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by david.anderson
Sun Sep 15, 2019 4:46 am
Forum: Four stroke
Topic: Another Single Cam Thread
Replies: 3
Views: 271

Re: Another Single Cam Thread

Brian there is nothing to lose in at least trying the 2nd cam. It does have a fairly flat top which is similar to a Senior or Corish cam. Below is first a Senior cam then a Corish cam and 3rd is a master from Corish which has a little more lift than the 2nd cam and is not quite as flat on top. David...
by david.anderson
Sun Sep 15, 2019 4:38 am
Forum: A Bad thing happened to my Ariel
Topic: "That hasn't happened before . . ."
Replies: 15
Views: 559

Re: "That hasn't happened before . . ."

Like Chris I have found that a previous owner has substituted ¼” CEI for 6mm x1mm metric. The 6mm bolt is only .25mm less in diameter and the threads at 25.4 per inch result in an almost normal feeling fit in the ¼” cei hole. When I first purchased it the point advance mechanism in my commando was h...
by david.anderson
Sun Sep 01, 2019 10:11 am
Forum: Main Chat Forum
Topic: '51 SQ4 - Reproduction Fuel Tank
Replies: 4
Views: 227

Re: '51 SQ4 - Reproduction Fuel Tank

I would say that is typical of reproduction Indian tanks. I have only ever seen one that fitted. It had been purchased already chromed. The owner then had it painted, and then fitted it to the bike only to find that when he put petrol in, it came out the seams almost as fast as it went in the filler...
by david.anderson
Thu Aug 22, 2019 10:54 pm
Forum: Main Chat Forum
Topic: Which Bronze to use ?
Replies: 28
Views: 1139

Re: Which Bronze to use ?

While off the main subject and on the subject of 3 phase, Charles has mentioned a 3 phase converter. I am currently running my 3 phase machines off a 3 phase converter, and it is something that I would not recommend unless there is no other way. I have several 3 phase machines, the biggest being 7.5...
by david.anderson
Thu Aug 15, 2019 8:26 am
Forum: Main Chat Forum
Topic: 1930 cam profiles.
Replies: 14
Views: 1566

Re: 1930 cam profiles.

The A6/664 cams are are readily available second hand. It was the early red hunter cam and was subsequently used in the sidevalve after a recommendation by Hartley. The A6/664 will not perform quite as well as the later red hunter cam the A7/642. The A6/664 should be a considerable improvement in th...
by david.anderson
Thu Aug 15, 2019 12:15 am
Forum: Four stroke
Topic: Valve stem oil seals
Replies: 7
Views: 608

Re: Valve stem oil seals

I do believe that the valve stem oil seals are a very good idea. My mk2 shows a lot of oil deposits in the inlet port and there was always traces of smoke from the exhaust of a completely rebuilt engine. Some of the cause is clearly the oil well that is formed in the valve top collar from where the ...
by david.anderson
Thu Aug 08, 2019 6:20 am
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2175

Re: Idle W/NG

Simes Concentrics and monoblocks are designed to run 1.5 to 2 turns open on the idle screw. Not certain about sidebowls but the 289 on my 49VH idles best at 1.25 turns out. Any more than 1.5 turns and it will backfire sharply. Ignition advance, on the road I would not run less than ½” as performance...
by david.anderson
Tue Aug 06, 2019 11:07 pm
Forum: Main Chat Forum
Topic: Daily Fixing and Riding Diary on an Ariel 2019
Replies: 258
Views: 20654

Re: Daily Fixing and Riding Diary on an Ariel 2019

Steve A friend of mine was killed when he rode off with his sidestand down. Something that I have always appreciated about the Ariel is that it is impossible to ride off with the sidestand down as the sidestand springs up when the weight of the bike comes off it. My Honda cannot be started with the ...
by david.anderson
Tue Aug 06, 2019 11:05 pm
Forum: Four stroke
Topic: primary inner case
Replies: 2
Views: 477

Re: primary inner case

Johnny The answer is generally no. The chain may rub the inner chaincase. In 56 Ariel fitted the FERC and extended the gearbox shaft. They also fitted a thicker spacer behind the engine sprocket to bring the sprockets back into alignment. The later inner chaincase has a 3/16 extra standoff where it ...
by david.anderson
Wed Jul 31, 2019 10:08 am
Forum: Ariel Talk
Topic: A bit warm today-good for gearbox filling
Replies: 10
Views: 1605

Re: A bit warm today-good for gearbox filling

Alan While in the kitchen did you also realize that the dishwasher is also a good parts washer, and the stove is great for setting paint and heating crankcases or an alloy cylinder, and those small measuring jugs also measure oil, numerous uses for kitchen scales,the microwave is great for seasoning...

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