Take the head to a machine shop and have the valve guides replaced with VW valve
guides with VW top hat seals. That is what is on my 948 head (same thing) and
it
works great.
Mike MacLean Supercharged 60 Sprite
Frank Clarici wrote:
> Ok guys, help needed.
>
> 1974 Midget w/1098 smoker motor.
> It was rebuilt by the PO probably in the late 70s.
> It came in a 66 Sprite I bought years ago.
> No miles on engine to speak of, long time running, rings seated, no
> smoke on accelleration.
>
> It does smoke when you fire it up or let it idle.
> Valve seals. Right?
> So I popped the head just now, crusty seals sort of cracked and fell off
> when I pulled the valve springs.
> I installed the later 1275 seals with the little spring and collar.
> No step on the guide, so what keeps the seal in place?
> I don't want to use a tooth pick to push em down after each revolution.
> Originals were little O rings, I have them but they just ride the high
> end of the valve stem, how would they "seal"?
> I am hoping the inner spring keeps the umbrella seals down where they
> are needed.
> Or should I just make this 1098 an anchor and drop a 1275 in it?
> I want to sell this car with all the crap I'll never use like wire
> wheels, 1098, rediculous looking side marker lights, big rubber blocks
> on the thin metal bumpers, and a padded dash board.
> The 1098 is the only thing that does not belong in this Midget. The
> engine interals look brand new, so does the head. I think it is just age
> that did in the rubber seals.
>
> In short, do 1275 seals work on a 1098?
> How do 1098 O rings seal the valves since they ride on the stem?
> If I find a 1275, anybody want to get this hunk of junk out of my garage
> before I see how well it floats?
> --
>
> Frank Clarici
> Toms River, NJ
> Lots of Sprites
> http://www.exit109.com/~spritenut
|