SOHC.co.uk Forums > CB750
The F2 Restoration
F2 Paul 876:
Good buy me to jealous, will look brill on the bike.
Paul
K2-K6:
Oooh that looks good nick pete, and worth a bit of a chase around to find an original.
Good suggestion about the oil Yoshi, I'd go with 2-smoke oil though as that seems to have preserved more pipes than anything over the years and is a bitch to get out of pipes so a good property for this.
I've heard it's the acid by-product from combustion that is carried in the condesation if not warmed up properly that attacks the mild steel inner pipes and rots them. Seems to make sense as the chrome often remains intact as the structure disappears.
Spitfire:
Right that's it, I'm officially dead jealous, they look great, I used to use the same trick on exhaust systems on my bikes back in the olden days, filled them with oil and leave them overnight. As suggested I used 2 stroke oil as well.
Cheers
Den
UK Pete:
Ok here we go again, i got the urge to crack on with the f2 so in the week i assembled the top end of the engine, fitted new rings, ground the valves in ,and put in a new cam tensioner wheel,
When it came to assembling the cam tower i put everything together went to torque up the cam tower bolts , and no surprise 2 of the bolts just kept turning not even getting 5lbs on the torque wrench, this is about the 6th or seventh 6mm bolt to just pull clean out of the aluminium on this engine, either Honda used cheese for aluminium or the prevoius person who dismantled the engine and rebuilt it was an arse and overtightened everthing to the point where it just started to break, anyway off with the cam and towers out with the helicoil kit and reasemble,
With engine now together i decided to put it in the frame, i was going to lift it in and at the last minute, thought i would take the wheels off and lower the frame on to the engine, it turns out this was real easy and only a one man job, although i did manage to chip some paint on the engine and the frame , but on the whole a job well done, i took a few pictures to show my progress, hope fully i will post a bit more on this project as i just want it done as it has been too long ,
Pete
Spitfire:
Absolutely gorgeous, you are doing a fine job, as for the cam towers those bolt holes are notorious for stripping used to happen all the time.
Cheers
Den
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