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Understanding my Compression Test

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Old 10-06-2015, 01:56 PM
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Understanding my Compression Test

Hello all!
I have a 2006 Rx8 with 132,000 miles on the original engine. I just got my compression test results and they are in the picture. These seem really low for me, but the mechanic said they are in a normal range. The picture quality isn't great but the values should be in KPa. This car isn't my daily and I will probably have to sell it next year. Should these results worry me?
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Old 10-06-2015, 02:06 PM
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Did you do any service on the engine since you bought it ? Generally son the service manual it says that you should do engine rebuild when you hit 6.5 But it depends on the car usually.
When did you changed sparks, wires, etc ?
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Old 10-06-2015, 02:13 PM
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Sparks and wires were changed at the 120k mark according to last owner. I bought the car without doing a compression test (dumb I know). This is just weird because at 300 rpm, these results seem to be failing really badly but a compression test done on the car at 108,000 k miles showed it to be in pretty good condition. I've put only about 300-400 miles since buying it
Old 10-06-2015, 02:20 PM
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Zero Buenos.
Old 10-06-2015, 02:25 PM
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Originally Posted by 9krpmrx8
Zero Buenos.
So am I screwed?
Old 10-06-2015, 02:31 PM
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Originally Posted by Counter_Glockwise
So am I screwed?
Not entirely. Well You have 2 options. Drive till engine will die very badly and basically you'd need new engine or go to the mechanic that would open it. look what is inside and maybe you need only replace parts like
Apex seal Set x 6
Apex seal spring long x 6
Apex seal spring short x 6
Rotor Oil seal set x 4
Outer water seal x 4
Inner water seal x 4
Eccentric shaft oil seal front x 1
Eccentric shaft oil seal rear x 1
Set of through bolt seals
Set of dowel "O" rings
Hoping that other parts are fine. Of course
Old 10-06-2015, 02:32 PM
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The chart doesn't lie, you are well in the red on most of those numbers.
Old 10-06-2015, 02:34 PM
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TX

Originally Posted by Counter_Glockwise
So am I screwed?

That depends on your outlook on life. Do you need an engine rebuild and will that cost you a few grand? Yes.

But as far as life's problems go this is nothing. It's just money man, you can't take it with you when you die.
Old 10-06-2015, 03:29 PM
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Oh boy. Guess I start saving. Hopefully I can get another 5k miles out of this car
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