Author Topic: Oil Tank to Rocker Feed Banjos 42-0139 or 67-8309? SOLVED  (Read 145 times)

Offline Peter Gee

  • A's Best Friend
  • ***
  • Posts: 192
  • Karma: 0
I have a 59 A7SS. Banjo 67-8309, the one that feeds the rockers from the l oil tank I can't find in any parts list but it's on Feked as "circa 1947-57". It has a short stem about 3"

 I looked up the 60-63 parts list and well, they show a  different banjo  42-1039 with a  very long stem 9". That would seem to put the rubber junction from the banjo stem to the rocker feed pipe on the drive side of the bike, and not the timing side as with 67-9309 and it's short stem, requiring a different routing for the rocker feed pipe.

Or is it not worth bothering about?

[/img]






Thanks folks

Offline RGS-Bill

  • A's Best Friend
  • ***
  • Posts: 162
  • Karma: 9
  • Rocket Gold Star-Bill - U S of A -- N.W. Corner
Re: Oil Tank to Rocker Feed Banjos 42-0139 or 67-8309?
« Reply #1 on: 29.01. 2019 22:30 »


   I believe it only matters if you have a 100 point bike in a bike show, where the judges might mark down points for having the wrong banjo fitting in the machine. 
   The earliest of the BSA machines relied on an oil mist to lube the rocker systems, they did not have an oil banjo fitting to feed actual oil to the rockers. 
    When I first got my machine ( 43 years ago) the   P.O. had cut the banjo tube off so short you could not get a clamp on to seal hose properly.  Could not find a replacement banjo fitting at the time so had to drill out the 1/8th copper tube from inside the banjo and silver solder a new 1/8th , exterior measure copper pipe in it, with an internal diameter of 3/16 th's, and then run new rubber feed hose up to the Webco rocker feed at the top of the valve train.

    PS:  When first starting your machine, while looking into the oil tank for sump oil return oil, hold your finger over the return hole to tank and force some oil up to rockers, then you are good to go for max lubrication to the rocker arm assemblies.  Remember BSA relied only  on oil misting for years.  You do not want to hold your finger there too long, you could foul a plug eventually, you can hear from the valve clatter when it is enough oil up there, it quiets down some.
U S of A
N.W. Corner, Seattle 
1962 RGS
78 YEARS OLD
Still Kick Starting My Motor (9 TO 1)
Although getting a bit tougher to do ! !

Offline Peter Gee

  • A's Best Friend
  • ***
  • Posts: 192
  • Karma: 0
Re: Oil Tank to Rocker Feed Banjos 42-0139 or 67-8309?
« Reply #2 on: 29.01. 2019 22:46 »
Many thanks for this....makes a lot of sense...no I am not going for the 100 point show bike, Ive done some gentle mods to my A7SS rebuild like alloy guards and a RGS type headlamp to get ot less pedestrian.

My biggest swine of a problem is lining up the oil tank so that it won't rub the frame and it will allow enough space to actually fit the oil feed pipes and especially said lower one with  the rocker banjo without them also gouging the frame. What a vile design!

Saw someone with an ex Phodesia police  A10 here in Nairobi..seemed to have a flatter, less bulbous oil tank to mine and he had zero problems with what I am dealing with.

Online JulianS

  • 1962 A10
  • Resident Legend
  • *****
  • Posts: 824
  • Karma: 16
Re: Oil Tank to Rocker Feed Banjos 42-0139 or 67-8309?
« Reply #3 on: 29.01. 2019 22:50 »
67 8309 is for plunger and rigid framed bikes only, the union is different than that on the swinging arm machines and will not fit your 1959 bike.

You can find 67 8309 in the 1951/52 parts book, page 252 and 253 and the book can be downloaded from the Service literature page of this forum.

Offline Peter Gee

  • A's Best Friend
  • ***
  • Posts: 192
  • Karma: 0
Re: Oil Tank to Rocker Feed Banjos 42-0139 or 67-8309?
« Reply #4 on: 29.01. 2019 23:27 »
Thanks Julian!!!!