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CB750 tear down.

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Johnny4428:
Rebuilt the rear wheel new bearings, rim, spokes and tyre to put on the road this year. Too much oil leaks etc to run so tear down was the only option.
Tidy up time I think!

Johnny4428:
Made a start on engine this afternoon. One rocker shaft with slotted end inwards??. Centre bolts under rubber pucks not very tight. Any tips on separating head from barrels? Don’t think it will be any advantage taking them off together still got to separate them.

Trigger:
The threads under the cam towers are a weak thread, helicoil while apart  ;)  Make sure that all the tower threaded holes have a bottom to them. Common problem is owners put the wrong bolts in the wrong holes and punch the bottoms out which, cause oil leaks you will chase forever. The black bolts with 9 on the head must go in the middle and the shorter ones to the outside of the towers.
If you have all bolts, nuts and washers out of the head it should just pull off. That's if you have the front and rear M6 bolts out and the special bolts that are in the puck holes x 4 of those.

Johnny4428:
Thanks Trigger. Yes tower bolts were correct. All bolts loosened including front and back. Wonder if someone has had a go at sealing up oil leaks, there was a lot of silicon on the outside of the joint between head and barrels. Problem is with these fragile fins you dare not lever or hit anywhere. I will check all these threads thanks.

Trigger:
If you have the bolts out of the 4 puck holes then, it should lift off. If you have to hit the head, do it with a rubber mallet to the side of the fins front and rear to shock. If it is still stuck then, there is a point on the barrels to leaver the head and barrels off at the same time. Once off you can knock the head off from the bottom of the barrels with a lump of wood  ;)

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