CT12 D Rebuild Help / Tips

D

Dongskie

Fresh Recruit
Completed the set-up today and got a reasonable coupler.

Upon driving and testing the difference was immediately noticeable.

- RPM goes up faster
- increase in acceleration rate
- engine is more silent (dunno how&why)
- while cruising on 5th gear @80kph and step on the gas there is more response now, unlike w/o the turbo its like step on gas and rpm is and speed increase is I dont know how long lol!
- when i back-off the throttle it doesnt slow down fast anymore... its like some drag was lost.
- no increase in engine temp during my curising and testing except for when I got stuck in traffic under the sun at 12noon!
- no smoke


 
Jay

Jay

Admin
That's great progress mate, good to hear it's a noticeable change. I've only seen a few vag motors run without an intercooler locally. Might be something to consider once you get used to the extra power.

Jay
 
D

Dongskie

Fresh Recruit
Jay said:
That's great progress mate, good to hear it's a noticeable change. I've only seen a few vag motors run without an intercooler locally. Might be something to consider once you get used to the extra power.

Jay
Click to expand...

Thanks mate!

Yes i will, as soon as I fix the little bugs and vibrations :)

Im thinking of a compatible top mount intercooler something like this:

pajeroi5.jpg
 
D

Dongskie

Fresh Recruit
Hi all, it's been around 60 days or more with my turbo install and glad to note that I haven't had any problems since.

I have a second really bad turbo that I am working on (experimenting on actually) and worked on installing a bearing on the compressor side.

Spent a few hours at a mate's Lathe that I had no idea how to use and i was given a crash course LOL

Here it is:


And fitted, no play.


I cut down 5mm length on the shaft to accomodate the 5mm bearing, well a little over 5mm to sit properly and stay flushed down the chra and avoid touching the thrust bearing flange.

On the CHRA i bored it out to 16mm (bearing outer diameter) from the original 13.5mm and 5.+mm depth.

I will now install the engine oil supply to the turbo and not the stand alone oil and pump anymore. I was told to use a oil restrictor when I tap it from the oil sending unit via "Tee" adaptor.

Hope it goes out well :)
 
D

Dongskie

Fresh Recruit
Skalabala said:
You need to use a ceramic bearing :D
Click to expand...

I ordered a pair on eBay :)

Here's a recent development, I put aside my bearing mods for the meantime and concentrated on the stock set-up meaning the floating bushing and engine oil feed .

So I rebuilt another CT12 with the repair kit I got online. I installed an union thingy for the oil feed line via the oil pressure sending unit.


I found the oil return feed hole for the alternator/vacuum pump version model and got a banjo bolt for it.





I also had the intake redone.







And so this is how I ended up with the setup, I haven't had the time to buy some good hoses for the compressor side hose.
 
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