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79 GS - Flywheel Ring Gear Replacement (?)

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Old Jun 1, 2020 | 08:57 PM
  #1  
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79 GS - Flywheel Ring Gear Replacement (?)

When starting my near mint '79 GS, it sometimes made a noise like starter was not fully engaging gear with the flywheel ring gear (so a New Starter got installed)

Same Noise is now (again) sometimes still there

Mechanic says "Flywheel Ring Gear Needs Replaced" with action plan as follows:
- Transmission needs to be removed
- Clutch and flywheel removed
- Ring gear has to be heated and beaten off the flywheel
- New ring gear heated and pressed onto the flywheel

Does the above sound correct ??

Looking for advice -

Thanks -

Ron
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Old Jun 1, 2020 | 11:14 PM
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it's easier to just get another flywheel. have u looked at the ring gear to see if it does indeed have a bad spot in it?
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Old Jun 2, 2020 | 09:35 AM
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From: https://www2.mazda.com/en/100th/
it would probably be best to pull the starter and inspect the ring gear before you pull it all apart, chances of it being a bad starter are higher than the ring gear being bad.

EDIT: there is a little cover on top of the engine and you could remove that and inspect the gear

these days rebuilding the existing starter is better than the parts store "rebuilds"
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Old Jun 2, 2020 | 12:33 PM
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Waffles - hmmm good
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Thats a good plan for the mechanic, not for you. Try to look through the inspection hole as mentioned and rotate the motor slowly and look at the teeth. Also easier (and cheaper) to get a good used flywheel than to change the ring gear.
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Old Jun 2, 2020 | 12:36 PM
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From: https://www2.mazda.com/en/100th/
i've never changed a ring gear, but it looks pretty easy
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Old Jun 3, 2020 | 07:36 PM
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Thanks for the suggestions, Guys

This forum is absolutely grrrrr8 !!
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Old Jun 4, 2020 | 09:51 PM
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If required, and perhaps a better option, where could I purchase new flywheel?
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Old Jun 4, 2020 | 10:20 PM
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Highly unlikely you will find a NOS flywheel.
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Old Jun 5, 2020 | 08:43 AM
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Slowly getting there...
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Ebay might be quickest, or ask in the classifieds.
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Old Jun 5, 2020 | 09:12 AM
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chances of it being a flywheel or ring gear are remote, chances of it being a bad starter are high...
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Old Jun 6, 2020 | 03:40 PM
  #11  
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Or a 2nd bad reman starter...
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Old Oct 4, 2020 | 09:29 PM
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Flywheel ring gear replaced

All is well
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Old Oct 5, 2020 | 09:46 AM
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excellent!
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