Author Topic: Engine Strip - I'm nervous  (Read 1315 times)

Offline Trigger

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Re: Engine Strip - I'm nervous
« Reply #15 on: January 04, 2020, 05:10:29 PM »
Those crank case shells are good and can be reused again  ;) ;)

Offline waffey

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Re: Engine Strip - I'm nervous
« Reply #16 on: January 04, 2020, 07:00:21 PM »
Those crank case shells are good and can be reused again  ;) ;)

Thanks Trigger
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Offline waffey

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Re: Engine Strip - I'm nervous
« Reply #17 on: January 04, 2020, 07:01:20 PM »
here is the sump pan that's been repaired
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Offline Bryanj

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Re: Engine Strip - I'm nervous
« Reply #18 on: January 04, 2020, 07:13:23 PM »
Welding looks reasonable when you consider the metal and how oily it was. Try putting the plug in WITH A NEW SOFT WASHER fill the inside with parrafin and see if it leaks, clean it first of course.

Offline Bryanj

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Re: Engine Strip - I'm nervous
« Reply #19 on: January 04, 2020, 07:16:24 PM »
I agree with trigger about the shells just make sure you know the exact position they come from as they can not be identified if you dont, as i believe Trigger said earlier

Offline AndyD

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Re: Engine Strip - I'm nervous
« Reply #20 on: January 05, 2020, 08:52:54 AM »
Guys,
Bit off-topic but seems that lots of the 400's have broken piston rings (mine included but just on one piston) - is there something 'different' about the engine design that causes this as I haven't come across it on other makes / models?

Cheers,
Andy

Offline Trigger

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Re: Engine Strip - I'm nervous
« Reply #21 on: January 05, 2020, 09:22:55 AM »
Guys,
Bit off-topic but seems that lots of the 400's have broken piston rings (mine included but just on one piston) - is there something 'different' about the engine design that causes this as I haven't come across it on other makes / models?

Cheers,
Andy


I find broken rings in a lot of old engines. If the engine has been sitting about for years, the rings will stick and when someone attempts to start it, the stress will break the ring as it starts to free off  ;)
« Last Edit: January 05, 2020, 09:27:02 AM by Trigger »

Offline AndyD

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Re: Engine Strip - I'm nervous
« Reply #22 on: January 05, 2020, 10:56:33 AM »
Thanks Trigger

Offline Bryanj

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Re: Engine Strip - I'm nervous
« Reply #23 on: January 05, 2020, 11:36:22 PM »
I know back in the 70's did a lot of 175 twin and 250K4 with broken rings. Chased most of them down to being thrashed from cold

Offline waffey

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Re: Engine Strip - I'm nervous
« Reply #24 on: January 07, 2020, 07:04:21 PM »
Hi

has anyone bought these bearings (not from Mr Honda himself) but from a normal bearing supplier?

If so, can you tell me the size or the bearing number.

Thanks
Bikes:
Suzuki Address 110 Scooter
Suzuki TL1000s
BMW R1200GS LC
Honda CB400 F2 1977 (restoration started)

Offline Bryanj

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Re: Engine Strip - I'm nervous
« Reply #25 on: January 07, 2020, 07:09:47 PM »
Dont think you can, if anybody knows for certain Trigger will


Offline Deano400

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Re: Engine Strip - I'm nervous
« Reply #27 on: January 07, 2020, 10:20:28 PM »
Had to get one myself.

Offline Trigger

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Re: Engine Strip - I'm nervous
« Reply #28 on: January 07, 2020, 10:23:24 PM »
Hi

has anyone bought these bearings (not from Mr Honda himself) but from a normal bearing supplier?

If so, can you tell me the size or the bearing number.

Thanks

What is wrong with the old bearing  ? If that bearing has gone then, the shaft is damaged  ;) You can get the bearing cage and pins from any bearing supplier but, the housing is Honda only .
« Last Edit: January 07, 2020, 10:26:50 PM by Trigger »

Offline Deano400

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Re: Engine Strip - I'm nervous
« Reply #29 on: January 07, 2020, 10:31:43 PM »
Believe it not Graham, even though mine had been installed wrong at the factory and the shell was split, it ran as smooth as it should and the shaft was perfect. It had done over 45,000 miles on that bearing.

 

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