D19D turbo problems
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=40979
Printed Date: 21 Aug 2025 at 4:42am
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Topic: D19D turbo problems
Posted By: m16ty
Subject: D19D turbo problems
Date Posted: 22 Nov 2011 at 10:10pm
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I was servicing my D19 tonight and noticed oil leaking out of the intake tube onto the starter. I pretty well knew what that meant so I pulled the tube to looks closer. Sure enough, the turbo is leaking oil into the intake. Looks like it's time for a rebuild. Where can I get the parts to rebuild the turbo or is it just as well to swap it out with a rebuilt one? My I&T manual gives a pretty detailed writeup on the rebuild but I've never actually rebuilt one. The manual does say you can rebuild the later turbos without special tools and my tractor is a '64 so I assume it has the later syle. I looked it up on the AGCO parts book website and they only list the complete turbo and no rebuild kits. On a side note, I'm starting to remember why I sold the last D19D I had. Seems like when I get one thing fixed something else fails. |
Replies:
Posted By: Orange Blood
Date Posted: 22 Nov 2011 at 10:32pm
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Agco probably never offered a "Kit" you will have to get a parts book or use the online one, and order all the individual pieces. According to the parts book, the new turbo design was effective with s/n 2D-53750, page 62 ------------- Still in use: HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060 Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7 |
Posted By: m16ty
Date Posted: 22 Nov 2011 at 10:38pm
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I'm not even seeing the individual parts listed in the parts book. All I saw was the complete turbo. I'll look again. Edit- I went back and looked and found the parts breakdown. Now the only question that remains, how hard is it to rebuild the turbo? |
Posted By: stray
Date Posted: 22 Nov 2011 at 10:54pm
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I use to be worried about it, but I took my first one apart a few weekends ago and it was very simple. Keep your manual handy and have a good clean work bench were you can lay things out and keep them stright you should be fine. Remember it pay close attention to which way the nut is suppost to turn, mine had left hand threads.
------------- 1969 190XT series 3 |
Posted By: m16ty
Date Posted: 22 Nov 2011 at 11:19pm
| After some research I'm finding out that the turbo is a Air Research TO4B80. Is this correct? |
Posted By: stray
Date Posted: 22 Nov 2011 at 11:34pm
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from what I can tell from the parts book it could be a Thompson or Air Research. From what I've heard the Air Reasearch is the better turbo and easier to find parts for. You may check with a local diesel shop that rebuilds turbos for parts, they are usually a little cheaper than Agco. ------------- 1969 190XT series 3 |
Posted By: Travis(NE)
Date Posted: 22 Nov 2011 at 11:36pm
| My 64 has a Thompson and I think my early two have Ray-Jay's? I'd have to look again for sure. Funny thing is all three of my running 19's each have their own sound. |
Posted By: DonDittmar
Date Posted: 23 Nov 2011 at 5:49am
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I sent mine out to Michigan Turbo for a rebuild....it was a Thompson. Only reason I sent it out as Michigan Turbo can balance the rotating assembly, which is important considering how fast a turbo can spin.
BTW, Thompson=Thompson Road Works, AKA TRW, still in business today only they make steering gears ------------- Experience is a fancy name for past mistakes. "Great moments are born from great opportunity" 1968 D15D,1962 D19D Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start |
Posted By: DMiller
Date Posted: 23 Nov 2011 at 5:59am
| Better off to send it for rebuild, they will balance and verify all the pieces are functional to get the most out of the unit. The fan sections could also be degraded and they will have people that can determine how bad and if need replacing. |
Posted By: Don(MI)
Date Posted: 23 Nov 2011 at 6:07am
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I actually bought a new air research, and put it on.
Didn't like the sound, not much whistle. Ended up going back to the original Rayco, off the second engine. Long story..
I see michigan turbos ads all the time. Seems like they should be able to help on the rebuild. ------------- Galatians 5:22-24 "I got a pig at home in a pen and corn to feed him on, All I need is a pretty little girl to feed him when I'm gone!" |
Posted By: Travis(NE)
Date Posted: 23 Nov 2011 at 6:22am
I hear you Don. My 61 has an awesome whistle compared to the so-so whistle of my 64.
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Don(MI) wrote:Posted By: Don(MI)
Date Posted: 23 Nov 2011 at 6:39am
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Ya, there is a difference for sure on turbos. This is the ray-jay turbo. I don't think these are available anymore...
