In a message dated 11/21/02 12:05:57 PM Eastern Standard Time,
Pasgeirsson@worldnet.att.net writes:
> This is not a particularly good practice.
>
> Ring gears have a depressions machined on one side of the inner surface.
> This
> matches with a raised ridge on the flywheel so it form a lock. This is
> partly
> responsible for the ring gear being locked into position on the flywheel.
> The
> other is of course a good shrink fit.
>
> When you turn the ring gear over and install it backwards, this groove lock
> no
> longer matches. Might also be destroyed in this pound it back on with a
> BFH
> after insufficient heating. Now there is the possibility of the ring gear
> shifting on the flywheel when the lucas inertia drive starter gear slams
> into
> it. It will shift enough sometimes so it might rub on the oil pump cover.
> Makes
> a lot of noise so is a pretty good warning device!
>
> Of course then you can remove the starter and pound the ring gear back into
> it's
> non locking position where it will stay for another short stay, then
> starter
> reinstall, ad infinitum!!
>
> Now, of course, you have a flywheel with a damaged lip, so it won't likely
> work
> well with a new ring gear installed properly!!
Gosh, is the sky falling? I have had it turned for about 4 years or so and
it works perfectly. This was suggested by the machine shop that I use and
they are the ones who did the turning. It is a racing engine shop.
Apparently the ridge and the depression engage either way. And it is a
1500--perhaps it is different from the 1275? But it works very well--as
good as the other way around.
--David C.
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