| [ Total Views: 559 | Total Replies: 3 | Thread Id: 5871 ] |
|
|
 Purple Martin
A.k.a.: Martin
Fahrvergnugen
Posts: 913
Threads: 141
Registered: February 13th, 2003
Member Is Offline
Location: Canberra
Theme: UltimaBB Pro Blue ( Default )
Mood: warm & fuzzy
|
| posted on May 2nd, 2003 at 09:19 AM |
|
|
running rough after replacing needle valve
Hi everyone,
My stock dual solex carbs were running great (2L kombi). Until a needle valve stuck on the right side and petrol started leaking out all over the
manifolds and plugs (scary).
So I replaced the needle valve. It's a job so easy that even I could do it. But now the bus runs really rough. What could I have stuffed up?
TIA!
1959 red & white Beetle
1975 Kombi camper
|
|
|
 Bizarre
Super Moderator
The artist formerly known as blue74l
Posts: 12780
Threads: 734
Registered: August 25th, 2002
Member Is Offline
Location: Abbotsford, Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 2nd, 2003 at 10:04 AM |
|
|
Float level?
Futue te ipsum!!!
|
|
|
Phil74Camper
Son of Jim - Creator of Good
Head in the Clouds
Posts: 2703
Threads: 193
Registered: August 28th, 2002
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 2nd, 2003 at 11:01 AM |
|
|
Did you fit the air cleaner horn back onto the top of the carb correctly? Is everything else on the air cleaner connected up?
Did you accidentally pull any wires off the carb?
Is the cross-linkage still connected properly? It is spring-loaded, and it's easy for the little plastic cup on the right-hand ball to go missing
in the depths of your engine bay. Check there's no slop in the linkage.
Did you remember the gasket between the top and bottom of the carb??!!
|
|
|
Purple Martin
A.k.a.: Martin
Fahrvergnugen
Posts: 913
Threads: 141
Registered: February 13th, 2003
Member Is Offline
Location: Canberra
Theme: UltimaBB Pro Blue ( Default )
Mood: warm & fuzzy
|
| posted on May 2nd, 2003 at 11:04 AM |
|
|
Thanks. I put in a new gasket, I'll check the other things.
Is the float level difficult to check?
1959 red & white Beetle
1975 Kombi camper
|
|
|
70AutoStik
Insano Dub Head
Posts: 730
Threads: 18
Registered: August 30th, 2002
Member Is Offline
Location: Dandenong. Victoria
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 3rd, 2003 at 12:58 AM |
|
|
Don't want to offend, but it sounds a little like your original problem was a leaking float.
|
|
|
Purple Martin
A.k.a.: Martin
Fahrvergnugen
Posts: 913
Threads: 141
Registered: February 13th, 2003
Member Is Offline
Location: Canberra
Theme: UltimaBB Pro Blue ( Default )
Mood: warm & fuzzy
|
| posted on May 3rd, 2003 at 10:07 AM |
|
|
Bugger!
Well here's some more detail on the original problem: I noticed petrol leaking out of the right carbie. It was dripping off the throttle lever
(where the linkage from the cross-bar clips on) and running down the inlet manifold, making puddles on the tin and dripping onto the road. The petrol
was only below the flange, not above it. I told my local mechanic what was happening and he straight away said it was a stuck needle valve and gave
me a new needle valve and gasket (he didn't charge me, I'm a regular and he's a nice guy). Now that I've replaced the needle
valve there's no petrol leaking at all, it's nice and dry.
So could those symptoms be caused by a leaking float? And could a still-leaking float be causing the rough running without any external leaking?
1959 red & white Beetle
1975 Kombi camper
|
|
|
70AutoStik
Insano Dub Head
Posts: 730
Threads: 18
Registered: August 30th, 2002
Member Is Offline
Location: Dandenong. Victoria
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 3rd, 2003 at 07:23 PM |
|
|
If it's not leaking now, it may be the float's OK, or the new valve may be stuck in some way, or you may not have the float level corrct.
Best to pull the top off the carby and check the level - my Bentley says the fuel should come t0 19.5mm from the top of the carb body (+or- 1mm,) but
this is on a single.
|
|
|
mnsKmobi
Wolfsburg Wizard
Posts: 589
Threads: 27
Registered: August 27th, 2002
Member Is Offline
Location: Melbourne
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 6th, 2003 at 10:08 AM |
|
|
Dual carb float level is 12 to 14 mm from the top according to Bentley.
|
|
|
