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Messages - john.k

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256
British Bikes / Re: Carburettor spacer and gasket
« on: June 30, 2019, 10:13:28 AM »
Ian ,you are correct ,it is a hard fabric reinforced phenolic resin,and quite expensive at times......Anyhoo,to all intents and purposes,it will be rigid as a carb spacer.....On the subject of vapor locks ,is the expansion coil in your fuel line horizontal,and allways sloping downhill.......but vaporlocks can be problematic......I had a Ford V8 flathead engine truck,and after a hot stop ,it just would not start......but of course ,the tank was a lot lower than the fuelpump,and that is the typical scenario for vaporlocks.

257
British Bikes / Re: Carburettor spacer and gasket
« on: June 30, 2019, 01:02:24 AM »
Plus the usual warnings not to bend the carby flange with thick soft gaskets.A hard spacer and a smear of silastic on thin paper gaskets is the go.

258
British Bikes / Re: Help My sons bought part of a 30's motorcycle!
« on: June 27, 2019, 04:49:16 AM »
Anyhoo,there is no need to do everything straight away..........my advice,is to collect more bikes and bits,and everything will come together eventually.........Money cant buy happiness ,but it can buy lots of old motorbikes.Which is the same thing.

259
British Bikes / Re: A newbie to vintage bikes
« on: June 27, 2019, 04:45:15 AM »
2X on that...... overpriced by the Norton name,and double overpriced now because of the tossers who want to be hooligans on military bikes at D Day reenactments.........

260
British Bikes / Re: A newbie to vintage bikes
« on: June 26, 2019, 12:29:16 AM »
Ive had all sorts of old bikes for 50 years........and my advice is stay off the roads if you want to live.......simple fact is millenials cant go one minute without playing with a screen.......and will run you down and want to get off with a "sorry,didnt see you"

261
British Bikes / Re: Best & Lloyd mechanical pumps
« on: June 25, 2019, 10:08:13 AM »
havent  seen  SA hub on a bike in years...........Sturmey Archer still exist,in Taiwan,and make a very expensive 7 speed hub for mountain bikes....................there used to be an interesting story on Sturmey Archer,some con artists got controll of the company ,took the Nottingham council for a million or so,and then stole more millions from the remains of Sturmey Archer.......E DIT.....one place to find a small planetary gearset,or three is in a cheap air drill...probably lots of other similar tools have them too.

262
British Bikes / Re: Best & Lloyd mechanical pumps
« on: June 25, 2019, 05:23:01 AM »
There was someone making new replica B&L pumps from brass ,but that was a wee while ago(80s?)....if still around ,he would make a custom one with a much smaller plunger......Maybe thats why Ariels had a drip feed glass indicator mounted up on the tank.........so you could keep an eye on the feed,and maybe bypass some back to the oiltank.

263
British Bikes / Re: Best & Lloyd mechanical pumps
« on: June 24, 2019, 01:10:18 PM »
When the Jawa Eso motors were used in road racing,return to the tank was by simply hooking up a pipe from crankcase ,and it worked quite well.........some here may remember the ESo s had a Czech made copy of the Pilgrim pump,that was much better made than the british one.

264
British Bikes / Re: Best & Lloyd mechanical pumps
« on: June 24, 2019, 09:51:34 AM »
I accept the smoking,but just because to crankcase oil level falls to where a steady level is maintained,an engine doesnt seize..............a sleeve valve is nothing special in this,if oil floods an ordinary dry sump motorbike ,clouds of smoke issue out,and the exhaust will fill with oil.........in fact the motor cuts from an oiled plug long before it runs out of oil.....anyway ,the simple way to limit oil delivery is to limit the pump stroke..........which is precisely what Harley Davidson did with the pocket valve motors,where in the 26 on motors oil delivery was  modified by the throttle position.,as well as an adjuster screw. Pilgrim pumps. are similar,delivery is set by an adjuster,which limits plunger stroke.

265
British Bikes / Re: 55 Matchless G9 primary chaincase
« on: June 24, 2019, 02:15:30 AM »
I suggest you get a Norton single,or a twin.......then you will never complain about any other brand wet sumping.A Norton will often dump the entire contents of the oil tank overnight.....Back leakage thru the feed section of the oil pump.The common cure is a tap,but a much better one is a special demand valve fitted to a Yamaha outboard motor......unfortunately Ive forgotten the part no,but no doubt someone here will know it.......but last I heard Yamaha was back ordered on this valve due to unprecedented demand.........which they were at a loss to understand..........until they discovered the valves were for british bikes...........

266
British Bikes / Re: Amal 76/276 carb on its side.....horizontal.
« on: June 14, 2019, 08:02:52 AM »
The bowl I make will have be a little further back to clear the tiiming cover,but thats neither here or there..........I probably shouldnt have cut the intake short without waiting to see how it all fitted........Anyway,im just interested to know if there is any difference in the internals of the carb body,like for instance the jet block and guide.....I also note your carby is a Allparts ,then only Amal bit the floatbowl top...........i suppose I could ask Burlens or Hitchcocks.

267
British Bikes / Re: Amal 76/276 carb on its side.....horizontal.
« on: June 14, 2019, 02:11:23 AM »
I suppose my question should be....is the horizontal carb different from the vertical.....or can a standard vertical body be used?............Its spigot mount ,so any angle can be accomodated.........I thought about having the carb angled ,but that doesnt look right...........the float bowl hasn been made yet,but will be a old Binks twojet brass bowl with a bit soldered to the side ............currently I am using a Amal bowl with a bit of hose connecting,and adjustable level.................Ive tried a 76 with the external bleeds ,and petrol goes everywhere until the motor is running......Ive tried the 276 and petrol only leaks from the slide top ring.,until the motor is going...................this is exactly the same result as on the Triumph single......................................the obvious way is to turn off the fuel if the motor isnt running,which is what he does.

268
British Bikes / Amal 76/276 carb on its side.....horizontal.
« on: June 13, 2019, 05:55:57 AM »
Someone has mentioned an Amal 76/276 run horizontally...........I intend to do that with a JAP motor I have ,to shorten the intake pipe...........The only bike with a Horizontal Amal Ive been able to look at is a Triumph 350 single of the 30s.....and apparently ,it leaks more petrol than it burns........so its owner is keen to know too..........Ive got a float bowl setup that can  easily adjust the petrol level......same as the remote for a GP........But as the carb sits on top of the mag,petrol bath is obviously undesirable......Over to you.

269
British Bikes / Re: Help My sons bought part of a 30's motorcycle!
« on: June 10, 2019, 09:44:50 AM »
The forks are close enough to the post war 125 forks,to use a set......the post war wheels are also similar ,in that the rear has a sprocket one side ,brake t'uther........so If it was me ,I would look for the postwar 125 parts,and I dont believe they could be that hard to find..................and I notice you have the fork blades anyway..........the rest isnt hard to fabricate ...............................not wishing to hurt feelings here ,but Enfield tiddlers have always been bottom of the totem pole.....even a 500 single with girders never very expensive.......unfortunately the cheap WD models have fallen victim to the millenials desire to re enact WW2.......without the risk of injury or death ,of course........just got to see the recent  D Day re enactment  in France.....millenials saving the planet driving round in hundreds of trucks that get 1 mile to the gallon.

270
British Bikes / Re: Help My sons bought part of a 30's motorcycle!
« on: June 10, 2019, 06:21:05 AM »
I see some 1935 catalogue  pics in an old Classic Bike mag,and the two stroke is identical to the 250sv ,except motor and related parts......the forks are also pressed ,so wont be all that expensive or hard to find........

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