how did john kipping do it ?

[david lewis]

hi all, i have a gearbox modified by john kipping to 4 syncro in 1996- i need to know how did he modify the boxes so i can order new parts,i think i need new bearings as the layshaft is suspect (rattles badly )

cheers

[Pete Lewis]

All the parts will be common 3 rail 4 sychro

 

To upgrade a 3 sync you would need to change the layshaft cluster the mainshaft and the 1/2 hub

 

the layshaft spindle is common

 

both can suffer mainshaft spigot bearing failure

 

the synchro rings are common across all gears all 3 or 4 sync

 

The selector forks would have changed

 

just look any 4 syncro 3 rail box parts diagrams and youre about there

 

If you need any gears you must check the ratios are same

[JohnD]

You have a chance to ask him - he's visiting the UK this year, and is looking to take part in the RBRR! See the CT message board.

John

[Casper]

Back at that time Mike Papworth was his top teeth and gears man.  He will no doubt know.

 

C. 

[david lewis]

thanks guys

[Pete Lewis]

Dave I did a examination and tutorial for Haggis a month ago so if you want a trip to sunny luton

we can sort your box out if you like

 

Pete

[heraldcoupe]

There was a special gearbox which I understand was unique to the South African market, a 4-synchro version of the regular 3-rail, 3-synchro box. Not to be confused with the Spitfire MkIV gearbox which shared little with the 3-synchro type.

 

John Kipping acquired original spares stock for these gearboxes, which allowed him to produce 4-synchro versions on exchange for 3-synchro boxes.

 

 

Cheers,

Bill.