[DMCForum] Re: Input shaft coupler

[Marc Levy <malevy_nj@xxxxxxxxx>]

What was the cost on the upgraded coupler??


--- tmpintnl@xxxxxxxxx wrote:
> 
> 
> Marc - No, it only twisted off the relatively soft
> coupler and 
> sheared the roll pin.  The input shaft was fine, but
> the transmission 
> main shaft was ruined by the fragments of the roll
> pin gouging the 
> splines in the shaft.  The OEM coupler is thought to
> act as a sort 
> of "structural fuse" that will shear out to prevent
> an overload 
> condition in the main shaft, or elsewhere in the
> transmission 
> gearing.  Unfortunately, this "fuse" has failed a
> few times now, but 
> has in fact ruined the main shaft that it was
> designed to protect.  
> My goal with the new coupler was to give the
> strength of the internal 
> transmission parts the "benefit of the doubt".  I
> believe that the 
> transmission is good for higher loads than the
> coupler can allow 
> for.  Darryl Tinnerstet's car is a good example.  He
> sheared out the 
> coupler almost immediately.  He changed the coupler,
> and the car has 
> never had an issue with that area since.  BTW - I
> still owe you an 
> answer regarding the input shaft ... You were asking
> about a stronger 
> input shaft that also had an extended nose so that
> it would be able 
> to engage the pilot bearing in the crankshaft.  I
> believe that a "one 
> off" shaft would cost around $350 or so.  The
> per-piece price comes 
> down when there is some quantity involved.
> 
> Toby Peterson
> DeLorean Parts Northwest, LLC
> www.delorean-parts.com


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