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by john.whiting
Fri Jan 04, 2013 1:06 pm
Forum: Four stroke
Topic: Flywheel alignment
Replies: 29
Views: 3995

I have allways held the opposite nut with another socket and bar,let the bar rest on the bench,while holding the flywheels down with one hand and tightening with your torque wrench.This is the method I use on HDs at about 3x the figure mentioned.I think ,if you wanted to,you could make a flywheel ho...
by john.whiting
Wed Jan 02, 2013 10:16 am
Forum: Four stroke
Topic: Flywheel alignment
Replies: 29
Views: 3995

I would check the flywheels for flatness where the pin flanges contact,a quick pass with a surface grinder would be ideal.This is the area of contact that will cause distortion if its not flat and parallel.Lapping tapers is not recomended,as ringing is the likely result.Scraping would be the preferr...
by john.whiting
Tue Jan 01, 2013 11:06 am
Forum: Four stroke
Topic: Flywheel alignment
Replies: 29
Views: 3995

Thats a nicely restored South Bend,must be a 10 or 11 judging by the flywheel size.I would not true flywheels between centres ,too many likely variables. To my knowledge ,only Harley and Indian ever used centres to check flywheels,English manufacturers recomend against it.Alpha used to turn out a tr...
by john.whiting
Sun Dec 23, 2012 11:07 am
Forum: Four stroke
Topic: VH Steel Flywheels as basis for custom crankpin
Replies: 8
Views: 1095

If you preheat,you will avoid hard weld.Depending on carbon and alloy content,preheat will range from 250c to 600c.Hard weld can be annealed by heating to dull red 600c and soaking for about 1hr.Can some one explain to me why beginners allways try to do an out of position weld on the front forks of ...
by john.whiting
Sun Dec 23, 2012 10:51 am
Forum: Ariel Talk
Topic: strange bolt head
Replies: 7
Views: 1099

Security nuts for mag wheels often have strange combinations of splines etc,and someone has probably driven on a convenient socket to remove a rounded plug.I thought all quality sockets were 12 point bi hex,impact sockets being usually six sided.When bolt heads on dozer final drive housings are worn...
by john.whiting
Thu Dec 20, 2012 10:26 am
Forum: Four stroke
Topic: Iron head bolt size ?
Replies: 6
Views: 895

Very common to break off the corner lugs,my brother did it to a neighbours bike when he was 12.Assuming that the pieces are missing,you will need to build up the metal.If you use any arc weld process,you must preheat the head to at least dull red heat,or the welds will be hard and unmachinable.If yo...
by john.whiting
Sat Dec 15, 2012 10:02 am
Forum: Four stroke
Topic: VH500 main bearing size
Replies: 13
Views: 1921

R&M seem to have doubled their prices,but of course I didnt pay VAT. 34 quid for a ball,the're having a lend of you.5 would be closer to the mark.Go for the cheapest.Regards John.
by john.whiting
Fri Dec 14, 2012 10:25 am
Forum: Four stroke
Topic: VH500 main bearing size
Replies: 13
Views: 1921

Something else to consider,different dimension spacers were used with ball+ball and roller+ ball main bearings on the drive side.Regards John.
by john.whiting
Fri Dec 14, 2012 10:16 am
Forum: Four stroke
Topic: VH500 main bearing size
Replies: 13
Views: 1921

I had no idea that R&M were still going,until I was complaining about the ridiculous prices quoted by mainstream bearing outlets for the rollers in a prewar truck gearbox,and someone suggested I try them.Their prices were about 1/3 what I was quoted by a NOS bearing dealer,and about 1/10 of SKF ...
by john.whiting
Thu Dec 13, 2012 9:20 am
Forum: Four stroke
Topic: VH500 main bearing size
Replies: 13
Views: 1921

I would suggest that you buy your bearings from Ransom and Marles,they only make these antique Imperial sizes,and they have a website that you can purchase from.If you go to your unfriendly local bearing shop,you will be quoted outrageous prices from the likes of SKF on a take it or leave it basis.S...

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