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by nevhunter
Sun Jan 18, 2026 9:59 pm
Forum: Four stroke
Topic: Mk1 V/V guide clearances
Replies: 3
Views: 100

Re: Mk1 V/V guide clearances

It Tells you, Just above A bit less on the Inlets will reduce oil consumption and they rarely grab when Oil s around. Not so with the exhausts. Try to have the finish good or rapid wear Happens.. Nev
by nevhunter
Sun Jan 18, 2026 3:30 am
Forum: Main Chat Forum
Topic: 1955 Square 4 mk2 wiring diagram
Replies: 4
Views: 255

Re: 1955 Square 4 mk2 wiring diagram

I don't want to Ruin your day. But have the crankshafts Had the Bungs removed and oilways cleaned? Nev
by nevhunter
Sun Jan 18, 2026 1:40 am
Forum: Suppliers
Topic: High Quality Taps and Dies
Replies: 1
Views: 203

Re: High Quality Taps and Dies

In Australia, Suttons are still Making quality drills and adjustable reamers. I'm sure they will export and the AUD is Low so good Value. Nev
by nevhunter
Sun Jan 18, 2026 1:28 am
Forum: Four stroke
Topic: Oil circulation procedure
Replies: 5
Views: 181

Re: Oil circulation procedure

Earth the lead if you take the Plug out. The Magneto doesn't like an open circuit. On singles I put oil in the Motor. About 1/2 half a cup plus a bit in the Ex rocker box and that will oil the cams and the rest till you check the flow. Paul J has covered it well. Pays to replace the Balls also They ...
by nevhunter
Sat Jan 17, 2026 2:17 am
Forum: Four stroke
Topic: Minimum oil level transfer
Replies: 2
Views: 148

Re: Minimum oil level transfer

It's only for 'Looks"' isn't it? On the singles, the Oil in it hardly ever gets much above warm. Nev
by nevhunter
Thu Jan 15, 2026 11:34 pm
Forum: Electrics
Topic: Battery not charging
Replies: 6
Views: 184

Re: Battery not charging

Batteries left completely FLAT even for say a Month can be difficult to recover. Keep them fully charged and save Money and time. There ARE some fancy chargers Programmed to recover batteries but you have to make sure Nothing gets Hot . All cells must recover. ANY Gel/paste Battery that gets hot is ...
by nevhunter
Mon Jan 12, 2026 5:07 am
Forum: Four stroke
Topic: Mk1 return relief oil deflector (inside crankcase)
Replies: 10
Views: 411

Re: Mk1 return relief oil deflector (inside crankcase)

White Metal, (babbit) Lasts a LOT longer when the Layer is quite THIN. It has to be well tinned to the Metal its In. Thicker Layers Fatigue and large Areas Break out .010" Ten Thou or 1/4 Mil is Enough thickness. You Must bore and centre everything carefully to ensure even thickness IF you do run a ...
by nevhunter
Mon Jan 12, 2026 4:55 am
Forum: Four stroke
Topic: Mk1 return relief oil deflector (inside crankcase)
Replies: 10
Views: 411

Re: Mk1 return relief oil deflector (inside crankcase)

Oversize Pipes with thinned (HOT) Oil may not Lift the Oils easily OR you may have an airleak/crack somewhere. Babbit was the earlier applications Replaced with Higher Load metals Like Copper -Lead and alutin both having a higher frictional Coefficient and requiring More Oil flow to cool it. ie ...
by nevhunter
Sun Jan 11, 2026 12:57 am
Forum: Ariel Talk
Topic: Never mind the poor old BM....
Replies: 9
Views: 394

Re: Never mind the poor old BM....

The OTHER engine is a rough Mid 20's HARLEY Davidson "J" Model. Nev
by nevhunter
Sun Jan 11, 2026 12:54 am
Forum: Ariel Talk
Topic: Never mind the poor old BM....
Replies: 9
Views: 394

Re: Never mind the poor old BM....

JAP Speedway Motors use the same metal in the cases.. It goes from shiny to a lovely Grey by Itself. Keep Mud off it. It CAN Be Welded IF you Know what you are doing. It has a Higher rate of expansion with temp than aluminium. New Castings COULD be done but where would you get the Barrels and Heads ...