Big 4 Valve Lifter Spindle
I am refurbishing a badly worn valve lifter spindle from a military Big 4 c. 1940.
A technical forum for all single cylinder Nortons
I am refurbishing a badly worn valve lifter spindle from a military Big 4 c. 1940.
Anyone have any experience with treating one of these to at least arrest deterioration and perhaps regain a bit of flexibility?
Hello,
I have a rigid frame that has been converted to a plunger.
I would like to have the rigid rear end back.
All the notes I've read tell us that the frame number is on left face of upper front downtube headstock lug.
This bike has been sold or tried to be sold a few times. Apparently it is a non matching numbers bike.
Gents,
ate these two holes(pointed to) for knocking out the bearing race? I do not want to stick a double punch in there and find out it's not for knocking out the race.
Is there a min/max diameter on the shafts (drive/timing bearing placements) or is it just a nice fit with out any slop when the bearings go on? Hope this helps makes sense?
Thanks.
Do these cams look as if they have been reworked? Numbers are 11588 and 11587 which I think are Manx cams that may have been fitted as standard by 1953.
Cheers
Paul
Hello,
I have a 1955 Model 19 which has been in the family for over 50 years. I am finally getting around to rebuilding it and would be grateful for some advice on the following if anyone could help please:
Where can I get the clutch removal tool for the 16 h. I bought one from eBay but it is the wrong thread. I'm struggling to get the clutch to release