Saturday morning I decided to have a minor clear up around the ramp
then this happened in the afternoon.
i had a quick look at the stock dmf, which is completely shot.
It moves about 10mm with out any resistance and has 1-2mm side play.
Hears a better pic of what I was saying about the possible interference on the 36-1 trigger wheel and what’s behind it.
today I whipped the auxiliaries off and mounted the engine on a engine stand.
It makes it so much easier to work round. So I got the head off, nothing looking out of the ordinary here but I’ll revisit it later at some point for a more in-depth look.
Popped piston and rod 1 out. Looking good so far, next to no wear on it the bigend shells.
however the oil control rings seem to have seized, most likely due to being sat there for the last 6months. Not a problem though a clean up and refit will sort them out.
the bores look in good condition with no feel-able step on the top compression ring.
The only way to really tell is to measure them with a dial bore gauge.
So that’s exactly what I did. Bearing in mind the his engine has nearly 80k miles on it.
this shows that bore has a deviation of 0.005mm or 0.00019” from top to bottom.
I’m not sure what the zetec specs are but generally for a rehone 0.025mm/0.001” would be an acceptable tolerance.
i also measured where the top compression ring sits at TDC as this is a high wear area.
0.01mm/0.00039 well within acceptable to me even if it was freshly honed.
i measured a few other bores and the had even less deviation so I think this should be a bloody good engine. I’ll most likely clean it up re gap the rings and throw it back together with some ARP goodness to try and hold it in shape.
On another note some paint turned up, so I thought I’d brush on a small test patch to get a idea of what’s to come later on.
