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Old 07-10-2009, 12:11 AM   #35 (permalink)
Christ
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Join Date: Nov 2008
Location: Troy, Pa.
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Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
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Quote:
Originally Posted by theunchosen View Post
The drive line is now disconnected. I've got the engine strapped to my boom lift and. . .I'll finish taking it out. . .um yeah. I regret having gotten it that far now because its kind of stuck.

I've got a 4AGE silvertop on my engine mount and I don't really wanna put my engine on the ground but thats where its going tomorrow morning.

New pumps arrived. Sorry Mike, I had to skip the piezos this time.

Scavenged a resevoir off a Ford TL tractor ^_^ for the 16 PSI coolant inline.

Pistons. . .supposed to arrive next week -_-.

The good news is I bench tested the injectors. All functioned. Fed them some dirty water and tuned it down. no problems.

The onboard shows the egts started pulsing about 85 seconds before meltdown. So the good news is the engine can survive a little over a minute without the mainstay coolant system. Thats much more promising than I had thought. I was rather confident it would go toast almost instantly without it.

The unpromising. . .worrying thing is I have no indication of what killed the injector. Just that it quit working. Since I have plenty of injectors(had to order a case of 30 or 1 at a time) I'm going to put 2 per cylinder and run them both all the time at half. Only problem is half is right at the bottom of their operation and they don't function properly. So I'll have to step it up a little and keep Michelle away from the sub 500 rpm range. . . -_-.

I think Stevey suggested it but I'm going to tie the injectors to the MAP. Theoretically they will be a step ahead of the engine so even if something goes wrong. . .

As of now I need to be moved to ecomodding central. Well sort of. In essence most ecomods limit engine life. . .this one just limited it alot ^_^. On the other side of the coin Michelle had stock pistons, valves and everything else(mostly) and I haven't checked to see if anything was damaged before the melt down. It will be hard to say since alot of the evidence was more or less. . .melted but who knows.

Christ, at this rate I might have to take you up on your d series pistons in a month ^_^.

I also don't remember who mentioned it but I'll be kicking back to a throttle plate for now. I tried to bite off too much too soon and the Go big or go home bit me in the ass ^_^. That said it should go smoothly from there as I'll be able to get her to speed and then tweak her AFR on level terrain(I've got a couple of roads that have extremely light traffic, are extremely flat and are 4-5 miles long with only moderate turns).

I'll let you know progress as it happens.
Long windedness... jeeze.

Those pistons are here whenever you want them. Not sure what they'll do to your compression, though.

The code is PG6B... you can check the compression for your engine with P29's and just subtract a bit.

You should probably find some steel slugs? I mean, if you keep suffering meltdown, and you never plan on revving the engine too high, maybe some forged steel pistons would do you good, at least buy you more time to shut down in the event of a malfunction. I bet Arias could make them to spec for you. (They're 75mm)

Maybe running the injectors at their low range isn't a good idea... maybe you could run one at full, and have a signal that turns on the other one if the first one fails?

Or even a signal that cuts fuel to that cylinder if the water injection system fails?

I dunno, they're here for you for the cost of shipping (They might fit in a $10 box or something, but they still have rods on them.)
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