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Old 04-06-2016, 10:58 PM   #1
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Removing a 7.3... What parts should be replace while it's out?

My buddy's 7.3 is coming out of his bus to replace the exhaust manifold studs that broke in the process of replacing the gasket. Now that the engine is out what should he consider replacing, modifying or improving while the engine is on a stand?
The job was much easier than anticipated. Doing it in his driveway took 5-6hrs to take it out and likely the same to put it back...

So far we're thinking water pump, Serpentine belt, glowplugs. What ya think?

Thanks!
David



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Old 04-07-2016, 01:58 PM   #2
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Could always pull the injectors and send them away for a rebuild/cleaning service. Cheaper and easier than putting new injectors in later when the engine is back in the vehicle... See page 2 of this thread for a recommendation of a source to do the work and approx pricing...

Injector Cleaning & RPM Recommendations - Diesel Forum - TheDieselStop.com
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Old 04-07-2016, 04:38 PM   #3
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Thanks for the link, I'll look it up.
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Old 04-07-2016, 05:08 PM   #4
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A few suggestions to consider:

-rear main seal
-HPOP and fuel bowl o-rings
-valve cover gaskets (because those contain the injection connector which can cause problems if it cracks or loosens).
-CPS unless its one of the newer versions already.
-glow plugs. Or at least do a resistance test on them to verify they are in spec still.
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Old 04-09-2016, 12:35 AM   #5
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Thanks guys, the info has been passed along.

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Old 04-09-2016, 06:39 AM   #6
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I think the injector harnesses under the valve covers are a watch item. They don't necessarily fail, but the plastic connector gets brittle and allows the connector to possibly disconnect.


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Old 04-10-2016, 08:57 AM   #7
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Quote:
Originally Posted by BroncoHauler View Post
I think the injector harnesses under the valve covers are a watch item. They don't necessarily fail, but the plastic connector gets brittle and allows the connector to possibly disconnect.


Herb
If any of those need replaced here's a handy dandy Motorcraft catalog: http://www.fordservicecontent.com/pu...torcatalog.pdf

The Ford OEM or Motorcraft numbers either one can be used to cross reference another brand. The Ford/MC stuff tends to be pricey (but well worth the cost most times) but other good brands exist at lower costs.

HTH
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Old 04-10-2016, 09:55 AM   #8
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Thanks guys. Ended up taking him 6 hrs to get it out and should go back in faster. Not bad for a backyard mechanic! I passed along all your replies, he's just waiting for parts to show up now and now cleaning up the engine bay...

Cheers
David

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Old 04-10-2016, 11:49 PM   #9
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Here she is in all her glory, a big whale of engine!



And the void...


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Old 04-13-2016, 10:07 AM   #10
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If the motor is still out and funds allow, I would ask him to add the following mods as well. Just did them and no regrets.

Ford - 99-03 Super Duty 7.3L - Fuel System & Related - Regulated Return System - Riffraff Diesel Performance

Stainless Steel HPX for Ford 7.3L 99-03

and add new silicone intake boots with t-clamps
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