CBR600F; sump + clutch cover gasket or sealant?

[Noxious89123]

So the sump might be coming off at some point so I can (try to) change the selector forks, selector drum and a few other accesible gearbox parts to see if I can sort my 3rd gear problem without having to drop and split the end + change gears.

I can't find any mention of a gasket for the sump? Haynes doesn't mention it, and the honda service manual PDF I have isn't crystal clear either.

Does it sound reasonable that it might just be a smear of sealant instead of a gasket? It doesn't seem to want a gasket for the clutch cover either (I know the generator cover has one).

Oh, and what sealant should I be using and how much? A nice bead all round, or just a smeared coating with a gloved finger?

Why does it only require that small marked area being covered in sealant on the crankcases, but the cover being coated all round?
Picture from the service manual;
https://img571.imageshack.us/img571/4114/clutchcover.png
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'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi

[temeluchus]

Loctite "Flange sealant" would be what you are after.

As to why they want the extra blobs? no idea.
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Some shite cruiser. Now with guns and FREEDOM!

[Noxious89123]

Mmm, flange...

Nice post! It makes it come up in the ebay ad at the bottom of the thread Would any other black oil resistant sealant do, like Hondabond HT (which is just ThreeBond 1207b) or Loctite 5910?

To be honest my main worry was whether or not it should have a gasket. From what I've found it should be a totally flat smooth joint, so no gasket needed. Sound about right?
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'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi

[dextersaurus]

I put a gasket on mine when i did the sump.

Corn flakes packet FTW

[temeluchus]

loctite 5922 is the cookie.
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Some shite cruiser. Now with guns and FREEDOM!

[Noxious89123]

Righto, will order some before I have a bash at it.

Another related question; What sort of sealant would you use on the semi-circular cutouts of the valve cover seal? Same stuff, as it needs to be oil and heat resistant? Or will it mess up the rubber?

The stuff that's there at the moment looks clear/yellowish... But then it does leak!
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'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi

[orac]

it would normallt have a gasket, however some sealant will be fine, i normally spread mine with my finger.

as for the "blobs", that would be where the 2 crank case halfs join, the gasket wont stop leaking from the three joins, just 2, the sealant stop it seaping outta there
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Current rides - 2016 Triumph Street Triple Rx, 1994 Suzuki Bandit 400 VM, TGB 204 Classic 125cc
"with nothing left to lose, there is everything to gain. It's not the size of the dog in the fight, it's the size of the fight in the dog"

[Vincent]

Blue Hylomar is a pretty good all round sealent.
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Space Is Deep

[temeluchus]

[Serendipity]

The original gasket is probably part of Gasket Kit B: 06112-MBW-600

About $30 anywhere in the world…

…except that you live in the UK so that’ll be about £50 please.

When I replaced the sump pan on my older CBR600 a few years ago I was able to get the gasket on its own from a dealer and it wasn’t too expensive.

Also, are you sure the sump needs to come off to get to the gearbox? Sounds excessive somehow.
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2016 CBF1000F - Commuter heaven | 1994 CBR600FR - Awaiting defibrillation

[Noxious89123]