Search found 943 matches

by Richard Negus
Mon Jun 10, 2019 9:53 pm
Forum: technical interest and new ideas
Topic: Boyer ignition
Replies: 9
Views: 125

Re: Boyer ignition

The Boyer has all it's gubbins potted in a polyurethane compound, making access very difficult.
Paddy Ryan at Norton found a solvent for it and could see what was in there, but as far as I can remember, didn't manage to repair one.
Have you asked Boyer if they can repair them?
R.
by Richard Negus
Sat Jun 01, 2019 8:52 am
Forum: technical interest and new ideas
Topic: SU carb float needles
Replies: 5
Views: 119

Re: SU carb float needles

Hi Mark, It sounds like you have two, possibly three, problems. .the fuel tap should stop fuel supply to the carbs when the engine stops. There are overhaul kits available but my experience says replace the complete tap as the seating surface in the tap body may be corroded, something a new diaphrag...
by Richard Negus
Mon May 27, 2019 4:38 pm
Forum: for sale and wanted
Topic: Commander end plates, moly'd
Replies: 0
Views: 98

Commander end plates, moly'd

I have a very good pair of Commander end plates which I had moly'd some three years ago and haven't had a job that needed them. The molying was their first re-grind from original and all the joint faces and threads are excellent. I don't, unfortunately, have a centre plate to make a full set. RH pla...
by Richard Negus
Mon May 27, 2019 4:06 pm
Forum: technical interest and new ideas
Topic: Coils
Replies: 4
Views: 154

Re: Coils

IP2's never had Lucas coils as they were all originally CDI ignition. Lucas coils came in with the Classic. I believe genuine Lucas coils haven't been made for a long time, although you can buy replica coils in Lucas-style packaging, but possibly made somewhere in the East. You can buy good quality ...
by Richard Negus
Sat May 25, 2019 10:32 am
Forum: technical interest and new ideas
Topic: Capacitor wiring
Replies: 2
Views: 93

Re: Capacitor wiring

'Morning, You're talking about the big capacitor by the battery? If so, it's nothing to do with the ignition system but was fitted to IP2 machines with police equipment to smooth out voltage fluctuations as, say, the air horns compressor was switched on. That sudden voltage drop was alleged to affec...
by Richard Negus
Thu May 23, 2019 4:53 pm
Forum: general discussion (eveything else)
Topic: Steering Lock
Replies: 3
Views: 171

Re: Steering Lock

Mick,
Turn the key, clockwise I think, and push it in whilst wiggling the bars on full left lock.
After the lock has engaged with a slot in the steering stem, remove the key.

To unlock, insert the key and turn anti-clockwise, allowing the spring to push the lock body out again.

R.
by Richard Negus
Wed May 22, 2019 8:17 am
Forum: for sale and wanted
Topic: Norton Interpol 2 on Ebay now !
Replies: 5
Views: 306

Re: Norton Interpol 2 on Ebay now !

Interpol2471 wrote:
Sun May 19, 2019 11:18 pm
Did it sell ?
There is another on eBay now but that is a super rare IP2 1 of only 100 ever made with yamaha forks
Did I miss that one, as I don't see it today - just a fairly standard IP2 at Pontefract?

I presume it's 1010, on the market yet again.
R.
by Richard Negus
Fri May 17, 2019 7:48 pm
Forum: technical interest and new ideas
Topic: How do I tell if mine is twin or single rotor idle
Replies: 14
Views: 371

Re: How do I tell if mine is twin or single rotor idle

Hi Zed,
They were made by S&B, direct copies of K&N at half the price.
I have no record of the part numbers though.
R.
by Richard Negus
Wed May 15, 2019 1:28 pm
Forum: technical interest and new ideas
Topic: How do I tell if mine is twin or single rotor idle
Replies: 14
Views: 371

Re: How do I tell if mine is twin or single rotor idle

Yer 'tis, alongside the fan switch and above the sender for the temperature gauge.
4032-48.jpg
by Richard Negus
Tue May 14, 2019 4:13 pm
Forum: technical interest and new ideas
Topic: How do I tell if mine is twin or single rotor idle
Replies: 14
Views: 371

