Tappet Blocks

I am rebuilding a T140E
Am i correct in putting the white O ring direct onto the inlet tappet block and the exhaust block the white O ring sits into the groove.
So you have the block plus white ring and an O ring in the push rod tube.
Any pictures would also be great.
Many thanks

 

Hi Rocker thanks for the info a great help. What do you mea

Hi Rocker what do you mean by band on the inlet tube. Sorry if I am being a bit vague but this bike was in bits. In the manual it shows a metal band on the inlet but do not have one on this engine. Maybe last owner forgot it. On the inlet the white gasket sat onto the tappet block and the tube over the top of gasket the exhaust white gasket sits into a groove and tube sitting on top of the gasket

 

Now totally confused looking at Rockers drawing it looks like band only on the inlet block looked at my mates T140 and only on the inlet, Tried to order one and told need two.But it would appear that the exhaust white gasket sits inside a groove and the tube also goes into the groove so what is correct.

 

Cheers Rocker. I have ordered two rings will let you know how l get on. Let me have your email and I'll send you some photos

 

thanks everyone for your help will let you know how it goes