| [GMCnet] Exhaust riser valve [message #120625] |
Sat, 02 April 2011 19:33  |
Richard Brown
Messages: 281
Registered: May 2009
Karma:
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Senior Member |
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If anyone has a riser valve lying around, could you check to see what position the weight is when it's wide open? The manifold is still too hot to work with on mine, but the weight appears to be nearly horizontal(sticking straight back). What I'd mainly like to know is does the bimettalic spring (which is gone) hold the valve closed & once heated allow the weight to open it up or the other way around? I would figure that if the valve was working, removing the spring would allow the weight to hold it wide open. I not try to remove it until it has the chance to soak a bit. I put penetrating oil on the bolts, but it's still hot, so most of it smoked off. If I can see which way is open, then maybe I won't need to take it off if I don't have to.
Richard & Carol Brown
1974 Eleganza SE
"DILLIGAF"
Lindale, Tx. 75771
903-881-0192
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Richard & Carol Brown
1974 Eleganza SE
1174 Hickory Hills Dr.
Murchison, TX. 75778
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