compression testing the cylinders
Post Fiend
Joined: Dec 2010
Posts: 10,121
Likes: 3
From: Orrville, Ohio
You will need a diesel engine compression tester, a glow plug adapter for a PSD 7.3, and you should see around 400PSI per cylinder.
The main thing is that you don't want to see more than 10% variation between the cylinders. More than that and you have a problem.
The main thing is that you don't want to see more than 10% variation between the cylinders. More than that and you have a problem.
Thread Starter
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Senior User
Joined: Nov 2011
Posts: 326
Likes: 0
Would compression cause excessive white/grey smoke at start up until operating temp? I was thinking injector orings but swamps diesel told me compression.... Not injector orings.... My fuel filter has less than 500 miles and is dark grey so that is why I thought injector orings.
Post Fiend
Joined: Dec 2010
Posts: 10,121
Likes: 3
From: Orrville, Ohio
This kit has the adapter you need and goes for a little more than $100 bucks.
diesel compression tester - Google Search
Gray/black fuel filter sounds like injector o-rings to me. I don't know for sure if that would explain the smoking until warm up or not though, that might be something as simple as a few bad glow plugs. You had better believe I would be doing anything I could do to avoid pulling it out for an overhaul though. And the injector o-rings are cheaper than the compression tester, so you do the math...
Swamps knows their stuff, but I'm not sure I see where they are going with this one.
diesel compression tester - Google Search
Gray/black fuel filter sounds like injector o-rings to me. I don't know for sure if that would explain the smoking until warm up or not though, that might be something as simple as a few bad glow plugs. You had better believe I would be doing anything I could do to avoid pulling it out for an overhaul though. And the injector o-rings are cheaper than the compression tester, so you do the math...
Swamps knows their stuff, but I'm not sure I see where they are going with this one.
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Senior User
Joined: Nov 2011
Posts: 326
Likes: 0
I have gotten the orings and was going to have the injectors tested while out that was the purpose in calling swamps. I just had 4 injectors and 4 glow plugs replaced by ford... He done a compression test and said #8 was a little low but didn't give me any #s. It smokes at start then clears but starts again at idle... The smell is like raw diesel but the smell isn't as bad since the injector install. It runs clean not rough so I wouldn't think bad compression.... I found a place to flush and flow test my injectors but its $50 each.... What's you guys thoughts?
Hotshot
Joined: Feb 2009
Posts: 10,410
Likes: 77
From: Plankinton, SD
I would send Jim at Rosewood an email about your injectors, that seems quite high. I don't however know how soon you need your truck as you'd have to send them in to him. Sure wish you would have asked about your injectors sooner before ford more than likely bent you over for the 4 you had installed.
http://api.viglink.com/api/click?for...13289149772941
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Senior User
Joined: Nov 2011
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I would send Jim at Rosewood an email about your injectors, that seems quite high. I don't however know how soon you need your truck as you'd have to send them in to him. Sure wish you would have asked about your injectors sooner before ford more than likely bent you over for the 4 you had installed.
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Hotshot
Joined: Feb 2009
Posts: 10,410
Likes: 77
From: Plankinton, SD
Completely understandable, I should have worded that differently then, wish you would have known about the site! Good luck, send jim an email. He's generally pretty fast on turnaround time too, fyi.
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Senior User
Joined: Nov 2011
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Me too... It would have saved me several hundred dollars.
Postmaster
Joined: Jun 2009
Posts: 2,566
Likes: 1
From: Monroe/Ellensburg, WA
I have gotten the orings and was going to have the injectors tested while out that was the purpose in calling swamps. I just had 4 injectors and 4 glow plugs replaced by ford... He done a compression test and said #8 was a little low but didn't give me any #s. It smokes at start then clears but starts again at idle... The smell is like raw diesel but the smell isn't as bad since the injector install. It runs clean not rough so I wouldn't think bad compression.... I found a place to flush and flow test my injectors but its $50 each.... What's you guys thoughts?
Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
It's 255
This is from clays site
Full Force Diesel utilizes a state of the art HI 2000 injector flow test bench.* This product is to test and flow a set of eight 1994-2003 HEUI injectors.* This price includes new orings and any minor repair.* We will contact you before return shipping which is included in the price.
This is from clays site
Full Force Diesel utilizes a state of the art HI 2000 injector flow test bench.* This product is to test and flow a set of eight 1994-2003 HEUI injectors.* This price includes new orings and any minor repair.* We will contact you before return shipping which is included in the price.
Laughing Gas
Joined: Sep 2007
Posts: 871
Likes: 5
From: Near Shenandoah Valley
Maybe borrow a tester if you're near enough to someone. I hated to do it but I bought a Harbor Freight kit (China). I could have made up one for $50. or so with a fluid filled gauge and the set was on sale so, I can test a lot of stuff!