Compression Test
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Fleet Owner
Joined: Aug 2004
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From: AZ
Mityvac , MVA5605 Diesel Glow Plug Adapter - Ford Navistar 7.3L Power Stroke
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The only thing I can think of is the fitting that goes inbetween the M10 x 1.0 fitting and the grease whip is to long putting the top of the grease whip metal to high. If it was a little shorter then the flexible part of the whip would be where the rocker and push rod is.
Hello Todd, would you take a picture of yours? By the way, what was your compression?
Joey, those numbers are probably a little high, I hope mine are 400+. I've read if your 350+ and 15% of each other, your good but IDK.
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Fleet Owner
Joined: Aug 2004
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From: AZ
Thanks Axel 56.
I think I figured it out. They sold me a wrong fitting making it to tall and putting the metal part of the grease whip to high. This is what I need:
M10-1/8F8OHGS PARKER HANNIFIN CORP. PARM10-1/8F8OHGS CONVERSION ADAPTERM10 X 1/8 NPT PARKER - Marshall E. Campbell Co.
I think I figured it out. They sold me a wrong fitting making it to tall and putting the metal part of the grease whip to high. This is what I need:
M10-1/8F8OHGS PARKER HANNIFIN CORP. PARM10-1/8F8OHGS CONVERSION ADAPTERM10 X 1/8 NPT PARKER - Marshall E. Campbell Co.
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From: Durham NC
The compression gage I used was a steel tube about 3/16 dia. and about 10 inches long then connected to the flex hose and gage.
One end with the o-ring looked like a GP..the other end had a Q-connector
You stuck the GP looking end with the o-ring into the GP hole and run it in finger tight..the other end had a 12 mm nut where the Q-connect fitting was. You gave it 1/4 turn with a wrench.
He did tell me any thing 350 or less was not good.....and any spread between cylinders more than 25 psi was a bad thing too.
One end with the o-ring looked like a GP..the other end had a Q-connector
You stuck the GP looking end with the o-ring into the GP hole and run it in finger tight..the other end had a 12 mm nut where the Q-connect fitting was. You gave it 1/4 turn with a wrench.
He did tell me any thing 350 or less was not good.....and any spread between cylinders more than 25 psi was a bad thing too.
Lead Driver
Joined: Oct 2010
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From: Columbus, Oh
Glenn, I'll go out to the shop and get you a pic here in a bit. The fittings for the GP hole to grease whip where M10 to 1/8npt female to the grease whip. Then 1/8npt female to female and the adapter that came with the kit. Pic in a half hour or so.
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Fleet Owner
Joined: Aug 2004
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From: AZ
You don't have to Todd, what happened is they sold me the wrong fitting. The M10 x 1.0 needed the 1/8 npt female end, not the male end on it that they gave me an adapter for making it too 'tall' to get below the rocker.
Lead Driver
Joined: Oct 2010
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From: Columbus, Oh
Yes. I worded mine wrong as well, but you've got it now!