Please also be aware that once welded inevitable distortion will have compromised the alignment of the cups.
In particular the gland faces may become out of square making operation ineffective.
MFO 163 has just completed 1280 miles of very hard riding in the Picos de Europa rally on Millers Oils CM2T goes under the name of Pistoneze. No smoke and no problems. I guess you take your choice
Eddie
Also, make sure you remove the K/Start ratchet by removing the bolt in the centre of the layshaft. Sometimes the ratchet can be quite tight on the square.
Eddie
Hi Graham,
If you take off the round cover on the top of the box, just behind gearbox end the cover. Its held on by a spring clamp. You will see the sliding dog immediately underneath. clicking into second gear the dogs of the sliding boss and the inner spider should line up as closely as possible. If the detent plate on the front of the box is correct and has not come loose then the detent arm should hold it in this position. If the dogs do not line up when you operate the change arm (rotate the dogs to line up first so they can move straight in) then you will need to alter the length of the short connecting rod that joins the footchange cam to the operating arm on the front of the box. This can be a little hit and miss as the two rod ends are usually both RH thread so needing a full turn to line up. If you can get it as close as possible and let the detent ball pull it into line is the best bet.
best of luck
Eddie
It certainly could be a worn sliding dog. I would also check the detent spring pressure and condition of the 9/32 ball. Is the selector correctly aligning the dogs when you change into second. There can be a problem with one of the tangs on the selector shaft breaking away.
The pump drive is eccentric to the body of the reduction gear so you should be able to rotate 90deg to lift the pump up in relation to the centre line of the door.
Just a rumour I am pleased to report. I have just spoken to the gentleman who has been loaned it to ride at Banbury. To which he is much looking forward.
