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Old 09-23-2018, 04:57 PM
Bmcgarvie Bmcgarvie is offline
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Default 38r turbine failure

So after my truck started puffing black smoke I decided to tear into it and found my compression to be between 350-380. I also re torqued my injectors which were all a little loose. I then pulled the turbo to take off the .84 housing to reinstall the 1.0 that came on it (38r). I then found the turbine looks to have taken some hits. What could cause this? I have an egt gauge and I've only seen over 1000 degrees a hand ful of times and for very brief timeframe. Also since a t4 kit is still out of budget how many people have experience with the new sxe style kc turbo?
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7.3, ff 180/30,BTS trans, gear head tuned, dp tuner infinity, strictly pre pump, strictly rr, Carson t4, bw 364.5/73/.91
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Old 09-23-2018, 05:02 PM
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DieselDC DieselDC is offline
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I have not and I’ve been lucky (400k original turbo) but many of our members have snapped their turbine shaft after a rebuild.

It’s weak by geometry and diameter. There’s a fix: http://alturl.com/maggy

I’ve been checking to see if any are avail. Sadly it’s been out of shock for while now.


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Old 09-23-2018, 06:20 PM
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Damage is on the inducer side. Which means it came from the engine side. Who drilled the spot for the EGT probe? It’s possible it came from debris from that or the engine ate something/ came loose inside.
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96 F-350 RC 4x4 Hypermax Rods, PIS 300/200s G head tunes, Garrett GT4294, Beans IDM, ARP head & main, girdle, half filled block, DI cam, Dual IPRs, ceramic coated bowls, anti-friction skirts, Haldex pump over Honey Badger Jr, Diesel site High volume lpop, Billet intake Plenums, Dual SD pumps, Fluidampner, beehive springs, cosmetic head gaskets, Inconel valves, hardend guides, Ported and polished heads by me, home made RR fuel, 5 speed tranny, with SB 3600 DxD. Snow water meth.
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Old 09-23-2018, 06:39 PM
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I highly doubt it’s from the bitties from the drill and tap egt probe installation. Inconel is very hard and I only see that when the shaft has play on the cool side and slowing eroding the hotside and ban bang - it gets chewed up. If something did come from the engine, got more major chit to worry about then.


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Old 09-23-2018, 06:41 PM
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Did the shaft have play?
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96 F-350 RC 4x4 Hypermax Rods, PIS 300/200s G head tunes, Garrett GT4294, Beans IDM, ARP head & main, girdle, half filled block, DI cam, Dual IPRs, ceramic coated bowls, anti-friction skirts, Haldex pump over Honey Badger Jr, Diesel site High volume lpop, Billet intake Plenums, Dual SD pumps, Fluidampner, beehive springs, cosmetic head gaskets, Inconel valves, hardend guides, Ported and polished heads by me, home made RR fuel, 5 speed tranny, with SB 3600 DxD. Snow water meth.
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Old 09-24-2018, 10:27 AM
Bmcgarvie Bmcgarvie is offline
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The turbo has almost zero play. Up and down and none in or out. Definitely not enough to contact the housing.
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7.3, ff 180/30,BTS trans, gear head tuned, dp tuner infinity, strictly pre pump, strictly rr, Carson t4, bw 364.5/73/.91
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Old 09-24-2018, 10:28 AM
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Then like magnum mentioned, it must be something from the engine or debris.


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Old 09-24-2018, 11:11 AM
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Pretty common.
Pull all your glowplugs.....

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Old 09-24-2018, 07:49 PM
Bmcgarvie Bmcgarvie is offline
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i just pulled them to do the compression test a couple of days ago. I'm thinking maybe the egt probe? Also the compression wasn't bad either 350-380
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7.3, ff 180/30,BTS trans, gear head tuned, dp tuner infinity, strictly pre pump, strictly rr, Carson t4, bw 364.5/73/.91
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Old 09-24-2018, 08:08 PM
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They were all the same length?
Could be the probe. Might as well take a look.

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__________________
2003 F250 KR SCSB FX4
Depleted, studded, airdog (which isn't currently hooked up), fass regulated return, airaide, 4 inch straight pipe with mbrp muffler(so on to go), glowchit pyro, fuel, boost, and trans temp. (Of course don't work lol) Hercules terra track A/T2 315/70/17.
2013 Honda pilot Touring
http://badges.fuelly.com/images/sig-us/778639.png
http://badges.fuelly.com/images/sig-us/776628.png
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