| [ Total Views: 521 | Total Replies: 9 | Thread Id: 14739 ] |
|
|
 Starbug
Veteran Volks Folk
rustbag
Posts: 2408
Threads: 148
Registered: February 13th, 2003
Member Is Offline
Location: and velocity are mutually exclusive.
Theme: UltimaBB Pro Blue ( Default )
Mood: still here, still rusty.
|
 posted on October 20th, 2003 at 03:12 PM |
|
|
Something weird has just happened to my beetle, can anyone help out?
I noticed yesterday that the car was running a little rough... thought i should see what it could be when i got home. Lo and behold the car died in
the middle of the normanby fiveways (lucky it was late or there would have been heaps of traffic)
got towed home. Thought it was the points, so had a look and changed them. the sparkplugs seem alright, all wires are connected, battery is ok. Still
wont start.
It sometimes gets to chugging stage, but that doesnt last long. Just tried to start it again now and it wont even chug and a strange popping sound
comes from the hole that the red arrow is pointing to. (i have the pdfs for the dcn, but they dont show the 40dcn and therefore i cannot locate that
hole to find out what it is)
anyone have any ideas what it could be? Any help or suggestions are muchly appreciated.
(all this just has to happen the day before i need the car to get to exams.... isnt that always the way!)
| Error |
| Sorry, you must be a registered user in order to download attachments. |
|
|
|
|
 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 October 20th, 2003 at 03:31 PM |
|
|
i cant see those screw exactly in the Haynes manual (yeah only DCNF's) but they would be darn close to where either your mixture screw or air
bypass screw would live.
There "should" be exactly the same hole on the other side of the carb
Have a look
See anything different???
Has one of these screws fallen out???
The good news is that 99% it will be a tuning problem
Missing screw or blocked idle jet.
Cause you are running only one carb a blocked idle will knock out 2 cylinders.
Do you know where the idles are???
Futue te ipsum!!!
|
|
|
Starbug
Veteran Volks Folk
rustbag
Posts: 2408
Threads: 148
Registered: February 13th, 2003
Member Is Offline
Location: and velocity are mutually exclusive.
Theme: UltimaBB Pro Blue ( Default )
Mood: still here, still rusty.
|
| posted on October 20th, 2003 at 04:56 PM |
|
|
it has the same hole on the other side but that also has no screw, and the idle screw is on the other side there is only one. |
|
|
Salahahdin
Seriously Crusin Dubber
Posts: 176
Threads: 20
Registered: July 18th, 2003
Member Is Offline
Location: SunshineCoast, QLD
Theme: UltimaBB Pro Blue ( Default )
Mood: de-caffeinated
|
| posted on October 20th, 2003 at 05:04 PM |
|
|
I wish I lived closer to come and help out. I ain't a genius but two heads are better than one.
Sorry I got no solutions, just check all your vitals, but it sounds like you know what you are doing there. Check your condenser, maybe even get
someone to block that hole with a finger while you try and start it.
Good luck Starbuggy!!
Charlotte Kevin and Brian
 |
|
|
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 October 20th, 2003 at 05:04 PM |
|
|
Do you know where your mixture screws and air by pass screws are???
Is there thread inside these holes???
:alien
Futue te ipsum!!!
|
|
|
Baja Wes
Bishop of Volkswagenism
V6 Baja Pioneer
Posts: 3119
Threads: 94
Registered: August 26th, 2002
Member Is Offline
Location: Brisbane
Theme: UltimaBB Pro Blue ( Default )
Mood: Content
|
| posted on October 20th, 2003 at 05:20 PM |
|
|
knowing nothing about the dcn or dcnf I would say it would either be a air bypass jet hole, or it is a hole left over from machining the internal
ports, and should normally be blocked off. Try covering/blocking it with anything and seeing if it starts.
|
|
|
Starbug
Veteran Volks Folk
rustbag
Posts: 2408
Threads: 148
Registered: February 13th, 2003
Member Is Offline
Location: and velocity are mutually exclusive.
