[TR] Name that distributor (TR3)

[Art McEwen]

Well Moss has a lt lead that will work with that plate but when I go to switch the 1 month old points/condenser from the old plate to the new one I find the new one doesn't have a pivot post for the points assembly grr.


So now I have to pay shipping for new points ('cause they didn't tell me that when they explained the plate difference).


https://www.dropbox.com/s/locovgzt497v9zg/IMG_0782.JPG?dl=0



On 10/15/18, "Art McEwen"  <amcewen2 at cogeco.ca> wrote:
> Thanks Randall,
>  
> Yes they sent me LU422318 according to the packaging. It appears from britishvacuumunit.com that that part along with LU54413549 (moss 153-640) might work, although it's not clear from any of the photos if that terminal connector is meant to fit *over* the fork of LU421078 or *instead* of the fork. 
>  
> To further complicate things the internal contacts on my "up style" distributor cap are pretty crappy and I have a brand new sideways style unit I picked up somewhere, but that means new leads. sigh....
>  
> Art
>  
> On 10/15/18, Randall <tr3driver at ca.rr.com> wrote:
> 
> >  40480D is an earlier model DM2P4 distributor. The information I have handy
> > says 40480F (which is functionally the same and still DM2P4, the letter is
> > just a revision level) was used as late as 1959 TR3, some of which were sold
> > in 1960.
> > 
> > That same database says cars built in 1960 got 40698A/B, which is still a
> > DM2P4.
> > 
> > The Moss catalog is certainly misleading, as they show a drawing of the
> > plate for a DM2P4, but the listing says it is for a 25D4. They have no
> > listing for the earlier part (which I assume means it is not available). I
> > believe the equivalent part number at TRF would be LU421078, which they have
> > listed as NLA. You might check with Revington, he seems to source a lot of
> > parts the others can't find.
> > 
> > Faced with that same dilemma some years ago, I fabricated a mount for the
> > low tension lead that worked quite well. Just a stack of pieces of bare
> > fiberglass printed circuit board (from the scrap bin, no copper plating),
> > carved with a Dremel to fit snug but not too tight in the slot in the
> > distributor cap. A small bolt through the center linked the two wires.
> > IIRC I used 3 pieces of PC board, one smaller to fit inside the notch and
> > two slightly larger to fit on either side of the notch. A little extra work
> > to install the cap, as I had to hold the side wire to position the new piece
> > in the slot, as I lowered the cap into place, but not too bad.
> > 
> > Later, I switched to a (used) 25D4 distributor.
> > 
> > -- Randall 
> > 
> > > -----Original Message-----
> > > From: Triumphs [mailto:triumphs-bounces at autox.team.net] <triumphs-bounces at autox.team.net]> On 
> > > Behalf Of Art McEwen
> > > Sent: Sunday, October 14, 2018 7:19 PM
> > > To: triumphs at autox.team.net
> > > Subject: [TR] Name that distributor (TR3)
> > > 
> > > Hi 
> > > 
> > > 
> > > The backing plate on my TR3's distributor has a lot of play 
> > > in it so timing is problematic. I ordered a new one from 
> > > Moss however that part (551-055) doesn't have the same tall 
> > > attachment for the low tension lead leading outside the cap 
> > > (see old unit on the left): 
> > > https://www.dropbox.com/s/wzxo5gpd3tnuaei/IMG_20181014_1038057
> > > 63.jpg?dl=0
> > > 
> > > 
> > > The distributor is stamped 40480D (see below) which doesn't 
> > > seem to be within the range of their 25D model matching (if I 
> > > go down the electronic replacement match-up rabbit hole). 
> > > https://www.dropbox.com/s/s1ghm1wradmp3xw/IMG_20181014_1047562
> > > 91.jpg?dl=0
> > > 
> > > Do I have a non-standard distributor? Any idea the right 
> > > part # for my backing plate? Or should I just bite the 
> > > bullet and go electronic?
> > > 
> > > Thanks,
> > > 
> > > Art 
> > > 1960 TR3A TS64989LO 
> > > 
> > 
> > 
> > 
>   
>  
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/triumphs/attachments/20181016/a81cb818/attachment.html>