Spending for the Moldex then not fitting Carillo or similar rods is poor
economy in my view.
----- Original Message -----
From: "Richard Taylor" <tarch@bellsouth.net>
To: "'BOB KRAMER'" <rkramer3@austin.rr.com>; "'Jack W. Drews'"
<vinttr4@geneseo.net>; <FOT@autox.team.net>
Sent: Wednesday, August 25, 2004 1:53 PM
Subject: RE: Moldex crank
> Group,
>
> I too have just uncovered an arresting discontinuity in my
> crankshaft....number three journal at the aft connection to the
> throw...fairly clean vertical break. The connecting rod was still
attached
> to the journal. Nothing came apart.
>
> A Moldex crank might be a little over-kill for a motor which is not
revved
> over 5500 rpm, except something went wrong with this last one. It had 21
> races on it including 18 Enduros and another 9500 street miles towing a
> motorcycle trailer.
>
> Which leads me to two questions:
>
> 1. If one "does" a Moldex crank, is one then obliged to then cough up
the
> resources for Carrillo rods...and then go for some sort of special
pistons?
>
> 2. I have a totally unsupportable notion that my crankshaft failed
because
> of fatigue caused by harmonic flex. Several years ago I installed a
radiator
> fan and simply unbolted the old iron one. This left that 6" snout
wiggling
> out to the front of the engine. Was that a mistake? Should I install an
MGB
> harmonic balancer? If I have the crank, flywheel & clutch balanced
before
> installation, will this obviate the malevolent harmonic potential?
>
> On the other hand, now that I am down to a raw block, the temptation to
> forget economics and put together a bullet proof bottom end is pretty
> tempting.
>
> I look forward to your comments.
>
> Richard Taylor
> TR-4
> Atlanta
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