Turbo 4.0L Fail

Here is the build about my 4.0L build. This was my first build and it was done to shut my Brother-inlaw up. He was always on my case to turbo something so I asked him if he gave me a turbo I would do it. The next day he pulled a T3/T4 that he had on the shelf from his toy Datsun 280ZX.

The engine was leaking coolant and I had bought a engine seal kit just to freshen it up.

Citat :

Här är byggnaden om min 4.0L byggnad. Det var min första byggnad och det var klart att stänga min Bror-inlaw upp. Han var alltid på mitt fall till turbo något så jag frågade honom om han gav mig ett turbo som jag skulle göra det. Nästa dag drog han en T3/T4 som han hade på hyllan från hans leksak Datsun 280ZX.

Motorn läckte kylmedel och jag hade köpt en motor tätningsutrustning just att friska det upp.

Pulled the motor out and cleaned it up and got it painted.




Good Time to install a New clutch.


Almost ready to go back in the truck.


Getting Turbo placement and y-pipe figured out.


Bad idea but great placement.



Start over again.


Much better.




Downpipe started.



Little clearance


Getting better


Time to connect downpipe.



Switch to the intake pipes.



Cut up an expensive mandrel U bend I got.


Closer


Low pressure intake side nearly done



High pressure side.



Overall shot


Extra injectors



Back out one last time.


Ypipe and down pipe connected.




Intake pipes Connected and painted.


Decided on installing a blowoff valve


Connected, out put goes right back into turbo.



Muffler installed


Boost guage mounted.








[quote]

Some of the pictures are not in order.

I had done all the build work before I pulled the engine out to replace the gaskets and seals.

Here are some of the videos.

Start up


First of the drives, starting to increase the boost.


First off road trip at 6 PSI but fried the fuse for the electric fan and it was overheating.


Taking it easy and Overpowered the new clutch.


Then got stuck and needed a tug from a friend.

Here is one more video.



Now for the FAIL part.

With it overheating and having a small turbo for such a big engine. The failures were the oil return line from the turbo had an S bend in it and after warming up the rubber it kinked and was flooding the turbo with oil past the seals. Also with the repeaded beatings and a couple overheat times I cracked one of the heads. I was leaking coolant into #1 piston. Along with the burning oil it was not fantastic.

So i pulled it all off and have gone back to a stock engine. All the parts have been sitting in my shop ever since and I don't plan to have it continue sitting there. Now comes the new project.

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Med det överhetta och att ha ett litet som är turbo för sådan stor motor. Misslyckandena var oljeåterkomst linjen från det turbo hade en S böjning i det och efter värma upp gummit det kinked och översvämmade det turbo med olja förbi tätningarna. Också med repeaded slåendena och ett par överhettar tider jag sprack en av huvuden. Jag läckte kylmedel in i #1 kolv. Tillsammans med den brännande oljan var det inte fantastiskt.

Så drog jag allt detta bort och har gått tillbaka till en lagermotor. Alla delarna har suttit i min affär alltsedan och jag planerar inte det fortsätta med att låta att sitta där. Nu kommer det nya projektet.

Look at my post about the new guy from across the pond.

Nice And you really need to change to a bigger turbo to make the engine breath like it should

Mikael skrev:

Nice And you really need to change to a bigger turbo to make the engine breath like it should

In time. I will upgrade to 2 turbos that are the same. One on each side.

Better looking with one big

that some nice engine did you got some trouble with the engine anytime??

did you just use the engine as it was no working on it ??

your experiense of this type of build ups i started to do my engine as you but i wanna do it with more workout

well i hoe you do more fun with this engine good luck

I didn't have any form of extra fuel to the engine under boost so it was running lean and was getting very hot. Over 240°F a couple times. Only running 3 PSI

I do plan to revive this project. I have all the parts just need to get the time to get it all together.

Have a Vortech FMU 12:1 (and 10:1 kit if I need) Already have a 255 LpH fuel pump. Intercooler, just need some plumbing pieces. Plan to redo the oil return line as hardline Vs the rubber it was. Same turbo. This time I plan to take it to 7-10 PSI.