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by john.whiting
Wed Dec 05, 2012 10:16 am
Forum: Four stroke
Topic: kickstart oil seals
Replies: 4
Views: 825

If youre keen on modern seals,you might try a quad o- ring or two to slightly compress in the space,and seal up against the face of the steel bush.A more effective seal is called a Lambda seal,they start at 20mm shaft dia.and up.Neither require machining.I dont think anything is necessary,if you hav...
by john.whiting
Tue Dec 04, 2012 11:45 am
Forum: For sale/wanted - Parts
Topic: Sturmey Archer Gearbox parts wanted
Replies: 10
Views: 3015

LS boxes allways seem to break second,you will be able to buy new gears from the BS club,or one of the BS specialists.I just weld up the broken teeth with stainless,and reprofile by eye with a grinder.There was a heap of Panther S/A gearbox stuff sold on aus ebay a little while ago by a fellow who m...
by john.whiting
Sun Dec 02, 2012 11:06 am
Forum: Ariel Talk
Topic: Ariel ride photo's
Replies: 10
Views: 1087

Im allways amused when some 12yr old comes up and tells you that the tanks wrong.I say the tanks right,its the bikes wrong,that stuffs them up.Or someone says the tanks wrong,I need one like that.Regards John.
by john.whiting
Mon Nov 26, 2012 11:39 am
Forum: Four stroke
Topic: Burman GB gearbox
Replies: 25
Views: 6630

I dont usually comment on oil,but there seems to be an ever increasing number of owners who clean their old bikes with pressure cleaners, same as their moderns.Add that to EP oil,put the bike away until next month, and there might be problems.Regards John.
by john.whiting
Mon Nov 26, 2012 11:28 am
Forum: Four stroke
Topic: oil pump differences.
Replies: 10
Views: 2467

Triumph single or twin?Regards John.
by john.whiting
Sun Nov 25, 2012 10:43 am
Forum: Four stroke
Topic: Burman GB gearbox
Replies: 25
Views: 6630

EP oil does attack some bronze bushings,and so the type of bronze used was changed to allow for this. It attacks sintered bronze[oilite] bushes in Burman boxes .Hypoid oil works by chemically reacting with bare steel,caused when the oil film on gears breaks down,there by protecting the gears from sc...
by john.whiting
Thu Nov 22, 2012 10:58 am
Forum: Four stroke
Topic: LF transmission problem
Replies: 2
Views: 485

It seems you must be compressing the starter ratchet assy until it engages permanently.If the nut cant be screwed up without jamming things,then you must either fit a spacer,or simply fix the nut in place with some red loctite.It seems you may have parts missing as well as too many clutch plates.Reg...
by john.whiting
Thu Nov 22, 2012 10:37 am
Forum: Four stroke
Topic: 1955 Huntmaster Questions
Replies: 7
Views: 1860

What I said was not correct,I have tipped out a large box of old mags and drive gears,and clarified the matter. The A7/10 type auto advance mag can be converted to manual with the corresponding end,most commonly fitted to Matchless G9s of the early fifties.This end has a characteristic domed cover w...
by john.whiting
Thu Nov 22, 2012 10:01 am
Forum: Ariel Talk
Topic: Question on soldering
Replies: 12
Views: 1498

The flare nuts have some unusual threads,you might have to make your own taps.This is not difficult,silver steel is plenty good enough for brass.If you make the nuts and nipples then you could use cycle or brass thread in corresponding parts.Regards John.
by john.whiting
Wed Nov 21, 2012 10:41 am
Forum: Four stroke
Topic: 1955 Huntmaster Questions
Replies: 7
Views: 1860

Im not positive,but I think that the manual advance mag has a different end drilling to the auto advance mag,however a mag from a Matchless CSR twin wll be of the compy type,and were once very common.[all the motors blew up].An advance unit shouldnt be hard to find ,there are usually one or two on e...

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