Tools You Have Made to Maintain your Norton

seattle##gs said:
I will offer a technique rather than a tool.
Quick way to find center of a round part such as a tube to prevent the drill bit walking. If you have a drill press or mill.
Clamp the tube in the drill press vise. Get as close as possible to center by sight. Then take a thin piece of stock ( I use a loose feeler gauge .030)
under the drill and see if it lays flat or tips one way or the other. Move your vise accordingly. It is possible to be very accurate using this method. The final check is to remove the feeler gauge and see if the drill deflects in any direction. Practice on a scrap piece of tube to get the feel for it.
Click to expand...
We were taught to do this with a 6"Steel rule and sight it so that it is parallel to the table top
 
I subscribe to the KISS method when possible. Rejetting a Norton today and playing hell getting the needle to hit the hole! A booze straw made it much easier. No bent needle jet! I'm sure you all thought of this before. I'm a little slow!

Tools You Have Made to Maintain your NortonTools You Have Made to Maintain your NortonTools You Have Made to Maintain your Norton
 
Tools for installing Amal manifolds:
Yesterday I tried to install some Amals onto the manifolds which I had already bolted to the head. Then I remembered the
impossibility of tightening the inside nuts. I also remembered that this problem had already been solved with my trusty set
of cut off Allen wrenches. Note the hand ground swivel ball on two of them as well as the 1/12th clocking of one of the
shorty Allens.
:Tools You Have Made to Maintain your NortonTools You Have Made to Maintain your NortonTools You Have Made to Maintain your NortonTools You Have Made to Maintain your Norton
 
When installing the head the pushrods USUALLY drop into the pushrod tunnel and locate themselves in the lifters, perhaps 90 % of the time. The other 10% will result in a bent valve and perhaps a broken valve guide. My method is to put a dab of grease on the ball end of the push rod then put the head on. I have two small blocks of wood 1" tall which allows the 3 studs to barely engage with their holes. The blocks go to the rear of the head and support it while I double check if the pushrods have seated in the lifters. The grease makes them stick in the lifter cups and I can feel them trying to draw the lifters up as I move them. Once you are sure the pushrods are seated then remove the blocks and continue on.
Because it is difficult to get my hand in under the head and around the stud I use a screwdriver instead of my right hand and with my left hand on the outside I can move the pushrod up and down. If I feel resistance then I know the pushrod is correct.
Bending a valve is even more aggravating than having a stud pull out.
 
Every time I have put a head on the push rods always drop into position on the lifters but I always find one pushrod will always be misaligned on one rocker arm and need to be put in place with a small screw driver before pulling down the head on the bolts, very important to make sure all 4 push rods are sitting in position on the rocker arms before pulling the head down, I go by the book and hold the pushrods in between my fingers while putting the head in place, but most times with heads I have the motor on the bench on a engine stand.
I always find it's the right inlet rocker/pushrod that needs the screw driver trick to put in position, but it's been so long since I had my head off (15 years ago me thinks).

Ashley
 
Don't count on it. I bent a valve 2 years ago and one a month ago because one didn't seat and many close calls in the past...and I.m looking for it. I turn the radio off and very slowly turn it over feeling for any extra resistance. Hard to tell between spring pressure and valves touching. It takes very little to bend a valve.
 
seattle##gs said:
Don't count on it. I bent a valve 2 years ago and one a month ago because one didn't seat and many close calls in the past...and I.m looking for it. I turn the radio off and very slowly turn it over feeling for any extra resistance. Hard to tell between spring pressure and valves touching. It takes very little to bend a valve.
Click to expand...
Well been working on my Norton and friends Norton's for 48 years and have replaced a few head gaskets and engine rebuilds over them years and never had any problems with the pushrods dropping on the lifters, but of course I do make sure everything is right before a pull down the head and turn the motor over slowly to make sure pushrods are seating right.
 
ashman said:
Well been working on my Norton and friends Norton's for 48 years and have replaced a few head gaskets and engine rebuilds over them years and never had any problems with the pushrods dropping on the lifters, but of course I do make sure everything is right before a pull down the head and turn the motor over slowly to make sure pushrods are seating right.
Click to expand...
Jim Comstock told me that he removes the right intake rocker arm until after seating the head and installs it after the head is on.
 