Theme: UltimaBB Pro Blue ( Default )
Mood: still here, still rusty.
|
| posted on October 20th, 2003 at 05:20 PM |
|
|
there isn't any thread in them, they seem to be a inlet or outlet for something. the hole as far as i can see moves to the left after 15mm. i
know where the mixture screw is but not the air bipass screws are. i don't think there are any. where is the best and cheepest place to get the
webber checked out in brisbane?? |
|
|
Baja Wes
Bishop of Volkswagenism
V6 Baja Pioneer
Posts: 3119
Threads: 94
Registered: August 26th, 2002
Member Is Offline
Location: Brisbane
Theme: UltimaBB Pro Blue ( Default )
Mood: Content
|
| posted on October 20th, 2003 at 05:23 PM |
|
|
cheaper webers don't have air bypass screws. They might be ports that should be blocked. Try blocking them.
|
|
|
Starbug
Veteran Volks Folk
rustbag
Posts: 2408
Threads: 148
Registered: February 13th, 2003
Member Is Offline
Location: and velocity are mutually exclusive.
Theme: UltimaBB Pro Blue ( Default )
Mood: still here, still rusty.
|
| posted on October 20th, 2003 at 05:37 PM |
|
|
found the air bypass screw, its near the float at the back, there seems to be more oil than usaual around the air filter base??
could the reason its not starting be the ignition coil, as it turns over but does not fire, and when it did it took a long time ( holding the key on)
to start, the idle was very rough, as if it was only firing on a few cylinders?? |
|
|
Starbug
Veteran Volks Folk
rustbag
Posts: 2408
Threads: 148
Registered: February 13th, 2003
Member Is Offline
Location: and velocity are mutually exclusive.
Theme: UltimaBB Pro Blue ( Default )
Mood: still here, still rusty.
|
| posted on October 20th, 2003 at 05:38 PM |
|
|
found the air bypass screw, its near the float at the back, there seems to be more oil than usaual around the air filter base??
could the reason its not starting be the ignition coil, as it turns over but does not fire, and when it did it took a long time ( holding the key on)
to start, the idle was very rough, as if it was only firing on a few cylinders?? noticed small amount of vapour or smoke from the oil filler when i
try to start it. |
|
|
Menangler
A.k.a.: Dave Becker
Custom Title Time!
Posts: 1991
Threads: 309
Registered: August 26th, 2002
Member Is Offline
Location: South Coast NSW
Theme: UltimaBB Pro Blue ( Default )
|
| posted on October 20th, 2003 at 05:38 PM |
|
|
It does have fuel in the carb? right.
I ran out of fuel on the weekend, sounded like that too, chug chug, stop!
FAHRVERGNUGEN;
Description of a pleasurable sensation,
Experienced when a car and it's driver are in mutual harmony, A unique driving experience, Pleasure, Satisfaction,
A feeling experienced by Volkswagen Drivers.
 |
|
|
tonyg
Seriously Crusin Dubber
Posts: 174
Threads: 15
Registered: October 15th, 2003
Member Is Offline
Location: south johnstone, FNQ
Theme: UltimaBB Pro Blue ( Default )
Mood: lost in the deep north
|
| posted on October 21st, 2003 at 05:58 AM |
|
|
Ignition ON, take dissy cap off, turn engine so points gap is closed. With a small insulated screw driver, open points, taking not to short out aginst
anything with screwdriver shaft. Should have fat bluish spark between points when opening. All well here? Ok then put cap back on, remove a spark plug
lead and hold about 5 mm from a clean earth point, rotate engine: should have fat spark there... that should give you satisfaction that the ignition
is ok.
Then start looking for vacuum leaks and fuel blockages. My guess is that the idle or main jet in carby is blocked. Had that happen once and had to
drive 80km by continuously pumping accelerator and using fuel from pump circuit to get home. Has a painful right ankle for days!
they took me away haha, hope the medication works
|
|
|
