorry if you did).

Sounds like there may be a bit of rust/corrosion on the starter motor shaft and the gear just can't disengage from the flywheel.

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1999 180 Horizon OB Fisherman Pkg
San Antonio, TX

Choice of tow vehicle:
'93 Explorer 4x4 (sold)
'05 Grand Cherokee 4x4 w/ 5.7 Hemi (member of the 240k+ mile club!)


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PostPosted: Fri Oct 01, 2021 6:15 pm 
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Joined: Thu Jun 29, 2006 10:26 pm
Posts: 5583
Location: Long Island NY
Yep it sounds like corrosion is preventing the starter gear from retracting but first make sure the ignition switch is actually going from the “start” to the “run” position when you release the key.

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88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II


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PostPosted: Sat Oct 02, 2021 7:41 am 
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Joined: Thu Jul 26, 2012 8:16 am
Posts: 293
Just be careful removing the starter......dragons live down there :) (inside joke but there is a pretty well documented history of the starter bolts seizing up)

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1998 four Winns Horizon H200
Volvo Penta 4.3 GL
Newtown, CT
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PostPosted: Mon Oct 04, 2021 8:15 am 
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Joined: Thu Jun 29, 2006 10:26 pm
Posts: 5583
Location: Long Island NY
Ahh yes I remember that story & your ingenious solution for the evil bolt!
I have changed starters 3 times since I’ve had this boat and never had a problem with the bolts. Last time I replaced my old heavy Delco direct drive unit with an Arco PMGR starter and these units are lighter smaller easier to install draw less current and crank faster. But you MUST use the right length bolts! Using bolts even a hair to long will cause the starter to shift under torque and that is what breaks starter bolts (that and hydro locks)! So any new starter you buy make sure to use the right bolts.

_________________
88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II


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PostPosted: Mon Oct 04, 2021 4:59 pm 
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Joined: Thu Jun 29, 2006 10:26 pm
Posts: 5583
Location: Long Island NY
https://www.dropbox.com/s/96owmuz0kdwvl ... D.JPG?dl=0
here's the size difference between the old and the new.....

https://www.dropbox.com/s/225cslpy0sxv9 ... d.jpg?dl=0
Arco PMGR starter installed

_________________
88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II


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