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by Brian_Walker
Thu Nov 21, 2019 12:14 pm
Forum: Member's Bikes
Topic: Can't get head on with engine in frame.
Replies: 2
Views: 64

Can't get head on with engine in frame.

Anyone seen this, just finished rebuilding the engine and fitted to my 1951 plunger frame. The bottom end is all bolted in but there is no room to get the head on (any-which way) its about 1/8 -1/4 too high and hits the top tube of the frame. I know I can unbolt the engine and lower it or undo the t...
by Brian_Walker
Sat Nov 02, 2019 7:08 am
Forum: Four stroke
Topic: VCH Base Gasket Thickness
Replies: 0
Views: 332

VCH Base Gasket Thickness

Just fitting my new 9:1 piston to my VCH (not round base) in the past I had a 0.080" base gasket to drop the compression ratio to 12:1 with a special I had for alcohol now going back to 98 octane petrol and aiming for about 8.5:1 initially to keep my crankcases safe. I purchased a gasket kit bu...
by Brian_Walker
Mon Sep 30, 2019 1:46 am
Forum: Four stroke
Topic: End float W/NG crank
Replies: 3
Views: 1460

Re: End float W/NG crank

Just doing my VCH, which should be the same. Waller quotes 0.008-0.012" , Phil Irving suggested up to 0.018" for singles. As Waller was the service foreman for the Ariel Factory would use his numbers, I am still waiting for shim stock to make another washer and will make mine closer to 0.0...
by Brian_Walker
Tue Sep 17, 2019 9:00 am
Forum: Four stroke
Topic: gears two neutrls
Replies: 12
Views: 1432

Re: gears two neutrls

Have a look at this video it explains all including "false neutral"
https://www.youtube.com/watch?v=plr2YoDyr8Q
by Brian_Walker
Sun Sep 15, 2019 5:08 am
Forum: Four stroke
Topic: Another Single Cam Thread
Replies: 3
Views: 2930

Re: Another Single Cam Thread

Thanks David, I must check mine again looking at the cams from the same perspective as yours to check the relative amounts taken off my base circle. I have a 3rd cam that is somewhere between the two but will give the drilled gear cam a go first. Still fiddling with my crank shaft endfloat, Waller s...
by Brian_Walker
Fri Sep 13, 2019 11:48 pm
Forum: Four stroke
Topic: gearbox outer case
Replies: 4
Views: 455

Re: gearbox outer case

Double check the fit of the kickstarter and gear shafts through the bushes in the cover before fitting them to the inner cover, also you can remove all studs and see if it offers up straight it could be studs are slightly bent it will also allows you to run the covers over a bit of wet and dry paper...
by Brian_Walker
Sun Sep 08, 2019 3:00 pm
Forum: Four stroke
Topic: Another Single Cam Thread
Replies: 3
Views: 2930

Another Single Cam Thread

I have just started the rebuild on my 1952 VCH engine, I have 3 cams to choose from all are two lobe cams. I have clocked the two below but at only 10 degree steps off the pushrods with no head. The question is which one to use? I am now only going to use a standard JP High Comp piston on petrol ins...
by Brian_Walker
Wed Aug 28, 2019 11:47 am
Forum: Four stroke
Topic: Front Wheel Spindle Size
Replies: 3
Views: 1010

Re: Front Wheel Spindle Size

Thanks Eero,
After posting my question I engaged brain and searched for left hand thread axle and found 1967 BSA B44 looks a close match for lower fork legs and spindle. Fancy a 1967 BSA hub being so similar to a 1950 Ariel!
by Brian_Walker
Wed Aug 28, 2019 11:24 am
Forum: Four stroke
Topic: Front Wheel Spindle Size
Replies: 3
Views: 1010

Front Wheel Spindle Size

Trying to sort a problem, I had ordered a new front axle from Drags and it has now arrived (it was for my 51/52 VCH (51 frame). I find that it is about 20mm shorter than the old axle, and the threaded end is right hand thread about 15.7mm major diameter instead of 14.mm left hand thread on my origin...
by Brian_Walker
Sun Apr 07, 2019 12:06 am
Forum: Four stroke
Topic: Push Rod Tube Oil Seals
Replies: 9
Views: 642

Re: Push Rod Tube Oil Seals

Nice work Bob

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