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Blew out the dipstick?

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Old Jul 2, 2003 | 09:06 AM
  #1  
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Default Blew out the dipstick?

As you all know I fixed my leaking oil problem last week. So I had the Hawk out last night for a little meet. I got into her just a little bit to see how she felt. All the sudden white smoke everywhere. I pull over and my dipstick popped out and got oil everywhere!

Now that I have a proper PCV setup, why do I still have crank case ventilation problems? Is lower crank case pressure totally seperate from upper crank case pressure? Am I to assume that now that I'm popping the dipstick that my rings are going bad?

Mike

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Old Jul 2, 2003 | 12:01 PM
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Default Re: Blew out the dipstick?

Do you have a check valve on your pcv line, if not that will cause you to pressurize the crank case. A pcv valve alone will not cut it.

Gary
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Old Jul 2, 2003 | 01:05 PM
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Default Re: Blew out the dipstick?

Either that or you broke a ringland...but it would be missing.
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Old Jul 2, 2003 | 01:17 PM
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Default Re: Blew out the dipstick?

OK, I don't have a check valve instaled on my PCV line. Could you explain how the check vlave will aleviate the dipstick problem?

Also I am missing up top. I thought it was spark blowout. It's very spiratic, sometimes it's there, sometimes it's not. I can't get into her often cause my fuel pump is weak and leaning me out under boost. So I can't keep going WOT to try and figure out a pattern to the spark blow(or miss or whatever it is).

Thanks for your suggestions guys.

Mike
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Old Jul 2, 2003 | 03:17 PM
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Default Re: Blew out the dipstick?

yikes mike, I think you'll need a new bottom end soon.
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Old Jul 2, 2003 | 08:24 PM
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Default Re: Blew out the dipstick?

You need to have check valve in front of the pcv valve. Plus a few other things have to be disconnected and routed differently.

Gary
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Old Jul 3, 2003 | 09:14 AM
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Default Re: Blew out the dipstick?

All the more reason to remove the pcv, slap a tiny breather on each side, cap the remaining port holes, and call it a day.
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Old Jul 5, 2003 | 01:24 PM
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Default Re: Blew out the dipstick?

im assuming thats the way you have it done azz, but do you have any oil blow-by coming out those breathers?
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Old Jul 5, 2003 | 03:35 PM
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Default Re: Blew out the dipstick?

White smoke, (was it more like steam)?. Lean under boost, hopefully JUST a head gasket. Angelo
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Old Jul 6, 2003 | 12:57 AM
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Default Re: Blew out the dipstick?

Betwen the dipstick and the white smoke, doesn't sound good. How're things progressing?
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Old Jul 6, 2003 | 07:06 AM
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Default Re: Blew out the dipstick?

nsupersp0rt, no oil coming out of my breathers. Everytime I check them I expect gooey-ness, but keep getting surprised with nothing. Keeping my fingers crossed.
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Old Jul 6, 2003 | 11:24 AM
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Default Re: Blew out the dipstick?

Betwen the dipstick and the white smoke, doesn't sound good. How're things progressing?
Well the Hawk isn't my daily driver. So It's just been chilling for a while. I bought a compression tester adn will give that a shot to see if anything inside the cylinders looks out of whack.

In my mind, I'm seeing the same things as everyone else, and while I'm hoping it's something not bad, I preparing myself for the bad news. So there's really no rush, cause I certainly don't have the money for a new block right now. So I have to decide am I just gonna not get on it for 6-12 months while I save the money or can I remove the blower and see if there is a dealer that will overlook my fuel system upgrades?

I guess I was nieve to think I could run lean up top and as long as I pulled my timing back enough to eliminate KR, then I was fine. I'm not exactly sure what causes a cracked ring. But I'll do some testing and make sure that is the issue and then start asking questions, how it happened.

Thanks for asking, I'll keep you guys informed.

Mike
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Old Jul 6, 2003 | 12:45 PM
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Default Re: Blew out the dipstick?

seen your problem many times
sorry but you caught a ring land
for some reason been talking to alot of people that are running into that problem and everytime they take it apart its a piston
alot of times #7 is the one
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Old Jul 6, 2003 | 03:26 PM
  #14  
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Default Re: Blew out the dipstick?

Can someone explain to me what they mean by "ring land"? Is that the same as just saying a ring, or is a ring land different from a ring. What is involved in replacing a ring or ring land?

Mike
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Old Jul 7, 2003 | 04:03 AM
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Default Re: Blew out the dipstick?

The ringlands are little 'lips' around the top of the piston that keep the rings in place. The rings go around the top of the piston, but since the piston and bore are almost the exact same size, you couldn't normally fit a ring in between. So a notch is cut around the piston for the ring to sit in. As such, these lips are the weak point.
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Old Jul 7, 2003 | 02:17 PM
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Default Re: Blew out the dipstick?

So what problem would the cracked ringland exhibit? I recently dynoed my car and the car starts stumbling at 8psi, at 7 it seems to be fine. Although I noticed that I'm getting a high # of misfires in cylinder #3 . . . I have changed the plug, swapped wires and coil packs, no dice. Still misfiring.

- Dug
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Old Jul 7, 2003 | 04:48 PM
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From: Lillooet
Default Re: Blew out the dipstick?

A busted ring land would let the compressed air/fuel mix into your crankcase.
Apparently stock LS1 have thin lands as compared to ? Anyone heard this?
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