Navigation

You are here: Home / Messages / Commando / Bashed battery platform

Bashed battery platform

Up to Commando

Bashed battery platform

Posted by Julian Wells at March 03. 2017

Attached is a picture of the battery platform that I've just removed from my bike. As can be seen, someone has taken a blunt instrument to the front end in such a way as to lower the height relative to the front mounting ears.

As far as I can tell this object is identical, apart from this crude modification, to the refurbished secondhand item that I've just fitted (sourced from the club spares scheme).

Attempting to re-fit the backplate of the air-cleaner proved quite taxing, and eventually I drilled new holes in it for the bolts attaching it to the battery tray (again, I find I can only attach one picture, so photo of this will follow with continuation post.

Attachments

Re: Bashed battery platform

Posted by Julian Wells at March 03. 2017

And here's the air-cleaner backplate, mounted using new bolt-holes drilled 7/16 in. higher in the plate (thus lowering it with respect to the battery platform).

[ memo to self: must remember to make old holes air-tight ... ]

As mentioned, this is to accommodate the difference between my old, bashed, battery platform, and my s/h replacement.

As far as I can tell there is nothing out of the ordinary about the backplate (apart from new holes), so I'm totally puzzled by all this -- any suggestions?

Attachments

Re: Bashed battery platform

Posted by karl_nixon at March 04. 2017

I believe  (i could be wrong) there are two different types of the back plate with holes at different levels and i would think you may have the wrong combination of back plate and battery tray thus creating the issue. However as long as you cover the now spare holes in order to stop unfiltered air entering the engine it should not be a problem if there was no problem with the assembly before.

A simple way to cover the redundant holes would be over size repair washers or maybe a small plate held on inside of filter assembly by the fixing bolts so it would not be visible on the outside.

Re: Bashed battery platform

Posted by Julian Wells at March 05. 2017

Karl,

Thanks for this suggestion; I had been wondering about precisely this. As far as I know the only alternative arrangement (pre-Mk III) was the SS models with a transverse oil tank. Can anyone confirm or otherwise this

My Fastback's clearly had an adventurous (but poorly-documented) life, so I wouldn't bet against it's having been a different model at some stage -- for one thing, the rear mudguard and number-plate arrangement is a fairly neat but definite bodge with non-Fastback parts.

For the time being I've duct-taped the holes on the outside: (a) I'm not proud (b) you'd have to be sitting on the cross-tube of the swinging arm to see the back of the backplate ...

 

Previously karl_nixon wrote:

I believe  (i could be wrong) there are two different types of the back plate with holes at different levels and i would think you may have the wrong combination of back plate and battery tray thus creating the issue. However as long as you cover the now spare holes in order to stop unfiltered air entering the engine it should not be a problem if there was no problem with the assembly before.

A simple way to cover the redundant holes would be over size repair washers or maybe a small plate held on inside of filter assembly by the fixing bolts so it would not be visible on the outside.

Re: Bashed battery platform

Posted by Julian Wells at April 04. 2017

It's occurred to me to look this item up on the Norvil website (http://www.norvilmotorcycle.co.uk/battery.htm), which turns out to list what looks like five different types (with stainless options for two):

061220         TRAY - BATTERY - 1968 TO 1970 COMMANDO - S-TYPE & R-TYPE     £65.00

060615         TRAY - BATTERY - 1968 TO 1970 FASTBACK     £67.00

060615SS           TRAY - BATTERY - 1968 TO 1970 FASTBACK - STAINLESS STEEL     £75.00

062557         TRAY - BATTERY - 1971 TO 1973 - FITS BATTERY ALONG BIKE - W5     £45.00

062557SS         TRAY - BATTERY - 1971 TO 1973 - FITS BATTERY ALONG BIKE - STAINLESS STEEL     £75.00

061656           TRAY - BATTERY - COMMANDO 1970 - UNDER BATTERY            £5.90 (according to the Andover Norton site this is  actually the rubber pad to go under the battery)

064128         TRAY - BATTERY - MK2A - FITS BATTERY CROSSWAYS     £43.00

066268         TRAY - BATTERY - MK3 - FITS BATTERY CROSSWAYS     £63.00

Re: Bashed battery platform

Posted by richard_woolnough at April 05. 2017

this seems a good point to ask maybe a silly question, how do you balance the carbs when there is no acess to put any guages on the chokes? kind regards

Powered by Ploneboard
Upcoming Events
Brittania Rally - Denmark Aug 18, 2017 - Aug 20, 2017 — Jolly Roger Mc, Nørre Langgade, 8840 Rødkærsbro, Denmark
2017 International Rally Aug 24, 2017 - Aug 28, 2017 — Open Huis, Ieperstraat 157 - 8840 Staden, Belgium
2017 MGP Reunion Aug 29, 2017 03:00 PM - 06:00 PM — The Shore Hotel, Old Laxey Hill Laxey. Isle of Man IM4 7DA
Tay Valley Branch Camping Weekend - Town Yetholm Sep 08, 2017 - Sep 10, 2017
CRMC Track Parade - Anglesey Coastal Sep 09, 2017 - Sep 10, 2017 — A55, Ty Croes, Gwynedd LL63 5TF
Upcoming events…
This is Brio Diazo Plone Theme