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What should the compression test number be for a 1991 B230…

What should the compression...

What should the compression test number be for a 1991 B230 engine be?

Mechanic's Assistant: How many miles are on the car? Is it an automatic or a manual transmission?

Automatic 80,000 mi

Mechanic's Assistant: Are you fixing your 80 yourself? What have you tried so far?

I am trying to determine condition prior to purchase

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Answered in 4 minutes by:
3/20/2018
internal88
internal88, Mechanic
Category: Volvo
Satisfied Customers: 2,696
Experience: I've been working on Import and European vehicles for 15 years. Diagnostic is my specialty.
Verified

Hello, and thank you for your question. I am Brandon.

Here is the engine compression reference.

Min value 0.9 MPa (128 psi)

Max difference 0.2 MPa (28 psi)

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Customer reply replied 1 month ago
what is the number on a new engine?

128 psi

internal88
internal88, Mechanic
Category: Volvo
Satisfied Customers: 2,696
Experience: I've been working on Import and European vehicles for 15 years. Diagnostic is my specialty.
Verified
internal88 and 87 other Volvo Specialists are ready to help you
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Customer reply replied 18 days ago
Your answer is completely erroneous. The actual compression test number is ***** Yes the engine is stock and no there is no carbon buildup. A refund is in order as the answer was of no value

128 psi that I gave you is the minimum value. Your result is in the normal range.

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Customer reply replied 17 days ago
I also asked what the number should be on a new engine to which you also replied 128psi which can't be correct. A drop from 195/200psi to 128psi would in fact show an engine that was in serious need of overhaul!
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internal88
internal88
internal88, Mechanic
Category: Volvo
Satisfied Customers: 2,696
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Experience: I've been working on Import and European vehicles for 15 years. Diagnostic is my specialty.

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