SOHC.co.uk Forums > CB500/550
550 F2 started!
Oddjob:
I’m replacing mine with stainless steel studs Roo, the trouble with using mild steel in that location is the heat burns off the zinc plating, they go rusty as a result. Corrosion sets in, especially in the part covered by the exhaust flange, the threads left exposed by the nut rust for fun as well, you go to remove them a few years later and the nut binds on the rusty thread, you use for force and it refuses to move but the force is now transferred to the part left in the head, that also doesn’t want to move as it’s rusted in place, this means the centre of the stud starts to twist, as it’s already weakened by the rust it breaks off, if you’re lucky it leaves enough for you to grip, if you’re unlucky it snaps flush with the head.
Use stainless and pair those with deep domed nuts like the ones on your vfr750. Just bought 8 6mm deep flanged domed nuts for when I do mine.
Laverdaroo:
I think I will bud, can’t be doing all this bloody cleaning and polishing for the sodding thing to go rusty
Have you a supplier sorted out yet for them? Saves me looking and all that
I have news te starter clutch but just got in and shagged out so off for a Kip, I’ll catch yer tmrw
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Sesman:
C’mon, Roo. We are waiting for starter news…is it fooked?
Oddjob:
I bought these Roo, exhaust and inlet.
https://www.ebay.co.uk/itm/254206786071?hash=item3b2fe7ba17:g:ORgAAOSw9rthReyM&amdata=enc%3AAQAHAAAA8NuvCEsH9U5nDnF8VxjEQDvfQibV5IT43%2FuFKvA5JY5aBG0XdkQHfcpKA8v5TlDDjwrqWxxIAoznKuA8EDVn%2Fa7wkcEyc2cs4yTuxXNMzMitQQmEeKfzl1x%2FZnhZe2QHiP7mBs1JR7ZYO4g9ua%2FOMbQ8lI7NOB1YPwo4tnEVJqUFlVXc1%2F7tDIWUXj%2BFdBKQc%2Bj9ABRxWALVDMaOV8jJdXL80HZUDFrDza4RP95tsv%2BMly%2FNm01kFmLkqvy%2BsNM%2BwZOHKIDWz%2BYSCWJtLciQQ21fiqlN4hDUbC053UHEH%2FGphKcm7W%2Fanub5XDkylMN%2Bvg%3D%3D%7Ctkp%3ABk9SR8jdhc3gYQ
You may have to ask Trev about the inlet ones if you're interested, he does do them though.
Nuts from here.
https://www.ebay.co.uk/itm/234896491875
I don't intend to use a flat or spring washer under them, the modern bikes don't use them and they don't seem to lose them so I'll go that way as well. Unless the stud is too long for the nut in which case I'll bung a spring washer underneath.
McCabe-Thiele (Ted):
Removing exhaust studs from the cylinder head - that is something I would avoid if the steel studs are okay - call me chicken but it's a recipe for snapped studs IMHO.
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