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Messages - Revband

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British Bikes / Re: rims and spokes
« on: December 03, 2017, 05:45:17 PM »
Devon  Rim Company, without doubt the best by far, the only one's I use now and I build a lot of wheel's.

British Bikes / Re: Thunderbird clutch
« on: February 01, 2015, 11:12:28 AM »
Some very good advice so far, one other thing with the Thunderbird clutch is that over the years the handlebar lever gets replaced and sometimes with the wrong one, the Thunderbird lever should measure 7/8 inch between the pivot bolt centre and the nipple hole centre, if yours measures 1 1/8 inch which is the more common lever change it to the correct one the difference is vast.

British Bikes / Re: 1972 T120 Bonneville prob.
« on: July 21, 2014, 06:13:25 PM »
Slide/carb body worn?. Open throttle slightly and feel if the slide moves around.

British Bikes / Re: velo mac compresion
« on: May 15, 2013, 06:58:25 PM »
Hi Wetdog

I haven't measured the compression ratio on this bike but  with the bigger piston and the dome top I would estimate it to be nearer 8-1 than 7.15-1 but certainly wouldn't argue about it.

The bike you have is as you say far too high a compression for petrol and needs dropping down, also the problem you have with the little end bush makes me wonder what else the dopey PO has done to the bike, personally I would do a complete strip and carefully check everything in there, as I said previously a compression plate is easy to make, get a piece of 3/16 soft alloy sheet from your local supplier and spend about an hour making one. I used a cylinder base gasket as a template.

British Bikes / Has The world gone mad?
« on: May 15, 2013, 12:15:11 PM »
A couple of days ago I put two Dunlop flanged alloy rims from a 56 Goldie DBD34 on ebay, within 24 hours I had had repeated requests for a buy it now, three high offers to remove from ebay the highest being more than double the price of the bike when it was new.

I thought the old bike boom had passed but looking at this it obviously hasn't. Has the world gone mad or am I just out of touch?.

British Bikes / Re: velo mac compresion
« on: May 15, 2013, 08:34:56 AM »
Yes I have one in my B31 together with a pair of Goldie clubmans cams starts first kick every time and goes like a good un.

I forgot to say when I first did it I made a compression plate to fit under the barrel from 3/16 alloy sheet, I have now removed this plate and can't really notice any difference. If you want to drop the compression it only took about an hour to cut drill and file the plate to shape not a big job at all.

British Bikes / Re: Monobloc
« on: May 11, 2013, 09:07:44 AM »
Another thing to look out for, if you are using a new NGK plug there are a lot of fakes around I had the same problem, I spent a long time going round in circles before I found it.

British Bikes / Re: New carb for ES2
« on: April 27, 2013, 09:30:45 PM »
I wish you luck Bomber, But don't hold your breath.

British Bikes / Re: New carb for ES2
« on: April 25, 2013, 07:16:25 PM »
I ordered one from them three years ago, after four months I cancelled it and got a refund' it is still showing on my account as on order.

I ordered it fromSurry Cycles and got it two days later.

« on: March 14, 2013, 03:42:33 PM »
Hi again Wetdog.

Indeed you do seem to have "racked him off", I have used these valves on a B32, a 500 Goldie and a 350 Goldie without problem a friend also has them fitted to a 350 Goldie and a 350 AJS (in line type from same supplier) without any problem.

About three years ago my brother fitted one to an A7 which had recently had the engine rebuilt by the previous owner, it had only done around 200 miles since the rebuild and one bright but freezing winters day he took it for a run, about half a mile out he felt the engine tightening up and stopped, the engine  then would not kick over and he pushed it back cursing the anti drain valve as the culprit, when he went to the bike again the engine had freed off and turned over OK, the offending valve was removed and he rang me complaining about it, I went along to check it out for him and the valve was working as it should but turning the engine over had no oil returning.

I am not saying the same happened with yours, but on the twins they can suffer a "cold seize" this had happened on my brothers bike. the freezing weather shrinks the alloy case which compresses the timing side bush onto the crankshaft, if you ride off straight away the wind cools the case even more whilst the shaft is beginning to warm, if the bush is a very close fit the shaft can force it round cutting off the oil supply to the bottom end, after sorting the main bearing bush the bike has been running without problem with the valve refitted ever since.

I hope  the damage to your bike was not too bad.

« on: March 14, 2013, 09:56:33 AM »
I have used these valves for a number of years now on BSA's and not had any problem.

As others have said this type of valve was standard fit on many Velocette's, Velocette give details on priming the oil pump whenever the oil feed has been dismantled, the supplier of these valves gives no info regarding priming them, perhaps it is not needed but I always prime mine and I am very happy with the way they work.

Always as matter of course on all my old bike if they have been stood for any length of time I remove the oil cap to check the oil is returning correctly.

I understand that the supplier is well versed in all things BSA and is in the hierarchy of the BSA owners club.

Have you had the valve tested to verify it is faulty?.

Sorry to hear you have a problem but it is all to easy to blame the wrong thing for the damage, you could be quite right in saying the valve caused it but having used these valves and closely examined them I find it hard to understand how one could fail in a closed condition.

British Bikes / Re: Sparkplugs
« on: February 06, 2013, 09:31:50 AM »
Where are you buying the plugs?, I had a similar problem, Google fake NGK spark plugs for info.

British Bikes / Re: Triton Starting
« on: December 24, 2012, 03:26:02 PM »
Hi R

I was referring to not using a hotter grade than Triumph recommended for the engine originally, obviously if the wrong grade (cooler plug) is fitted now then no problem with fitting a correct hotter plug.

British Bikes / Re: Triton Starting
« on: December 23, 2012, 11:20:57 AM »
Pretty much as R says, but some Triumph engines are prone to melting the piston if you use hotter plugs, so I would not advise that, also how long is it since the bike was running?, is the petrol stale?.

The Classic Biker Bar / Re: Battery charging.
« on: December 16, 2012, 06:18:21 PM »
Hi Wetdog

Yes I do have a 6v charger rated at 500ma in fact, this one came from Lidl. If you have a look on ebay you can take your pick from dozens of different ones starting from around 5.00, or Paul Goff will be happy to supply you with one, as will many other people.

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