Re: How do I tell if mine is twin or single rotor idle

Pete, Without the retard box, it will run perfectly OK at engine speeds over about 1200 rpm, but will not idle smoothly below that. For general road riding, that's not a problem, but if you spend much of your time creeping along in traffic, you may find the engine temperature starts to rise. You may...
by Richard Negus
Tue May 14, 2019 12:45 pm
Forum: technical interest and new ideas
Topic: How do I tell if mine is twin or single rotor idle
Replies: 14
Views: 371

Re: How do I tell if mine is twin or single rotor idle

Pete, Before paying out for a new retard box, I suggest you first see if it runs on the Sparkrite. If not, then the MiniMagneto system is the one to go for. It uses the same trigger, but needs conventional Lucas-type ignition coils in place of the original CDI ones. I don't think AN have any thermoc...
by Richard Negus
Tue May 14, 2019 8:51 am
Forum: technical interest and new ideas
Topic: How do I tell if mine is twin or single rotor idle
Replies: 14
Views: 371

Re: How do I tell if mine is twin or single rotor idle

Hi Pete, Yours is almost certainly twin rotor idle as most of the singles were factory-converted to twin. That you have a temperature switch on the r/h housing is confirmation as that wasn't fitted to singles. The blanked-off pipes are main bearing oil scavenge connections that were discarded on lat...
by Richard Negus
Mon Jan 14, 2019 9:53 am
Forum: technical interest and new ideas
Topic: Non runner
Replies: 4
Views: 422

Re: Non runner

An ex-West Midlands bike, B950***, originally based at Coventry. Engine rebuild at 2k, engine/gearbox at 12k, engine rebuild at 24k, nothing else in the Shenstone service records. It may subsequently have had a service exchange engine fitted, stamped 'SX----' and not recorded in the factory records....
by Richard Negus
Sun Jan 13, 2019 11:55 pm
Forum: technical interest and new ideas
Topic: Non runner
Replies: 4
Views: 422

Re: Non runner

Hi,
If you can tell me the frame number, I can see from my factory and personal records if there's any history for it.
R.
by Richard Negus
Sat Dec 01, 2018 10:10 am
Forum: technical interest and new ideas
Topic: sealant
Replies: 1
Views: 244

Re: sealant

Terry, For the rotor housing joint faces, use a thin smear of Wellseal. Stationary gear O-rings, use high temp RTV, Loctite 5368 or similar. All other joint faces, use 5368 or similar. Both eccentric shaft nuts; Loctite 270, 150 lb.ft. Clutch nut; 270, 100lb.ft. Orange RTV is almost as bad as the Re...
by Richard Negus
Fri Nov 30, 2018 8:09 pm
Forum: login and say hello!
Topic: Removing old engine coating from IP2 housings
Replies: 6
Views: 665

Re: Removing old engine coating from IP2 housings

"A picture's worth a thousand words....." Fear not -that's normal. It's just discoloration by the pre-treatment and plating fluids. The joint face shows clean aluminium as it was ground to size after the plating process was completed. All other machined faces are completed before plating and will sh...
by Richard Negus
Fri Nov 30, 2018 3:01 pm
Forum: login and say hello!
Topic: Removing old engine coating from IP2 housings
Replies: 6
Views: 665

Re: Removing old engine coating from IP2 housings

How about a photo?
Depending on the age of your IP2, the coating was probably done by BAJ Coatings (now defunct) at Weston super Mare. One of their chemical dips left a dark grey finish to the un-machined areas.
R.
by Richard Negus
Fri Nov 30, 2018 9:35 am
Forum: login and say hello!
Topic: Removing old engine coating from IP2 housings
Replies: 6
Views: 665

Re: Removing old engine coating from IP2 housings

Hi, Welcome to the forum. Are you sure the surface you're seeing isn't the original silver powder coating that's gone hard and yellow with age? Try scratching the side of an outside fin to see if that's so. Usually, industrial strippers such as Thyssen Krupp in Tamworth get down to bare metal, no pr...
by Richard Negus
Thu Nov 29, 2018 10:12 am
Forum: technical interest and new ideas
Topic: F1 Sport seat unit
Replies: 6
Views: 664

Re: F1 Sport seat unit

Hi Terry, The pad is that size 'cos it's a close replica of those fitted to the JPS race bikes of the time. Other comments about it were along the lines of "Make it uncomfortable so the rider goes faster to get to the end of the race first". Seemed to work anyway! For one of the Rugeley twin-seat bi...
by Richard Negus
Thu Nov 22, 2018 9:39 pm
Forum: technical interest and new ideas
Topic: Commander colours
Replies: 9
Views: 683

