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Dec 18, 2007 9:53 am
Dec 18, 2007 9:53 am
Subject: 2L engine problem
I have asked this before but, not yet being familiar with how to use this Forum, it was in the wrong place. Therfore, my question again in a new thread. The problem is that the downdraft SU carburetters (see image) on my 2L engine "spit back" quite a bit of petrol (in small clouds of very tiny droplets) through the air inlets when the engine is running, especially when the car accelerates. This creates a highly explosive atmosphere under the bonnet and a nasty petrol smell. As I am currently rebuilding the engine I would like to solve that problem - only I haven't a clue what causes it. The car ran very well in spite of this and the valve overlap was 15 degrees. Ideas anyone?
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I have asked this before but, not yet being familiar with how to use this Forum, it was in the wrong place. Therfore, my question again in a new thread. The problem is that the downdraft SU carburetters (see image) on my 2L engine "spit back" quite a bit of petrol (in small clouds of very tiny droplets) through the air inlets when the engine is running, especially when the car accelerates. This creates a highly explosive atmosphere under the bonnet and a nasty petrol smell. As I am currently rebuilding the engine I would like to solve that problem - only I haven't a clue what causes it. The car ran very well in spite of this and the valve overlap was 15 degrees. Ideas anyone?
Attachments: