Topic: Fitting CB500 engine in to frame

[jaytee-nz]

What's the best method to fit a CB500 engine in to the frame ?
If I fit the crankcases less the cylinders, head etc in to the frame first (being easier to man handle) does that make it awkward to get the cylinders, head etc on later, or is it best to fit the complete engine (less sump) and avoid that hassle ?

[Scott S]

 You can assemble the top end in the frame.
 Also, search "frame over engine method".

[jaytee-nz]

Thanks Scott - that's the answer I was hoping for.

[dave500]

I just leave the sump and pick up off,oil filter and breather cover for clearance and the starter and alternator for weight and just lift em in from the right hand side,you can drape heavy old towel in the frame rails if you don't wanna scratch it,i think its easier than laying the bike over on the 500/550s?

[Scott S]

 If the bike is already assembled, Dave's way is how I do it (except with painters tape on the frame). It helps to have a second set of hands.
 If the bike is disassembled, the frame over engine method is the way to go.

[dave500]

yeah I wouldn't strip wheels etc just to fit an engine on these bikes(500/550)the 750 engine is a big arse mother and single handed the lay frame down over engine is the only way I think?the 500/550 engine weighs about 65 kilos from memory I put one on my wifes scales once(now im in for trouble?)its the awkward angle you need to wrangle it in that makes it seem heavier,just heave it in it aint hard,#$%* im near 60 and do it.

[Scott S]

 The exhaust studs always get hung up on the downtubes, too. If you back them out, it's a lot easier.

[RAFster122s]

The exhaust studs always get hung up on the downtubes, too. If you back them out, it's a lot easier.

Unless you break one trying to remove it...then thigs get more complicated. A wood block on your jack with it leveled with the frame can serve as a surface to set the motor on as you lift it into place across the frame rails.

[Scott S]

 I like the removable side rail on the 650. Solves everything!

[jaytee-nz]

Thanks for the suggestions everyone (Dave - I am 60 so anything that saves my buggered back is good !).
When I restored my CB750 I lifted the frame over the engine so I know the weight of those engines.
This bike will be stripped so either method will work.
Cheers - JT