7.3 gallons per hour at idle ? - Ford Powerstroke Diesel Forum
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post #1 of 103 Old 01-28-2010, 07:48 PM Thread Starter
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7.3 gallons per hour at idle ?

Does anyone know how much fuel does a 7.3 use in an hour ? At idle, no a/c.

And also, I heard that the 6.0s dosen't really like long idle period because of the turbo. Does the 7.3s care about doing a hour or more of idling ?
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post #2 of 103 Old 01-28-2010, 07:51 PM
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Burns a half gallon and hour... you can let them both idle as long as you want, just be sure to "clean" it out

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post #3 of 103 Old 01-28-2010, 07:56 PM
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It's not so much the turbo on the 6.0's as it is the EGR valve.


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post #4 of 103 Old 01-28-2010, 09:16 PM
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its not very good to let any diesel engine idle for long periods of time. It will glaze the cylinder walls causing lots of blowby and low compression.
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post #5 of 103 Old 01-29-2010, 03:35 AM
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Quote:
Originally Posted by berto4599 View Post
its not very good to let any diesel engine idle for long periods of time. It will glaze the cylinder walls causing lots of blowby and low compression.
Could you elaborate, please.............................


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post #6 of 103 Old 01-29-2010, 03:58 AM
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Quote:
Originally Posted by berto4599 View Post
its not very good to let any diesel engine idle for long periods of time. It will glaze the cylinder walls causing lots of blowby and low compression.


Nope. Wet stacking could be a concern though. But if its idled up a little you're good.

As to the 6.0 the new flash fixes the sticky vanes at idle issue.

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post #7 of 103 Old 01-29-2010, 04:55 AM
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I usualy idle mine up before idleing a half hour or longer.
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post #8 of 103 Old 01-29-2010, 06:49 AM
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sitting at a dead idle isnt bad as long as it isnt for a long period of time. If it is going to be run for a long period you should find some way to raise the idle at least a few hundred rpm, 1000 rpm would be probably the best. Go where its cold, sometimes trucks hardly ever get turned off in the winter. I myself have run them around the clock, but to run them all the time the idle needs to be raised

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post #9 of 103 Old 01-29-2010, 07:10 AM
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Quote:
Originally Posted by berto4599 View Post
its not very good to let any diesel engine idle for long periods of time. It will glaze the cylinder walls causing lots of blowby and low compression.
How would extended idling cause cylinder wall glazing more than running it at higher rpms? I've let my truck idle for hours on end. I have 165,000 miles with no more blowby then when it had 100,000 miles. And still has the same power. Newer electronically controlled diesels don't wash down cylinders like the old mechanical diesels do. If that what your thinking.
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post #10 of 103 Old 01-29-2010, 07:20 AM
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Quote:
Originally Posted by berto4599 View Post
its not very good to let any diesel engine idle for long periods of time. It will glaze the cylinder walls causing lots of blowby and low compression.


Dude oh my god

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