GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: DRobbo on 22 October 2007, 18:48
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On my way to work (Bedford Autodrome :grin:) tuther day... Steady at 90 (where the law allows :lipsrsealed:), then the speed drops off over about 5 miles (this happens most dramatically at 3/4 throttle when it feels like I've down shifted to third), before the engine starts to splutter a lot.
Pull onto hardshoulder, car splutters and stalls. Start up again, vary the revs for a couple of min, then drive on again as if nothing had happened.
This happened twice in one hour!!! And once on the M4 two weeks ago :angry:
My theory is dirt in the carb... Could it be anything else???
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would help a lot if you told us what car with what engine and what age :grin: :grin:
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carb iceing? it is getting colder now
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get urself an rac membership dude, never know when it'll be more serious!!!! Well worth it (trust me) :grin:
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Woops! :rolleyes:... Its a 1.6 Driver running with a Weber carb...
Don't reckon its iceing up as I had already been driving for over half an hour.
Don't worry I've already got membership with the RAC :wink:
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Sounds like what was happening to my old Driver a few years ago, mine was the carb icing up, the tube putting hot air from the engine to the air intake was missing. Would splutter and would have to pull over, sit for a couple of minutes and it would be fine, my theory was the hot engine defrosting the carb.
I broke down 4 times once from Manchester to Leeds - rubbish.
So i'd check to see whether that pipe is missing.
Good luck
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I'll second that, my MK2 did the same thing!
The pipe is the thing with the green arrow, BTW.
Would also suggest checking the flap thingy here - red circle. When the engine is cold, it should be closed to cold air and fully open to warm air to come in through the elbow connection, as the engine warms up it should slowly open to cold air.
Mine had the warm air pipe there fine, but the flap had siezed open...
(http://mail.thebournes.me.uk/~ed/IMG_2866.JPG)
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my driver i replaced the pipe from the exhaust but found the diaphram for the flap had failed, so i put the flap halfway open and put a screw to keep it there, no more carb icing last winter.
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Yay broke down another three times - M1 and A43 this time! :angry:
It's been running faultlessly since last time, but today is a serious hate day for the Golf, has to happen after a few weeks of loving it I spose!
The pipes there but need to have a good luck at the flap I think... It's a pain being at uni with no tools :rolleyes:
(Anyone know a specialist near Loughborough who could sort out a carb rebuild for me BTW?)
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Yep defo carb icing! check that the metal shroud around the exhaust manifold is there,if not it'll ice up even if the pipe & flap are present & working!
Also check that the carb heater has been fitted to the webber and that it works. Make sure the carb is earthed to the rocker cover and that the heater gets 12v with the ignition on :)
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I totally forgot about this problem with my car! Been doing more work on it than driving it!
But it's still happening, so...
@ rubjonny; metal shroud all good, but what carb heater!!?! (what am I looking for, I may be being stupid!), and its not earthed (I've got the connection to the rocker cover, but where would this connect to the carb?)
@ the flap people :wink:
(http://mail.thebournes.me.uk/~ed/IMG_2866.JPG)
i put the flap halfway open and put a screw to keep it there, no more carb icing last winter.
Eh? How does the flap open cos I can't move it in any way!
Cheers all
Dave
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my 1.3 has just had this problem, broke down twice under braking and once stopped at the red light it seemed to be only when the engine was idling though if i kept a few revs on it was ok. i do need to replace the pipe that takes the hot exhaust air to the intake though so hopefully that'll sort it.
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Fuel starvation can give the same symptoms! replace inline filters before going for a carb rebuild...
Lyon garage in Loughborough are VW specialists, great work at resonable prices...
Tom
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the flap inside that round cover thing should open when the engine is on, if it don't move its siezed shut. You could just wedge it open with a self tappin screw through the side :)
As for the carb heater, its a small round thing with a wire coming out the back, it should have been fitted to the front of the carb. If its not there then you need to fit one, and if the carb aint earthed then it wont work! You run a wire between the rocker cover and the top of the carb somewhere, there should be a screw post somewhere you can attach it.
In this pic you can see the earth lead, the heater isn't visible here its below the thing with a spade terminal on it, check out me pierburg 2e2 FAQ post for an exploded diagram:
(http://vwtech.no-ip.info/images/golf/pierburg2e2/pier1sm.jpg)
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If you take the airbox off and look in the end of the pipe, you should see a silver hooky thing that goes up into the vacuum thingy.
you should be able to push that up by hand (the vacuum thing pulls the flap up). If it won't move, it'll have done the same thing as mine - the ends of the rod the flap pivots on will have gone rusty and siezed in the holes at the side of the tube.
I sorted mine by taking the flap housing off the end of the airbox (b*stard of a job, the plastic is really stiff) - it comes apart then, so you can clean up the ends of the rod, bung a bit of grease on and it should be OK!
('course, WD40 in the pivot might make it free up enough to work...)
Edit: ^^ dammit...
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I had something like this on the A1(M), turned out the electrics were buggered, intermittently stopping the fuel pump pushing the juice in the engine thus the spluttering. Cost me 250GBP to fix, beauty now!!!
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I owned a 1981 Passat for ten years, like this one.
http://images.forum-auto.com/mesimages/383278/passat%20carat%20av.JPG
The last year or so I had it, the car would fail on A roads and motorways (basically, any road where lots of fast cold air entered the engine compartment. It would splutter to a halt and then be back to normal within 20 seconds. Off we go again for another 7 or 8 miles and then the same thing. Very dangerous on the motorway. We found out it was the carb icing up. In the Spring and the Summer the symptoms went away.
Ed
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Ran the fuel tank low? This could of got a lot of dirt through so possibly just a dirty carb. To sort it for a bit, just start the car up let it tick over for a bit. Rev it to between 3-4k have a mate stick some cloth over the air intake and pull it out just as the car sounds like its going to stall. Perform this a couple of times to ensure that the Carb keeps clean :)
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mine is doing the saME thing at the moment. same set up. webber carb on 1.6 driver.
there is a rubber mounting plate under the carb and it breaks up and then allows to much air into the engine.
needs a new rubber plate. £40 tho :(
thats what im dong this weekend.
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there is a rubber mounting plate under the carb and it breaks up and then allows to much air into the engine.needs a new rubber plate. £40 tho
Hi
Cut one out of an old tube from a tyre.
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Thanks for all your help... Its fixed now!!! Dismantled the airbox at the motorway services, took the flap out, and it ran fine after that! So I'll buy a new airbox and it'll all be good again...
Still worth earthing the carb do you reckon?
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if you dont the carb heater wont work. but if its not fitted then theres no point :grin: