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by Pete.Silson
Sun Apr 28, 2019 10:02 am
Forum: Four stroke
Topic: HWH brake shoes
Replies: 2
Views: 165

Re: HWH brake shoes

From (limited) knowledge gained from my SQ4 dealings the 1" linings are from 1937 and earlier QD rear hubs, the 1-1/8" are from later QD and fixed rear hubs. C15/28 (4100-32) 1937 (and earlier) QD rear hub, lining 6-5/8"x 1" x 3/16" C15/97 (4385-38) 1938 onwards fixed and QD...
by Pete.Silson
Mon Apr 08, 2019 12:41 pm
Forum: Four stroke
Topic: PA tank panel
Replies: 2
Views: 163

Re: PA tank panel

Is this what you need? I can take some measurements if you need them.
4G Tank Panel.jpg


Pete
by Pete.Silson
Tue Mar 05, 2019 7:59 pm
Forum: Four stroke
Topic: BA kickstart quadrant stop rubber advice
Replies: 9
Views: 259

Re: BA kickstart quadrant stop rubber advice

I've ordered some nylon suspension bushes and will see if they can be fitted inside the old metal cap. I wouldn't expect the nylon to deteriorate in gearbox grease for a year or two. bushes 1a.jpg Possibly a job for that new-fangled 3D printing.... Does anybody have access to a 3D printer I can thin...
by Pete.Silson
Tue Mar 05, 2019 2:25 pm
Forum: Four stroke
Topic: BA kickstart quadrant stop rubber advice
Replies: 9
Views: 259

Re: BA kickstart quadrant stop rubber advice

So they have specified the wrong elastomer. How about looking for a suitable bit of viton tube?


Simon, Is there a particular grade of Viton I should be looking for?
by Pete.Silson
Tue Mar 05, 2019 1:34 pm
Forum: Four stroke
Topic: BA kickstart quadrant stop rubber advice
Replies: 9
Views: 259

Re: BA kickstart quadrant stop rubber advice

Did it have the metal ring around it, like a small Silentbloc bush? Simon, Yes it had the metal ring however, when first fitted, the one from Drags looked like it had been a smaller inside diameter and been roughly drilled out. The rubber inside the bush has now broken down to to a slimy black mush...
by Pete.Silson
Tue Mar 05, 2019 11:21 am
Forum: Four stroke
Topic: BA kickstart quadrant stop rubber advice
Replies: 9
Views: 259

BA kickstart quadrant stop rubber advice

I rebuilt my BA box 2 years ago and replaced the kickstart quadrant stop rubber (3338-33). I have just had the outer cover off and find that the rubber stop has completely disintegrated. I am surprised that it should fail so quickly especially since the gearbox has done less that 1000 miles since th...
by Pete.Silson
Mon Feb 18, 2019 3:42 pm
Forum: Main Chat Forum
Topic: Nuts for Watsonian Sidecars
Replies: 3
Views: 300

Nuts for Watsonian Sidecars

Does anybody know where I can source some 3/4" x 20 tpi nuts for a 1950's Watsonian sidecar? I assume they are either BSCy or UNEF. Zinc plated would be fine but ideally I would like Nyloc or similar for the wheel axle nuts.

Pete
by Pete.Silson
Sat Feb 09, 2019 10:54 am
Forum: Four stroke
Topic: Pistons for iron SQ4
Replies: 2
Views: 186

Re: Pistons for iron SQ4

Great offer Paul, I'll PM you to arrange a time. Pete
by Pete.Silson
Fri Feb 08, 2019 12:48 pm
Forum: Four stroke
Topic: Pistons for iron SQ4
Replies: 2
Views: 186

Pistons for iron SQ4

I am looking for pistons for an iron 4G. My bores are currently +0.020" but are in need of a rebore. I am investigating a number of options but would appreciate some advice/experience please. My choices seem to be: ⋅ Source some decent used (or NOS) standard pistons; ⋅ Use D...
by Pete.Silson
Mon Jan 14, 2019 2:41 pm
Forum: Four stroke
Topic: solex - poor mpg
Replies: 21
Views: 945

Re: solex - poor mpg

Simon

I think that there were 2 originally which is what I have now.

solex.jpg

Interestingly new float valves for VW Beetles, which are a similar carburettor, come with 3 different thickness washers.
See http://www.vw-resource.com/float_needle.html#washers

Pete

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