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by nevhunter
Fri Dec 27, 2019 6:51 am
Forum: For sale/wanted - Parts
Topic: CP mid cover
Replies: 22
Views: 830

Re: CP mid cover

Times were tough then, and they had to sell against a lot of ex WD surplus stuff. Be interesting to know what the actual sales numbers were in that period. There's never any harm in asking, Wade. Nev
by nevhunter
Fri Dec 27, 2019 6:45 am
Forum: Main Chat Forum
Topic: 1950 Ariel red hunter 497cc VH piston rings
Replies: 10
Views: 392

Re: 1950 Ariel red hunter 497cc VH piston rings

That can happen with semi finished pistons. but not to the extent that you have and I doubt Hepolite did semi finished ones. While it's not considered a good thing to have a lot of extra ring land depth, for ordinary running I doubt you will have a problem. Nev
by nevhunter
Thu Dec 26, 2019 11:30 pm
Forum: For sale/wanted - Parts
Topic: CP mid cover
Replies: 22
Views: 830

Re: CP mid cover

Good luck with trying to find a 46. You generally find those cases are matched when polished or even rough semi unfinished as the WD ones were. WD have the numbers on the outer cover and" New Parts" ones are un numbered. Either way the WD inner is un nunbered. If you obtained one you could...
by nevhunter
Thu Dec 26, 2019 11:21 pm
Forum: Four stroke
Topic: valve springs too strong?
Replies: 12
Views: 908

Re: valve springs too strong?

I have no idea why they would plate that shaft, at all. Brian, I've not run the very heavy valve springs on any VH/VCH for years, It's hard to get cam and follower life with them that strong. The Trigger lever lift is better than the two lever set up. There's longer levers available too. That set up...
by nevhunter
Thu Dec 26, 2019 10:55 pm
Forum: Main Chat Forum
Topic: 1950 Ariel red hunter 497cc VH piston rings
Replies: 10
Views: 392

Re: 1950 Ariel red hunter 497cc VH piston rings

You often don't know whether the piston was originally semi finished or a larg(er) size reground. Always check the rings don't bottom in the grooves . When a straight edge is held in line with the skirt you should have at least .005" clearance at the bottom of the grooves or you risk breaking r...
by nevhunter
Mon Dec 23, 2019 9:36 pm
Forum: Four stroke
Topic: Gearbox and clutch questions
Replies: 8
Views: 578

Re: Gearbox and clutch questions

I second what Paul has said there. Cork is very much the "best" idea with lighter springs required and a better action (feel)Don't have any more spring pressure that is required to get a non slipping situation PLUS a small margin. A dry cork clutch is good for all but perhaps straight comp...
by nevhunter
Sun Dec 22, 2019 1:32 am
Forum: Four stroke
Topic: 1958 Square 4 cylinder head problem
Replies: 19
Views: 888

Re: 1958 Square 4 cylinder head problem

I've used an aluminium 550 Fahr engine rattle can VHT, to re use solid copper quite successfully. Light coat both sides evenly and allow to air dry and assemble with nothing else different. Many other type gaskets need retensioning fairly quickly after getting nice and hot. You can do this without l...
by nevhunter
Fri Dec 20, 2019 10:35 pm
Forum: Four stroke
Topic: LAYSHAFT BUSH replacement
Replies: 12
Views: 627

Re: LAYSHAFT BUSH replacement

You have to get the bush lined up exact for the pin in the flange. Scribe a line along it to make it easier. Nev
by nevhunter
Fri Dec 20, 2019 7:55 am
Forum: Main Chat Forum
Topic: Pushrod lengths
Replies: 3
Views: 312

Re: Pushrod lengths

You might have to reduce the diameter of the "extra"bit that goes into the end piece once you shorten it. it's a smidgen under the full diameter of the tube if I recall correctly. If the fit is a bit loose, you could insert a hollow plug inside it to expand it slightly. It's only the alloy...
by nevhunter
Fri Dec 20, 2019 4:32 am
Forum: Main Chat Forum
Topic: Pushrod lengths
Replies: 3
Views: 312

Re: Pushrod lengths

The steel ones are just pressed in originally. I made a special slide tool to get them apart. To shorten is easy. Make a bit more of the end fit and cut the surplus off and fit it back together. If you are making new ones using the old ends would use chromolly tube or try GOOD stainlessTUBE as it's ...

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