The P11 thread

[p400]

Quick query - What is the inner and outer length of the P11 front brake cable?
I bought one from a supplier and it is a tad short but I think it is because I have a different hub (the lever is straight and at the bottom front of the hub rather than top front - meaning there needs to be an extra couple of inches of wire).
If:
- anyone has the original measurements, that would be great; and
- if anyone has the hub described above, and the measurements, that would also be great!
Thanks
Huw

What are the dimensions of what you received?
A picture of your hub would be helpful.

 

[hrwat1]

Will post a picture tonight (took it this morning but can't upload until I get back from work).
Measurements are 1070 mm (outer) and 840 mm (inner).

Huw

 

[hrwat1]

As an aside, a friend measured it out (I was away over the weekend) and suggested that by taking 130mm off the outer cable, the existing one could be fitted. I have not verified this.

 

[p400]

I have finally recognized your 1967 P11 from online info. Congratulations on the hard work you are putting into this project.
I do not think you want to alter the outer housing on this new front brake cable. You need to fab a new inner wire....and this is not hard to do.
Or a local motorcycle shop could possibly do this .....all of my local shops are dktafahitg about bikes/technology older than 2001.
A local bicycle shop would possibly be more knowledgeable about cable fab......and have supplies, wire/fittings, on hand.
Thanks for the photos as it always makes the thread way more informative.
I will try and get A & B measurements from my OEM and new 2014 replacement cable later today.

 

[texasSlick]

by p400 » Fri Sep 26, 2014 6:22 pm

"I am shopping for replacement Norton # 000950 oil hose, listed as 1/2" neoprene hose. This is to replace the hoses from the oil tank to the engine. What came off the P11 for both oil hoses to the tank was 3/8" vapor fuel hose. What are owners using for this hose please?"

I use 5/16" fuel hose on my Atlas..... 3/8" is too loose on the fittings.
There is very little pressure on these hoses, so most anything will do. Reinforced high pressure hoses of 5/16" ID gets too bulky for my likes.

Slick

 

[p400]

looked at OEM and new 2014 replacement front brake cable
adjuster is diff, someday I will use OEM adjuster in a custom cable.
OEM cable ......A=1026mm, B=165mm
new cable .....A=1026mm, B=175mm

 

[p400]

I use 5/16" fuel hose on my Atlas..... 3/8" is too loose on the fittings. There is very little pressure on these hoses, so most anything will do. Reinforced high pressure hoses of 5/16" ID gets too bulky for my likes. Slick

I don't think that the 000950 P11 oil hoses are the same as the Atlas. The 3/8 that was on this P11 was way too tight a force fit, so I am preferring a 7/16" to be used in place of 1/2" OEM.

 

[p400]

Anybody we know?
2014 THE MEET - August 23 & 24th in Tacoma, Washington

 

[hrwat1]

Thanks P400, it does seem like my outer cable is too long based on those measurements...leaving me to either increase length of the inner and have a 'loopy' cable or shorten the outer...of course, necessary amounts of play need to be allowed for.
I have a local bike (push bike) shop that may be able to assist but I always assumed that the wire gauge would be much thinner?
Huw

 

[p400]

Thanks P400, it does seem like my outer cable is too long based on those measurements...leaving me to either increase length of the inner and have a 'loopy' cable or shorten the outer...of course, necessary amounts of play need to be allowed for.
I have a local bike (push bike) shop that may be able to assist but I always assumed that the wire gauge would be much thinner?
Huw

Huw, using the AB measurements, what are the dimensions of your cable?

 

[hrwat1]

Thanks

I have an inline mini brake switch on the cable (as part of setting it up to pass a Roadworthy in Japan - where I will be moving myself and it shortly).
However, the overall A and B measurements are (ignoring my earlier measurements, which were poorly articulated (outer I meant total, inner I meant the outer cable - it was an early morning! - measured off different points)

Measured according to the diagram...
A: 880
B: 168

Huw

 

[CanukNortonNut]

Thanks

I have an inline mini brake switch on the cable (as part of setting it up to pass a Roadworthy in Japan - where I will be moving myself and it shortly).

Hrwat1
You may not have a problem so much with safety regulations in Japan, but more so with emissions. :? Their regulations are a lot more stringent so check this before. I would recommend emailing this guy. http://www.easternbeaver.com/ He is on the INOA links and lives in Japan. You might want to have a chat.
Regards,
Tom
CNN

 

[p400]

Hot Rod Magazine July 1967, available on Ebay for not much, looks like good info, I have got one coming now.

