Date: Thu, 17 Apr 2008 22:51:26 -0400
Reply-To: Jonce Fancher <streetbugs@WHISPLLC.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jonce Fancher <streetbugs@WHISPLLC.COM>
Subject: Re: 84 vanagon wasserboxer
In-Reply-To: <BAY121-DAV1D86A0F9843FC6436EF30C6E40@phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Hi Surging was talked about a few years ago. I have it on my 84 with only 24k miles once warm and coming off of the freeway. There was somthing about
the black tower that if you use a PCV Valve on it and plug the intake boot where it plugs into the side of the intake that it will correct it. My 84 doesnt get
many miles and developed a brake booster issue so I will be fixing that when I get around to fixing the Brakes first. But this is suppose to fix it since it is
putting to much back pressure into the intake. Ive not tried it so I can not attest to it but I will be trying it since EVERYthing on this motor works and it still
surges. Well everything but the brake booster. Thanks C-ya and please report what you find if you try the PCV valve
C-ya Jonce
>Bart,
>I've tried everything to solve this on my 84 1.9.
>It is probably surging because once it is warmed up it is actually idling to
>fast. With the idle switch closed, the computer shuts off the injectors when
>the idle gets to high for some reason. If you idle it down to about 950
>when its warmed up it will probably stop surging. . . but then it won't idle
>when its cold.
>You can check the cold start valve by pinching off the big hose that goes
>between the cold start valve and the manifold when the engine is cold and
>the rpms should drop. Then after the engine is warmed up pinch it off again
>and the RPMs should not drop.
>My latest attempt to fix this was to get a set of rebuilt injectors. Now it
>does seem to run better in general, and takes longer before the idle starts
>to creep up. We'll see what happens on a nice warm day when I've been on the
>road for a while. If it is fixed finally, it will have been the rebuilt
>injectors. That was the only thing left to try.
>Steven
>----- Original Message -----
>From: "Bart Holmquist" <barth@UNLSERVE.UNL.EDU>
>To: <vanagon@GERRY.VANAGON.COM>
>Sent: Thursday, April 17, 2008 11:37 AM
>Subject: 84 vanagon wasserboxer
>> After warming up a few minutes with smooth idling, the idle then
>> starts galloping with a cycle of about 3 seconds and an RPM change
>> guessed to be from 700 to 1500 or there abouts. On cooling the whole
>> cycle can be repeated i.e. smooth idle while cold, gallop when warm.
>> When driving (216k) it runs fine with good mileage (22-24 at 55). No
>> apparent other issues: wires OK, coolant OK, plugs OK. Where should I
>> start looking?
>>
Jonce Fancher
56 Single Cab
66 Sunroof Bug
66 Variant Squareback
66 Porsche 912
71 Sunroof Bus
84 Vanagon "Gottfried"
85 Vanagon Westi
2003 10 Passenger Sprinter
Fancher's Upholstery Inc. - www.fanchers.com
Not-A-VW Club- http://mywebpages.comcast.net/jaransont3/notavwclub/
