6.4 banjo's Good or bad?? - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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Old 03-27-2013, 02:40 PM
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6.4 banjo's Good or bad??

Last i heard everyone was dicussing whether 6.4 banjo's were good for the 6.0. Was there ever a conclusion or is it still just opinions?? I was wondering if i should look into them for my truck?
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Old 03-27-2013, 03:08 PM
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I think there is still mixed opinions. Personally I look at it as less restriction so therefore better flow. Had mine in for probably 15000 miles with no known problems. FWIW

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Old 03-27-2013, 03:08 PM
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Neither. If you have it apart and feel like spending the $10 on them go for it. If not dont bother.
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Old 03-27-2013, 03:35 PM
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I put mine in went I did my head studs. Probably wouldn't have done it otherwise..
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Old 03-27-2013, 04:37 PM
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When you look into the fuel lines from the filter can to the heads you will find that the true restriction is in the banjo fitting itself. the orifice in the fitting allowing fuel into the banjo fitting is only 3/16". Nothing you do with the bolt will fix that. To really get more fuel into the head you need to scrap the banjo setup altogether and install M12 to -6AN elbows. That will give you a real open flow into the head. Of course it really helps to have the rest of the fuel system required to make this worth while.
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Old 03-28-2013, 04:12 AM
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Had a set on my shelf for two teardowns of my engine, last year for ARPs, this year for injectors. Still haven't taken them off shelf!-lol. Can't justify why? Ford put the check valve there for some reason I guess - and with the blue spring mod, even my 155/30s never see below 58psi on a tow tune. That's measured at filter test port - I doubt I will ever install them. I don't think anybody has had issues after installing them though, nobody has posted issues on here.
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Old 03-28-2013, 04:56 AM
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Thanks everyone, I am doing injectors and was curious if it was worth it. I think i am going to pass.
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Old 03-28-2013, 05:09 AM
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I've had the 6.4 bolts for about 30k without any issue that I know of. But I do know for updated the spring for the check valve to a heavier spring for more seat pressure. I would say they did that to fix some issue but what I don't know. I personally will be putting a set of new stock bolts in to see if I notice any difference once the weather gets warm.
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Old 03-28-2013, 08:17 AM
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the guy who did my HG's installed them and he does so on all the trucks he works on. (he did over 75 6.0 HG's last year)
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Old 03-29-2013, 09:34 AM
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As I recall, the theory behind the check valve in the banjo fittings was to prevent back flow or siphoning of the fuel out of the heads when the engine wasn't running. Is it true? I don't know, but judging by the responses here and elsewhere, it doesn't seem to hurt to put them in.
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