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968 need rings - would you fix it?

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Old 04-16-2010, 07:18 AM
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FRporscheman
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Default 968 need rings - would you fix it?

I'm trying to figure out what to do with my '93. It's a 6-speed coupe, light blue metallic on dark gray interior. 241k miles. Everything is tight and nice on the car except the engine compression is low. Leakdown test numbers are about 85%, 60%, 75%, 85%. I can feel that the car is slow.

I want to sell it. I'm just wondering, should I sell as is, or rebuild the bottom end first then sell it? I'm not sure if the rebuilt engine will raise the value enough to justify the rebuild. Also, a friend told me that since I'd do it myself, that would hurt resale because I'm just a guy, not a certified Porsche tech.

I've rebuilt a 968 motor before and it turned out great...

The head was fully serviced at 236k miles. It's got all new seals, WP, belts, chain, etc. All it needs is the bottom end rebuilt. When I had the head off 5k miles ago, the cylinders looked great.

What do you guys think?
Old 04-16-2010, 07:21 AM
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Rogue_Ant
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Not worth it...
I'll do you a huge favor and take the 968 off your hands for $500, and then you don't have to worry about it anymore
Old 04-16-2010, 09:50 AM
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roman944
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Originally Posted by Rogue_Ant
Not worth it...
I'll do you a huge favor and take the 968 off your hands for $500, and then you don't have to worry about it anymore
$501 + a 12 pack of beer + a dozen doughnuts

but, depends

are you just tired of the car? upgrading? or leaving the scene? I say fix it and keep it
Old 04-16-2010, 10:12 AM
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67King
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$550, a case of beer, and two large pizzas.

You have any idea what a 968 with over 240,000 miles is worth? I'd be linclined to think more in parts than as a whole. I'd either fix it and keep it, or I'd part it out. I don't think you'd stand to gain much by fixing it and selling it. That is even more true if you are paying someone else to do the labor (so I guess I'd say I disagree with your friend - you'd raise the value by fixing the compression, but not to the point of a
"certified" rebuild, which wouldn't come close to paying for itself).
Old 04-16-2010, 11:06 AM
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PorscheDude1
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You've had the car for awhile and enjoyed it. I'd say you'd get more cash out of it by parting it. Even with a freshened engine, with 240k miles, I'd think it be a tough sell in this economy.
Old 04-16-2010, 11:21 AM
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The bores looked great when the head was done? Can you get to those leakdown numbers without some scuffing or scratches?

The chassis is not very valuable at that mileage except to a racer or maybe a V8 swap enthusiast. If you felt like keeping it, either do the rings or get a decent bottom end in there and drive it some more.

-Joel.
Old 04-16-2010, 01:42 PM
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V2Rocket
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full rebuild!
Old 04-16-2010, 01:49 PM
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carlege
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you thinking of selling the car as whole?
Old 04-16-2010, 04:26 PM
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If it's to sell --- not worth the money. It's hard enough to sell high-mileage car in perfect condition because people shy away from the miles.

It might be worth the time to rebuild to drive the car yourself. The shell would still be great to build a track car or something....
Old 04-16-2010, 07:31 PM
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V2Rocket
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how much would you want for the tired old motor if you were to part with it and do say a vr6 swap like yoyuve been talking about for so long?
Old 04-16-2010, 08:13 PM
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944Ross
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Originally Posted by Jfrahm
The bores looked great when the head was done? Can you get to those leakdown numbers without some scuffing or scratches?

-Joel.

That was my reaction too; high leakage numbers like that are usually valve related. Really worn rings still seal well enough at zero RPM, just leak thru the gap. Did a teaspoon of oil improve the numbers?

BTW, JCWhitney sells motor overhaul pellets for $25 ....
Old 04-16-2010, 09:39 PM
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J Berk
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Originally Posted by 944Ross
That was my reaction too; high leakage numbers like that are usually valve related. Really worn rings still seal well enough at zero RPM, just leak thru the gap. Did a teaspoon of oil improve the numbers?

BTW, JCWhitney sells motor overhaul pellets for $25 ....
Aren't those the little blue pills for your motor?
Old 04-17-2010, 03:21 AM
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V2Rocket
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arash

theres a guy in malibu selling a set of new goetze pistons rings for the 3.0L (he says S2) for $100
http://losangeles.craigslist.org/wst...691405875.html
Old 04-17-2010, 03:57 AM
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sell the 3.0 and pop a 2.5T stocker in it.
Old 04-17-2010, 04:59 AM
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Originally Posted by carlege
you thinking of selling the car as whole?
Yeah, it would just kill me to part out this car. It's 1 of about 40 made in this color.

Originally Posted by V2Rocket_aka944
how much would you want for the tired old motor if you were to part with it and do say a vr6 swap like yoyuve been talking about for so long?
I turned my back on the vr6. After dealing with my brother's two vr6 cars, and countless vr6s at work, I now hate that motor.

Originally Posted by Matt Sheppard
sell the 3.0 and pop a 2.5T stocker in it.
This was my plan exactly. You must be quoting an older post of mine!

Originally Posted by roman944
$501 + a 12 pack of beer + a dozen doughnuts

but, depends

are you just tired of the car? upgrading? or leaving the scene? I say fix it and keep it
I missed the car of my dreams last year, a solid blue 968. My plan now is to sell this one and buy a black one that I can repaint solid blue. If that plan falls through, I will continue playing with my new obsession, Audi, and leave the Porsche scene for a while. The only thing I now for sure...

I don't like this color (Horizon Blue Metallic).


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