A brief update on the rebuilt 2.7S with older Megasquirt ECU.......this has turned into a bit of an exploratory surgery.......After installing the custom intake that came with this engine, I proceeded with a cold leak-down test, to get a baseline.....results were very mixed with some good and two very bad leakers...well, it had been sitting around for a couple of years, so I decided to fire it up and see if it would improve......fired it up and .....it sounded like ball bearings in a blender....shut it down fast....
It sounded like a tensioner had failed, so i checked the tensioners...very nice, new, tight chains and tensioners....hmmm. Next, check the rocker adjustments.....remember, this is a rebuilt engine. It should all be good,,,,,but, here's what was causing the racket.....
#5 intake and #4 & #5 exhaust rocker adjusters were completely backed off....with the nuts sitting at the end of the adjust screw...as if they were ready to be adjusted, but somehow missed before final assembly......
It's mo betta now and this time, the fire up didn't sound like total destruction waiting to happen...