got a 3.5l RV8 motor in my escort, and its been running like a gran on a zimmerframe for the last couple of months....been playing with a few things installed a new performance coil and new magnecor HT leads so far.
Problems I am having is it jumps around a little on idle when up to temperature. Pops and bangs and jumps around off throttle and also when cruising when up to temperature. It is also hesitant under acceleration and does all of the above with no choke, lots of choke well, any kind of choke really...
The engine also dies at slow speeds/when at a stop, off throttle - does this constantly whilst running up to temp and at temp. The problems are all intermitent but happen either all together or one or the other on every run.
We originally put it down to teh cold weather and having an engine that just plain does not like the cold. However today when driving and getting it up to temp it still carried on..... Been mulling it over with the ol' man and we were thinking about maybe its not breating properly.
QUestion is how does a RV8 out of a Rover P6 breath....it has a breather pipe out the back of the engine and two ports on teh rocker covers. At present none are plumbed in to the air filter but my ol' mans RV8 has them all plumbed into the air filter....could this make that bigger difference?
Also any other things to check would be great!!
Also changed the plugs recently with no change, and fitted a regulator as at the beginning we thought it was too rich now regulated at 5psi and pssibly thinkin now its too lean!
Help, and thanks in advance