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Which way does a Subaru starter motor spin?

Posted: Fri Jul 27, 2007 8:06 pm
by DragoTheHun
Which way does a Subaru starter motor spin?

I own a '99 Subaru Outback and note the starter mounts from the rear through the belhousing onto the ring gear. Conventional engines have the starter motor mounted parallel to the engine block and face back towards the belhousing / ringear.

I figure therefore, that Subaru and VW beetle starters turn the opposite way to other "conventional" starters.

If this is true, I need one as I'm setting up a marine diesel engine which has its flywheel and ring gear on the front instead of at the back. (I got a starter off a Mazda 121 but it turns the wrong direction - its Counterclockwise).

Can anyone verify which way round the starter from a sports wagon (for instance) turns?


Thanks

Posted: Fri Jul 27, 2007 8:08 pm
by theclick
Can ya switch the polarity on the 121 One? Dunno if that would work.

Hopefully someone here can help you

Posted: Fri Jul 27, 2007 8:15 pm
by Matatak
engines turn clockwise on subarus and msot cars (except hondas)
so for the starter to allow the engine to turn clockwise it must turn anitclockwise

Edit - the starter spins anticlockwise when everything is in and ur looking form the front of the engine bay lol confusing the way i put it i no
but yer if u imagine ur looking form behind the g/box then it wuld be turning clockwise

Posted: Fri Jul 27, 2007 8:16 pm
by DragoTheHun
Yes the polarity can be swapped but in the mazda starter motor's case, there is a spiral spline throw-in as well as the solenoid and the reversed direction of turn makes the pinion gear assembly try to retract once the armature shaft starts spinning. Besides that the motor has 4 poles and 3 brush boxes so it gets a little tricky to reverse the polarity of the poles vs the brush gear.

Nice try though ...

Posted: Fri Jul 27, 2007 8:18 pm
by DragoTheHun
OK, clockwise, so is the starter in a sports wagon mounted from behind the belhousing?

Posted: Fri Jul 27, 2007 8:26 pm
by Matatak
sportswagon beign like an L or MY series then yes not sure if there is other sportswagons or wt but yer as far as i no teh Ls and Mys are the same all mounted thru the box

Posted: Fri Jul 27, 2007 8:33 pm
by Gannon
Yeah all subarus starter motors will be mounted the same.

Posted: Fri Jul 27, 2007 9:19 pm
by DragoTheHun
Thank you fellas for your prompt responses.

Considering your responses and playing with lots of drawings of counter-rotating gears, I'm gonna buy a used Subaru starter motor. I must have just been dead unlucky in buying the Mazda 121 starter which spins clockwise.

Thanks heaps