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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@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@autox.team.net]
> > <triumphs-bounces@autox.team.net]> On
> > Behalf Of Art McEwen
> > Sent: Sunday, October 14, 2018 7:19 PM
> > To: triumphs@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
> >
>
>
>
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=3CDIV=3EThanks Randall=2C=3C/DIV=3E=3CDIV=3E=26nbsp=3B=3C/DIV=3E=3CDIV=3E=
Yes they sent me=26nbsp=3BLU422318 according to the packaging=2E=26nbsp=3B=
=26nbsp=3B It appears from britishvacuumunit=2Ecom that that part along =
with LU54413549 (moss 153-640) might work=2C although it=27s not clear f=
rom any of the photos if that terminal connector is meant to fit *over* =
the fork of LU421078 or *instead* of=26nbsp=3Bthe fork=2E=26nbsp=3B =3C/=
DIV=3E=3CDIV=3E=26nbsp=3B=3C/DIV=3E=3CDIV=3ETo further complicate things=
the internal contacts on=26nbsp=3Bmy=26nbsp=3B=22up style=22=26nbsp=3Bd=
istributor cap are pretty crappy and I have a brand new sideways style u=
nit I picked up somewhere=2C but that means new leads=2E=26nbsp=3B sigh=2E=
=2E=2E=2E=3C/DIV=3E=3CDIV=3E=26nbsp=3B=3C/DIV=3E=3CDIV=3EArt=3C/DIV=3E=3C=
DIV=3E=3CSPAN=3E=3C/SPAN=3E=26nbsp=3B=3C/DIV=3E=3CDIV=3E=3CSPAN=3EOn 10/=
15/18=2C =3CB class=3Dname=3ERandall =3C/B=3E=26lt=3Btr3driver=40ca=2Err=
=2Ecom=26gt=3B wrote=3A=3C/SPAN=3E=3C/DIV=3E=3CBLOCKQUOTE class=3DiwcQuo=
te style=3D=22PADDING-LEFT=3A 13px=3B MARGIN-LEFT=3A 0px=3B BORDER-LEFT=3A=
=2300f 1px solid=22 cite=3Dmid=3A0A6A4333BE9D494A946515E692B8272A=40LAP=
TOPM3GPCDH8 type=3D=22cite=22=3E
=3CDIV class=3D=22mimepart text plain=22=3E40480D is an earlier model DM=
2P4 distributor=2E=26nbsp=3B The information I have handy=3Cbr /=3Esays =
40480F (which is functionally the same and still DM2P4=2C the letter is=3C=
br /=3Ejust a revision level) was used as late as 1959 TR3=2C some of wh=
ich were sold=3Cbr /=3Ein 1960=2E=3Cbr /=3E=3Cbr /=3EThat same database =
says cars built in 1960 got 40698A/B=2C which is still a=3Cbr /=3EDM2P4=2E=
=3Cbr /=3E=3Cbr /=3EThe Moss catalog is certainly misleading=2C as they =
show a drawing of the=3Cbr /=3Eplate for a DM2P4=2C but the listing says=
it is for a 25D4=2E=26nbsp=3B They have no=3Cbr /=3Elisting for the ear=
lier part (which I assume means it is not available)=2E=26nbsp=3B I=3Cbr=
/=3Ebelieve the equivalent part number at TRF would be LU421078=2C whic=
h they have=3Cbr /=3Elisted as NLA=2E=26nbsp=3B You might check with Rev=
ington=2C he seems to source a lot of=3Cbr /=3Eparts the others can=27t =
find=2E=3Cbr /=3E=3Cbr /=3EFaced with that same dilemma some years ago=2C=
I fabricated a mount for the=3Cbr /=3Elow tension lead that worked quit=
e well=2E=26nbsp=3B Just a stack of pieces of bare=3Cbr /=3Efiberglass p=
rinted circuit board (from the scrap bin=2C no copper plating)=2C=3Cbr /=
=3Ecarved with a Dremel to fit snug but not too tight in the slot in the=
