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Home > FAQ / Knowledge > Flywheel Ring Gear Differences- Inertia / Pre-engaged starter motors

Tom Fenton
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Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

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This info from another post placed here for future reference.

On 17/04/2006 10:54:23 Axel said:

The problem is that there are two different types of starters, inertia and pre-engaged.

There are also two different type of ring gear, 107 or 129 teeth for the inertia and pre-enegaged starter respectively.

There are also two diffrent types of flywheel, verto or pre-verto. These were fitted with the 107 or 129 teeth ring gear at the factory dependant on starter to be used.

I think it all went pre-engaged and verto from the mid eighties, but before that they were using inertia starters, 107 teeth flywheels on verto flywheels.

To cause further confusion, aftermarket sources are fitting pre-engaged 129 teeth ring gears to pre-verto flywheels!!

It does not necessarily follow that if you have a non-verto flywheel that you should use an inertia starter and vice-versa.

You need to count the teeth on the ring gear and use the appropriate starter.

Edited by Tom Fenton on 17th Apr, 2006.


On 29th Nov, 2016 madmk1 said:


On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else


Like fuel 😂😂


Dangerous

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good info here

http://www.minimania.com/ArticleV.cfm?DisplayID=895


Metro turbo weekend driver,Mini turbo in the making again!


Home > FAQ / Knowledge > Flywheel Ring Gear Differences- Inertia / Pre-engaged starter motors
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