CYLINDER COMPRESSION

1998 Ford Cobra

Tiny

smrod71

May, 3, 2009 AT 8:48 PM

Engine Mechanical problem
1998 Ford Cobra V8 Two Wheel Drive Manual 50000 miles

I recently bought a used 1998 cobra mustang 4.6 dohc. The seler told me the engine was rebuilt. I would like to know what the compression test result should be for good cylinder compression, stock. Seller wasnt sure if the compression ration had been dropped or raised.

FOUND 202 RELATED QUESTIONS

Compression Test

7 ANSWERS
1 IMAGE

1 Answer

Tiny

hmac300

December, 17, 2009 AT 7:04 PM

You won't be able to tell compression ratio by a compression test. But if your compression is around 120-150 p.S.I. You should be ok. Make sure you do it correctly and there shouldn't be a 20% variance between cylinders.

Please login or register to post a reply.

Engine Cylinder Compression Test - All Cars
Replacing Head Gasket
Engine Oil Change and Filter Toyota Corolla