8 replies to this topic

[babsbrown]

Good evening guys,

I've traulled the forum and Haynes manual with no definite answer.

I'm putting my valves in the cylinder head and I'm unsure of the order in which things go.

Am I right in thinking it would go

Metal oil seal, spring, top hat, then collets? Ie

2 then 3, the 1?

I also have the larger rubber oil seals. I take it these push on top of the valve guide and fit in the grooves?

Could I use these as well as the metal ones?

Thank you, babs

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Edited by babsbrown, 29 January 2025 - 06:23 PM.

[nicklouse]

What is 2?
 

I would fit correct stem seal. Then spring-cap compress and collets.

https://www.minispar...d-on-mpi-models

[timmy850]

The manual shows the “shroud for valve guide” as being up the other way. They had no stem seals on the valve guides

Edited by timmy850, 29 January 2025 - 08:19 PM.

[babsbrown]

Ah excellent thanks gents. I didn't see that in the Haynes, perhaps mines too modern.

In your opinions which is the better setup to go for? I have both the modern seals and the older o ring type rubbers.

[timmy850]

Just use the modern ones if they suit your valve guides. Ditch the old metal shrouds

[Shooter63]

No shrouds, Viton stem seals would be best, if you fit the shrouds they tend to mangle the seals. I've never been able to work out how the O ring idea is supposed to work.

Shooter

[Turbo Phil]

The o rings are useless. As suggested above ditch the shrouds and use the latest MPI spec (brown) viton stem seals.

Phil.

[babsbrown]

Thanks gents, much appreciate your help as always, it's really reassuring, especially when doing this for the first time.

I got all the springs fitted today with the later style valve seals on the inlet valves.

Cheers,

[babsbrown]

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