triumph T140V Questions
 

Hello. How do I check the crankcase oil on my 76 T140V or do I just maintain a certain level in the frame?
How do I check the level of the gearbox oil? I cannot even see oil in the gearbox. Where should the oil level be in the gearbox? Thanks.:mchappy:

Dino,
you really should be checking a proper Vintage Triumph forum

Hi The Silver Jubilee model was 1977, from memory I think Mollydog is correct, and under the gearbox there is a small bolt within a bolt for checking the g/box level, make sure the bike is level or on its centre stand. There is a 2nd bolt in the gearbox underside DO NOT REMOVE as this is the hydraulic plunger that locates in the Gearbox quadrant that selects gears and removing this one by mistake can lead to 'gear loss', between the crankcase and outer case cover(left hand side) there are about 3 small holes that allow a small amount of oil through to keep the primary side lubricated. I am at work at present so dont have my old Bonnie manual to hand. If you get into any trouble don't hesitate to get back and post.
As said, this is stretching my memory back 29 years!:eek3:

oil tank
 

If the oil level is right in the tank the sump will look after itself, the same goes for the primary chain case which is self levelling from the sump.
The gearbox drain plug has another bolt in the middle of it which when removed should drip a little oil if the level is correct, when changing the gear oil a 500cc bottle should be just about the right amount for refill.