Hi all,

There is a BMW club member in the UK (Scotland) who want's to change the engine & gearbox that is in his 1998 K100RS (2 valve). The donor bike is also a 1998 K100RS (2 valve).

Is there anyone out there who has done this and can pass on any hints and tips to do the job. I will be sending him both a BWM workshop manual and a Clymer manual.

I have some gearbox guide pins for him, and if needed BMW tool 26 1 660 for swing arm fixed bearing.

He is planning to take the opportunity to lube the clutch and rear drive splines.


I know the manuals will be detailed, however it's always better to hear from those who have had the practical experience, and may have shortcuts.

The reason for the change: The original engine has covered 170,000 miles and has just made some nasty noises (from his description it sounds like clutch/input shaft splines).

Thanks in advance for your help.

Mike

Tip No.1
Tell him to join the forum and post some pics!

The rest is easy 

Actually, my tip for starters is/are A: support the swingarm when the shock is removed - or you risk trapping and damaging the front bellows between swingarm and gearbox. B: Cable tie the clutch release arm to the gearbox when you remove the clutch cable - otherwise the spring inside the clutch release bellows will overextend and probably tear the bellows.

A: It won't damage the boot at the front of the swing arm but the boot may slip off of the transmission.

When I built my K75 Frankenbrick I started with the motor sitting on blocks of wood. I put some additional support under the valve cover as the engines are a bit lopsided when sitting on the oil sump and like to tip over. I laid the wiring harness and relay box on the top of the motor before installing the frame.

That's a good start chaps, thanks.

I will encourage him to join the forum, as I said I would be asking on here for opinions.

O.K. soh wat about the initial strip down - pitfalls and all.

Thanks 

Mike