[TUBE]F-QTZQG_b7Y&feature=mfu_in_order&list=UL[/TUBE] ------------- Galatians 5:22-24 "I got a pig at home in a pen and corn to feed him on, All I need is a pretty little girl to feed him when I'm gone!" |
Posted By: MACK
Date Posted: 23 Nov 2011 at 7:43am
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If it is a Rajay,Thompsonor or TRW, it will leal some oil in the intake. This is common on these turbos.
If it is a air reserch, and has been on for a long time, you won't get it apart. Bolts won't come out of ex. housing and if they do you won't get the heat shield out of ex. housing. MACK
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Posted By: m16ty
Date Posted: 23 Nov 2011 at 9:48pm
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I haven't looked at the turbo to see what kind it is yet. I knew about some of the older turbos leaking a little but I have oil pouring out the intake pipe. I think I've found a good takeout Air Research off of a 190XT. I understand they are the same turbo. I'm going to look at it over the weekend to see if it will work. |
Posted By: m16ty
Date Posted: 23 Nov 2011 at 9:56pm
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How much side to side play in the shaft is too much? I've got another Air Research but the side play seems excessive. The blades will almost hit the housing when you wiggle it. The takeout turbo I'm going to look at came of a M2. The guy that has it rebuilt his 2900 engine in the M2 and thought the turbo in question had too much side to side play in the shaft so he ordered a new one. When he got the new one in it had just as much side play as the old one. He went ahead and installed the new one so the old one is available. |
Posted By: MACK
Date Posted: 24 Nov 2011 at 7:09am
| Turbo from a 301 is bigger than a 262. External size will be the same but the wheels are smaller on a 262. Will work but not well. MACK |
Posted By: DrAllis
Date Posted: 24 Nov 2011 at 8:15am
| This has been 35 years ago, but I thought the AirResearch replacement was the same as an old 190XT, with the engineering thinking of it doesn't provide very much boost pressure, as that engine has enough head gasket issues anyway. |
Posted By: MACK
Date Posted: 24 Nov 2011 at 10:23pm
| Dr. You could be right. Like you, it has been a long time since I replaced a turbo on a D19. MACK |
Posted By: tbran
Date Posted: 25 Nov 2011 at 5:33pm
| The TRW or Rayjay was a little different on the d19 vs the 190 HOWEVER the Air Reseach was the same. The Rayjays or TRW's had two different center sections, one had a sacrew in fitting for the drain and the other had a 2 bolt flange similar to the AirResearch. I do not remember any D19's with factory AR turbos. There was a "kit" to install a AirResearch on the D19 as the TRW/RayJay went thru some tough times. The kit required changing the intake tube and feed line and drain line. As stated unless the D262 is torn down, raise the sleeves ( factory specs state below deck level but this will NOT hold a head gasket) to a 2 or 3 thous stand out and make sure block and head are straight it is a 99% chance you get to see these in person anyway. We ran into many engines (long ago) that had the head planed so much the head bolts would bottom out and torque but still leaving the head loose. My ears still ring from straght stacks...... |
Posted By: m16ty
Date Posted: 25 Nov 2011 at 8:36pm
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tbran, I'm the one that called you last week. I picked up the M2 turbo today and it's wore smooth out (compressor blades have contacted the housing). Looks like I may have to go with the one we talked about. Kevin ordered some more parts for me so I'll be down that way when they come in. Took the turbo off today and it's a TRW. The shaft doesn't have all that much play but it's leaking pretty good. |
Posted By: m16ty
Date Posted: 26 Nov 2011 at 5:40pm
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Well three turbos and about 200 miles later, I'm back to square one. Picked up a used Rajay off a 190xt from tbran today but it's got the wrong return line fitting and the compressor is going to have to be disassembled for the outlet to come out in the right spot (a 190 has the intake and exhaust on either side). I was going to be too much work to get it mounted so I've decided to try and rebuild my old turbo. I've torn down my old TRW and now I need to look for the rebuild parts. It came apart real easy and is pretty straight forward. I just followed the instructions in the IT manual. The bearing was trash but everything else looks ok. There's a diesel shop in Nashville that I'm going to call Monday to see if they can get the parts. |
Posted By: Don(MI)
Date Posted: 26 Nov 2011 at 5:48pm
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I still have that air research turbo I talked about earlier. Only has about 1/2 hour run time on it. Brand new when I bought it. PM me if interested. ------------- Galatians 5:22-24 "I got a pig at home in a pen and corn to feed him on, All I need is a pretty little girl to feed him when I'm gone!" |
Posted By: injpumpEd
Date Posted: 26 Nov 2011 at 7:08pm
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a great parts source will be area diesel in carlinville IL. I think they bought what was left of the trw turbo line. 1-800-637-2658.
------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |