Author Topic: CB400 4 Clutch Basket  (Read 718 times)

Offline Eddie Kirby

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CB400 4 Clutch Basket
« on: October 21, 2023, 02:08:15 PM »
G,day guys. I have recently rebuilt the motor on my 1975 CB400 4. Start up!!! loud knocking noise from clutch.
Remove and stripped, clutch basket/gear has slap and rattle. seems to have possible cushion wear between the gear and basket.
Is this normal?? Can these dismantled, new cushion rubbers inserted and rivets replaced?


Offline Matt_Harrington

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Re: CB400 4 Clutch Basket
« Reply #1 on: October 21, 2023, 02:13:33 PM »
This guy was selling replacement clutch rubber baskets but not sure if he is still doing them:
https://www.ebay.co.uk/itm/155791957037

I think there is a youtube clip on how it's done...
Matt
___________________________________
CB400F 1976 -  Almost finished
CB400F 1977 - On the road!
Moto Guzzi T4 - 1981 - My tourer (plus a loft full of spares)
Moto Guzzi Le Mans 2 - 1981
Triumph 3T - 1947 (somewhat dismantled!)
CD175 - To be restored

Offline ozzybud

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Re: CB400 4 Clutch Basket
« Reply #2 on: February 06, 2024, 05:19:49 PM »
I just received my Clutch basket repair kit. Has anyone else done this repair?  any tips or thought would be appreciated. I got the rivets drilled out so far. The Rubbers are a nice tight fit and made from Viton Rubber. Looking forward to that rattle going away.
1976 Z50 YELLOW
1970 CT70 BLUE
1971 CT70H ORANGE
1972 CT70H GREEN
1973 CL200 BLUE
1975 CB360T RED
1975 CB400F BLUE
1975 CB550 ORANGE
1976 CB750F RED

Offline ozzybud

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Re: CB400 4 Clutch Basket
« Reply #3 on: February 07, 2024, 12:42:34 AM »
Got It done!  It came out great. The hardest part was getting the little buggers over the post and in the hole. I had to give them a bath in boiling water and then lots of oil. Super clean inside this engine with 20k miles. Someone was good on changing the oil regularly!
1976 Z50 YELLOW
1970 CT70 BLUE
1971 CT70H ORANGE
1972 CT70H GREEN
1973 CL200 BLUE
1975 CB360T RED
1975 CB400F BLUE
1975 CB550 ORANGE
1976 CB750F RED

Offline Athame57

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Re: CB400 4 Clutch Basket
« Reply #4 on: February 15, 2024, 01:31:44 PM »
What is in this repair kit and from where to get it?
I brake for animals!
1978 CB400F2

Offline Johnny4428

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Re: CB400 4 Clutch Basket
« Reply #5 on: February 15, 2024, 04:25:27 PM »
What is in this repair kit and from where to get it?
PM to Oddjob maybe?
1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1. Running resto,
1978 Honda CB550K3.
1999 ST1100 Pan European 50th Anniversary.
1975,1980,1984,1986 Honda C90’s
1973 Honda CB750K3

Offline Johnny4428

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1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1. Running resto,
1978 Honda CB550K3.
1999 ST1100 Pan European 50th Anniversary.
1975,1980,1984,1986 Honda C90’s
1973 Honda CB750K3

Offline Laverda Dave

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Re: CB400 4 Clutch Basket
« Reply #7 on: February 15, 2024, 10:56:46 PM »
Try here.

https://www.ebay.co.uk/itm/156055093678?itmmeta=01HPQ3Y8P8Z006A2HTR8AKA37A&hash=item24559bc1ae:g:RAcAAOSwos9loeYa

Yep, that's Max who makes them. He also makes the carb spindles from stainless for the 400’s and are a lovely piece of kit👍
1976 Honda 400/4
1977 Rickman Honda CR750
1999 Honda VFR 800FX
1955 750 Dresda Triton
1978 Moto Morini 350 Sport
1978 Honda CB400/4 'Rat' bike
1982 Laverda 120 Jota

