Weird firing problem

[kingmick]

[QUOTE=whatthe?]Nope, fraid not, compression tested it after replacing starter this morning, not one iota of pressure in cyl 4, wouldnt even move the needle on the tester. I guess I'm probably looking at a holed piston Lucky I have a set sitting in the garage but it's a pain in the ass of a job. Ah well, thats what weekends are for isnt it? [/QUOTE

thats a hole different problem!lol
nice set of forgies and back into it.bit of a pain mate.

[ViPeR_NiPPleX]

i can't wait to see a pic of this piston i wonder what caused it exactly?

[sw20r]

Mate saw you wednesday night, I was in the black MR2 i only had 2 runs.. I've got the same problem except mine started to stall if i didnt bring the revs up. Im putting it down to ignition/ecu which im swapping over in the next few weeks.

[whatthe?]

i can't wait to see a pic of this piston i wonder what caused it exactly?

Im going to go with fucking around with my tune to try and milk as much out of it as possible . I was running it uber lean through the midrange and also a little more advanced timing in the top end than I probably should have been

The new autronic will stop me from being able to screw around with things as easily as fiddling with dials and buttons

[whatthe?]

Oh, and I just want to go on record as saying that a properly prepared and fitted standard HG on a 7M is obviously good enough (or at least better than standard pistons ) cause it never even complained once about the abuse it copped

[sw20r]

pm me more info on where your getting this done :d

[kingmick]

Oh, and I just want to go on record as saying that a properly prepared and fitted standard HG on a 7M is obviously good enough (or at least better than standard pistons ) cause it never even complained once about the abuse it copped

set of forgies,good head gasket and the autronic should see some good times! im surprised your dipstick didnt get blown up with the blowby. would have smoked a bit aswell.

[whatthe?]

Oh, there's a serious engine being built, have no fear of that This one was supposed to last another 3 weeks but meh, whatcha gonna do?

[kingmick]

Oh, there's a serious engine being built, have no fear of that This one was supposed to last another 3 weeks but meh, whatcha gonna do?

very cool! so your putting a 2j in then! hahahaha just kidding. waiting is the hard part!

[CrUZida]

As kingmick said, I'm surprised you haven't got all the other obvious signs of a hole in a piston (like a seriously pressurised sump).

I'd be checking the valve train, I'm thinking either the inlet or exhaust valve is suck open/stuffed.

[YelloRolla]

i can't wait to see a pic of this piston i wonder what caused it exactly?

My money is on a cracked ring land.