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CB750F2 .... silk purse from a sows ear.
SumpMagnet:
K2-K6 ...thanks for the info :) I did wonder what the hell that goo could be....and how it got there.
hairygit....good to know I don;t need to take that apart. That's only coming out after it gets drilled....and I hate drilling screws out as you never know the first time whether you will have any meat left on the shank to get the stump out. So far only one screw has needed the DeWalt treatment and that was one I knew fropm the screws around it was plenty long enough.
Presumably that whole assembly can come out in one piece...or do I just leave it in situ when I split the cases?
If I damage one of those 4 big screws I will make sure I fit new ones before I rebuild. Never know when you need to go back in.....
hairygit:
Take it out once the cases are apart, can't clean the casings properly with it left in place, comes out easily
SumpMagnet:
Progress has been a bit slower over the last week or so, due to family stuff....and those inconvenient bits of life that stop you doing what you want to do ...but we still push on.
Made myself a tool to undo the clutch centre nut, which I reckon will do the job. Second attempt...first attempt scuffed the nut...so I might well fit a new one on rebuild. The final tool was basically a 6" section cut from an old Trriumph fork tube. Dad has a good supply of these....all rotten...after many a front end rebuild on bikes he has renovated. They score up and the screw on bushes corrode in place. Replacement is the only cure. He keeps the old ones to make spacers, drifts etc. and to stick yokes on when painting, so I was able to get a piece to bring away. Chopped it into a 4 peg array...which was about 1mm off on the internal diameter and slipped scraping the nut. Mk2 was fitted iwth an internal sleeve epoxied into place to line up right....then drilled through for a tommy-bar to turn it.
That's when I hit problem No2.
The damn thing won't stay put! I made sure it was in gear before I took the shifter mechanism apart, and sure...it is in gear. I just haven't figured out a way to stop the sprocket turning!
I tried a wooden block wedged in, I tried wrapping the chain around..... damn thing doesn't stay put when I put proper pressure on the nut. GAhhhhh.....
I know the time to step back from the problem was at ahnd, as clear thinking was the order of the day, not aided by building frustration, so I found something else to occupy my mind!
The frame is in need of a good clean, and a light respray. The more I stripped it, the more I realised it actually has a lot of good original paint, which I can flat back and recover. Other areas need more work...but I like the idea of keeping as much as I can, and just perking it up a bit. The centre stand had to come off, and that was nice and easy. Just slacken the pinch bolts and drift out the pin. Stopping only to extract the drift I had wedged in ..... and found a better one that didn't get stuck it was soon free along with it's spring and half moon spring bracket. Side stand off next, followed by the seat catch. Now she is ready for proper cleaning and sanding back.
Next stop the seat.
Now....this thing is a horror.....humped semi K&Q thing with crunchy vinyl and buttons down the centre. Yes....buttons. The seat pan looks to be usable, but the cover has been rivetted on, and the buttons have also been rivetted through the foam to the base. There was some rot to the sidestand low side of the base, but it looked pretty solid, so I had ideas of using it for a new seat. I planned on a cafe style seat, long enough to look good with the frame rails uncut ( I don't want to ruin ANY parts originality, to make it easy to revert to stock if I wanted. ) so I thought I could use the front half of the pan, reshape the foam, then get it covered. That way the hinge and locking points from the stock frame can be used with a GRP rear section glassed in and fixed to the rear. That....as they say...was the plan.
The cover needed cutting off, which was done, but I could feel a lot of 'crunchiness' around the edges....
Oh dear.
Half the seat base metal is still glued to the foam buy it's own corrosion. The side sections at hte front are largely gone at both sides, wioth metal so thin the screwdriver 'poke' test failed all along. I emptied out hte contents of the vinyl and foam.....and got this.
Going to stick it on E-Bay as genuine 1970 Honda iron oxide, rare and original. Can be fitted to all 70's honda motorcycles. Came as standard with many models......... £7.50 per bag. Bargain. Woin't be here long at that price. Of course...I will give a discount to SOHC Forum members ;)
Moorey:
Somebody will buy it and restore it. ;D
hairygit:
If you advertised it as Honda iron oxide, you'd get negative feedback coz that seat is obviously NOT Honda, some vile aftermarket thing the yanks seem to love! And the way they have been with DS and others, Honda themselves would probably sue you!
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