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Old 05-29-2007, 01:00 PM   #41
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Quote:
Originally Posted by jayc72 View Post
I think you are making a big deal over the PCV "issue", routing the PCV into the intake pre-turbo is not a miracle cure. I'd suggest that he properly try to diagnose the problem he is having before using the shotgun approach.
It's not the "shotgun approach," it's the "build-a-turbo-setup-correctly-the-first-time" approach.
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Old 05-29-2007, 01:30 PM   #42
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WoW!
Just trying to buy a bit of time (I hope).......
I've got properly drained oil line & correctly routed pvc. Haven't had a problem till now....somethings changed? (for the worse) I'll be doing a leak down test shortly, hope this will pinpoint the problem. I'm not sure if I'd want to spend a lot of money on parts on this engine when you can sometimes source a used engine for lil' money.
Peace
Mike
http://www.cardomain.com/ride/179116
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Old 05-29-2007, 02:24 PM   #43
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easiest thing to do right now is just plain test the new PCV...
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Old 05-29-2007, 06:20 PM   #44
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Originally Posted by Brian View Post
It's not the "shotgun approach," it's the "build-a-turbo-setup-correctly-the-first-time" approach.
While the PCV routing pre-turbo may be correct, it isn't the solution to this problem. The only thing being accomplished by the pre-turbo routing would be to dump a pile of oil into the intake. Wonder how the turbo would enjoy sucking in fluid at the rate it sounds like this guy is losing it?
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Old 05-29-2007, 06:23 PM   #45
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How do you know? He hasn't had the leak-down test, and he currently doesn't have his PCV breather routed correctly.

That's really all we know at this point.
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Old 05-29-2007, 06:31 PM   #46
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You are right, I don't know for sure. However ....

Quote:
I checked it out today, and he has a diaper around his filter on the cam cover. It's alot of oil
The amount of oil described here would indicate a pretty serious problem.

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correctly routed pvc
And I assume he has now routed it correctly and still having the problem.

I would conclude it is something other than the PCV routing.
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Old 06-03-2007, 10:22 AM   #47
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UPDATE:

Well, got a day off to take the head off. Before I did that, compression test showed 120/92/95/150. Head came off the block with no problem once the bolts were out it just slid off? Expected it to be stuck somewhat? Gasket looked to be in good shape, valves looked good?
Well, here's the bad part, the back piston (firewall) edge had eroded (melted).
Also found oil in the intake side of the turbo, now i'm wondering if the oil seal let go on that as well?
Mike
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Old 06-03-2007, 03:19 PM   #48
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no, because your were letting compression past the rings, and that positve pressure was blowing oil into intake VIA the breather port.

examine the intake more closely you'll see that was the source of the oil, not the turbo.
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Old 06-03-2007, 03:55 PM   #49
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Remember I posted that I had a breather on where the hose would have previously vented into the intake? There was no hose plumbed into the intake, vented to atmoshere.......? This is why I'm concerned that I spotted the oil on the filter end of the compressor?
TIA
Mike
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Old 06-03-2007, 05:27 PM   #50
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positve pressure in the crankcase means postive pressure in the oil return line....could be backing things up...do one thing at a time.
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Old 06-03-2007, 06:06 PM   #51
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+1 if there is no venting whatsoever sometimes drainage will blow past to sealing oring on the compressor listen to Scot and the others this is not there first time seeing this problem.
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Old 06-03-2007, 08:02 PM   #52
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For the life of me I couldn't understand how oil could have gotten in the intake, as I mentioned I didn't have a vent tube routed into the intake. HST, I never thought about the case pressure blowing back into the oil return line? That would make sense?
TIA
Mike

Last edited by mracer; 06-03-2007 at 11:49 PM. Reason: Doh!
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Old 06-03-2007, 09:14 PM   #53
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So ya, rings?
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Old 06-03-2007, 09:54 PM   #54
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I'm sure you can source an engine for cheap, but nows your chance to get forged stuff...hehe. I've seen 1.6's sell for under $300. If you need tips on shipping large stuff, give me a call, unless your able to source one from Canada. Burnt piston!? You must of been knocking bad.
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Old 06-04-2007, 12:18 AM   #55
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lol... what u gotta do is... weld a bung or something onto your exhuast and then run a line to that bung off the head filter where u hada your filter on... that was it creates vaccumm from the exhaust ...and oil that gets blown by just gets burnt off in your exhaust instead of lowering the octane of your gas and creating harmful knock...

just kidding...but damn i would do it. lol lol
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Old 06-04-2007, 09:56 AM   #56
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people do that all the time...
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Old 06-04-2007, 11:32 AM   #57
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people do that all the time...
wow..if you're serious... that's just crazy... i never would have known....
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Old 06-04-2007, 11:37 AM   #58
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cant use a bung, must be a slash cut rod and the angle against the flow of exhaust

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Old 07-12-2007, 11:45 PM   #59
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OKay, quick update.....
Got the pistons out, of course, for all the well known reason of making our engine RWD, #4 piston looked the worse. All 4 pistons have broken top lands. #4 bore had some slight scuffing, the other 3 looked pristeen. Brgs. looked good. Gonna look into getting some low compression Wiseco's.
Mike
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Old 07-13-2007, 12:19 AM   #60
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cool...I'd go for belfab, they have GREAT deals on pistons and rods.

haha take a look at my piston ;-)
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