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RoverP6B
Graham Ware

(10 posts)

Registered:
08/28/2008 09:59PM

Main British Car:
Mystery starter ring gear, Rover? Buick? Other?
Posted by: RoverP6B
Date: December 09, 2013 08:56PM

I have built a Rover V8 stroker motor using a Leyland P76 crankshaft and a P76 manual trans flywheel, based on a 3.9 liter LandRover Discovery block Now displaces 5 liters

The starter ring gear needs replacement, its not a P76 part and does not appear to be a Discovery part either

Size is;

312 mm ID
332.3 mm OD
10 mm thick
156 teeth

Any V8 boffins know what this is? I have asked D and D but he cannot source the part...

Graham Ware
flywheel1.jpg


roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Mystery starter ring gear, Rover? Buick? Other?
Posted by: roverman
Date: December 10, 2013 11:33AM

Graham, Is this externally balanced,(off-set weighted) ? OD = 13.08" but truly 321mm id. ? USA made or ? USA made, I would guess 300 Buick V8 ? Cast not billet ? I suspect small holes near od. are for pin weight, fine balancing,(popular with Buick). "Pioneer" of USA, has a dimensional, starter ring gear chart , very usefull. Good Luck, roverman.


RoverP6B
Graham Ware

(10 posts)

Registered:
08/28/2008 09:59PM

Main British Car:
Re: Mystery starter ring gear, Rover? Buick? Other?
Posted by: RoverP6B
Date: December 11, 2013 12:38AM

Art,
much appreciated, I will try and locate the Pioneer chart
The flywheel pictured is Australian made, a Leyland P76 Engine is a clone of the Rover V8 with some changes; the crankshaft stroke was 88.9mm and the crank, once it has had some machining done to the counterweights, makes for a Stroker motor in a Rover 3.9 Block However its running a Rover starter and the Rover/Buick flywheels have 156 teeth


best

GW



Edited 1 time(s). Last edit at 12/11/2013 12:50AM by RoverP6B.
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