SOHC.co.uk Forums > CB500/550

Valve stem seals

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OZZYSBIKES:
Apologies as it's probably been covered a hundred times but I want a recommendation for valve stem seals, I have a big bore kit to fit to my K3 550 and I am taking out the valves so need some stem seals, I want decent quality ones so that they are not leaking a few hours later, any advice on which ones to buy and where as I have read that some of the cheapest ones are suspect quality ?

M and P do some at a good price but there's no brand

Thanks in advance

Bryanj:
They usually come in a top set and most are ok. You need a top set to get all the O rings anyway.

OZZYSBIKES:
Ok thanks, I have a top set but was a little bit unsure about the quality of the stem seals, if they're usually ok I'll fit the ones I have,  I need some of those rubber puck seals, I'm guessing they will be genuine Honda from Silvers

(I had read a few negative comments re the stem seals but there could be reasons for that)

Bryanj:
Just check the sealing lip visually for knicks or tears, some cheaper ones dont have clips where they fit over the guide but still seem to work.
I have seen sets both with and without the pontefract cakes, if not supplied then its Honda.
Like i tell everybody read the manual several times about fitting cam cover, i have ssen many bent valves and a few broken guides when not done correctly!!

OZZYSBIKES:
No "Pontefract cakes" so I'll get some from a dealer, probably Silvers if they have them,

I've seen a few disasters with similar, I am very careful when building engines not to damage anything, there's only ever two ways to do something, either right or wrong

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