| [ Total Views: 507 | Total Replies: 6 | Thread Id: 44813 ] |
|
|
 General_Failure
A.k.a.: Tristan
Custom Title Time!
Use your head, don't abuse it!
Posts: 1036
Threads: 107
Registered: June 15th, 2004
Member Is Offline
Location: Peaceful Finley, NSW
Theme: UltimaBB Streamlined2
Mood: Not too bad. Thanks for asking!
|
| posted on October 15th, 2005 at 01:12 PM |
|
|
dual carb idle mystery
Hey everyone. I just moved house again.
My 1800 dual carb kombi had been running terribly. When I started it up a few days before I moved I thought the volkswagen fairy had visited.
It started first go. It didn't cut out on acceleration and it ran much smoother. It seems to be running on all 4 now too.
On further inspection it turned out the reason it's running better is that the fuel cutoff solenoid became unplugged on the right carb.
Shouldn't the cutoff solenoid becoming disconnected make it run worse? what's going on?
I've tried to figure it out but it's beyond me.
Any ideas people?
If at first you don't succeed. Build, build again.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.
|
|
|
vwrallycar
A.k.a.: Andrew Rankin
Insano Dub Head
Posts: 721
Threads: 83
Registered: September 2nd, 2002
Member Is Offline
Location: Rockhampton, Queensland
Theme: UltimaBB Pro Black
|
| posted on October 15th, 2005 at 08:59 PM |
|
|
try checking the wiring, perhaps its faulty. sounds like a good one to sort out
|
|
|
General_Failure
A.k.a.: Tristan
Custom Title Time!
Use your head, don't abuse it!
Posts: 1036
Threads: 107
Registered: June 15th, 2004
Member Is Offline
Location: Peaceful Finley, NSW
Theme: UltimaBB Streamlined2
Mood: Not too bad. Thanks for asking!
|
| posted on October 16th, 2005 at 01:29 PM |
|
|
wiring's all fine. both solenoids operate too. not sure if they're doing their job, but they go click when I apply current. I just don't get why
the motor runs better with one side disconnected. Could there be a leak or a blockage in the idle circuit somewhere?
If at first you don't succeed. Build, build again.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.
|
|
|
76camper
Fahrvergnugen
Posts: 884
Threads: 89
Registered: January 13th, 2005
Member Is Offline
Location: sydney, northern beaches
Theme: UltimaBB Pro Blue
Mood: happy :-)
|
| posted on October 19th, 2005 at 09:31 PM |
|
|
most probably a blockage in the system or something... maybe an air leak. Maybe try replacing the little o rings on the idle adjustment screws ontop
of your left carb. Good to hear the move went well and the bus is running 
|
|
|
beerdoc
A.k.a.: Doc
Insano Dub Head
Posts: 838
Threads: 42
Registered: July 27th, 2004
Member Is Offline
Location: Geelong Vic
Theme: UltimaBB Pro Blue ( Default )
Mood: Its all good
|
 posted on October 19th, 2005 at 09:46 PM |
|
|
I find when running ruff (woof) go simple things first check the fuel filter
I think a tight valve will make it iddle weird as well
Cheers Doc
reVOLKS at Fyansford Geelong
20th OCT 2007 STAY TUNED FOR DETAILS
 |
|
|
Midlife crisis
Veteran Volks Folk
Nartispuddlejumper, Bureau of Toxicity
Posts: 2282
Threads: 160
Registered: May 17th, 2003
Member Is Offline
Location: Logan city south of Brisbane
Theme: UltimaBB Pro Blue ( Default )
Mood: Wornout and Toxic
|
| posted on October 19th, 2005 at 09:51 PM |
|
|
my 1800 was running really rough checked everything then checked the valves and found 2 that were a little tight checked and adjust them all and it
idled much better
Hope this helps
Marc
If you can't laugh at yourself you can't laugh at anyone else! Because life is to short not to LAUGH
|
|
|
General_Failure
A.k.a.: Tristan
Custom Title Time!
Use your head, don't abuse it!
Posts: 1036
Threads: 107
Registered: June 15th, 2004
Member Is Offline
Location: Peaceful Finley, NSW
Theme: UltimaBB Streamlined2
Mood: Not too bad. Thanks for asking!
|
| posted on October 20th, 2005 at 03:52 PM |
|
|
not 100% sure until I take it for a drive, but I may have found the problem.
The solenoid on the right hand carb was loose. For some reason it was partially unscrewed. I guess it was letting through too much fuel or letting in
air or something.
After I tightened it, the van was hard to start, but it hasn't been started in a week, it's been on ramps and it's been rining so I'll let that
slide. Afterwards it was an instant start. No idea if it's a gutless wonder though.
Sticky valves is a possibility too. I should have checked that when I had the rockers off yesterday to fix pushrod tube leaks. Ah well, maybe later.
If at first you don't succeed. Build, build again.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.
|
|
|
