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02-04-2017, 05:54 AM
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#1
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Name: gwhammy
Title: Too Much Time
Status: Not Here
Join Date: Sep 2006
Location: Missouri
Member`s Gallery
Posts: 2,201
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popping over 3000 rpm's
I haven't rode in it but my brother in law has a 95 that just started popping some over 3000 rpm's. It has around 300,000 miles on the stock injectors. I was thinking maybe he has some injectors getting weak. It never did this before. Typical mods, plate timing gov springs barrels maxed. Am I thinking right?
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95,twd,rc,sb,351-ht60 twins,160modded, 09 f350 12 valve,
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02-04-2017, 07:08 AM
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#2
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Name: YoungDiesel27
Title: Never Enough Time
Status: Not Here
Join Date: Jul 2010
Location: West Virginia
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Posts: 825
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What is the timing set at? And fuel pressure?
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EFI Live, HP Tuners, Smarty custom tuning
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02-04-2017, 08:10 AM
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#3
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
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Posts: 4,412
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Check the overflow valve, if it for sure didnt do it before. Low timing will make them pop also.
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02-04-2017, 03:53 PM
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#4
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Name: gwhammy
Title: Too Much Time
Status: Not Here
Join Date: Sep 2006
Location: Missouri
Member`s Gallery
Posts: 2,201
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Timing is around 18 degrees. He has had this truck for several years the way it is. I hadn't thought of low fuel pressure but it doesn't lay down like mine does with low pressure. That's why I was thinking a injector tripping wrong. Could it be valve springs? It has stock springs on it.
__________________
95,twd,rc,sb,351-ht60 twins,160modded, 09 f350 12 valve,
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02-04-2017, 08:16 PM
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#5
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Name: YoungDiesel27
Title: Never Enough Time
Status: Not Here
Join Date: Jul 2010
Location: West Virginia
Member`s Gallery
Posts: 825
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My guess is timing has slipped or fuel pressure is low.
__________________
EFI Live, HP Tuners, Smarty custom tuning
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02-05-2017, 06:30 PM
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#6
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Name: gwhammy
Title: Too Much Time
Status: Not Here
Join Date: Sep 2006
Location: Missouri
Member`s Gallery
Posts: 2,201
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Still pulls real hard and doesn't clean up smoke with the he351. I have had timing slip before I'm sure that is not it. I'm leaning toward valve springs getting weak. He is going to take it easy on it till warm weather.
__________________
95,twd,rc,sb,351-ht60 twins,160modded, 09 f350 12 valve,
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