head

[HarrisoN*]

ive got a atc70 head,i believe it to be the same as the big valve c70 head as c90 stem seals dont fit

need stem seal and valves lapping,all there just needs putting together.willing to sell or swap for another head because i dont know where to get the stem seals from

[d1noh]

try any honda shop, there were two types of valve seals used in c90 type heads

Dino

[Boo]

Seals should be same as C50, C70, 12v C90. (6v C90 is totally different engine)

[HarrisoN*]

i brought these:http://shop.ebay.co.uk/i.html?_from=R40 ... Categories

and they seemed to small then when someone told me the C70 had bigger valves i assumed i need bigger seals?

[Diesel Dave]

Usually you get both types in the full gasket sets, the tiny ones that fit inside the steel top hats and also the earlier clip on plastic ones.

If there is a groove in the valve guide it's for the clip on type.

I will buy the head off you though, pm me through the board

[HarrisoN*]

this one had a top hat style,one of which is mullered

would you swap it with cash your way for another head

[Boo]

and they seemed to small then when someone told me the C70 had bigger valves i assumed i need bigger seals?

It's the valve heads that are bigger (to suit the bigger ports in the head) .
Stems are the same diameter on all valve sizes (apart from 6v 90)

[HarrisoN*]

just dug out a gasket set i brought last year and its got two what look to be stem seals,one is larger than the other so i assume the exhaust is bigger than inlet hence why i couldnt get one on before?

[HarrisoN*]

nope scrap that CMNSL says there both the same

im looking for,part numbers:

14730028013 - stem seals

14731028000 - valve caps.

any forum sponsors stock these or anyone no who sells them online?

many thanks.

[HarrisoN*]

david silver spares want £12,cant grumble at that