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OBS turbo compressor cover

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Old May 27, 2019 | 02:24 PM
  #1  
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OBS turbo compressor cover

My question is can I get the turbo compressor cover off on the vehicle like the super duty 7.3 L?
I’ve already removed three out of the 48 mm bolts to take it off, the lower wall is a pain but I was just wondering if it’s even worth trying to get it out?

I was planning on changing out the compressor wheel on My girlfriends 96 power stroke. We changed the intake boot on the turbo and I noticed that some of the fans on the compressor wheel were kind of chunked out. I have a wicked wheel laying around in the shop for a power stroke 7.3 and figured I would throw it on.
 
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Old May 27, 2019 | 08:47 PM
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Turbo has to come off
 
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Old May 27, 2019 | 09:14 PM
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I got it to come off. PITA. had to cut a 8mm wrench halfway and turn the bottom bolt bit by bit. Getting It on with new compressor was harder. But I got it. I did use a impact on it. I know they say not to. But had to. Truck has 251k miles. And the impeller was screwed up



Compressor cover off

Compressor removed
 
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Old May 27, 2019 | 09:17 PM
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The new compressor wheel isn’t impressive. I had it laying around from my super duty that I took off. Probably an eBay wheel. It’s a 9 blade billet wheel. No more, maybe less boost, we will see in the long run how good it is though. Should’ve just ordered a WW2 or a Riffraff wheel
 
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Old May 27, 2019 | 09:22 PM
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Also. Do the automatics put out less boost then a manual? This is my girlfriends rig. And I have never had an auto 7.3. Only manuals
 
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Old May 27, 2019 | 10:23 PM
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they should be able to produce the same amount of boost at WOT. the auto just maintains boost while shifting.
 
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Old May 28, 2019 | 10:24 AM
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Originally Posted by DanielT28
I got it to come off. PITA. had to cut a 8mm wrench halfway and turn the bottom bolt bit by bit. Getting It on with new compressor was harder. But I got it. I did use a impact on it. I know they say not to. But had to. Truck has 251k miles. And the impeller was screwed up



Compressor cover off

Compressor removed
Someone really doesn't know what they are doing.

That is a dusted turbo.

Engine might have suffered some cylinder damage.

Compression test needed and look with bore scope for wall scoring
 
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Old May 28, 2019 | 11:04 AM
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You just compromised the the impellar shaft by using the impact gun, don't be surprise if it fails in the future. The compressor wheel looks like if got hot by something.
 
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Old May 28, 2019 | 11:51 AM
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I’m expecting to replace the turbo in the future. Near future, so I’m just crossing my fingers for now.

I believe the engine does have some issues with compression. The truck will not start even when warm outside unless you wait for glow plugs. I mean, could be glow plugs I suppose but my mind says you don’t need to wait for glow plugs at 80° outside
 
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Old May 28, 2019 | 03:30 PM
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May have to order up a new turbo from riffraff 👍🏼
 
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Old May 28, 2019 | 06:25 PM
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Not starting around 80F could be a crappy starter, weak batteries, or corrosion. BTDT. I stop using glow plugs when in the low 70s in the AM...just unplugged the relay from the ECU.
 
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Old May 29, 2019 | 08:39 AM
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You need to do a compression test before blowing money on things that wont help

At 60 F or higher, I just crank the engine over and it starts up after a few revs
My IDI tractor wont even energize the GPs at 70

This is mostly free to do and many over look it
https://www.ford-trucks.com/forums/1...ou-cranky.html
 
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