Re: Commander colours

Tony,
Lookin' good!
Thirty years old design and still a modern touring bike.
R.
by Richard Negus
Thu Nov 22, 2018 10:46 am
Forum: technical interest and new ideas
Topic: Commander colours
Replies: 9
Views: 683

Re: Commander colours

Terry, To the best of my knowledge, all of the non-Grey colours were not specific to any make/model of other vehicle. Over the production period, several different paint shops were used so it's quite possible that that one's Candy Red was not quite the same as another's. For a non-rotary project, I ...
by Richard Negus
Wed Nov 21, 2018 9:30 pm
Forum: technical interest and new ideas
Topic: interpol timing marks
Replies: 1
Views: 236

Re: interpol timing marks

Sorry, there are none! But, the vertical axis of the engine is the line between eccentric shaft and the bottom stud. TDC is when the flywheel key is at either 9 o'clock to that line for the l/h rotor or 3 o'clock for the other. Full advance timing, although not critical, is alleged to be at 18 BTDC,...
by Richard Negus
Wed Nov 21, 2018 10:04 am
Forum: technical interest and new ideas
Topic: Commander colours
Replies: 9
Views: 683

Re: Commander colours

Terry, Whilst Jaguar Dorchester Grey was the standard colour, there were quite a few that were painted other colours and about six that were polished white self-colour mouldings like the police machines. The Candy Red ones tended to fade to a gold colour in strong sunlight, but the ones in metallic ...
by Richard Negus
Sat Nov 17, 2018 9:29 am
Forum: general discussion (eveything else)
Topic: Classic up for Auction
Replies: 7
Views: 754

Re: Classic up for Auction

You may be thinking of the prototype numbered PP001 which was used, amongst other things, the brochure photos.
It had a slab-sided tank and a very thin seat.
Now in a rotary enthusiast's private collection in Germany.
R
by Richard Negus
Thu Nov 15, 2018 10:22 am
Forum: general discussion (eveything else)
Topic: Classic up for Auction
Replies: 7
Views: 754

Re: Classic up for Auction

There are two air-cooled Norton rotaries in the Mecum catalogue. One, as above, is a converted IP2 described as a 'Classic' but bearing little resemblance to a genuine Norton Classic. Badly done too. But, there is also, according to the description as there's no photograph, genuine Classic LE001. Th...
by Richard Negus
Tue Nov 06, 2018 12:52 pm
Forum: technical interest and new ideas
Topic: spark plug caps
Replies: 8
Views: 767

Re: spark plug caps

With the 10 ohm caps, you can then use copper cored HT lead instead of the usual resistive cable.
R.
by Richard Negus
Mon Nov 05, 2018 8:08 pm
Forum: technical interest and new ideas
Topic: spark plug caps
Replies: 8
Views: 767

Re: spark plug caps

Following the man-who-knows (Julian Kemp), I bought a pair of 10 ohm straight caps from France via Ebay.
Reference is NGK SD10F, still available from France at £4.95 each.
R.
by Richard Negus
Thu Oct 25, 2018 1:04 pm
Forum: technical interest and new ideas
Topic: clutch plates
Replies: 2
Views: 452

Re: clutch plates

Tch, tch! Bronze plate first and the last plate against the alloy pressure plate should be steel.
R.
by Richard Negus
Wed Oct 24, 2018 7:00 am
Forum: technical interest and new ideas
Topic: Woodruff Key
Replies: 7
Views: 591

Re: Woodruff Key

There are two popular types of oil seal, known as R21 and R23. R21 is the standard type of seal, single sealing lip with a garter spring on the inner oily side. R23 is an option that has the sealing lip as above and also has a second wiper lip on the other dry, or outer, side. The purpose of the sec...
by Richard Negus
Tue Oct 23, 2018 8:40 am
Forum: technical interest and new ideas
Topic: Woodruff Key
Replies: 7
Views: 591

Re: Woodruff Key

John,
The spring always faces the more oily side, in this case towards the mainshaft bearing.
Your original seal would have had a spring, perhaps it became dislodged and lost when removing the seal from the gearbox plate.
R.