I'm trying to sort out what previous owners have done to a poor, abused '89 Festy L. I have the EVTM, haven't snagged a shop manual yet. If I read this correctly, the green vacuum valve on the firewall is EGR #2. The top port is connected to fresh air on the air cleaner, lower port looks like a factory connection to the vacuum rail. The center port is just flappin' in the breeze... That goes to the EGR modulator, correct? I've got a green hashed line on the modulator, holds vacuum, and haven't been able to locate the other end. Can anyone confirm that should be the connection to EGR 2?
Also have a blown upper diaphragm on the vacuum advance. Lower is fine, and that is routed to spark port vacuum. Upper is capped. That provides some advance, but I'd really like to fix it properly. Any pointers to a source for a suitable replacement other that replacing the entire distributor? No joy finding a carbed Festy at the local yards, never mind one that has a working advance.
Thanks, folks. --Quentin Smith
Also have a blown upper diaphragm on the vacuum advance. Lower is fine, and that is routed to spark port vacuum. Upper is capped. That provides some advance, but I'd really like to fix it properly. Any pointers to a source for a suitable replacement other that replacing the entire distributor? No joy finding a carbed Festy at the local yards, never mind one that has a working advance.
Thanks, folks. --Quentin Smith
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