What is the Cody Test ???
Thread Starter
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Postmaster
Joined: Dec 2010
Posts: 2,951
Likes: 4
From: Gary,Indiana
What is the Cody Test ???
I do recall hearing something about the Cody test to check for leaks in HPO system. I do not think I have a issue or should I say I hope not.
But I am going to replace the HPOP lines and I this would be a good time to do so.
I don't want to pressurize it the wrong way or actually damage something.
Also is the Cody Test just for checking for leaking injector O rings?
But I am going to replace the HPOP lines and I this would be a good time to do so.
I don't want to pressurize it the wrong way or actually damage something.
Also is the Cody Test just for checking for leaking injector O rings?
Senior User
Joined: Aug 2007
Posts: 412
Likes: 0
From: Fresno, CA
This is the problem with calling stuff stupid irrelevant names after whoever posted it on the forum first....
You put air into the high oil pressure rail on the head and listen/look for leaks. You will see if there are leaking upper injector o-rings.
There is no way to hurt anything, you are only using up to 150 psi shop air pressure. Just watch for the oil coming out when you remove your air source.
It is more or less a waste of time if you don't have any problems. Any injector o ring that is leaking at 150 psi will more than likely have a starting problem already.
This thread a few posts down describes exactly what happens when you have an upper o ring leaking
https://www.ford-trucks.com/forums/1...-cranking.html
You put air into the high oil pressure rail on the head and listen/look for leaks. You will see if there are leaking upper injector o-rings.
There is no way to hurt anything, you are only using up to 150 psi shop air pressure. Just watch for the oil coming out when you remove your air source.
It is more or less a waste of time if you don't have any problems. Any injector o ring that is leaking at 150 psi will more than likely have a starting problem already.
This thread a few posts down describes exactly what happens when you have an upper o ring leaking
https://www.ford-trucks.com/forums/1...-cranking.html
Thread Starter
|
Postmaster
Joined: Dec 2010
Posts: 2,951
Likes: 4
From: Gary,Indiana
This is the problem with calling stuff stupid irrelevant names after whoever posted it on the forum first....
You put air into the high oil pressure rail on the head and listen/look for leaks. You will see if there are leaking upper injector o-rings.
There is no way to hurt anything, you are only using up to 150 psi shop air pressure. Just watch for the oil coming out when you remove your air source.
It is more or less a waste of time if you don't have any problems. Any injector o ring that is leaking at 150 psi will more than likely have a starting problem already.
This thread a few posts down describes exactly what happens when you have an upper o ring leaking
https://www.ford-trucks.com/forums/1...-cranking.html
You put air into the high oil pressure rail on the head and listen/look for leaks. You will see if there are leaking upper injector o-rings.
There is no way to hurt anything, you are only using up to 150 psi shop air pressure. Just watch for the oil coming out when you remove your air source.
It is more or less a waste of time if you don't have any problems. Any injector o ring that is leaking at 150 psi will more than likely have a starting problem already.
This thread a few posts down describes exactly what happens when you have an upper o ring leaking
https://www.ford-trucks.com/forums/1...-cranking.html
But I will make a mental note to use this when I do run into an issue. This proves you can teach an old dog new tricks. LOL To bad I have no real need to do this but it will come in handy some day. I just hope when the day comes that I will remember what to do. Dah..LOL
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Since this is an annoyance... I'll make a few stabs at it, then I am anxious to see your contribution.
HPO rail...
...puff test
...leak test
...air test
...inflation test
Injector O-ring leak test
I suspect no matter what we name this one, people will still ask what it is, how it's done, and what the benefits are - just like the Hutch mod, the boost leak detector, the 50-cent mod, the 42-pin connector test, the red line mod, the zoodad mod, the harpoon mod, etc....
Senior User
Joined: Aug 2007
Posts: 412
Likes: 0
From: Fresno, CA
Since this is an annoyance... I'll make a few stabs at it, then I am anxious to see your contribution.
HPO rail...
...puff test
...leak test
...air test
...inflation test
Injector O-ring leak test
I suspect no matter what we name this one, people will still ask what it is, how it's done, and what the benefits are - just like the Hutch mod, the boost leak detector, the 50-cent mod, the 42-pin connector test, the red line mod, the zoodad mod, the harpoon mod, etc....
Trending Topics
Hotshot
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
As Tugly said, so many things with regards to the 7.3 that have been done over the years, naming it after a guy that mentions it on here, or on other diesel sites, just became a habit. Nothing wrong with it in my opinion.