 

[p400]

The Motor Cycle picture set is good 1967 information for early P11 restoration.... all photos of RGO45E
headlamp cover is quite distinctive.
Was this checkerboard cover an available accessory in the UK for headlamp protection? details? still available?
Tax disc, rear number plate, cable ties, etc......good photo set.

 

[p400]

Bill, I am having difficulty running the vent tube from a steel oil tank (P11A) on my P11, as the P11 seat contacts the cross member for support.
Does the P11A seat allow clearance for the vent tube to run over the cross member? does the P11A run down the left side of the rear fender rather than the right?
Thank you

 

[BillT]

From what I've seen, the front of a P11A seat is similar to a P11. The difference at the back is the P11 slides onto a pair of pins at the rear frame crossover. The P11A is over 5" longer and the back is secured by a pair of studs mounted to the seat pan that run through the flat crossover piece on the rear fender support loop.

Since these seats are held in place by a tongue that slides under the back of the gas tank, I think it makes sense that the pans would rest on that front cross piece.

There should be enough room to feed the vent pipe between the cross piece and the oil tank - in other words go under instead of over as I did on my Ranger. The Ranger seat is quite different than the other P11s, with its steel, rather than fiberglass, pan and different mounting system. The front of a Ranger seat slides onto a pin (visible in your picture just in front of the vent tower and covered with rubber tubing), and the back bolts onto the shock bolts via brackets.

 

[p400]

Thanks Bill, I now understand the Ranger seat is self supported thru the mounts, allowing space to run the vent tube over. There is not much space to run the vent tube under the cross member.......so I am looking for very thin wall tubing to allow this. This could be resolved by using a short piece of metal tube under the cross member and a spliced rubber tube out the rear. I am not sure yet why this issue exists for this installation, might be different with alloy oil tank

 

[cjandme]

Thanks

I have an inline mini brake switch on the cable (as part of setting it up to pass a Roadworthy in Japan - where I will be moving myself and it shortly).

Hrwat1
You may not have a problem so much with safety regulations in Japan, but more so with emissions. :? Their regulations are a lot more stringent so check this before. I would recommend emailing this guy. http://www.easternbeaver.com/ He is on the INOA links and lives in Japan. You might want to have a chat.
Regards,
Tom
CNN

Hey there hrwat, I'm currently living in Japan just south of Yokohama and have my '75 MK3 850 with me...PM me if you have questions etc.... Before bringing it over here, the info that I got, said that bikes built before 1990 didn't need to conform to the new regulations, so if it was a 90’s or newer, then those bikes would have to conform to brand new regs, (but for a 70's model it's a non issue) Also thanks canuknortonut for the eastern beaver link , I will be using that link and e-mailing him myself. Later gaiter

 

[p400]

This P11A seat has me a little baffled about how it is mounted/supported. Not many period photos. Here is a road test May 1968 photo showing the tail of the seat way off the frame on special mounts. If this is a fiberglass seat base like a P11, there must be some intermediate support......as it appears the seat base is flat from front to back.



This may not be correct , but I think it is a used P11A seat bottom that sold on Ebay. I see rubber bumpers at the rear and a tongue at the front, how does this mount?

 

[BillT]

The seat base is the same general shape on a P11 and P11A. The difference is the P11A seat is about 5-1/2 inches longer, so the scoop out for the rear wheel is longer and overlaps the fender by a couple of inches. As I stated earlier, the back of a P11 seat has a pair of inserts in the back on each side that slide on to pins welded to the crossover tube. Only the P11 has the round crossover tube welded across the frame near the shock top plates. The P11A seat has a pair of studs, about 7-1/2" apart at the back bottom, that fit through holes in the P11A crossover flat stock in the rear fender loop (the silver-looking flat thing butting against the aluminum adapter the frame loop slides into in your pic of RJD 45E). These studs are secured with nuts and lock washers. On P11A's, this piece is welded to the rear loop, and the whole thing is painted black. It appears the piece is clamped on in your pic, hence what looks like a bolt near the loop and the silver color (maybe cad plated?). I would assume RJD 45E is a very early P11A, or maybe even a test mule.

Rangers have a flat stock crossover like the P11A, welded to the rear loop, but it only supports the fender. The seat is supported by the top shock bolts via 'L' brackets. On my bike, that flat stock piece was replaced by an earlier owner with a sturdier member once the original vibrated off. That's why mine doesn't have the sharp bends of a stock piece.