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Old 03-27-2013, 02:13 PM   #15
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I am ordering the parts for the new filter head and the primer pump this weekend and will change it out next weekend. I may go ahead and add this also that way I know I am covered no matter what situation I am in. I plan on keeping this unit for many more years so whatever I spend on it now should last me for a long time. Did you reinstall the old filter with the fuel in it or did you change it out? If you changed it out did you put it on dry?
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Old 03-27-2013, 10:12 PM   #16
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Mike and Pat,
The filter you see in the picture is a brand new filter, just installed. That's the one that I installed dry, following instructions in a CAT owners manual. Not knowing all the variations of the 3116, the 3126, and the C-7, I don't know what the fuel operations for each and every one of them is. The book I was following just happened to be in my satchel along with a ton of other manuals etc. But, it's primarily for the 3126. So, I admit I may have made a mistake here in following the instructions for fuel filter change, in the 3126, for a non-secondary equipped fuel filter w/primer pump and, a filter base that's not equipped with a removable bleed plug.

All it said was install the filter dry and use the starter to start the engine, and the filter will fill up automatically. Well, we all know what happened so, NEVER AGAIN, WILL IT BE INSTALLED WITHOUT FILLING IT!
Scott
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Old 03-27-2013, 10:41 PM   #17
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Quote:
Originally Posted by Randy blase View Post
After u installed the shut off valves how did the motor react on the first start up with some air in the line.
Randy blase,
Sorry for the late reply. When I removed the hoses, one at a time, I had cut the thumb off a brand new rubber glove and was ready to "cap" the end of the hose, immedidately after removal. I did that with both hoses. I put rubber bands around them to insure it was a tight cap. When reversing the situation, all the fittings/valves were in place and tight, I uncapped each one, didn't see any fuel in them, and installed them. It fired right up and kept running. That's about it Sir.

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Seems like time and money well spent to me ... I'll be doin' it along with my next new filter. Thanks for the followup!
bruceisla,
I really like the way it looks, and how it turned out but, I'm not overly prowd of the price I paid. I admit, I got lazy. The gent behind the counter who was orchestrating the fittings fittup, basically told me that I could quite possibly cut the cost in half if I went over to Home Depot for the same arrangement. Well, he had them there, in front of me, the valves I wanted, the fittings were not exactly what I had planned but would do the trick. I figured I would keep the guy in business by purchasing stuff from him.

Now here's the deal, I'm no chemical expert so, one could go to Home Depot or Lowes or, even your local ACE or True Value hardware store and build what you see in my picture, with ease. But, what I'm getting at here chemically is, I don't know to what effect diesel fuel will have on any of the valves one would get at Home Depot or any other place. These are specifically "fuel shut off valves" for Gasoline, diesel etc. You will not find those valves at Home Depot or Lowes though. What you will find is:

Homewerks Worldwide 3/4 in. x 3/4 in. Brass FPT x FPT 1-Piece Lever-Handle Gas Valve-VGV1LHB4B at The Home Depot

Of course, they've got a zillion more valves but this one would be the one I'd choose if I were to build my system from Home Depot. What's critical is the last fitting in line here. It must mate up to the swival on the original hose end. The fittings on mine were SAE 6, and SAE 8.

Quote:
Originally Posted by topdownman View Post
Looks like you've also got a little "anti-theft" device.
Well, yep, I thought about that. But. I'm so darn absent minded these days, if I used those valves for "anti-theft" yep, it would work flawless, ON ME 'cause I'd forget to turn them back on!! Good thought though.
Scott
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Old 03-28-2013, 09:16 AM   #18
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Scott,
All of the filters Caterpillar installs are dry at time of installation. When we would do a machine break in test on any machine the engine fuel filters would need to be primed and filled. The mechanic would have to prime and fill the fuel filter before testing any unit such as a 5230 Front Shovel that used a 16 CYL, 3516 engine. We would than replace all of fitters on the machine before shipping them out with new filters these too have to be primed and filled also.

Another point against pre-filling the filter is the potential of ingesting debris in the filter that might not be filtered and enter the HP fuel system. This could lead to damaging the fuel injectors. With your shut off valves at the fuel filter installed now you should not have a hard starting issue any more.

Jim W.
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Old 03-28-2013, 02:33 PM   #19
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Jim W,
Well Sir, thanks for the insight and experience in dealing with CAT engines. I think I'm pretty safe to say that yes, it will NEVER happen again, for reasons/actions stated. Even though the frequency of change is only annually, it's still a comforting thought that, a year from now, I'll have NO ISSUES when doing my filter change.
Scott
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Old 03-28-2013, 02:51 PM   #20
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Thanks for the reply I am going to be ordering my valves this week
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