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Time for forged bottom end - 50K and #1 lost compression!

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Old Jan 26, 2004 | 11:15 AM
  #1  
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Default Time for forged bottom end - 50K and #1 lost compression!

I just got a call from the dealer telling me that my #1 piston is not showing any compression and that it is causing the "blow-by" problem I related in an earler post. (Oil coming out of dip-stick).
I have an extended warrenty - but I'm not sure what they will cover yet. Does anyone have experience with this - will they just fix the one piston/ring?

I don't feel good about a repair like that - seems if one went then the others might be about ready to do too?

This would be a good time to upgrade to a "forged" bottom end - Crank & pistons.

But if I do that - what part of the cost would a extended warrenty pay?

Car is a 2000 Vert with 50K - not been "abused" - oil changed every 3K!
It has been run hard a few times - but not more than other vettes I'm sure -

Related expereinces anyone?


:cry :(
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Old Jan 26, 2004 | 02:52 PM
  #2  
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Default Re: Time for forged bottom end - 50K and #1 lost compression! (1stGlance)

That is a new one for me. A complete loss of compression would indicate either a bent valve or a significant piston failure. Since you have a blowby problem I would assume the second. The damage in that cylinder could be severe. I would have them pull the head and take a look.

My 98 has over 105,000 miles and quite a few of those on road courses and 1/4 mile at a time. My compression still registers within normal parameters.
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Old Jan 26, 2004 | 02:56 PM
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Default Re: Time for forged bottom end - 50K and #1 lost compression! (1stGlance)

I would let them fix the problem under warranty and drive away.. :yesnod: If it happens again..STROKE IT !! Why spend money when you don't have to.. :rolleyes:
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Old Jan 26, 2004 | 03:00 PM
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Default Re: Time for forged bottom end - 50K and #1 lost compression! (gonbad)

Sorry - my statement was not accurate - I called back and got a more detailed explanation - they tell me the number one cylinder shows 70 # compression - the rest fall between 125 - 135 compression.

Sounds to me like a ring problem. I doubt that they squirted oil in that cylinder and ran the compression again - to see if it jumps up. Used to be (back in the old days) that you could tell if it was a valve or rings by doing that.

Thanks for your input,

:(
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Old Jan 26, 2004 | 03:02 PM
  #5  
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Default Re: Time for forged bottom end - 50K and #1 lost compression! (vstella)

I would let them fix the problem under warranty and drive away.. :yesnod: If it happens again..STROKE IT !! Why spend money when you don't have to.. :rolleyes:
I agree, unless you got the $ to burn and your dying to put in a high horsepower N/A or forced induction application. If not, have them repair your motor under full warranty which should not cost you a dime! :chevy

Good luck and sorry to here about your misfortune. :cheers:
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Old Jan 26, 2004 | 03:15 PM
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Default Re: Time for forged bottom end - 50K and #1 lost compression! (MTI 427 Roadster)

Actually I have been lusting after major mods - but the costs have kept me at bay! :)

The first thing I thought was OK - might as well do it now! If it's coming apart anyway - but then the complexity of who pays for what etc. - I don't need more hassles right now!

If I went that direction I would call LGM and have it trailered over to them to complete the build.

:steering:
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Old Jan 26, 2004 | 05:23 PM
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Default Re: Time for forged bottom end - 50K and #1 lost compression! (1stGlance)

They should cover all the labor for you, but see if you can pay the difference in parts prices for forged rods, pistons, and good fastners etc. I know my dealer would, but they're the exception not the rule.
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Old Jan 26, 2004 | 06:03 PM
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Default Re: Time for forged bottom end - 50K and #1 lost compression! (Cobra4B)

That's what I would prefer - !!

:thumbs:
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Old Jan 26, 2004 | 08:37 PM
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Default Re: Time for forged bottom end - 50K and #1 lost compression! (1stGlance)

Dont forget to do the head bolts as well!! :)

VR :cheers:
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Old Jan 26, 2004 | 08:50 PM
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Default Re: Time for forged bottom end - 50K and #1 lost compression! (vstella)

I would let them fix the problem under warranty and drive away.. :yesnod: If it happens again..STROKE IT !! Why spend money when you don't have to.. :rolleyes:
:iagree:
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