Hesitation on acceleration

Khiba · Post by **Khiba** » Mon Sep 11, 2017 11:24 pm

Hi guys. Please help. I get a hickup/hesitation when accelerating. Whether engine hot or cold. This usually happens from standstill. This only happens when choke plate is fully open allowing maximum air into the carburetor. But when choke plate is partially closed I don't experience this problem. But the car lacks power this way.

Post by **Neuk** » Tue Sep 12, 2017 8:06 am

Why are you opening the choke when the engine is hot? It sounds like your carb is not setup/tuned properly.

Khiba · Post by **Khiba** » Tue Sep 12, 2017 10:29 am

Neuk wrote:Why are you opening the choke when the engine is hot? It sounds like your carb is not setup/tuned properly.

Yeah I think so too. Will it consume more fuel?

Post by **panic-mechanic** » Tue Sep 12, 2017 11:06 am

Slow ignition timing or accelrator pump in the carb not working or it is set way too lean or the seconds stage does not open.
Choke on a hot engine will tend to overfuel and is a bad habit.

Post by **Neuk** » Tue Sep 12, 2017 11:11 am

Khiba wrote:
Neuk wrote:Why are you opening the choke when the engine is hot? It sounds like your carb is not setup/tuned properly.
Yeah I think so too. Will it consume more fuel?

A poorly tuned carb can lead to many things, poor fuel consumption being one of them.

MrMazda · Post by **MrMazda** » Wed Sep 13, 2017 8:22 pm

We had a similar problem with a 63 190 MB. The Solex carb had a mysterious air leak and even after being rebuild it was still running way to lean. so the choke was permanently +-1/4 closed / engaged. It was later solved by fitting the intake manifold & twin Solex carbs from a 66 200 MB.

MrMazda · Post by **MrMazda** » Wed Sep 13, 2017 8:22 pm

We had a similar problem with a 63 190 MB. The Solex carb had a mysterious air leak and even after being rebuild it was still running way to lean. so the choke was permanently +-1/4 closed / engaged. It was later solved by fitting the intake manifold & twin Solex carbs from a 66 200 MB.

missioner · Post by **missioner** » Wed Sep 13, 2017 8:26 pm

Broken base gasket. Kla

Khiba · Post by **Khiba** » Wed Sep 13, 2017 9:37 pm

Thanks for the responses guys. The carb was running too lean. Mechanic sorted it out.

Hesitation on acceleration

Hesitation on acceleration

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