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Tuned
Joined: Jan 2013
Posts: 269
Likes: 6
The "OFFICIAL" tester that sells on the dieselsite.com
has instructions that say to use 15 p.s.i. to do this test.
CORRECTION: I see (we) are talking a HPOP pressure test here.
I was thinking of the OTHER boost leak testing that is for intake air & such.
You wouldn't want 150 there!
See how easy it is for
to get confused 
DDT
has instructions that say to use 15 p.s.i. to do this test.
CORRECTION: I see (we) are talking a HPOP pressure test here.
I was thinking of the OTHER boost leak testing that is for intake air & such.
You wouldn't want 150 there!
See how easy it is for
to get confused DDT
Cargo Master
Joined: Nov 2005
Posts: 2,766
Likes: 56
From: East Tawas, MI
Being born in this forum, and not knowing my own cousins names..............
When it comes down to the hutch, the cody and the fifty.....blah blah
I think it's quite a large step up to throw a disappointing shovel of dirt at the acronyms.
I quickly associate what a problem is and understand the acronyms we use. Pisses me off when someone has they're hair tied to tight in they're pony tail or has a "particular" problem with a label for a repair.
Denny
When it comes down to the hutch, the cody and the fifty.....blah blah
I think it's quite a large step up to throw a disappointing shovel of dirt at the acronyms.
I quickly associate what a problem is and understand the acronyms we use. Pisses me off when someone has they're hair tied to tight in they're pony tail or has a "particular" problem with a label for a repair.
Denny
Last edited by Stewart_H; Apr 17, 2018 at 10:15 AM.
Tuned
Joined: Jan 2013
Posts: 269
Likes: 6
Yeah, I'm not really all that excited about it but I sort of like being part of the (secret club) that knows all the code words when talking about the Diesel Mods. and all the other abbreviations associated with (our) engines. IPR, CPS, IPS, TPS, HPOP, IVS,.. It's kind of like when you are computer tech. illiterate and someone that knows all about it starts talking to you on the subject. It's like they are speaking another language!
The (Diesel Club Code) sort of gives you the appearance of knowing more than (you) probably do.
A similar thing that can happen if you sit around the hanger and talk with pilots. If you get to know some of the
(code talk) you might be able to actually understand or participate in the conversation.
Do you have your PPL? Got any endorsements? Looks like it's going to be IFR in about an hour. What's the missed approach procedure?... And ask any non pilot what it means when an aircraft "stalls" and I bet they will tell you the engine must have quit running , right?
Anyway, I still got to do the Hutch, The Harpoon & R7R some HPOP o-rings. Did the CCV Mod. & Resonator Delete.
Still waiting for someone to ask me what the "Georgia Overdrive Equipped " in my signature means. LOL DDT
The (Diesel Club Code) sort of gives you the appearance of knowing more than (you) probably do.
A similar thing that can happen if you sit around the hanger and talk with pilots. If you get to know some of the
(code talk) you might be able to actually understand or participate in the conversation.
Do you have your PPL? Got any endorsements? Looks like it's going to be IFR in about an hour. What's the missed approach procedure?... And ask any non pilot what it means when an aircraft "stalls" and I bet they will tell you the engine must have quit running , right?
Anyway, I still got to do the Hutch, The Harpoon & R7R some HPOP o-rings. Did the CCV Mod. & Resonator Delete.
Still waiting for someone to ask me what the "Georgia Overdrive Equipped " in my signature means. LOL DDT
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
This is the problem with calling stuff stupid irrelevant names after whoever posted it on the forum first....
You put air into the high oil pressure rail on the head and listen/look for leaks. You will see if there are leaking upper injector o-rings.
There is no way to hurt anything, you are only using up to 150 psi shop air pressure. Just watch for the oil coming out when you remove your air source.
It is more or less a waste of time if you don't have any problems. Any injector o ring that is leaking at 150 psi will more than likely have a starting problem already.
This thread a few posts down describes exactly what happens when you have an upper o ring leaking
https://www.ford-trucks.com/forums/1...-cranking.html
You put air into the high oil pressure rail on the head and listen/look for leaks. You will see if there are leaking upper injector o-rings.
There is no way to hurt anything, you are only using up to 150 psi shop air pressure. Just watch for the oil coming out when you remove your air source.
It is more or less a waste of time if you don't have any problems. Any injector o ring that is leaking at 150 psi will more than likely have a starting problem already.
This thread a few posts down describes exactly what happens when you have an upper o ring leaking
https://www.ford-trucks.com/forums/1...-cranking.html
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Sheesh dude... you've been away a while. I'll assume you've been making ridiculous coin with your plow in the East coast's long winter.