That's two minutes of each day accounted for then, Kev!!! :eek:

No wonder why i can't see

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Look at your plug wire routing, cross fire is a long shot but easy to check. Also pull fuel filter to see if it's starting to plug.

Have you confirmed you have the right firing order?

And gotta love those power probes... I keep one in my trunk for long trips...

Hey guys,

Well stupid question is how could I get cross firing and how should the spark plug wires be routed?

I'm 99% sure firing order is correct. It's tattooed into my brain 1-6-2-4-3-5,counter clockwise. And when I tested the wires for resistance I did them 1 by 1.

The wires should be separated and not rubbing on each other. I doubt that is your problem because you said it ran ok before but you never know. Also check the coil, was it new when you rebuilt the engine?

Rich have you had any luck finding the problem?

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I doubt this is your issue, but this is a sneaky way to keep plug wires separated using wire ties.

http://forums.pelicanparts.com/uploa...1497264925.jpg

Sorry guys didn't get to the car this weekend.

I had on 4x4 on my deck that needed replacing because it was literally rotted through. I was going to replace it on Saturday morning then work on the car. Unfortunately the 4x4 was only the beginning and I ended up building a whole deck (oversized landing) ov r the weekend. So no time to work on the car��

You swapped resistor plugs so now you have more resistance. If you got the boschs already try them or you could try non-resistance rotor. I could not find any for sale so I made one DIY by soldering a wire in between the center and outer leads.

I found some time to dig some more into this.

I checked for spark, and all six cylinders have spark. I didn't have an extra person to crank it so I videoed it in slow-mo with the iPhone, which worked out pretty well. You can see the #3 spark here. Jump to 0:32 to see the action, sorry forgot to trim the video. The sound is pretty awful so don't have your speakers turned way up!

<iframe width="560" height="315" src="https://www.youtube.com/embed/WNp1SyFNi7c" frameborder="0" allowfullscreen></iframe>

I also checked for fuel flow to the injectors. I do have fuel getting to the injectors, and it seemed to be fairly even across all cylinders. With how high a pressure is needed to crack the injectors open I thought the fuel would come out of the fuel line with some serious force, but it was more akin to a faucet open about half way. I guess the pressure comes from the narrowing at the injector.

Does anyone have any suggestions for checking the spray pattern and flow out of the injectors. I had a challenging time catching the fuel flow, and I can't quite picture how to get the injectors inside a canister that catches the fuel and allows me to see what is happening.

Also boosted79 suggested checking fuel filters. I assume this means the filter at the base of the gas tank. Is it possible to check the main fuel filter that I just put in the car during the rebuild? I'll have to drain the tank to check the filter on the tank.

I tried to check for air leaks visually. I might have an issue with the intercooler connecting to the intake. The intercooler was a modded 3.0L garrett unit and it may not be fitting tight enough. My only problem with this thesis is that the car shouldn't have run well from the get go, but it was running well with the intercooler on it for a while.

I'm getting a lesson on becoming an actual mechanic and testing and checking things, but damn I want to be getting some driving time in.

"Does anyone have any suggestions for checking the spray pattern and flow out of the injectors. I had a challenging time catching the fuel flow, and I can't quite picture how to get the injectors inside a canister that catches the fuel and allows me to see what is happening."

I used the baby bottle method. One injector in each bottle shows spray pattern and quantity from each injector, couldn't find a pic but it worked for me when I checked and cleaned mine.

im going back to the plug wires crossed.

I did that once on my 930 and it sounded EXCACTLY like that.
this very low compression engine and at idle a crossed wire will sound like that.

I always think #5 is #4 for some reason.
if you have to, remove them all completely and install one at a time.

you might also check compression.

checking injectors is a major pain because of the lines.
I would be more concerned about volume than pattern,. with the correct volume a bad pattern will sound much better than that.
check for leaking injector
check fuel flow and what would be simulated idle.
I put a battery charger on my battery and ran my idle test for about 10min. fuel flow is very low and the more you collect the better the result.
then do a WOT test for volume.
the idle test is much better than WOT. if you have an injector that is reluctant to open it will show at the idle test.

one other thing.
look for fuel leaks at the fuel line connections. they will make it run like that too. check at the FD and injectors.

Thanks for the baby bottle suggestion!

I'll recheck firing order. It's been completely apart and back together a few times since the video and no improvement, but I'll remove and reinstall.

I don't have a compression tester. I did check leakdown which came back fine.

Yeah the fuel lines are very challenging to move. I have the beefier early fuel lines in my car as well, which only adds to the challenge.

Just to add to the confusion, or maybe help, before checking for spark. I naturally pulled the fuel pump relays. When I went to check the 1st plug the damn car started and ran for a little while with no fuel going to the engine.

Checked the compression and got 120-125 on all 6.

Then pulled injectors and tested them with carb cleaner. All of them came back great until I got to cylinder #5 which wouldn't open under low pressure, and had a stream of fuel under high pressure (no atomization).

Replaced #5 injector and we are back in business baby!


<div style="position:relative;height:0;padding-bottom:56.25%"><iframe src="https://www.youtube.com/embed/nAR6T-n9pr0?ecver=2" width="640" height="360" frameborder="0" style="position:absolute;width:100%;height:100%;le ft:0" allowfullscreen></iframe></div>

^^^

Nice sleuthing, Rich, and . . .



???

!!!

:eek:

Thanks! Only took me about 4 months. Roll eyes.

still need to take it out on a trip and make sure it's 100% back.

Rich thats freekin rad dude.Best news i have had in a long time.Now go drive that mother.

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Thanks kevin. Gotta admit it made me pretty damn happy too!