[TR] Lightening TR3 Flywheel

[Jonas Payne]

I have had 3 lightened to the tune of 6# or so.

The machinist in every case indicated that it was the softest steel he had
ever seen and was very concerned about taking off any more than that.

Jonas Payne
PBR Consulting Services, LLC
702.882.6711


-----Original Message-----
From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of Randall
Sent: Saturday, January 9, 2016 2:42 PM
To: 'Bill Brewer' <billbrewer59 at yahoo.com>
Cc: triumphs at autox.team.net
Subject: Re: [TR] Lightening TR3 Flywheel


>      ISTR that there are instructions somewhere on lightening a stock 
> TR3 flywheel. Anyone on the list have it? I don't have Kastner's 
> competition prep book. I did find a grainy instruction diagram in 
> Vizard's competition prep book.

Here's what I have.  The Kastner books I checked don't give details for
lightening. 

You might try talking to Joe Alexander.  ISTR he said he had a shop that
knew how to remove 7 lb or so.  He did a run of lightweight steel flywheels
made, but I think they're all gone and I've not heard that he plans to get
more made.

Of course, there's always the alloy Fidanza, available through Summit and
others.  I've been very happy with mine, but there are some concerns so that
may be more than you want for your Morgan.  The racers seem to have a hard
time keeping them on the crank, but that hasn't been an issue for me on the
street.  I still had to heat it up with a torch to get it off the old 3A
motor, after roughly 50K miles.  (The instructions note that it is a light
press fit onto the crankshaft and suggest using heat to remove it.)

Randall