[Fot] Moldex Crankshaft

[Mike Harmuth]

I went with a Moldex "ghost main" style crank last year and had to do a
small bit of block relief as well. It wasn't unexpected since this style
crank doesn't have the same profile as a stock crankshaft. I was working
with a "new" block anyway so I had the machine shop do a test fitting
before full prep and it really wasn't a big issue.

mike h

On Fri, May 1, 2020 at 6:36 AM yellow04 via Fot <fot at autox.team.net> wrote:

> FWIW, the Moldex crank I bought back back in the early 2000's has
> counterweights that foul the webbing in the block as well. I talked to
> Ken Gilanders about it, he said that is what you want, use an angle
> grinder to make notches in the block for clearance. I think you need to
> grind two, maybe three webs.
>
> It is much easier if you remember to do that before you take the block
> to the machine shop and get it cleaned!
>
> On 2020-04-30 18:29, timmmurphh--- via Fot wrote:
> > I ordered a Triumph TR4 billet crankshaft from Moldex by phone from
> > Joe Flowers in June 2017.  I received it in September 2017.  At my
> > next engine rebuild, in March of 2019, I installed the crank in the
> > prepared engine block.  It would not completely rotate as the
> > counterweight hit the engine block.  The counterweights had not been
> > completely machined.  I returned the crank to Moldex after a phone
> > call to Joe Flower to discuss the problem.  In about 2-1/2 weeks I
> > received the crank back.  I finished the engine rebuild, took the
> > engine off the engine stand and proceeded to bolt the flywheel on.
> > Only three of the four tapped holes in the crank were completely
> > tapped.  The fourth had about 2 or 3 threads and that is all. We broke
> > a tap off in the hole trying to manually tap it through. I again
> > called Joe, disassembled the engine, and shipped the crank back to
> > Moldex for completion. I received it back again in about 2-1/2 weeks.
> > Reassembled the engine and raced in three weekends in 2019, no
> > problems.
> >
> > I called Joe in April 2019 and asked to be reimbursed for the $130 in
> > shipping costs to ship the crank back to him for completion, twice.
> > Since April 2019 I have called about 10 times to ask to recover the
> > shipping costs.  Twice I was told a check had been sent.  I have not
> > received the $130 as of this date.
> >
> > This is a cautionary tale for those who are thinking of buying a
> > billet crankshaft from Moldex.
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