Peter Zaborski wrote:
> > From: Tomislav Marincic [mailto:TomAndKate@compuserve.com]
> > Sent: Thursday, March 11, 1999 6:57 PM
> >
> > The serial no. is 22/61753/004459
>
> Tom, I think the news may be good (especially in light of Bob Kamholtz's
> posting)...
>
> If it really is a TR6 O/D then I believe you have an A-type. J-types have a
> number with the pattern "25/xxxxx yyyyyy" (mine is 25/115876 002757 for
> example). The 25 represents the % reduction in engine rpm at a given speed
> when the O/D is engaged. The 002757 is a sequential serial number for the
> unit. The middle set of numbers represents the specific flavor of J-type it
> is -- other cars than TR6s used J-type O/Ds, so a few flavors do exist.
>
> I'm pretty sure the A-type O/Ds used the 22% reduction. Thus their number
> pattern would be "22/xxxxx yyyyyy". I am sure those on the list with A-type
> O/Ds will be able to confirm. Also, according to the Moss catalog, the
> TR250, TR5 and pre Mar/71 TR6 used the A-type with the 61753 middle number.
> Later A-type equipped TR6s used a 61985 middle number. (And for
> completeness, J-type numbers were 115838 for CF1 to CF35000, and 115876 for
> the rest -- again, according to the Moss catalog)
>
> Other ways to tell is to look at the solenoid -- the J-type has a (black
> usually) cylinder mounted horizontally and about the size of a coke can
> (little smaller maybe). I don't know what an A-type solenoid looks like but
> the parts manuals should have pretty good pictures. For one thing they are
> vertically mounted.
>
> I think you are in luck!
>
> ( I suspect others may attempt to give you contradictory information. This
> information may be combined with a seemingly kind and generous offer to free
> you of the burden of cleaning, testing and installing the unidentified O/D.
> Consider these offers at your own peril. ).
>
> Peter Zaborski CF58310UO
Tom,
22 is indeed the first sequence on an "A". To double check - hold your old
rubber
transmission mount up to the OD in question - if it is a direct bolt up then it
is an
A-type. The J-type used a much smaller type of mounting pad that is not
compatable
with the stock 250 mount.
Enjoy!
Regards,
Brian Schlorff '61 TR-4 '64 TR-4 '72 TR-6 '79 Spit
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