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Compression Problems 

 

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 Post subject: Compression Problems
Posted: Mon Jan 08, 2007 1:36 pm 
Getting Side Ways
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Posts: 1302

Joined: 10th Nov 2006

Location: Allmods suck so do viruses
WA, Australia

What Causes Low Compression
in a EL 1997 Ford Falcon 6 Cylinder 4.0Litre Injected

cheers

 

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Last edited by Falcon96kickass on Mon Jan 08, 2007 1:45 pm, edited 1 time in total.

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Posted: Mon Jan 08, 2007 1:42 pm 
Getting Side Ways
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Age: 33

Posts: 11791

Joined: 5th Nov 2004

Gallery: 13 images

Ride: Holden VF Calais / NL FBT

Location: SE Melb
VIC, Australia

Piston rings wearing, head not being torqued down

Please provide more info with yoru threads - i have removed a number of poor threads and posts by you.

In order to help you people need info on what yoru trying to do, ie model of car, engine, trans problems you have etc
If you do that im sure you will get more replies and people will be able to help you more

 

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Nicko

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Posted: Mon Jan 08, 2007 3:02 pm 
Getting Side Ways
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Age: 38

Posts: 520

Joined: 23rd Dec 2005

Ride: EF Futura Wagon

Location: Toowoomba
QLD, Australia

What is the individual compression readings on each cylinder? Do they improve with the addition of oil?

I just tested my EF with 223,000k's and got 180psi all round +- 2psi. That is an excellent reading. That is very close to new car compression. Anything below 146psi is considered rebuild time for a falcon.

Make sure you test with all plugs out (to speed up rotation) and with throttle at WOT.

cheers
Scott

 

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