Author Topic: Help! What's caused this?  (Read 2728 times)

Offline Nurse Julie

  • 1973 CB750 UK K2.1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1
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Re: Help! What's caused this?
« Reply #60 on: May 17, 2022, 12:39:54 PM »
Well done, onwards and upwards.
Im a Nurse, trust me, this won't hurt.....much !!!

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline Bristolbadger

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Re: Help! What's caused this?
« Reply #61 on: May 17, 2022, 05:53:20 PM »
Nice work to get going again.

The oil is not that much (in quantity terms) demanded around the camshaft. Most importantly is always to be there, present and reliable to keep it from damaging itself.

It's why they will run for a few miles after rebuilding originally that the assembly oil is sufficient until it goes dry that shows this. So as long as the supply is constant it won't show much in the way of total amount flying around in there.

They control the feed volume with those two restrictions and the leak down back to sump by the little pools created by casting to dip the cam lobes into, along with the drain holes going back down through the head.

Just keep checking the oil is there for each run initially to give you confidence that it's always there and that should be ok at that.
Yeah it's a nice feeling to have her running again. Largely thanks to Roy for parts and Laverdaroo for the space and letting me doss in his workshop to get her fixed up! Ace guys

Nice one for that info, I understand it better now. So long as the little cam tower pools are filled and it's all nice and oily we should be good eh. I'm obviously a bit para now so will be whipping those caps off regularly too





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Offline Bristolbadger

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Re: Help! What's caused this?
« Reply #62 on: May 17, 2022, 05:55:08 PM »
Well done, onwards and upwards.
Well, usually sideways (but upright)

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Offline Laverdaroo

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Re: Help! What's caused this?
« Reply #63 on: May 17, 2022, 06:29:37 PM »
And the last two times he came  he brought no biccies!!!

Bloody liberty!

We had a good hoot tbh, shame to see you go bud apart from the space. Any fellow tea drinker, biscuit munching blue’s lover is always welcome. After I get back from the states we’ll have to go for a scootch and then get down the river for a bit of maggot drowning……


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Mornings are the invention of the devil!
1977 CB550F (new money pit!!)
2002 VFR800 VTEC
1977 CB400F (current money pit!)
1998 Ducati 748\853 conversion
1980 ish CB750KZ in a billion bits (need to get rid!!)

Offline Bristolbadger

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Re: Help! What's caused this?
« Reply #64 on: May 17, 2022, 07:05:25 PM »
And the last two times he came  he brought no biccies!!!

Bloody liberty!

We had a good hoot tbh, shame to see you go bud apart from the space. Any fellow tea drinker, biscuit munching blue’s lover is always welcome. After I get back from the states we’ll have to go for a scootch and then get down the river for a bit of maggot drowning……


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Chomp...chomp...chomp!! I'm sure TJW would approve of the beers as the biccy sub lol

Yeah mate well up for some fish pestering and a ride or two. Have fun in the States, I'm well jel

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Offline Sesman

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Re: Help! What's caused this?
« Reply #65 on: May 17, 2022, 07:29:27 PM »
Get a room you two.🥹

Offline Laverdaroo

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Re: Help! What's caused this?
« Reply #66 on: May 18, 2022, 08:30:27 AM »
Mornings are the invention of the devil!
1977 CB550F (new money pit!!)
2002 VFR800 VTEC
1977 CB400F (current money pit!)
1998 Ducati 748\853 conversion
1980 ish CB750KZ in a billion bits (need to get rid!!)

Offline Bristolbadger

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Re: Help! What's caused this?
« Reply #67 on: June 07, 2022, 08:35:25 PM »
Alright guys,  can anyone be of any help with this please, otherwise thinking of shrinkwrapping the split ones

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