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Re: 2630 flywheel timing bolt hole, with broken pin?

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Tim S

01-16-2013 07:35:08

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The original pin was soft, the big thing is not to forget and crank the engine with it's a locator, not a lock. I've god a 2030 out side waiting to come in..I'll look at it closer when I split it..

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01-16-2013 08:05:02

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 Re: 2630 flywheel timing bolt hole, with broken pin? in reply to Tim S, 01-16-2013 07:35:08  

Tim S said: (quoted from post at 08:35:08 01/16/13) The original pin was soft, the big thing is not to forget and crank the engine with it's a locator, not a lock. I've god a 2030 out side waiting to come in..I'll look at it closer when I split it..


There is just a little more to this story; I may be purging an anxiety I have had for many years.

Not only had I assumed the pin was broken off in the flywheel, I also assumed I had broken off a section of the flywheel.

In fact, every couple of years, I would call the dealer to find out how much a new flywheel was. Last check was $1000, up from 500$ a few years before.

What I saw though the timing plate access hole was a cavity or hole in the flywheel right next to the ring gear. The corners of the cavity are jagged and beveled, and to my untrained eye, looked like something broken-off.

Now that I have a better view, through the starter hole, I see these cavities are part of the flywheel design. I think there are 4 cavities on the edge of the flywheel, each 90 degrees apart.

The edges of the cavities are a little jagged and not a neat machined look. I would bet that the sharp edges were purposely beveled in some fashion, to reduce the chance of stress risers at those points.
This post was edited by chickenfriend at 08:13:40 01/16/13 8 times.

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