SOHC.co.uk Forums > CB500/550
CB550k1 US Import - UK registration
Lobo:
Cheers Bryan. You’re likely right; the seals I popped, with the stanchions in place, were pattern if I remember correctly; and one weeping at its perimeter. I cleaned the seatings and reseated them with a sealant. (OEM seals in now) (it took 40-50psi on my foot pump btw!)
Surely though there is a (safety?) consideration upon compressing the forks with only an interference seal? Whilst the oil may not ‘hydraulic’ against the seals there will be a rising air pressure - though I’ve no idea whether the psi would be significant. It does beg the question though as to why Honda bothered providing a circlip? (and washer on the ‘750)
All said, I can’t question your experience versus my thoughts!
Bryanj:
Think of it as all brand spanking new, it might be possible for the seal to move. Newer forks have air pressure in them, usually less than 10psi.
On an asside when i was in the trade i reckon over 50% of leaking seals were from where they had been replaced and the inner of the slider(outside of seal) had been scored by a big screwdriver or sharp lever in which case carefully remover sharp edges and fill the groove with rtv and hope you dont have to remove the seal again.
Used to remove power steering box shaft seals by connecting a power pack hydraulic pump to one unit with a blanck on all others, used to take about 300psi to pump the seal out
juitz:
These are the seals I purchased - no equivalent Honda part number though.
https://www.ebay.co.uk/itm/391988989263?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=7Iy1D4TNQ3u&sssrc=2349624&ssuid=eMi7QkCfTHq&var=&widget_ver=artemis&media=COPY
Oddjob:
So size stated, can you read the size on the top of the seal?
juitz:
So wanted to post first pic of my build progress now that I have made some progress!!
Not sure if I made the right choice with alum front shocks and black rear shocks, but hey, if i dont like it will give me something to do after it's finished!
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It's slow progress as I keep finding bits that need replacing that I haven't ordered, but its coming along.
Next up are getting tyres installed on the wheels and then I'll start the electrics.
I have a question on the lower Mounting bolt for the rear suspension. It's only a M10x32 bolt through the bush? Again, can't find anything in my dismantle pics or the build diagrams that say otherwise?
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Cheers!
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