Author Topic: CB 500 Four (1972?) Full Restoration (Read 140493 times)

MickB · « **Reply #425 on:** November 04, 2014, 10:15:46 PM »

DH there are 2 woodruff keys, one at either end to stop the 2 parts at each end of the shaft from slipping when you turn the throttle. As I recall when these are taken out the rest comes apart. It's 11 months since I pulled them apart and I'm about to start rebuilding the carbs.

Does that help?

calj737 · « **Reply #426 on:** November 05, 2014, 03:33:33 AM »

There seem to be set screws under those bosses as well. When extracting mine, had to drill them out, and yep, there's Woodruff keys as Mick said, plus felts.

Unless you absolutely have to replace that rod, it's not really designed to be pulled apart easily. Harisuluv has mentioned this a few times in various threads. But if you do, be prepared for the bits involved.

Yours like fantastic Mick! I just spun mine in a lathe to clean it all up as the carbs themselves needed so much repair attention and a spa day in the UltraSonic cleaner.

MickB · « **Reply #427 on:** November 05, 2014, 03:41:02 AM »

I can't really recall the shaft as it was so long ago the pulling apart, but I do remember some trick to rival. I took photos but no photo shows any thing out of the ordinary.

The guy did an ace job, it was really badly pitted. I think it came up so well because he was getting it ready to chrome before you advised regarding his kids university fund and I changed it to zinc.

MickB · « **Reply #428 on:** November 05, 2014, 03:50:52 AM »

DH I have another complete shaft set up and I'll look tomorrow for you.

DH · « **Reply #429 on:** November 05, 2014, 07:19:07 AM »

Quote from: calj737 on November 05, 2014, 03:33:33 AM

There seem to be set screws under those bosses as well. When extracting mine, had to drill them out, and yep, there's Woodruff keys as Mick said, plus felts.

Unless you absolutely have to replace that rod, it's not really designed to be pulled apart easily. Harisuluv has mentioned this a few times in various threads. But if you do, be prepared for the bits involved.

Yours like fantastic Mick! I just spun mine in a lathe to clean it all up as the carbs themselves needed so much repair attention and a spa day in the UltraSonic cleaner.

CALJ...
I was figuring it was something along those lines. I got everything loose, but can't slide the shaft out. This makes sense...

MICK..
Thanks for the diagram. I'm thinking too, that the whole assembly is non serviceable, and designed to be replaced as a single unit, as per calj... My spare is in beautiful condition, but the aluminum rack as mentioned, has a hairline crack at one end and the shaft has a tight spot in it when turned 360 degrees. For all i know, it may be bent, but it's gotta come out to examine everything. I don't have a dial indicator to measure runout of the shaft, and I want to see the inside of those holes that the shaft passes thru.

MickB · « **Reply #430 on:** November 05, 2014, 09:42:34 AM »

DH no I don't think it's a single unit, I was able to pull mine apart.
I'll come back to you shortly.
Have you sprayed any PB Blaster?

MickB · « **Reply #431 on:** November 05, 2014, 11:37:52 AM »

DH note the groove that circles the shaft, probably where a grub screw goes in, I think this is the problem you have.

DH · « **Reply #432 on:** November 05, 2014, 05:18:56 PM »

I believe you are correct sir. Thanks

MickB · « **Reply #433 on:** November 05, 2014, 09:50:11 PM »

The joys of getting old and forgetting I put the 2 dowels in the cases months ago.
Lo and behold I split the cases and there they were already there!! za!?:@& what!

MickB · « **Reply #434 on:** November 05, 2014, 09:51:48 PM »

Calj stop laughing.

SOHC4 Cafe Racer Fan · « **Reply #435 on:** November 05, 2014, 11:22:03 PM »

Damn!

MickB · « **Reply #436 on:** November 06, 2014, 12:51:07 AM »

I have accidently slightly bent the top ring on #3, it still turns but is slightly harder to turn than the others which turn freely.
I read the ring should be replaced if it doesn't spin freely.
Do I need a new ring?

My thought is yes.

calj737 · « **Reply #437 on:** November 06, 2014, 03:27:37 AM »

Quote from: MickB on November 05, 2014, 09:51:48 PM

Calj stop laughing.

Give me a minute...

calj737 · « **Reply #438 on:** November 06, 2014, 03:27:56 AM »

Not quite yet.....

calj737 · « **Reply #439 on:** November 06, 2014, 03:28:49 AM »

Darn, Mick, it could

have happened to

calj737 · « **Reply #440 on:** November 06, 2014, 03:31:06 AM »

Sorry about that.

ER, it could have happened to anyone, Mick.

It's good to be ~~old~~, I mean it's good to be thorough! Dang sorry to hear you've spent the time, but it's good to be certain.

My stomach hurts, might have cracked a rib when my spleen spurt out my nose

MickB · « **Reply #441 on:** November 06, 2014, 12:54:33 PM »

Laughing at others misfortune, cracked a rib! I hope you've given yourself a hernia.

calj737 · « **Reply #442 on:** November 06, 2014, 01:33:03 PM »

Can't know for sure yet. Feeling in my lower extremities hasn't returned-

Glad it's all taken care of now, Mick. Now to finish her up and get her fired up!

MickB · « **Reply #443 on:** November 06, 2014, 01:35:26 PM »

Got to wait for new ring!

MickB · « **Reply #444 on:** November 07, 2014, 07:51:48 PM »

Help me please, putting the front end together and I've struck a problem. I thought there'd be no gap (see photo), I have every part, the axle is 160mm across.

Only half of the speedo end is sitting in the fork.