=3Cbr /=3Edistributor cap=2E=26nbsp=3B A small bolt through the center l=
inked the two wires=2E=3Cbr /=3EIIRC I used 3 pieces of PC board=2C one =
smaller to fit inside the notch and=3Cbr /=3Etwo slightly larger to fit =
on either side of the notch=2E=26nbsp=3B A little extra work=3Cbr /=3Eto=
install the cap=2C as I had to hold the side wire to position the new p=
iece=3Cbr /=3Ein the slot=2C as I lowered the cap into place=2C but not =
too bad=2E=3Cbr /=3E=3Cbr /=3ELater=2C I switched to a (used) 25D4 distr=
ibutor=2E=3Cbr /=3E=3Cbr /=3E-- Randall=26nbsp=3B =3Cbr /=3E=3Cbr /=3E=26=
gt=3B -----Original Message-----=3Cbr /=3E=26gt=3B From=3A Triumphs =5B=3C=
a href=3D=22mailto=3Atriumphs-bounces=40autox=2Eteam=2Enet=5D=22 =3Email=
to=3Atriumphs-bounces=40autox=2Eteam=2Enet=5D=3C/A=3E On =3Cbr /=3E=26gt=
=3B Behalf Of Art McEwen=3Cbr /=3E=26gt=3B Sent=3A Sunday=2C October 14=2C=
2018 7=3A19 PM=3Cbr /=3E=26gt=3B To=3A triumphs=40autox=2Eteam=2Enet=3C=
br /=3E=26gt=3B Subject=3A =5BTR=5D Name that distributor (TR3)=3Cbr /=3E=
=26gt=3B =3Cbr /=3E=26gt=3B=26nbsp=3B Hi=26nbsp=3B =3Cbr /=3E=26gt=3B =3C=
br /=3E=26gt=3B =3Cbr /=3E=26gt=3B The backing plate on my TR3=27s distr=
ibutor has a lot of play =3Cbr /=3E=26gt=3B in it so timing is problemat=
ic=2E=26nbsp=3B I ordered a new one from =3Cbr /=3E=26gt=3B Moss however=
that part (551-055) doesn=27t have the same tall =3Cbr /=3E=26gt=3B att=
achment for the low tension lead leading outside the cap =3Cbr /=3E=26gt=
=3B (see old unit on the left)=3A =3Cbr /=3E=26gt=3B =3Ca href=3D=22http=
s=3A//www=2Edropbox=2Ecom/s/wzxo5gpd3tnuaei/IMG=5F20181014=5F1038057=22 =
target=3Dl =3Ehttps=3A//www=2Edropbox=2Ecom/s/wzxo5gpd3tnuaei/IMG=5F2018=
1014=5F1038057=3C/A=3E=3Cbr /=3E=26gt=3B 63=2Ejpg=3Fdl=3D0=3Cbr /=3E=26g=
t=3B =3Cbr /=3E=26gt=3B =3Cbr /=3E=26gt=3B The distributor is stamped 40=
480D (see below) which doesn=27t =3Cbr /=3E=26gt=3B seem to be within th=
e range of their 25D model matching (if I =3Cbr /=3E=26gt=3B go down the=
electronic replacement match-up rabbit hole)=2E =3Cbr /=3E=26gt=3B =3Ca=
href=3D=22https=3A//www=2Edropbox=2Ecom/s/s1ghm1wradmp3xw/IMG=5F2018101=
4=5F1047562=22 target=3Dl =3Ehttps=3A//www=2Edropbox=2Ecom/s/s1ghm1wradm=
p3xw/IMG=5F20181014=5F1047562=3C/A=3E=3Cbr /=3E=26gt=3B 91=2Ejpg=3Fdl=3D=
0=3Cbr /=3E=26gt=3B =3Cbr /=3E=26gt=3B Do I have a non-standard distribu=
tor=3F=26nbsp=3B Any idea the right =3Cbr /=3E=26gt=3B part =23 for my b=
acking plate=3F=26nbsp=3B=26nbsp=3B Or should I just bite the =3Cbr /=3E=
=26gt=3B bullet and go electronic=3F=3Cbr /=3E=26gt=3B =3Cbr /=3E=26gt=3B=
Thanks=2C=3Cbr /=3E=26gt=3B =3Cbr /=3E=26gt=3B Art =3Cbr /=3E=26gt=3B 1=
960 TR3A=26nbsp=3B TS64989LO =3Cbr /=3E=26gt=3B =3Cbr /=3E=3Cbr /=3E=3C/=
DIV=3E=3C/BLOCKQUOTE=3E
=3CDIV=3E=26nbsp=3B=3C/DIV=3E
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** triumphs@autox.team.net **
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