Pre-Power Stroke Diesel (7.3L IDI & 6.9L) Diesel Topics Only

do we have any IDI guru's out there?

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  #106  
Old 07-14-2010, 09:45 PM
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I Ill get you a video in a few. I am gonna put some miles on her and see if it smooths ou
 
  #107  
Old 07-14-2010, 10:51 PM
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Originally Posted by starmilt
If it is running and has smoothed out they are bled all they will ever be. These systems will self bleed.
About how long to fully bleed? I only put a few miles on it
To tired to go any more and to many stop lights
 
  #108  
Old 07-14-2010, 11:07 PM
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Another easy upgrade for this motor is to use a Powerstroke oil filter. It's twice the size of the IDI filter and the base is identical.

I also use a B&M shift improver to firm up the shifts. I have it in both of my trucks. I've been running them for 5 years and have had no problems. I also do a fluid/filter change every 2 years. If I did any towing or frequent heavy hauling, I'd probably do it every year.
 
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Old 07-15-2010, 12:16 AM
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I have a late 2-3 shift and sometimes it seems tojump to od to fasr
 
  #110  
Old 07-15-2010, 01:04 AM
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The lift pump pumps 1/3 pint in 10 seconds while cranking, So in 60 seconds that would be two pints of fuel while cranking ... I have never tested the flow while running but I suspect it is more than 1/3 pint in 10 seconds!

So, In a minute or so of running all the air in the system will be gone unless it's leaking air on the suction side of the lift pump. ie tank to lift pump.

-Enjoy
fh : )_~
 
  #111  
Old 07-15-2010, 01:19 AM
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The shift improver won't change the shift pattern or schedule. It only firms up the shifts by electronically increasing the line pressure.
 
  #112  
Old 07-15-2010, 01:39 AM
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Originally Posted by Festus Hagen
The lift pump pumps 1/3 pint in 10 seconds while cranking, So in 60 seconds that would be two pints of fuel while cranking ... I have never tested the flow while running but I suspect it is more than 1/3 pint in 10 seconds!

So, In a minute or so of running all the air in the system will be gone unless it's leaking air on the suction side of the lift pump. ie tank to lift pump.

-Enjoy
fh : )_~
lift pump is gone, I went electric
 
  #113  
Old 07-15-2010, 02:18 AM
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Shame, however electric or manual it's still a lift pump.

-Enjoy
fh : )_~
 
  #114  
Old 07-15-2010, 02:26 AM
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Would off timing cause a miss?
 
  #115  
Old 07-15-2010, 02:34 AM
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[edit] IGNORE ... brain fart on my part, forgot the injectors were replaced! Duh! [/edit]

In affect thats exactly whats wrong in a cylinder or two, but adjusting the pump timing will not resolve failing Injectors.

If you were to have your Injectors pop tested you will find that some pop a little low and some are super low, then there is the dribbling ones!

An early (low pop pressure) popping Injector is like advancing the timing for that one cylinder.

What did the tips look like before you cleaned them ... Sooty, Wet, Dry, Oily, Black, Brown, White, Green, Blue, Yellow ???

-Enjoy
fh : )_~
 
  #116  
Old 07-15-2010, 02:43 AM
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I had them pop tested earlier. I replaced them all tonight. I had posted the results a page back.I Don't remember what they looked like, ill have to go check the old ones
 
  #117  
Old 07-15-2010, 03:06 AM
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Yea, Sorry, Brain fart on my part ... You got new ones don't worry about the old ones!

-Enjoy
fh : )_~
 
  #118  
Old 07-15-2010, 03:10 AM
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How consistent is the miss, is it steady or erratic ??

-Enjoy
fh : )_~
 
  #119  
Old 07-15-2010, 03:12 AM
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They were in horrible shape. think the timing is causing the miss?
 
  #120  
Old 07-15-2010, 03:14 AM
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Originally Posted by Festus Hagen
How consistent is the miss, is it steady or erratic ??

-Enjoy
fh : )_~
Erratic. Only once in a while
More like a surge
 


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