Runnink as Rich as a Mofo

jboy82 Seriously Crusin Dubber

105 posts · joined Feb 2003 · 4 Mar 2003, 11:14 am

#29669

G'day dudes,

I have a 1500sp with a 30pict-somethingarather which i have in my 68 beetle at the moment and for some reason it running rich, so much so that when I screw the fuel mixture screw all the way to the lean side it still produces some black smoke on quick throttle blips. Could this be a sticking needle or something like that? Should I pull the carb apart and clean it or is there something simpler?
Any suggestions are much appreciated 😀

kombikim disfunctionally capable

1,521 posts · joined Dec 2002 · 4 Mar 2003, 12:57 pm

#29682

What is a Mofo? STEP 1, check your timing is not retarded,
STEP 2 the screw you are turning is the Idle mixture only, if you screw it right in & the engine is still running it is getting fuel from somewhere else, take the aircleaner off & with the engine running & the choke flap open, look down the carburettor (you may have to use a mirror) , if you can see petrol dribbling down onto the throttle butterfly, that is your problem, simplest cause of this is flooding at the needle valve & seat in the float bowl, simplest cause of that is a little bit of dirt stuck there not allowing it to close fully, if you know what you are doing take it apart carefully & clean it, you may not see the bit that caused the problem, then- before you put the fuel line on, put the fuel line in a glass jar disconnect the high tension lead from the coil & crank the engine for a coupla seconds or a few times by hand to clear any dirt in the fuel line, then start it & see how you go REMEMBER one step at a time otherwise you will never know what you fixed. :alien

jboy82 Seriously Crusin Dubber

105 posts · joined Feb 2003 · 4 Mar 2003, 2:29 pm

#29698

Cheers Kombikim, I'll give that a try and see what happens.
By the way mofo is an abbreviation for an obscenity, I think.

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 4 Mar 2003, 2:35 pm

#29699

I am sure Rob (aka Aussie bug) will come here and tell you the truth.
Anyway i wil jump in to get my post #'s up

http://www.geocities.com/aussiebug1970/

That is his site above - go there and look under tune ups and find your carb. Have a read of that and go from there

Futue te ipsum!!!

kombikim disfunctionally capable

1,521 posts · joined Dec 2002 · 4 Mar 2003, 3:23 pm

#29715

thats a really good website, I never really looked at it before. How do I get my posts up?
hope I haven't misled you jboy82, only telling you what I would start of with

jboy82 Seriously Crusin Dubber

105 posts · joined Feb 2003 · 4 Mar 2003, 9:40 pm

#29810

One word for the website... nice:thumb
I checked the carb and I noticed the solenoid(? with a wire attached to it) was loose so I screwed it back in and the mixture adjustment screw works fine again(thats how loose it was).
Cheers Everyone.:party

Tazzielittle

Former member · 4 Mar 2003, 10:31 pm

#29833

Will have to go into the next KlubVW newsletter!
Kool site!
:thumb:thumb:thumb

mnsKmobi Wolfsburg Wizard

589 posts · joined Aug 2002 · 5 Mar 2003, 7:40 am

#29881

As I understand it a Mofo is shorthand for non-VW person.😀

aussiebug Officially Full-On Dubber

246 posts · joined Sep 2002 · 5 Mar 2003, 11:08 am

#29926

Thanks for the nice words on the web site guys - much appreciated.

jboy82 - I had exactly the same problem with the 30pict/2 on my 68 the other day - it started chewing fuel and I KNEW it was in tune (had done a tuneup a few days before), then found the idle shut-off solenoid had worked loose.

You'd think it would make the engine run lean (air leaking through the threads) but no - super rich is what happens.

It's a fine brass thread in the soft metal of the carby so it can't be screwed in HARD and the weight of the solenoid tends to work it loose occasionally.

Rob
Rob and Dave's aircooled VW pages
Repairs and maintenance for the home mechanic
http://www.vw-resource.com