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Old 07-27-2014, 09:42 AM   #1
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Changing fuel filters

I have a Cummins ISC 8.3 in my class A. How can I stop the fuel flow while I'm changing the fuel filters?


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Old 07-27-2014, 09:45 AM   #2
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Low fuel. park downhill or level nose down to limits. Not really that much loss even when level.

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Old 07-27-2014, 11:03 AM   #3
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Thanks. I have read where pinching the plastic fuel line works. Is that advisable?
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Old 07-27-2014, 11:41 AM   #4
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There should be a shut off valve close by to the filter
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Old 07-27-2014, 01:19 PM   #5
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Whether there is a shut-off valve depends on the chassis year and model. Many do NOT have them.

If the fuel line is a flexible hose, a common mechanic trick is to pinch-clamp it with Vise Grip pliers. The chassis or engine manufacturer probably won't recommend that because it is possible to damage a hose that way, but it is a common technique anyway. Just don't get carried away!
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Old 07-27-2014, 01:23 PM   #6
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Originally Posted by flyboytravel View Post
Thanks. I have read where pinching the plastic fuel line works. Is that advisable?
If it's plastic...NO! It will cause damage to the line

If it's rubber....maybe if you're careful to not cut the rubber or damage the inside.


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