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Compression on 5000 gas


 
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TN 2N
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Joined: 27 Nov 2013
Posts: 22
Location: Northwest Tennessee

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PostPosted: Wed Sep 13, 2017 5:57 pm    Post subject: Compression on 5000 gas Reply to specific post Reply with quote

I am looking at an older Ford 5000 ( pre '67) gas burner. Want to do a compression test. What numbers would be good/acceptable, dry and wet?
 
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Ultradog MN
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Joined: 22 Apr 2001
Posts: 26337
Location: Twin Cities

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PostPosted: Thu Sep 14, 2017 1:55 am    Post subject: Re: Compression on 5000 gas Reply to specific post Reply with quote

The big Ford manual says 115-150 with max 25 psi variation between cylinders.
Says all plugs out, throttle open, 200
rpm cranking speed.
These would be dry numbers.
The wet/dry test would only be used to determine if a low number was caused by rings or valves and not for determining overall condition of top end.
Good luck on getting it.
 
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TN 2N
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Location: Northwest Tennessee

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PostPosted: Thu Sep 14, 2017 5:44 am    Post subject: Re: Compression on 5000 gas Reply to specific post Reply with quote

Thanks, UD!
 
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