1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

Ok. Tomorrow the motor is going to be on the ground.

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  #21  
Old 02-09-2010, 03:11 PM
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Well picked up an HY35 for $200 down in Albuquerque, has some extra boots and a blowoff valve that came with it. Don't think a blowoff valve is gonna do me any good but I can always sell it to some ricer guy. I'm excited how this all runs when I get it back together, going to have to take a drive and visit my dad so I can make him jealous.
 
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Old 02-09-2010, 03:42 PM
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arent the hy35's smaller than an hx35? i believe they only came on manual trucks
 
  #23  
Old 02-09-2010, 04:05 PM
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Yeah from what I understand the hy35 is a little smaller. Still an upgrade from the h1c.
 
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Old 02-09-2010, 05:20 PM
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I think the difference is the HX35 uses 12 cm housing and the Hy35 uses a 9 cm housing. Other than that they are the same. The hx/hy35 have a 56mm inducer, the h1c has a 54mm inducer. It is better than an h1c, but not a whole lot.
 
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Old 02-09-2010, 05:25 PM
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HY's came on autos.
 
  #26  
Old 02-09-2010, 05:49 PM
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Originally Posted by pewder
I had been planning on pulling the motor in my down time to do a full inspection of the motor and transmission.

Well I'm about to get it on the floor tomorrow, but while pulling off the intercooler boots I come across some krappy news. On the inlet side of the intercooler there is a fine soot from the great and wonderful nevada desert introduced the system by the wonerful supposed high performance K&N filter the dick put on. Anyways, on the outlet side and on the intake horn there is a coating of oil. I checked the turbo and it has a little up and down movement to it too.

So upon all this inspection I am starting to think that the oil in the intake is not a very good sign to the overall condition of the motor. What do you guys think about the oil in the intake? Think my rings ar shot because of the soot from the intake?
A compression check would tell you any real damage to the engine. If yuo want to see in it I would not pull the engine, just the head.

Also a little up and down play in a turbo is OK. My stock turbo on the 06 had a small amount of play in it from the day I got it. Same with teh Silver62 and every other new turbo I've ever seen. Also te longer it sits the more chance to see it you have. With no oil in it to float the bearing/bushings the will be a little slack and by the time it is multiplied to teh end of the shaft it is enough to see. if there is any in and out then THAT is a problem.
 

Last edited by RSWORDS; 02-09-2010 at 05:51 PM.
  #27  
Old 02-09-2010, 11:14 PM
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Well I pulled the motor to go threw it and replace seals, and then inspect it to see if the miles that I was told are accurate. The head is off as of this evening, didn't really look at the bores yet, going to have a few diesel mech. friends come over and look it over with me. And since it is out I'm going to paint it.

So is the hy35 going to make my truck run higher EGT's since it is such a small housing? So if it has to much problems then I could just go find a larger exhaust housing, correct?

One advantage to getting the new turbo is now I can put my H1C on my dad's truck since his is so damn rough the exhaust hanger broke and then broke the exhaust housing on his turbo.
 
  #28  
Old 02-10-2010, 08:09 AM
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end play min:.001
max: .003


radial clearance min:.012
max: .018

these are things you want to check since you have block out

head deck flatness
main bearing bore diameter (2.2720)
camshaft bore diameter (2.134)
tappet bore diameter (min:.630 max: .632)
crank seal wear
rod and main journals(make sure there is no scoring )
measure the piston skirt diameter ( min: .4.0088 max: .4.0107)
piston pin bore (min: 1.5750 max:1.5758 )
piston pin (min:1.5744 max:1.5749)
rod bearing clearance (min:. 2.7150 max: 2.7170 )
rod journals on crank (min: 2.7150 max: 2.7170 )

this should get you started
 
  #29  
Old 02-10-2010, 06:09 PM
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Originally Posted by tltruckparts
i dont know if soot is bad or not in an engine.

ha look at the 6.7L 60% of exhaust is put right back into the intake (via) EGR and they run like ****

AND TO PEWDER i have a ton of info and just rebuilt mine so if you have any questions shoot me a PM or call the 1-888# and i will help ya out there can be some tricky things

Brice
 

Last edited by big bad diesel 416; 02-10-2010 at 06:12 PM.
  #30  
Old 02-13-2010, 07:07 AM
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Originally Posted by pewder
Well I pulled the motor to go threw it and replace seals, and then inspect it to see if the miles that I was told are accurate. The head is off as of this evening, didn't really look at the bores yet, going to have a few diesel mech. friends come over and look it over with me. And since it is out I'm going to paint it.

So is the hy35 going to make my truck run higher EGT's since it is such a small housing? So if it has to much problems then I could just go find a larger exhaust housing, correct?

One advantage to getting the new turbo is now I can put my H1C on my dad's truck since his is so damn rough the exhaust hanger broke and then broke the exhaust housing on his turbo.
The HY should lower your EGT's, It wastegated and more efficient
 


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