SOHC.co.uk Forums > Project Board
CB350F Rusteration
kevski:
I thought the early ones did not have stem seals on the exhaust side, i have not been into mine so unable to verify.
Moorey:
Mine has and I would say its top end has never been opened up before. I have now got a method of getting the collets back in.
Moorey:
--- Quote from: kevski on February 22, 2019, 09:12:20 AM ---I thought the early ones did not have stem seals on the exhaust side, i have not been into mnine so unable to verify.
--- End quote ---
The parts book lists 8 for the F. Unless there is some confusion as the first engine number listed is 1068969.
It does say at the beginning of the book.
If there is a production change to a part, the frame or engine number to which this part become effected will be indicated in the " Serial No " column. However, in the case the part is used from the initial serial number, its applicable serial number is not shown.
I read that as it should have them, But could well be wrong . Hopefully someone more au fait with the Honda parts system will enlighten us.
royhall:
Moorey. This is what I found whilst rebuilding my 350F. There's no real definitive answer on what is correct here, this was the comment a while back:
Some engines (mine included) had stem seals on the exhaust side and some had unsealed guides that are machined to a point to shed the excess oil. According to some on the internet the excessive wear is due to the stem seals on this engine and the lack of oil on the valve stems, and they should have the other type. Many others disagree and say to fit the 400 type with the seal (which as we know should be designed to leak slightly). I even checked the ones on Yamiya's site for the 400 and if you buy the full set they all have seals, if you buy the exhaust guides separately they don't have seals? All the guides on CMS for the 350 are without seals except for the French bikes. This is all a bit weird.I rang CMS with my engine number and they say the non sealed version so that is what I have gone with (even though seals were fitted in my engine). On top of that there are 4 different versions of unsealed guides so I went with the latest version. Just hope it's the right decision as I have fitted them now.
Moorey:
My guides a machined to accept stem seals, so when the new one comes we shall see if it cures it.
I guess you pays your money and make your choice then. ;)
I had read your smokey thread and the one on the US forum and then when I saw this bike was a smoker I just thought "Bollocks." We shall see though.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version