With Taffy still beating the drum of rear brakes I’ve more to say about Kieran’s difficulty with bleeding the brake system after fitting new rear LHM wheel cylinders to his ongoing 2CV restoration project. You’ll remember I suggested that either the dust cap cover or “O” ring seal might be the problem causing the piston to retreat into the actual wheel cylinder after pressure is removed from the brake pedal.
Therefore back to the new LHM wheel cylinder I purchased for “stock” back in 2012. With one piston removed my wife Gill tried to push the other piston out with the dust cap cover still in place whilst I watched holding the camera. This piston was somewhat reluctant to move outwards and when the finger pressure was removed, it disappeared back into the cylinder from whence it came. Should that happen?
So to determine whether it was the “O” ring seal or the dust cap cover causing this alleged anomaly to arise, I everted the cover (as shown) and asked Gill to repeat the process. This time the piston popped out more easily and when finger pressure was again removed, the piston stayed where it was. I think you can draw your own conclusions from this little experiment.
But we were testing a new LHM wheel cylinder acquired back in 2012, indeed I always date things after purchase before storage so, when a new part is actually needed, I have some idea how long it has been up in the loft. Have things changed since then? Therefore I bought another new LHM rear wheel cylinder recently from the same source for comparison and you’ll immediately notice the different box and manufacturing details on the packaging.
After unpacking this latest new example and taking it apart I applied the same test as above. Absolutely no difference, the dust cap cover still appeared to be resistant to any movement, stretching etc as the piston came out and likewise this component similarly retreated back into the wheel cylinder housing when any outward pressure was removed.
I’m not saying for one minute that all makes of new LHM rear wheel cylinder have this problem but think it is something you should all be aware of whenever you have to replace these items on your car. Poor Kieran wasn’t … he is now!
Next my thanks to Robert Cunningham, Joe Cent and the other Members of 2CV Ecosse for recently organising the “concrete camp” up at Melrose. The magnificent autumnal colours going over Carter Bar from England into Scotland were breathtaking. With only a few days “up north” Gill and I put on our walking boots to investigate the local area rather than partake in 2CV scenic drives. Did you know that Melrose was a very important Roman settlement called Trimontium beyond Hadrian’s Wall? And the still remaining but now sadly disused mid-nineteenth century railway viaduct built across the River Tweed is equally impressive.
Over the last few months you will have read that I’ve dabbled with the idea of fitting LED headlights to my 1981 square headlight 2CV drummer to improve nocturnal vision. Apparently I’m not the only Classic Car enthusiast by any means to consider this alternative, prompting a lengthy article in the latest FBHVC News Magazine written by this organisation’s DVLA liaison officer Ian Edmunds. You can read the whole submission by Ian (something which I strongly advise) if you go on-line searching for Issue 5 2017 FBHVC News (http://www.fbhvc.co.uk/members-pages/newsletter-archive/). However I know not all of you have computers so here is a reprint of Ian’s conclusions beginning with “LAMPS WHERE THE USE OF LED’s IS LEGAL subject to conditions explained within the full article.
- Front Position Lamps (Side lamps). Vehicles first registered before 1st January 1972 LED light sources in the original lamps are compliant.
- Rear Position lamps (Tail lamps). Vehicles first registered before 1st January 1974 LED light sources in original lamps are compliant.
- Rear Registration Plate Lamps. Vehicles first registered before 1st April 1986 LED light sources in the original lamps are compliant.
- Stop lamps. Vehicles first registered before 1st January 1971 LED light sources in the original lamps are compliant.
LAMPS WHERE THE USE OF LED’s IS NOT LEGAL.
- Stop lamps. Vehicles first registered after 1st January 1971 LED light sources in the original lamps are non compliant. This is because LED’s will not meet the minimum wattages specified in the regulations.
- Direction Indicators. (flashing type) LED light sources in the original lamps are non-compliant. This is because LED’s will not meet the minimum wattages specified in the regulations.
- LED light sources in the original lamps are generally non-compliant. This is because LED’s will not meet the minimum wattages specified in the regulations. However, in some particular cases it may be possible to locate LED light sources of compliant wattage”.
May I offer my thanks to the FBHVC for allowing me to reprint this material.
And finally a request from some stalwart Classic Car enthusiasts within 2CVGB keenly interested in keeping early A Series cars on the road. Are any of you holding on to old (new or used) no longer required 6 volt electrical equipment, in particular 6 volt regulators and crank dynamos? The latter to be found behind the fan on 375, 425, 435 cc engines fitted to 2CVs, Dyanes and Vans from 1948 to 1970-ish. We would like to collect up what’s out there for servicing, repair and refurbishment before putting back into use on the specific vehicles I’ve mentioned above. If you have such parts lying in a box somewhere that you might wish to dispose of, please get in touch using my contact details found at the front of this Magazine.
Have a good Christmas and speak with you again in the New Year.