GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: Khare on 01 November 2008, 12:34
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Hey guys. now winter is here i have put my hot air feed and foam pipe back in place to stop carb freezing, but it hasnt helped :sad: its still really serious. Can a badly tuned carb cause this? i know its running very rich and idle is a tad high. I got a weber 32/34.
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I think you can change the chokes on these carbs, so have you got the correct chokes installed for your engine application? If the chokes are too small, then the pressure differential accross the chokes will be high causing a higher velocity airflow, reducing static pressure and thus temperature. You will also lose a little power as the engine will not breath sufficiently.
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the choke size is correct. i didnt get carb freezing last winter when i had bought the car. and i made a run to gatwick last year and it snowed for hours and temp was absolutly freeezing, and i didnt get carb freezing...yet today, its raining, not extremly cold, but on the chilli side, and i got carb freezing on the way home :sad:
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You got carb freezing while the car was in motion and the engine already warm? :huh:
You sure the hot air feed has not perished or come off again? Is the seal tight?
The other morning when it had snowed overnight, my bonnet had lumps of ice on (as the rest of the car did as well), the car started first time. Do you ever use Redex to clean the carb/engine?
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You got carb freezing while the car was in motion and the engine already warm? :huh:
You sure the hot air feed has not perished or come off again? Is the seal tight?
The other morning when it had snowed overnight, my bonnet had lumps of ice on (as the rest of the car did as well), the car started first time. Do you ever use Redex to clean the carb/engine?
yup. engine warm, had been driving for about 20/30 minutes.
hot air feed i bought some new aluminium ducting the other day and put it on so its in good conidtion. Its not airtight seal, but its sealed enough to get hot air in the carb. i havent used redex in about 2 months but i will be using it this week sometime. car starts first time everytime, carb freezing only when its hot, doesnt happen when its dead cold. I usually pull up somewere, let it idle cough for a min, give it a couple of revs, although when i do it bogs down/cuts out, turn it off unless its already cut out, wait 2 or 3 mins, turn it back on, and its good for another 10/15 mins.
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Get the timing setup, when last did you change spark plugs and fuel filter?
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Get the timing setup, when last did you change spark plugs and fuel filter?
timing is spot on, was set up a couple of months ago.
Fuel filter and spark plugs were changed about 6 months ago, along with dizzie cap and rotor. although im gonna give it another full service in a month or two.
dont think its to do with servicing parts though. its more carb related in my opinion. When idleing, it has a very slight misfire, which yes, could point to timing, but the power is still there and as i said, it was done a few months ago.
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my driver used to do it with the pierberg, i had a quality hot air feed and set the carb up my self, but still had the problem. i discovered where the hot air feeds into the intake system, there is a vacuum operated flap. obviously should open close as req. the diaphram had failed and this flap was stuck closed so no hot air could get in. i put a screw through the casing, jamming it open so i always had hot air from the exhaust flowing .
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thats the awnser i wanted. i put vac pipe back on but i dont see how it controls the flap :undecided:
so keep the flap up so less cold air comes in yea?
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sorted. hopefully anyway. Put some screws jamming the flap, so its 3/4 hot air and 1/4 cold. Should be enough to avoid carb freezing.
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Thats exactly what i did, on the recommendation from VW, and i havent had carb icing in three years... I used to get it pretty bad too, sometimes in the summer too. Also, carb icing doesnt really happen when its really cold, tends to only happen when its damp or just a bit cooler.
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Thats exactly what i did, on the recommendation from VW, and i havent had carb icing in three years... I used to get it pretty bad too, sometimes in the summer too. Also, carb icing doesnt really happen when its really cold, tends to only happen when its damp or just a bit cooler.
mine does it when its damp, cold, and freeeezing, sometimes when its warmer too.
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wow i provided usful advice :smiley:
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wow i provided usful advice :smiley:
yeah dude. thanks :wink: hopefully it should run sweet as a nut all throughtout winter :smiley:
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Let's hope that solves your carb problem.
My drivers going to be £1101 this year :angry:
Did I mention mines going to be about £30 p/m :grin: and about £380 for the year, that's delcared as parked on the street overnight too :grin:
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to be honest i give all respect to mk2 owners, and infact all old vw owners, be it old polos jettas ect. ive had a 1.3 a 1.6 driver an 8v Gti and now ive got a G60 but unlike you i dont go around with a chip on my shoulder, and before you start yaping on about 16valves la la la ive got a car with an ABF in it so i kind of know how they work as well.
as for you, your not making many friends around here
as for the original point of this topic, hope having the hot air feed stuck open sorts your problem mate like i say it sorted mine a few years back and then in the warm weather i just removed the screw.
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Sharpie, stop baiting them.
Them. stop rising to the bait that Sharpie throws in. For goodness sake, he's looking for a rise and you're in there rising hook, line and sinker.
While a 16V is nice and an ABF is even nicer, it's possible to have a lot of fun with an 8V - even one with drums on the back.
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Thanks for wasting at least 10mins of my life ridding this topic of shit.
In future i'll just delete the lot, any problems either PM me, or come visit me at a show. Ta ra.