I have never removed my rockers, still all original, and have never had any problem installing pushrods while they were in place, just got to make sure they are all seating right before pulling the head down.
 
ashman said:
I have never removed my rockers, still all original, and have never had any problem installing pushrods while they were in place, just got to make sure they are all seating right before pulling the head down.
Click to expand...
and that's how I make sure they are seated correctly in the lifters
 
motorson said:
Tools for installing Amal manifolds:
Yesterday I tried to install some Amals onto the manifolds which I had already bolted to the head. Then I remembered the
impossibility of tightening the inside nuts. I also remembered that this problem had already been solved with my trusty set
of cut off Allen wrenches. Note the hand ground swivel ball on two of them as well as the 1/12th clocking of one of the
shorty Allens.
:View attachment 113949View attachment 113950View attachment 113951View attachment 113952
Click to expand...
I have found that the Chapman mini ratchet with the ball end driver bits works great although I still carry my cut down Allen wrenches in my tool bag, https://chapmanmfg.com/products/famous-midget-ratchet-cm-13
 
A Tool cut from the center out of a dead rotor, drilled and tapped one two of the flats so I could use bolts if I didn't need a wrench to turn over the engine.
 

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When I was assembling the CNW estart I needed a way to hold the clutch while tightening the nut. I found that a 3/4" pipe flange had just the right bolt circle, so I machined the flange flat, added some spacers to the back of the flange, opened the hole diameter and brazed on a handle.
 

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I hate paying the price for new Command fuel lines, so I made a fuel line build fixture. I used my stock fuel line as a model and now I can build multiple ones that are identical.
 

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My wife always complains when I ask her to turn the throttle while I strobe my bike, so I built a hand throttle that bolts to my bike lift and lets me control the RPM from the primary side while strobing it. I made a cardboard reference disk, put it on the twist grip, started the bike and calibrated the engine speed. Then I bolt the manual throttle to my lift, attach a piece of paracord to the twist grip, run it through the pulley and tie it off on the handle of my manual throttle & pull the handle until the engine gets to the right RPM. Long winters?
hand throttle.jpg
 
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drp said:
My wife always complains when I ask her to turn the throttle while I strobe my bike, so I built a hand throttle that bolts to my bike lift and lets me control the RPM from the primary side while strobing it. I made a cardboard reference disk, put it on the twist grip, started the bike and calibrated the engine speed. Then I bolt the manual throttle to my lift, attach a piece of paracord to the twist grip, run it through the pulley and tie it off on the handle of my manual throttle & pull the handle until the engine gets to the right RPM. Long winters?View attachment 114018
Click to expand...
Your wife is not the only one that complains!That brought a smile.
Mike
 
motorson said:
Tools for installing Amal manifolds:
Yesterday I tried to install some Amals onto the manifolds which I had already bolted to the head. Then I remembered the
impossibility of tightening the inside nuts. I also remembered that this problem had already been solved with my trusty set
of cut off Allen wrenches. Note the hand ground swivel ball on two of them as well as the 1/12th clocking of one of the
shorty Allens.
:View attachment 113949View attachment 113950View attachment 113951View attachment 113952
Click to expand...
Admittedly I didn't make this, but I purchased a micro ratchet set, and it has been invaluable for all my bikes in tight situations such as the Commando manifolds. If it’s a really tight space, you can remove the hex to 1/4” adapter from the end and then put a loose hex key through the hole and push / pull on it.
20240501_122450.jpg
 
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Okay - here's a tool I haven't made, but will if I have to repair another Mk3 anti-backfire device.
The difficulty is how to apply 50ft.lb to the shaft whilst clamping the gear.
So far I have used a pair of modified (1/2" tool steel welded each side) automatic visa-grips with a piece of 1mm ally sheet to protect the spline. I works (just) but is a PITA.

Next time I would buy the splined thrust washer (see below) and weld it to a 1/2" drive 1" socket. Gives direct, solid connection for the torque wrench.
Cheers

andover-norton.co.uk

Andover Norton - THRUST WASHER - 06.5652

THRUST WASHER
andover-norton.co.uk
 

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