| Re: - secondary's not opening - more info [message #365646 is a reply to message #365534] |
Fri, 23 July 2021 17:25   |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma:
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When you rev it in park the secondary air valve should only slightly open visually. If it is flopping wide open the front dash pot is bad, vac hose to it is bad or spring on air valve set too loose. The front dashpot has a less than pin hole orifice to hold back the opening time after the vacuum to the pot drops. It should open gradually in gear under load as you floor it. Fuel is heavy compared to air an takes time to match the more rapidly accelerating air. If air valve opens too soon you get bog. If the front dashpot and hose to it are good, you can increase spring wind up tension on the air valve. You hold the flat blade screw with a small driver, loosen the locking allen and slightly turn the screw for more tension, then tighten allen lock screw.
John Lebetski
Woodstock, IL
77 Eleganza II
[Updated on: Fri, 23 July 2021 17:27] Report message to a moderator |
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