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Australian Falcons Discuss the australian born and bred models here. Includes the 80's 90's and present day Falcons offered by Ford Oz.

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Old 04-14-2004, 23:24   #1 (permalink)
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Results from Compression Test

Hi guys,

Had my new '94 EF Falcon serviced today and got a compression test done while they were at it. When I picked my car up my mechanic had gone out so I didn't get the chance to ask him about my compression test results, I'm just wondering if I could get some comments on the results :)

Cylinder 1. 125psi
Cylinder 2. 100psi
Cylinder 3. 100psi
Cylinder 4. 115psi
Cylinder 5. 110psi
Cylinder 6. 105psi

Thanks for all your comments,

Nick.
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Old 04-14-2004, 23:28   #2 (permalink)
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Re: Results from Compression Test

The variation is normal and acceptable. I can't however comment on the actual absolute figures as I only know what my figures were on the 8.
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Old 04-14-2004, 23:44   #3 (permalink)
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Re: Results from Compression Test

Quote:
Originally Posted by wildturkey
Cylinder 1. 125psi
Cylinder 2. 100psi
Cylinder 3. 100psi
Cylinder 4. 115psi
Cylinder 5. 110psi
Cylinder 6. 105psi
just me or are all those bit below average? i did a compression test on my xb 250 non x-flow and all were around 150psi. dunno if the e-series run lower compression or not
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Old 04-14-2004, 23:46   #4 (permalink)
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Re: Results from Compression Test

Yeah I would have taken a stab and said that they sounded a little low. My windsor ranged from 160psi to 175psi from memory. I'm assuming that this was a dry compression test?
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Old 04-14-2004, 23:49   #5 (permalink)
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Re: Results from Compression Test

Yeah they sound low to me i would have thought above 140-145 at least but they are fairly contant tho.
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Old 04-15-2004, 01:43   #6 (permalink)
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Re: Results from Compression Test

Quote:
Originally Posted by !Gn|T|0n
I'm assuming that this was a dry compression test?
Ummm i have no idea :)
My mechanic rang me a little while ago to give me the run down on the service and to apologise for not being there, he said around 105psi is the norm, also said I picked up a little gem too :)
Got a new surge/overflow tank for no charge aswell because mine was leaking air around the cap and I happened to give him a carton for some weekend work he did for me on my old car :)

Nick.
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Old 04-15-2004, 08:44   #7 (permalink)
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Re: Results from Compression Test

yea depends on what tester they are using there are different ones that give different readings.. I got one done on my ef and got 115 for every one then got it done when my cvar got serviced 3 days after and got 190 for every one... best bet is to ask mechanic that did the test ... (which u have done )
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Old 04-15-2004, 10:46   #8 (permalink)
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Re: Results from Compression Test

Basically as long as they're even it's OK.
100 range is probably a little low, but not too bad in my experience.
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Old 04-15-2004, 14:24   #9 (permalink)
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Re: Results from Compression Test

The pressure tester I used was "snap-on" brand.
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