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My NFE FPS ‘45
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captaindana View Drop Down
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Joined: 14 Sep 2009
Location: Fort Plain, NY
Points: 2573 		Post Options Post Options   Thanks (0) Thanks(0)   Quote captaindana Quote  Post ReplyReply Direct Link To This Post Topic: My NFE FPS ‘45
    Posted: 15 Jan 2023 at 5:07pm
Hey my friends I took a ride instead of shop work today, bought anotherHD bench for my new heated shop too. I did take a few minutes while bullying the new to me bench through the doors and ran a compression test on her.   Every cyl shot the gauge to between 145 and 150 psi which I’m confused as I didn’t think they should be that high? Is this kosher? Enjoy every day. Dana
Blue Skies and Tail Winds
                          Dana
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Gary View Drop Down
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Joined: 13 Sep 2009
Location: Peterborough,On
Points: 5902 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2023 at 5:26pm

   while bullying the new to me bench through the doors and ran a compression test on her.

That's a new one on me !

How do you run a Compression Test on a HD Bench?

Take FEL and push the Bench up against a wall?

   Any pictures ?

G



           ------- L O L -------
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IBWD MIke View Drop Down
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Joined: 08 Apr 2012
Location: Newton Ia.
Points: 4105 		Post Options Post Options   Thanks (0) Thanks(0)   Quote IBWD MIke Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2023 at 5:26pm
145 is about spot on for M&W pistons. Got an engine kit from Tony years back, it makes about 150.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22049 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2023 at 5:53pm
Or OEM D-17 4 inch bore pistons are 145 psi.
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WF owner View Drop Down
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Joined: 12 May 2013
Location: Bombay NY
Points: 5041 		Post Options Post Options   Thanks (0) Thanks(0)   Quote WF owner Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2023 at 7:05pm
If you stick a borescope camera in the cylinder, you would be sure what you have for pistons.
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