Offline Athame57

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Re: CB400 4 Clutch Basket
« Reply #8 on: February 16, 2024, 12:00:14 AM »
Try here.

https://www.ebay.co.uk/itm/156055093678?itmmeta=01HPQ3Y8P8Z006A2HTR8AKA37A&hash=item24559bc1ae:g:RAcAAOSwos9loeYa

Yep, that's Max who makes them. He also makes the carb spindles from stainless for the 400’s and are a lovely piece of kit👍
Thanks guys!  ;D
I brake for animals!
1978 CB400F2

Offline McCabe-Thiele (Ted)

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Re: CB400 4 Clutch Basket
« Reply #9 on: February 16, 2024, 01:29:56 AM »
On this subject although I replaced the primary drive & rear hub rubbers on my 400 I did not replace these clutch basket ones .

Aside from wear you might find when dismantling the clutch basket  is there a symtom that might appear indicating that they need replacing?
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline ozzybud

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Re: CB400 4 Clutch Basket
« Reply #10 on: February 16, 2024, 03:16:18 AM »
When the bike is running. It's a very loud clanking coming from the clutch area. Pull the dipstick and the decibel level goes way up! The noise does not go away by pulling the clutch in. It does go away at speed due to centrifugal force or the like. So it's just annoying at idle.You won't see any wear on the clutch basket assembly. There will be slop between the gear and the basket itself. The rubbers are fully encased between the riveted plate and the rear of the gear. So the cracked and brittle rubbers can not get into the crankcase.
« Last Edit: February 16, 2024, 06:51:41 AM by ozzybud »
1976 Z50 YELLOW
1970 CT70 BLUE
1971 CT70H ORANGE
1972 CT70H GREEN
1973 CL200 BLUE
1975 CB360T RED
1975 CB400F BLUE
1975 CB550 ORANGE
1976 CB750F RED

Offline McCabe-Thiele (Ted)

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Re: CB400 4 Clutch Basket
« Reply #11 on: February 16, 2024, 10:36:48 AM »
Thankfully I am not aware of any clutch noises atm

Did you find the work in the listing such as countersigning the plate easy?
« Last Edit: February 16, 2024, 10:40:46 AM by McCabe-Thiele (Ted) »
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline ozzybud

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Re: CB400 4 Clutch Basket
« Reply #12 on: February 16, 2024, 03:33:56 PM »
I bought the kit that came with a new plate that was already  Countersunk. I had to slightly countersink the aluminum mating surface for relief . The heads did not or were not intended to go down totally flush. They stuck up about  0.5 mm. A bonus was the existing holes in the basket were the perfect size to recieve a 5 mm tap.
« Last Edit: February 16, 2024, 03:36:06 PM by ozzybud »
1976 Z50 YELLOW
1970 CT70 BLUE
1971 CT70H ORANGE
1972 CT70H GREEN
1973 CL200 BLUE
1975 CB360T RED
1975 CB400F BLUE
1975 CB550 ORANGE
1976 CB750F RED

Offline Laverda Dave

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Re: CB400 4 Clutch Basket
« Reply #13 on: February 17, 2024, 11:27:38 AM »
Max supplied me with the csk screws for my clutch kit Ted. He also advised me to use some green loctite on the threads in addition to staking them as a precaution.
1976 Honda 400/4
1977 Rickman Honda CR750
1999 Honda VFR 800FX
1955 750 Dresda Triton
1978 Moto Morini 350 Sport
1978 Honda CB400/4 'Rat' bike
1982 Laverda 120 Jota

Offline McCabe-Thiele (Ted)

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Re: CB400 4 Clutch Basket
« Reply #14 on: February 17, 2024, 12:00:10 PM »
The staking sounds a good idea Dave - especially on a small screw.
I guess one good punch mark will suffice with a good sharp punch.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
http://www.sohc.co.uk/index.php/topic,23291.0.html

 

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