The easiest way to remove the ring gear is to hacksaw through as far as
possible and (without touching the flywheel) and split the remaining metal
with a chisel, one sharp tap usually does it, this is the way most mechanics
in the UK would have removed them.
As far as heating the new ring gear, we always used to bring it up to
temperature by placing it on bricks and continuosly circling an oxy
acetyline torch around the gear until the metal took on the correct colour ,
unfortunately it is easy to exceed the correct temperature unless you have
previous experience.
However I no longer have access to oxy acetyline equipment so when I needed
to change the ring gear on my Alpine I waited till my wife (bless her) went
out and popped the gear into a VERY hot oven, the flywheel went into the
freezer and half an hour later the gear slipped straight on.
Paul
----- Original Message -----
From: "jumpinjan" <jservaites@woh.rr.com>
To: "Vladimir Broz" <svalpine@hotmail.com>
Cc: <piperbill@isp01.net>; <alpines@autox.team.net>
Sent: Sunday, September 07, 2003 11:03 PM
Subject: Re: Starting / Grounding problems
> Yes, one can rotate the gear so that the starter doesn't always hit the
> same teeth (I have noticed that apparently the engine usually stops at
> some common location in it's cycles and it's usually the same teeth that
> get the starter impact). The problem here is you can't get the ring gear
> to hot with a torch, otherwise it doesn't seem to cool to the original
> diameter and will walk off the flywheel. Look at some flywheels and
> sometimes there is a gap starting between the gear & the flywheel. To
> keep the ring gear on, usually it's okay to lay a small bead of weld to
> secure it.
> Look at the Rootes shop manual and you will see that the removal is to
> use a gas torch on the damaged ring gear. However, to heat up the new
> replacement gear, a hot oil bath is used and I think that's to avoid
> overheating the new gear.
> I don't understand "flipping" the gear over. The gear is only installed
> in one direction & shouldn't be installed backwards.
> Jan
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