After my polo has had trouble maintaining ticking over when inbetween
hot and cold, and general uneven tickover at every other time, and
many attempts at mucking with the lovely pierburg and ignition, we
decided to adjust the valve clearences.
We discovered that the cam shaft above cylinders 3 and 4 were badly
worn. 3-4mm down approx. So I must presume that the valve followers
are also as badly warn. This looks like it was due to the oil pipe
thing being blocked, which we have now fixed.
Can anyone tell me whether:
1) This would cause the rought tickover
2) If I get the entire head off a scapped car, will a 1l one fit the
1.3 engine.
3) Would it matter if it had hydraulic tappets in? (Mine hasn’t)
As you can guess I dont want to spend much on a car that aint worth
much, but it passed its MOT a few months back no problem (although
they said the tickover was rough, so dunno how they tested the
emmissions) so loath to have to replace it with another banger for
A-to-B driving.
Thanks