FITTED WITH OIL SEALS; 1960-09/1963,
This part includes:
Oil seal 97-1168 and Alloy sleeve 97-1196
This system was used on Triumph till Sept. 1963, after which was external springs.
This information comes from the original drawings from Triumph.
Clutch Locking Plate Triumph/BSA 3-and 4-spring Clutches
single cylinder 1937-1945
Twin cylinder 137-1988
not to be used for single cylinder Triumph and BSA Unit engines
Triumph Piston TR6,T120,T110 Pre Unit +060
with piston rings, circlips and gudgeon pin
71mm +060= 72.5mm
comp. rat.: 7:1
for Alloy Head
if you wish to lower the compression of an iron head engine, these pistons can be used. Giving approx. 6.76:1
Piston Clearance 0.12mm or 45thou
Made in England
Price per pair
Please look at all pictures
Villiers Piston +060 1931-1938 346 c.c. Long Stroke, XIVB. YZ Automatic Lubrication (G. Pin Parallel to Deflector) +60 = 71,5 mm With Piston rings,without Gudgeon Pin and without Circlips used
Timing Side Bush BSA A50/65 /050
This bush is made to be bored from STD to -40 as required or to be used as -50
These bushes should be inline bored
Flansch: 1/8" 3mm
ID: 36,7 mm