78 l82 de-smogged by bubba
Thread Starter
Instructor
Joined: Feb 2014
Posts: 104
Likes: 1
78 l82 de-smogged by bubba
I was told the vacuum advance is all jacked up by an old gear head that pointed out the advance was affecting my idle, that I wanted port vacuum but it was still running off manifold vacuum... Does anybody here know what to do or how to figure out what to do... I keep discovering more weird stuff with this car... Any recommendations on brands for the new distributor/coil?
Le Mans Master
Joined: Sep 2002
Posts: 5,235
Likes: 898
From: Myrtle Beach SC
I was told the vacuum advance is all jacked up by an old gear head that pointed out the advance was affecting my idle, that I wanted port vacuum but it was still running off manifold vacuum... Does anybody here know what to do or how to figure out what to do... I keep discovering more weird stuff with this car... Any recommendations on brands for the new distributor/coil?
Le Mans Master
Joined: Oct 2010
Posts: 6,914
Likes: 836
From: melbourne florida
2023 C3 of the Year Finalist - Modified
contact Lars and get his papers for distributor set up. he suggests ( and most here agree ) manifold vacuum is what you want , if your purpose is to have a good running car.
Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,170
From: Hermosa
I was told the vacuum advance is all jacked up by an old gear head that pointed out the advance was affecting my idle, that I wanted port vacuum but it was still running off manifold vacuum... Does anybody here know what to do or how to figure out what to do... I keep discovering more weird stuff with this car... Any recommendations on brands for the new distributor/coil?
You want manifold vacuum for best idle quality and off idle response.
You just need a can that is rated low enough to not oscillate in and out while at idle, that will make the idle unstable because it is advancing and retarding the timing when it oscillates.
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
I was told the vacuum advance is all jacked up by an old gear head that pointed out the advance was affecting my idle, that I wanted port vacuum but it was still running off manifold vacuum... Does anybody here know what to do or how to figure out what to do... I keep discovering more weird stuff with this car... Any recommendations on brands for the new distributor/coil?
Safety Car
Joined: Jun 2004
Posts: 4,360
Likes: 221
From: Beecher Illinois
Willcox (forum vendor) has an emission hose schematic that is color coded for an 78-82 L82. Print a copy that trace your hose connections..all! See where they are routed and set according to factory specifications than determine how its running and what to do next.
Correct for 78 and 79 L82, not for L48s.
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