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Date:         Fri, 20 Feb 2004 08:35:20 -0800
Reply-To:     Tom Young <tomyoung1@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Tom Young <tomyoung1@COMCAST.NET>
Subject:      Re: 1981 flooding issue
Comments: To: Sean Garrett <SEAN.GARRETT@ASU.EDU>
Content-Type: text/plain; charset="iso-8859-1"

From: "Sean Garrett" <SEAN.GARRETT@ASU.EDU> To: <vanagon@GERRY.VANAGON.COM> Sent: Friday, February 20, 2004 6:54 AM Subject: 1981 flooding issue

>My 1981 has had a issue for 3 yrs. It floods from cold start >or hot if I give it to much gas. Last night it left me stranded so >I must address the issue now. I have some ideas on how to >track down the problem and want to bounce them off some folks.

>My questions are:

>Can I disconnect the electrical connections from the Aux Air >Regulator and/or the cold start injector and will they remain in >closed position (not function). Instinct tells me that they are not >functioning right. Perhaps the Cold Start Injector is pumping gas >all the time ?

You can disconnect the electrical connectors and that *should* stop both items from working. I wouldn't disconnect the Aux Air Regulator since that isn't contributing to your flooding problem. However, if the Cold Start Injector is suffering from mechanical failure then disconnecting its electrics might not stop it from injecting. Gas is always flowing past the Cold Start Injector so if it's mechanically jambed in the "open" position it'll discharge gas irrespective of what the thermo-time switch is telling it to do.

>The engine has 8k on a new rebuild and I replaced all the FI >stuff that is on the engine with new. All of the FI stuff on the >firewall is old and seems to be functioning fine. I am going to >permanently close off the EGR valve due to its innards are >toast and that was a rebuilt one from a company in California >that specializes in them (the spring-tension arm on that fell >apart so those items are NLA).

Since you indicate that you're flooding in both hot and cold conditions this could also indicate a way-too-rich condition overall at the AFM. The springs in these things weaken over time resulting in a too-rich situation in all conditions and speeds.

--------------------------------------------------------------- Tom Young '81 Vanagon Lafayette, CA 94549 '82 Westfalia ---------------------------------------------------------------


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