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Old 12-06-2010, 02:44 PM
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DieselScoff DieselScoff is offline
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Smile IP or Head Bolts?

I am driving a pre 92.5 7.3idi just replaced all the injectors. But I have to start in with ether all the time even when below 40 degrees. I am going to put a new injector pump on and head bolts instead of head studs due to cost right now, might change my mind later. I am wondering who thinks would be the culprit the low compression or a softy IP that is causing the starting issue, pump is turned up 1.5 flats. Total cost on parts without shipping is around $700 for IP pump, head bolts and Gasket set. Thank you for your thoughts.
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Old 12-06-2010, 02:50 PM
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Have you checked your glow plugs? What does your "Wait to start" light do? Can you hear the glowplug relay cycle? Did you put a new return line kit on when you did your injectors? You could easily have an air intrusion problem as well.

You definitely need to be checking GP system before you start in with other issues.
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Old 12-06-2010, 02:52 PM
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Hard starts, especially when cold, are usually due to faulty glowplug system or air intrusion or slow cranking.
Why do you believe you have low compression and why do you think your pump is bad?
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Old 12-06-2010, 04:33 PM
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I replaced the bullet connectors on the glow plugs new plugs all around, and it has a new relay in it, it cycles just fine not as long as i want so i am going to check again, i might need to set my torque screw back to stock also, i have gone over everything but the IP and Head bolts, The engine has 250,000+ on it so that is the reasoning behind the stretched head bolts, the engine is 21.5:1 really high
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1992 F250 7.3 idi with 3/5 inch stack
Two m24 Detroit comp turbos w/o mounting brackets, both purge at 65 PSI, going to put one on truck after bot end rebuild and o-rings installed on block and powerstroke heads
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Old 12-06-2010, 05:47 PM
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your ip is worn out if it is the original one they are a wear item which is recommened to replace at every 100000 miles same goes for injectors
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1996 f350 4x4 7.3, pmf with v codes, mods- dp tuner f-6 ,irate reg ret with 125 gph fass titanum, custom 38 gal tank, hpx, afe, edge insight, s463 2.5 legal, 4 inch dp to 5 inch exhaust, 3 inch sd plenum, studded, 910 vs, di pushrods, t500, ffd 250cc 200%, intercooler, 120v idm 4r100 with all the goodies, hydroboost, 08 rear diff cover, custom driveshaft and more mods too many to list
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Old 12-06-2010, 06:11 PM
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That is the same thing my dad said, they replaced the ip and injectors at the same time on the old international tractors and it makes a very noticeable difference, that is what i am going to do first, it only cost $362 plus shipping so it isn't very expensive
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1992 F250 7.3 idi with 3/5 inch stack
Two m24 Detroit comp turbos w/o mounting brackets, both purge at 65 PSI, going to put one on truck after bot end rebuild and o-rings installed on block and powerstroke heads
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Old 12-06-2010, 06:45 PM
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Where are you buying them from, you are talking about injectors right ?
that seems a little pricey for injectors look at a website called Pensecola diesel ,they have the best prices , if you are talking about injectors .
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Old 12-06-2010, 06:51 PM
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you can get both from penascola diesel
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1996 f350 4x4 7.3, pmf with v codes, mods- dp tuner f-6 ,irate reg ret with 125 gph fass titanum, custom 38 gal tank, hpx, afe, edge insight, s463 2.5 legal, 4 inch dp to 5 inch exhaust, 3 inch sd plenum, studded, 910 vs, di pushrods, t500, ffd 250cc 200%, intercooler, 120v idm 4r100 with all the goodies, hydroboost, 08 rear diff cover, custom driveshaft and more mods too many to list
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Old 12-06-2010, 07:21 PM
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no i already replaced the injectors they where around 160 for 8 and Injector Pump is $362
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1992 F250 7.3 idi with 3/5 inch stack
Two m24 Detroit comp turbos w/o mounting brackets, both purge at 65 PSI, going to put one on truck after bot end rebuild and o-rings installed on block and powerstroke heads
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Old 12-06-2010, 07:43 PM
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I thought you were saying 8 injectors for $362 ,i wasn't thinking you were talking about the ip.
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Old 12-07-2010, 07:56 AM
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Just FYI Pensacola has a surplus of our IPs, just bough one, no core charges no need to return the old unit!
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Old 12-07-2010, 10:13 AM
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I checked there website out, that is where i am going to order it from, do you know if they would sent me a copper head gasket and have turbo piping for our motor?
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1992 F250 7.3 idi with 3/5 inch stack
Two m24 Detroit comp turbos w/o mounting brackets, both purge at 65 PSI, going to put one on truck after bot end rebuild and o-rings installed on block and powerstroke heads
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Old 12-07-2010, 10:13 AM
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