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by Mike Nash
Wed Nov 06, 2019 5:54 pm
Forum: Member's Bikes
Topic: My 48 VH Red Hunter
Replies: 9
Views: 1398

Re: My 48 VH Red Hunter

Is that an A Series engine on the floor to the right the frame? Are you also a Morris Minor Man? I do hope so!
Regards from MikeN.
by Mike Nash
Mon Sep 09, 2019 7:43 am
Forum: Four stroke
Topic: 1955 NH gearbox oil change
Replies: 12
Views: 3465

Re: 1955 NH gearbox oil change

Ah, Molyslip! Long ago & far away circa 1962 I had a Matchless V twinned Brough sidevalver (prob of 1932) which had spent its life pulling sidecars and then a builder's box full of cement, etc. On my first couple of runs at high speed it tightened up, and me being young and impressionable, I put...
by Mike Nash
Mon Sep 02, 2019 9:55 am
Forum: Four stroke
Topic: New VB piston
Replies: 17
Views: 2039

Re: New VB piston

Klaus, Is your new piston to replace that in your disaster recorded in your thread of April 23,2015 entitled "VB piston missing a bit"? Can you tell us about the new piston's source and make? A point that bother's me is what you new piston might be heavy; as a guide my split skirt +20 thou...
by Mike Nash
Tue Aug 13, 2019 9:26 pm
Forum: Four stroke
Topic: Removing the ringds from a VB piston
Replies: 13
Views: 2860

Re: Removing the ringds from a VB piston

Thanks for that Murray. I've tried soaking for weeks in acetone, hours in a sonic bath and heat cycling as suggested above but have had no luck and now I'm trying to cut them out with a small disc. But as Nev says one slip and I've a wrecked piston! Its nerve wracking and can only be done for a few ...
by Mike Nash
Wed Jul 10, 2019 8:17 am
Forum: Four stroke
Topic: Removing the ringds from a VB piston
Replies: 13
Views: 2860

Re: Removing the ringds from a VB piston

Thanks for that idea Paul. I've got one but hadn't thought of it. I'll give it a go.
MikeN.
by Mike Nash
Tue Jul 09, 2019 6:02 pm
Forum: Four stroke
Topic: Removing the ringds from a VB piston
Replies: 13
Views: 2860

Re: Removing the ringds from a VB piston

Thanks for your advice, gents. I've had the piston inverted and soaking the rings in acetone for 3 weeks but no luck on easing them. Heating and cooling was no help either so I'm using a small cutter disc in a small 12v hand held drill device to cut out a piece of the upper ring. I'll let you know h...
by Mike Nash
Thu Jun 27, 2019 7:55 am
Forum: Four stroke
Topic: Replacing a VB tappet guide
Replies: 4
Views: 474

Re: Replacing a VB tappet guide

VB tappet removal 27june219.jpg Thank you for your advice, gentlemen! I feared that after some 63 years in place it would be more difficult to remove than it actually was but with a sleeve and cheap threaded rod it came out quite easily and smoothly. The most difficult part was finding a suitable s...
by Mike Nash
Mon Jun 24, 2019 8:14 pm
Forum: Four stroke
Topic: Removing the ringds from a VB piston
Replies: 13
Views: 2860

Removing the ringds from a VB piston

Dear all, I've this old piston that I hope has a bit of remaining life - if I can only replace the rings! The problem is getting the old ones out. It was running on Castrol R and the top two rings are well and truly stuck; I can't get even a dentist's tooth pick in at the ring gap (probably lack of ...
by Mike Nash
Mon Jun 24, 2019 8:05 pm
Forum: Four stroke
Topic: Replacing a VB tappet guide
Replies: 4
Views: 474

Replacing a VB tappet guide

Dear all, As you can see below I need to replace a VB tappet guide and I seek advice on how its done. It seems to be exactly 2 inches long and if I drive it down into the valve chest to remove it there seems to be exactly the same clear length above it in the valve chest before it hits the valve gui...
by Mike Nash
Fri Jun 14, 2019 8:21 am
Forum: Four stroke
Topic: VB Exhaust valve guide play
Replies: 13
Views: 1101

Re: VB Exhaust valve guide play

". . . as it could allow entry of grit and dirt which would accelerate guide wear ?" No, not at all Bevan! The cunning VB design has everything sealed up. You'll see that the guide's top is within the exhaust port in the expected place and the bottom is within the valve chest. The parallel...

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