Hi all,
I have a mk2 golf, 1600 with a weber carb (DMTL) replacement. When I picked the car up, it ran fine, just had a slightly erratic idle. I was told that this was due to a split in the rubber flange between weber adapter and the inlet manifold.
I bought a new flange and replaced it. The first time I drove the car everything was fine and dandy. However, after about 10 minutes I got back into the car and it would not drive unless at least half throttle.
The car stutters and jerks and tries to stall, but is normally cured with loads of throttle, or, with loads of (manual) choke.
At first it seemed like a temperature issue, however today it was doing it even when fully up to temperature.
The problem feels a lot like a blocked jet... perhaps a blocked idle, which is why more throttle solves is. Or alternatively a blocked main... and then more throttle starts to open the second choke etc etc.
So, I tried some carb cleaner. Spraying some into the carb solves the problem, sometimes for prolonged periods of time, sometimes only for a matter of driving 100 yards up the road before it starts again.
The car is however fitted with an air filter AND a fuel filter, both of which appear to be in OK condition.
Yesterday, I removed both idle jets, air jets and emulsion tubes to clean them through and ensure they were not blocked. Afterwards, the car was fine for 500 yards and the problem was worst it's been for a while. Just stuttered, jerked and chugged.
Is it likely to be a blockage or maybe something else? I've assumed not electrical as it's cured by using the choke.
I drove the car for 350 miles trouble free, it only started after I changed the carb flange.
I thought it may be temperature related as the "unidentified part" (click for link) snapped it's wire, so is not currently fitted, but it does it when cold and hot
Sorry for the essay, but I thought it best to give as thorough a description as possible.
I'm completely stumped, my only plan now is to take the carb off and buy a rebuild kit, cleaning it as meticulously as possible...
I have a mk2 golf, 1600 with a weber carb (DMTL) replacement. When I picked the car up, it ran fine, just had a slightly erratic idle. I was told that this was due to a split in the rubber flange between weber adapter and the inlet manifold.
I bought a new flange and replaced it. The first time I drove the car everything was fine and dandy. However, after about 10 minutes I got back into the car and it would not drive unless at least half throttle.
The car stutters and jerks and tries to stall, but is normally cured with loads of throttle, or, with loads of (manual) choke.
At first it seemed like a temperature issue, however today it was doing it even when fully up to temperature.
The problem feels a lot like a blocked jet... perhaps a blocked idle, which is why more throttle solves is. Or alternatively a blocked main... and then more throttle starts to open the second choke etc etc.
So, I tried some carb cleaner. Spraying some into the carb solves the problem, sometimes for prolonged periods of time, sometimes only for a matter of driving 100 yards up the road before it starts again.
The car is however fitted with an air filter AND a fuel filter, both of which appear to be in OK condition.
Yesterday, I removed both idle jets, air jets and emulsion tubes to clean them through and ensure they were not blocked. Afterwards, the car was fine for 500 yards and the problem was worst it's been for a while. Just stuttered, jerked and chugged.
Is it likely to be a blockage or maybe something else? I've assumed not electrical as it's cured by using the choke.
I drove the car for 350 miles trouble free, it only started after I changed the carb flange.
I thought it may be temperature related as the "unidentified part" (click for link) snapped it's wire, so is not currently fitted, but it does it when cold and hot
Sorry for the essay, but I thought it best to give as thorough a description as possible.
I'm completely stumped, my only plan now is to take the carb off and buy a rebuild kit, cleaning it as meticulously as possible...