ES2 exhaust lifter

Thanks Dan. I did a sketch of how I figured it must work and came to the same view. "Lifter" is a misnomer and that's what was throwong me. The shaft wit the flat on it actually pushes the rocker arm down and opens the valve. Perhaps an "exhuast dumper" would be a better description. Thanks for your help. I'll have another crack at it tomorrow.

Regards

George

Previously barry_carson wrote:

Dan is right the flat to the valve. mind you looking in my manual it shows the flat on the valve lifter facing upwards. Baz

Thanks Baz - that's what was confusing me also. See my reply to Dan.

Cheers

George

Previously barry_carson wrote:

Dan is right the flat to the valve rocker arm. mind you looking in my manual it shows the flat on the valve lifter facing upwards. probably for illustration Baz

Hi guys - just to tidy ths thread up, I tightened up the tappet on the exhaust to release the lifter shaft (it would not pull out otherwise) , withdrew the shaft (eventualy!), marked the outside of the shaft with Tippex on the side with the flat, put it all back together then spent about an hour getting the micrometer adjustmen right to open the valve. It either didn't move at al or stayed open. I think the rebuilder fitted a cable that was not quite long enough so it had a bit of a tight bend. Bike now sounds absolutely great. Roll on some dry weather! Thanks for all your inputs.

George

Previously richard_payne wrote:

On side-valves, they really were 'lifters' but when they turned the valves upside down on these new-fangled OHV things, they became 'pushers' although of course they do cause the valve to lift off the seat which is the most important thing.

Thanks Richard. That's the view I came to as I sat there pondering. Anyway - all sorted now! It's a close adjustiment bewteen working and not working.

George

Previously Paul Knapp wrote:

Hi George, just as a foot note, no need to tighten the tappet, next time, roll the motor over and the exhaust valve rocker armwill drop down giving plenty of clearance to extract the lifter shaft.

Paul.

Thanks Paul.

I did actually turn the engine on the kickstart (with the plug out) to get the exhaust valve to open but it did not give enough clearance to withdraw the lifter spindle, hence the over tightenng routine.

Cheers

George