Inter clubman plunger tool box

... - 1952 plunger ES2 - is similar and only uses the top 2 fastenings. It seems very rigid with those. I have no lower mounting tab, although the toolbox came in a box of spares from an aution so can't verify it's of original pattern.

It did take a while to source mine and it was in pretty ropy condition.

....fits all plungers with the possibility the holes are drilled in different spots. I too found an orphan toolbox and needed to weld and redrill the upper mounting holes. Just the two, no lower mount.

It may not be relevant, but for a short while, WD16Hs were fitted with double steel pannier toolboxes and the lug for the lower toolbox mount on the chainstay was deleted...when production reverted to a conventional box, they used a "P" clip around the stay. Even with the brazed lug, there was a short spacer tube that was not shown in the spare parts lists, although the 2 3/8" length of the bolt specified in the lists makes it clear that there must have been a spacer.

Hi Bruce,

   Michael is correct, both plunger and rigid frames use the same box with the plunger ones fixed on the top only. The ones you have seen with the bottom bracket are for the rigid frame where the bottom frame tube runs close to the bottom of the box allowing a short bracket on the tube to join the one on the box. As there is no bottom support on the plunger type, it might be best to put a full length steel plate inside the top of the box to give more strength and support.

On both my plunger frame bikes I put a bolt and suitable spacer from the bottom of the toolbox through the mudguard to stop any vibration.

John
 

This is a really old thread, but for anyone seeking clarification:  Tool boxes for Rigid frame bikes have a bracket on the bottom that bolts to one on the frame, as Richard Cornish stated above.  However, as per John Doig above,  the Plunger framed bikes use a 1/4" bolt (approx 1 1/2" long) that runs horizontally from the lower corner of the tool box through the right hand edge of the rear mudguard with a suitably sized spacer in between.  I believe the spacer is of the same material as used on the two rear mudguard to frame mounts.  Plunger type toolboxes all have this hole in the bottom.  There is a difference in the location of the top mounting holes, with them being closer together for Inters, and a bit further apart for ES2s because the frame brackets are not in exactly the same location.   On both my '50 ES2 and '47 Inter I had to place thin spacers under the upper mounting tabs in order to get the toolboxes to sit right.

Hi Bruce,

   I have just had a look at your attached photo and it looks like you have a narrower Manx type mudguard. You should be able to make up a bracket from a flat mild steel strip if the spacer Howard mentions doesn't line up.
   I also see you have a pre 1948 Manx oil tank fitted, so I guess the bike was raced at sometime, do you have any history with the bike ?

Is used on my machine. A "P" clip attached to the rear wall. It is not standard or correct but it works.

Hi Bruce/all,

   I had a look in the 1948/49 parts list and there isn't a bottom bolt listed for the plunger frame tool box. This was probably added a bit later when it was found the top panel was fracturing with the vibration.

Jon,

Your tool box looks neatly fitted and tucks in well under the seat. If you are not aware already, it is from a swinging-arm ES2 from 1953 to 55.

It's how it arrived with me. Dan Field had an interest in it on a previous post. It houses battery, spare bulbs etc and the oily rag used to maintain ;-)
Jon

All the signs of a machine that evolved over the years. The variations show it was kept active beyond its race career.  I have a similar history to my machine which s somewhat older but the end result is similar to yours.
 They are a great ride, powerful enough to keep up and set up right the stopping is not a problem as long as you ride according to the machine not to modern machine performance.

Enjoy it! 

Jon