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We quickly tested injector 2, and it didn't seem to spray correctly. It wasn't a definitive test at all. But Cylinder 2 melted the plug, so it makes sence that the injector was playing up.

Its frustrating that the engine swap costs as much as the RB20...even though they are cheap you still dont like losing engines. By the time you put an oil flush through, coolant, oil, timing belt and swap over pumps or new pumps....plus your time...it sucks to lose an engine! >_<

not sure yet, still adding it all up, and trying to work out why it leaned out. after i got the exhaust off, it was obvios that cylinder 2 & 5 were lean, as the ports were white, and all the other were black

Weird that it was only two!

I would be sendig the squirters off to be tested ASAP

but hey least you didnt pull your plugs out to find the biggest mystery since the Orient Express.

3 days ago these plugs were oily.

today...rust?!?!?!

lol....I think

post-16947-0-07720300-1323314447_thumb.jpg

After a chat to my tuner tonight, we have come to the conclusion that the plug was the wrong heat range (too hot), and the long pull along the straight overheated it and killed it. The exhaust port was probably clean because the valve was busted and raw e85 was going through the port and cleaing it. I have also discovered that the valves on cylinder 5 wern't seating properly, hence the clean port.

I'll get the injectors checked regardles.

I can either put high comp pistons in my DET engine, this would give me piston oil squirters, and a stronger engine. Or repair the DE head, and replace the piston and rings.

The pistons would cost $1190, and the machining cost is going to be the same either way I go.

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