86 Trooper turbo diesel with turbo removed- help?

This is the place to discuss DIESEL engine modifications.
boertjie01
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Location: Phoenix
Isuzu vehicle(s): 1986 Isuzu Trooper turbo diesel

86 Trooper turbo diesel with turbo removed- help?

Postby boertjie01 » Fri Jul 13, 2018 12:17 am

Ok, so I just bought my first Isuzu diesel here in Az. I noticed the turbo is missing and all the connections are still there. The exhuasted has just been welded to bypass any previous turbo connections. So, I go through the engine and get it running. Lots of white smoke. I flushed the engine, drained tank. Engine still seems to ping, run weak. So I check the timing belt. It looks new. Also, the timing was off about 4 teeth. Fixed that. Truck still has no power and throws white smoke. Also pings.
So my question is, since the previous owner removed the turbo and I don’t know the history of the truck. Could the issues be caused by the lack of the turbo? Truck has 225k on it btw.
Please please please. Any help is appreciated. I love this truck already. I want to build an overlanding rig out of it.
If the lack of the turbo is the issue, where do I start? Where can I get one?

Pupfocused
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Location: Portland, OR

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby Pupfocused » Fri Jul 13, 2018 11:18 am

I believe the white smoke is unburned fuel. There is a small hose on top of the pump that increases the fuel with vacuum when the turbo kicks in, you might try disconnecting that to see if the white smoke goes away or decreases. Without a turbo a trooper will be under powered. The turbo adds about 20hp.

Jim
1981 diesel pup(gone)
1985 4x4 diesel pup
1986 diesel trooper

2sk8
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Location: California
Isuzu vehicle(s): 91 Isuzu Pick up converted to diesel

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby 2sk8 » Fri Jul 13, 2018 12:13 pm

You are timing is probably off, check injection timing.

The csd (Cold start device) in the injection pump may be acting up too(It gets stuck every now and then).

Also do a compression check.

Your injectors may need to be replace as well.

When I got my first C223 engine, I swear I had like 99 problems, so of them you will not believe.

You probably have more than one issue I'm sure, who knows what the last owner did to the truck besides removing the turbo. Remember he removed the turbo... I mean why would you do that?

Find a turbo and reinstall it. You will like the truck with a turbo so much more.

I did turbo mine a couple of years ago and what a difference does it make... So much more fun to drive.

Post results.

Good luck

boertjie01
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Location: Phoenix
Isuzu vehicle(s): 1986 Isuzu Trooper turbo diesel

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby boertjie01 » Fri Jul 13, 2018 2:27 pm

You guys are awesome. Thank you for your replies. I will check the injection timing today and report back. The little hose on top of the pump is disconnected currently.
Does anyone know where to start on finding a turbo without spending a small fortune?

Thanks again for all the help so far.

2sk8
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Posts: 200
Joined: Thu Apr 17, 2008 2:59 am
Location: California
Isuzu vehicle(s): 91 Isuzu Pick up converted to diesel

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby 2sk8 » Fri Jul 13, 2018 8:45 pm

Ebay is the place to go to find an inexpensive turbo.

The GT15 is a good candidate but you need to make an adapter for it... And do some other modifications depending on how is your set up now.

Now I'm running this beauty (Robust, reliable, inexpensive):

GT15 >> Around $145

https://www.ebay.com/itm/Motorcycle-snowmobiles-small-turbo-GT15-T15-452213-0001-Compress-35A-R/141889634712?epid=1055539923&hash=item2109480198%3Ag%3A0XEAAOSwIQdZMdDw&_sop=15&_pgn=4&_sacat=0&_nkw=gt15+turbo&_from=R40&rt=nc

https://www.ebay.com/itm/SET-VMS-RACING-GT15-T15-TURBO-CHARGER-MOTORCYCLE-ATV-BIKE-WATERCRAFT-Great/183070354972?hash=item2a9fd7ee1c%3Ag%3ADFwAAOSwY7tagSTP&_sop=15&_pgn=4&_sacat=0&_nkw=gt15+turbo&_from=R40&rt=nc

I recently bought a brand new GT1549S (From Renault Laguna) for only $60 delivered and all... I know, I couldn't believe myself.

The only issue is that I have to convert the waste gate actuator to pressure actuator because it came with a vacuum one, but that is no problem. I already ordered the adjustable/serviceable actuator and I will post about the results once I'm done.

boertjie01 can you post some pictures of how the engine is looking on where the turbo used to be?

So we all can take a look.

Pictures, pictures

joeshmoe44883
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Location: Tiffin,Ohio

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby joeshmoe44883 » Fri Jul 13, 2018 8:59 pm

I have a turbo off a trooper that im going to rebuild if youd be interested, no idea on price yet. I would stay away from the cheap chinease turbos on ebay, i can show you more than one instance of them failing very early.
2 86 Trooper II diesels, one 4 door the other 2, both projects.
86 Jeep Cherokee Pioneer with factory 2.1L turbo diesel.
05 Jeep Liberty Limited with 2.8L diesel (totaled)
06 Chevy Silverado with duramax
2014 Jeep Grand Cherokee ecodiesel

2sk8
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Joined: Thu Apr 17, 2008 2:59 am
Location: California
Isuzu vehicle(s): 91 Isuzu Pick up converted to diesel

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby 2sk8 » Sat Jul 14, 2018 12:31 pm

The turbo that came in Isuzu Pup is the tb0209 turbo = 40 year old technology... ( A dinosaur )

tb0209 turbo Turbine Housing AR is 0.63 = (WAY TOO BIG OF TURBINE HOUSING)
VERY SLOW TO SPOOL
INEFFICIENT

GT15 = New technology.

