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Old 03-02-2014, 02:43 PM   #301
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Quote:
Originally Posted by 18psi View Post
Thanks all, will do. I will yank spare crank and cam sensor out of a known running car and try again with a 3rd set of cam/crank sensor.
The cam I'm using is EO2K's cam, so we can rule that out. Timing is set correctly, so that's out. The wiring is completely unmolested, so that's out too.
Unmolested does not mean intact.

Maybe someone will be nice and post a screen shot of your composite log.

Did you double verify that your crank trigger wheel is installed in the correct orientation?
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Old 03-02-2014, 04:32 PM   #302
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Old 03-02-2014, 04:45 PM   #303
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Sorry I suck at composite logs: what looks wrong in that picture to yoiu?
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Old 03-02-2014, 05:03 PM   #304
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The green lines should be a little more to the left relative to the blue lines.
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Old 03-02-2014, 05:07 PM   #305
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so they're too advanced?

*edit:
for reference: with my original cam



vs now with EO's cam


Last edited by 18psi; 03-02-2014 at 05:19 PM.
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Old 03-02-2014, 05:41 PM   #306
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This is starting to look more and more like a reversed crank trigger wheel.
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Old 03-02-2014, 06:21 PM   #307
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Old 03-02-2014, 06:24 PM   #308
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Quote:
Originally Posted by Chiburbian View Post
Reverant, I posted my 01' VVT logs earlier in the thread to compare against... Are there any logs that I can provide that might help? Under any specific conditions?
Get me a log taken while cranking with the OCV unplugged please -- then post a screen shot like my previous post.
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Old 03-02-2014, 06:27 PM   #309
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Originally Posted by Reverant View Post
This is starting to look more and more like a reversed crank trigger wheel.
+1
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Old 03-02-2014, 06:47 PM   #310
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Please put the crank at TDC. Then take off both AC/PS and alternator belt and then take off the big pulley. Leave the 4 tooth timing wheel on the little peg that is there to line it up. Take a picture of the 4 tooth timing wheel so we can compare it to this image.
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Old 03-02-2014, 07:02 PM   #311
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Flipped trigger plate means 90 degrees off, which can be what we are seeing in the composite log.

But why did it start in the beginning?
Could the cam be so advanced that it synced in the beginning and then failed when the cam retarded a bit?
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Old 03-02-2014, 10:32 PM   #312
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Just did it right now. Its exactly like that image.

I can "flip" the timing wheel, but its pretty obvious that it doesn't go that way when I tried it before. The way its on now is correct. I even compared it to my original engine
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Old 03-02-2014, 10:34 PM   #313
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Quote:
Originally Posted by 18psi View Post
Just did it right now. Its exactly like that image.

I can "flip" the timing wheel, but its pretty obvious that it doesn't go that way when I tried it before. The way its on now is correct. I even compared it to my original engine
And the top tooth is at 1 o'clock and bottom tooth at 7 o'clock? Or is the top tooth at 11 and bottom at 5?
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Old 03-02-2014, 10:37 PM   #314
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Yep, 1 and 7 and absolutely not 11 and 5
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Old 03-03-2014, 09:09 AM   #315
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Quote:
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Get me a log taken while cranking with the OCV unplugged please -- then post a screen shot like my previous post.
Sorry, I was out of the house by then and wasn't back until late. I will post one when I get home today.
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Old 03-03-2014, 10:18 AM   #316
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Quote:
Originally Posted by NiklasFalk View Post
Flipped trigger plate means 90 degrees off, which can be what we are seeing in the composite log.

But why did it start in the beginning?
Could the cam be so advanced that it synced in the beginning and then failed when the cam retarded a bit?
Forgive my loose thoughts, but it looks like the cam(s) are 1+ teeth retarded.
Just taking my setup as an example, I'm able to get sync and start with the intake cam 13 degrees retarded (due to decking), but would it sync with a little more advance (one tooth is 15.5 and that would probably work)?

If there any chance the timing belt have too many teeth (making the tensioner retard the cams more than it should)?

The cam in the log looks to be 3-4 degrees too retarded to sync, try advancing the cams one tooth and make it start that way?
When running the logs might give more clues what's wrong.

With all the things you have tried so far, trying things outside the box seems to be the next thing.
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Old 03-03-2014, 02:02 PM   #317
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Ok, so advance both cams 1 tooth or just the intake?
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Old 03-03-2014, 02:14 PM   #318
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Ok, so advance both cams 1 tooth or just the intake?
The intake would make it sync and hopefully start. But there is something fishy and doing the exh too would probabaly make sense if if the timing between the cams is correct.

The theory is that the timing belt might be long, or the crank wheel have "slipped".

Testing is knowing. But the list of negative tests to perform can be quite long.
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Old 03-03-2014, 02:56 PM   #319
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Sorry, I was out of the house by then and wasn't back until late. I will post one when I get home today.
Thanks. My car has the FM wheel on it.
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Old 03-03-2014, 02:57 PM   #320
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Ok, so advance both cams 1 tooth or just the intake?
We don't have a sensor on the exh cam, so dunno. But your new composite log looks like your old composite log where your intake cam is a lot more retarded than Chiburbian's.
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