Re: Q219BAL Red Berlinetta, did you own it ?
Hi Terry
I think I have asked this before but not sure you answered it.
Have you done a compression check?
You talk about the engine being really stiff to turn without plugs in. This does not sound right to me and could point to possible bent valves, incorrect valve clearance, warped cam shaft.
You say you got back firing which also points to the valves being open when the plugs fire. Could be timing but could be valves not closing effectively.
Another option for eliminating fuel issues, apart from easy start, is to put petrol into a hand pump spray bottle that has a fine spray and squirt that straight into the carb trumpets.
Do you have a carb vacuum / airflow meter for balancing? If so what airflow readings are you getting? If you put your hand over the carb inlet trumpets do you feel a strong vacuum?
To help the engine turn over better try taking out 2 sparkplugs and see if it will run on 2 cylinders.
Jon
Hi Terry
I think I have asked this before but not sure you answered it.
Have you done a compression check?
You talk about the engine being really stiff to turn without plugs in. This does not sound right to me and could point to possible bent valves, incorrect valve clearance, warped cam shaft.
You say you got back firing which also points to the valves being open when the plugs fire. Could be timing but could be valves not closing effectively.
Another option for eliminating fuel issues, apart from easy start, is to put petrol into a hand pump spray bottle that has a fine spray and squirt that straight into the carb trumpets.
Do you have a carb vacuum / airflow meter for balancing? If so what airflow readings are you getting? If you put your hand over the carb inlet trumpets do you feel a strong vacuum?
To help the engine turn over better try taking out 2 sparkplugs and see if it will run on 2 cylinders.
Jon
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