Some parts too look at (Valvetrain)

[Canyonero]

Yep, I got two boxes. If I recall correctly, ForcedFirebird posted that Felpro #.

[tejohnson]

Hrm, I wondered if he figured you had 2000+ heads.

The only thing that really concerns me is if they are used for the 2.2l, the 2.2l has a smaller valve stem (less than 7mm I think). So the seal has a tight grip on the valve, and not so tight grip on the guide.

With the 2000+ having a larger guide, it is less of an issue apparently. Make sense?

[tejohnson]

The other thing to keep in mind with my setup: 15psi of boost

I'm sure this did not help in keeping the seals on the guides...

[3400-95-Modified]

I would assume your intake seals would have popped off before your exhaust ones though..

[tejohnson]

I would assume your intake seals would have popped off before your exhaust ones though.

No, the intake seals are smaller and fit much tighter on the guides. The comment about boost was a big guess on my part. I assume at this point that there would be an impact. The intake seals simply didn't budge. I am not the only person that has experienced this. If you recall, see: http://60degreev6.com/forum/showthread.php?t=38539

If I recall, there were comments that the springs movement lifted the seals up. Did they? If that is the case, why did they all not lift up? I know the springs had no movement on my heads...

[tejohnson]

As it turns out, and after trying the new seals and doing some thinking, I believe I placed the intake and exhaust seals on the opposite guides. (Edit: But I didn't, see my followup post below with pictures) The smaller seals probably should have been placed on the exhaust guides. When attempting to use the new seals I proposed, they are an awesome fit on the exhaust guides, but they do not want to seat fully on the intake guides. Which this seems bizarre since it looked to my calliper gauge as if they were the same size. Due to the positioning of the guides, it is tough to get a precise measurement. So, the prior seals may work fine at least on an N/A setup, but I am sceptical about a boosted setup.

Since I'm selling this, and how I tend to over engineer, I bought some more 3.1 seals so I can use the smaller seals for the intake guides, since there was no issues with them before. Exhaust guides will have the Toyota seals specified above...

Will update with pictures when the new 3.1 seals arrive.

[tejohnson]

Ok. A little vindication for myself now that I know I am not crazy. The picture below is of a new box 3.1 valves. Note, the bigger seals are labelled as the "Exhaust" valves, so I did originally install them correctly.



Close up of the 3.1 valve seal box. "Felpro SS 72685"



So I used the supra seals for the Exhaust, and the smaller (6-93734) 3.1 Intake seals for the Intake. All seals have a firm grip on the valve guides.



A close up of the installed seals. Again, notice the casting number of these '99 heads. The Intake valve guide is ~.001 - .002 larger than the Exhaust guides. So my troubles are only verified with these heads with this casting number.



Perhaps this is a bit overkill. The "93734" 3.1 Intake seals would likely work on all the guides, however, I could not obtain only the Intake seals. Hopefully this helps someone with a similar situation.