Turbine Housing AR is 0.35 = FAST SPOOL, EFFICIENT, RELIABLE

tb0209 turbo = 40 year old technology VS GT15 = New technology

Guess who wins? The GT15 wins anytime of the day

Turbos fails all the time, it doesn't matter who makes them or where they are made.

Most of the time has to do with poor maintenance (Dirty oil, hot shut downs, little or no oil, well you get the picture).

Hell, if the GT15 fails just buy a rebuilt kit for around $30 or better yet a CHRA cartridge for around $100 and you are set to go.

joeshmoe44883
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Location: Tiffin,Ohio

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby joeshmoe44883 » Sat Jul 14, 2018 2:27 pm

I agree that the tb02 is old, and the newer gt15’s are better, but the tb02 bolts right up, not everyone wants or knows what to look for to adapt.

It DOES make a difference who makes them, while turbos are simple, they need to be precise, sometimes down to microns making a difference. I have a few turbos in my shop now that are china turbos and the machining is terrible, the balancing is terrible, absolutely no care in making them. Heres an example of a “gt1752” off a saab.

51F04540-619D-4BD6-8D29-9283CD6BACB9.jpeg

Here the compressor rub the housing, alignment is soo bad it didnt even rub the housing evenly, only where the housing was offset enough to rub.

BA551627-EAD8-4792-AD35-0D9C12A592CE.jpeg

Same turbo, there was still shavings left in the housing that it plugged up the oiling hole for the thrust bearing and starved the front part of the bearing. Turbo didnt make it 1,000 miles.

AA756087-8C15-4940-8D9B-1C2C6CB8B3BA.jpeg

The middle wheel is off the china turbo, while the other 2 are oem garrett wheels. 2 things to look at:

1) how much it took to balance the wheel, the garretts are barely skimmed over.
2) the crappy job the “balancing machine” did.

So please school me on how china turbos are so great. I respect and admire the coating and ring work you did, but your screwing up using those cheap turbos.
2 86 Trooper II diesels, one 4 door the other 2, both projects.
86 Jeep Cherokee Pioneer with factory 2.1L turbo diesel.
05 Jeep Liberty Limited with 2.8L diesel (totaled)
06 Chevy Silverado with duramax
2014 Jeep Grand Cherokee ecodiesel

downunderyank
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Location: Hutchinson MN
Isuzu vehicle(s): spacecab diesel Holden rodeo 1993, 1986 pup spacecab, 1987 pup spacecab
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Re: 86 Trooper turbo diesel with turbo removed- help?

Postby downunderyank » Sun Jul 15, 2018 7:57 am

I've bought and sold dozens of isuzu turbo diesels in australia and I've seen plenty of chinese ebay turbos that have failed after only a few thousand miles and some of the took the engine with. Used good turbo better than new inferior turbo.
Last edited by puttputtinpup on Sun Jul 15, 2018 9:37 am, edited 1 time in total.
Reason: Removed profanity
converted '86 diesel spacecab

2sk8
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Posts: 200
Joined: Thu Apr 17, 2008 2:59 am
Location: California
Isuzu vehicle(s): 91 Isuzu Pick up converted to diesel

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby 2sk8 » Sun Jul 15, 2018 12:13 pm

** So please school me on how china turbos are so great **

Very good question.

I think you should ask that question to: Garrett, Borg Warner, Holset, IHI and all the others on why they sold us out.

By the way you should drive my truck and you'll have a different opinion.

joeshmoe44883
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Location: Tiffin,Ohio

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby joeshmoe44883 » Sun Jul 15, 2018 1:29 pm

Not sure what you mean by “sold us out?” Please explain...

Im not arguing that those size turbos work good, or that the china turbos work. What im saying is those are inferior turbos and wont work for long, or as long as a quality turbo would. Youve been through 5 different turbo swaps, so unless youve put 50k-100k miles on in the last year or so, you havent ran those turbos long enough, i have seen some put 60k miles on before failure, others are normally less.

I will agree they are good for one thing, r&d to find which turbo works best. Once you find one that works, buy or build the same from quality components. The best aftermarket turbo parts supplier is Mellett from the uk.
2 86 Trooper II diesels, one 4 door the other 2, both projects.
86 Jeep Cherokee Pioneer with factory 2.1L turbo diesel.
05 Jeep Liberty Limited with 2.8L diesel (totaled)
06 Chevy Silverado with duramax
2014 Jeep Grand Cherokee ecodiesel

2sk8
Regular Member
Posts: 200
Joined: Thu Apr 17, 2008 2:59 am
Location: California
Isuzu vehicle(s): 91 Isuzu Pick up converted to diesel

Re: 86 Trooper turbo diesel with turbo removed- help?

Postby 2sk8 » Sun Jul 15, 2018 3:00 pm

Time will tell