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Top 2GNT Technical Turbo/Nitrous Tech topic #32225
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Subject: "Compression and Piston Rings." Previous topic | Next topic
toykillaOct-04-02 07:47 AM
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#32225, "Compression and Piston Rings."




          

How low could your compression be with just bad piston rings? I'm having massive blow-by and tons of blue smoke but only when I get on it. Compression hendered 1-4...180-180-60-180. Could that just be the rings or something else as well?? The car runs just find except for the fact that i'm smoking (blue) and the excessive blow-by.

Robert Parkhurst
toykilla@comcast.net

  

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Replies to this topic
RE: Compression and Piston Rings., BoostedGS, Oct-04-02 07:57 AM, #1
RE: Compression and Piston Rings., mcgyvr, Oct-04-02 07:58 AM, #2
RE: Compression and Piston Rings., toykilla, Oct-04-02 09:06 AM, #3
      RE: Compression and Piston Rings., Global Ruler Of All ThingsDarkOne, Oct-04-02 09:22 AM, #4
           RE: Compression and Piston Rings., toykilla, Oct-04-02 01:53 PM, #5
                RE: Compression and Piston Rings., 420aVenger, Oct-04-02 01:56 PM, #6
                     RE: Compression and Piston Rings., RxR_Eclipse, Oct-05-02 01:10 AM, #7
                          RE: Compression and Piston Rings., Dave_FL, Oct-05-02 04:14 AM, #8
RE: Compression and Piston Rings., Avenger EST, Oct-06-02 01:07 PM, #9
RE: Compression and Piston Rings., toykilla, Oct-06-02 06:38 PM, #10
      RE: Compression and Piston Rings., HadesOmega, Oct-07-02 07:54 PM, #11
           RE: Compression and Piston Rings., toykilla, Oct-08-02 09:12 AM, #12

BoostedGSOct-04-02 07:57 AM
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#32226, "RE: Compression and Piston Rings."
In response to Reply # 0


          

Sounds like a bad ring to me, or possibly a broken piston land.



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mcgyvrOct-04-02 07:58 AM
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#32227, "RE: Compression and Piston Rings."
In response to Reply # 0


          

yep sounds like rings but could also be a bad/bent valve but its prob not. that is typical blown 3rd cyl ring, sorry emoji

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

  

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toykillaOct-04-02 09:06 AM
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#32228, "RE: Compression and Piston Rings."
In response to Reply # 2




          

So the rings could cause compression to be that low? Good, that's what I thought. Ordered rings earlier, they should be installed on Monday.

Robert Parkhurst
toykilla@comcast.net

  

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Global Ruler Of All ThingsDarkOneOct-04-02 09:22 AM
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#32229, "RE: Compression and Piston Rings."
In response to Reply # 3




          

it's never the rings on a turbocharged car. Rings don't fail. You broke a piston.

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toykillaOct-04-02 01:53 PM
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#32230, "RE: Compression and Piston Rings."
In response to Reply # 4




          

>it's never the rings on a turbocharged car. Rings don't
>fail. You broke a piston.

Rings to fail. Haven't you ever seen a turbocharged (stock) vechicle smoke. Rings...Please don't say rings CAN'T fail. I'm not saying your not right in this instance but they do wear and tear.

Robert Parkhurst
toykilla@comcast.net

  

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420aVengerOct-04-02 01:56 PM
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#32231, "RE: Compression and Piston Rings."
In response to Reply # 5


          

I think he meant on our cars. I've never seen anyone on here that had the rings fail. They always break the ring landings on the pistons.

  

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RxR_EclipseOct-05-02 01:10 AM
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#32232, "RE: Compression and Piston Rings."
In response to Reply # 6


          

Ya Dino is right, you broke a piston. Although I have seen one instance where a guy on the NEON board did have blow rings, Although that cost him a completely new engine, cause the rings dragged along the cyl walls. Not good in either case.
Good news is that you can fix it for minimal cost. Lots of people on this board have xtra pistons laying around.

Kevin
The old:


The new:

  

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Dave_FLOct-05-02 04:14 AM
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#32233, "RE: Compression and Piston Rings."
In response to Reply # 7




          

Cracked piston ring landing. ENOUGH SAID

Dave
05 Ford F150 SuperCrew FX4

  

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Avenger ESTOct-06-02 01:07 PM
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#32234, "RE: Compression and Piston Rings."
In response to Reply # 0


          

>How low could your compression be with just bad piston
>rings? I'm having massive blow-by and tons of blue smoke but
>only when I get on it. Compression hendered
>1-4...180-180-60-180. Could that just be the rings or
>something else as well?? The car runs just find except for
>the fact that i'm smoking (blue) and the excessive blow-by.



dude......your #3 "piston" is "dead". time to buy some new pistons and sone new rings, and probably some new bearings.

A.D.P.
"...If you do too much, people become dependant. If you do to little, people loose hope. If you do it right, people won't be sure you've done anything at all."
bring it on............

A.D.P.
"...If you do too much, people become dependant. If you do to little, people loose hope. If you do it right, people won't be sure you've done anything at all."
bring it on...........

  

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toykillaOct-06-02 06:38 PM
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#32235, "RE: Compression and Piston Rings."
In response to Reply # 9




          

Already ordering piston rings. They will be here tomorrow. Once I get the pistons out i'll check um out. If #3 is gone then i'm sending back the rings and getting re-build kit. Might as well while the engine is apart. Also, rings+pistons are like $600. Might as well throw another $400 on that and get everything. I will be selling this engine after all this is done to it also. I have my heart set on the 2.2L stroker that Howell has. I'll let everyone know how things go tomorrow.

Robert Parkhurst
toykilla@comcast.net

  

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HadesOmegaOct-07-02 07:54 PM
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#32236, "RE: Compression and Piston Rings."
In response to Reply # 10


          

wow I guess I'm fortunate I got consistent compression and no smoke and no oil emoji Did you do a wet test? Too bad 180 is still pretty good, why does it only have to be one cylinder emoji


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toykillaOct-08-02 09:12 AM
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#32237, "RE: Compression and Piston Rings."
In response to Reply # 11




          

Unfortunately, Dino was right. Piston #3 is gone. Oh well, I guess it's time for a rebuild. Luckily, i'm leaving for Canada tomorrow and will be gone for a week so I don't have to be stuck without a car while I wait for rebuild kit.

Robert Parkhurst
toykilla@comcast.net

  

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