Outer Limits 4x4 Board

hi every one im wanting to rebuild my turbo on my 2.8 hilux. does any one no how or no someone who could show me how. cheers David

You can't rebuild the turbo unless you've got the specialist rebalancing tools required to rebalance the turbo after it is rebuilt.

My recomendation is to take it to a reputable turbo repairer or send it away to one and have them rebuild it and send it back, that way you know it is being done right. the last thing you want is the turbo destroying itself and taking the rest of the engine with it.

I'm not sure where you are but there is a place in Rockhampton Qld that does a bloody good job and doesn't charge the earth either.

how bad is the turbo. and what type is it.
is it off the dts kit?

send it to RPM performance at morayfield, or drift king at gebung or some perfomance car shop, power torque engines mabey? stay away fom RDP, they seem to overcharge there.

you can rebuild your turbo, BUT it is a big gamble. If it doesnt go back together balanced, it can self destruct and can take out the engine along with the turbo

mate have a crack at it urself its not overly difficult just rember how it comes apart there relatively straight forward and cause its not a high performance turbo on a built motor, ur running it on a small diesel balancing is not a big issue.

Just make sure the compresson wheel goes back on the shaft in the same orientation it came off - it should remain balanced.

i did my ct26 myself, just mark the shaft and compressor so it goes back in the same spot, havent had a issue with it yet, and its been worked hard, if you get worried about it you can get someone to balance it when it re built

mate have a crack at it urself its not overly difficult just rember how it comes apart there relatively straight forward and cause its not a high performance turbo on a built motor, ur running it on a small diesel balancing is not a big issue.

this is not very good advice, and is also very incorrect!!! All turbochargers, whether fitted to performance engines, petrol, diesel or bog standard motors should, no, MUST be balanced. If the assembly is not balanced it will destroy itself (and your engine) ver quickly. Balancing the engine is not necessary (unless it is a performance engine) but that said balancing any engine will help it run smoother.

87 Turbo Hilux wrote: stay away fom RDP, they seem to overcharge there.

Holy Shit! I'm not the only one that thinks that!?

i was charged $2150 to get my old 3.0l patrol tuned with a chip that i supplied and i also asked them to fit a boost gauge and change the oil and filters which i supplied aswell...

I arrived all happy and excited but only shocked and pissed off with a $2150 bill!

flyology wrote:

mate have a crack at it urself its not overly difficult just rember how it comes apart there relatively straight forward and cause its not a high performance turbo on a built motor, ur running it on a small diesel balancing is not a big issue.

this is not very good advice, and is also very incorrect!!! All turbochargers, whether fitted to performance engines, petrol, diesel or bog standard motors should, no, MUST be balanced. If the assembly is not balanced it will destroy itself (and your engine) ver quickly. Balancing the engine is not necessary (unless it is a performance engine) but that said balancing any engine will help it run smoother.

X2.
There is a BIG difference between something "seeming to be ok" and something being right. When you are talking about something that is spinning at upwards of 30,000rpm a 0.1 gram imbalance is almost a 1kg imbalance at full flight..
How much do you value your engine?

well considering that advice was given to me by a very reputable turbo rebuilder i value there advice over any of urs sorry guys but im sticking with what they told me.

johnsy86 wrote:well considering that advice was given to me by a very reputable turbo rebuilder i value there advice over any of urs sorry guys but im sticking with what they told me.

Ignorance is bliss!
I'm sure "She'll be right"..

Ruffy wrote:

johnsy86 wrote:well considering that advice was given to me by a very reputable turbo rebuilder i value there advice over any of urs sorry guys but im sticking with what they told me.

Ignorance is bliss!
I'm sure "She'll be right"..

wasnt ignorance listened to someone who knew what they where talking bout ,and 1yr later and turbo and motor still good, geez they must of been right.

flyology wrote:this is not very good advice, and is also very incorrect!!! All turbochargers, whether fitted to performance engines, petrol, diesel or bog standard motors should, no, MUST be balanced. If the assembly is not balanced it will destroy itself (and your engine) ver quickly. Balancing the engine is not necessary (unless it is a performance engine) but that said balancing any engine will help it run smoother.

Actually his advice was both sound and accurate.

Turbo components are all balanced individually, the final balance on assembly is a tiny residual which affects turbo noise more than anything else, the tiny amount that's cut from the compressor nut shows just how little is done. Further, reassembling the turbo with the same compressor wheel/shaft orientation preserves this final balance.

I've done three, even swapped in different wheels which negates the final balance. None have had any related problems.
How many have you done?

ok, I dont want to start an argument, but you say yourself that all the individual components have to be balanced. Problem is, that not all parts are made perfectly and if you get a wheel or shaft that is not spot on, you are in for dramas. Balancing the assembly is like blueprinting an engine, you are checking that everything is within tollerance.

Yes, you can pull a turbo down, put a kit through it, change bits and pieces and it will work. But how long for? how reliable is it going to be?

Not balancing it can give you issues from noise, premature bearing wear, to major explosion. You may get away with it and have no problems at all, but eventually one will let you down.

and as has been said previously, that tiny amount ground off the nut ends up being a hell of a lot when you are spinning at speeds of 150000RPM.....


No, I have never rebuilt a turbo, I have paid for mine to be done at a reputable shop. I am sure you will agree that putting three together does not make an expert either........ What was the problems you had the ones you put together?

flyology wrote:ok, I dont want to start an argument, but you say yourself that all the individual components have to be balanced. Problem is, that not all parts are made perfectly and if you get a wheel or shaft that is not spot on, you are in for dramas. Balancing the assembly is like blueprinting an engine, you are checking that everything is within tollerance.

That's the point. Turbo parts are balanced individually after manufacture. They are all spot on.
If the individual parts are out, then you have no hope of getting final balance.

flyology wrote: Yes, you can pull a turbo down, put a kit through it, change bits and pieces and it will work. But how long for? how reliable is it going to be?

As reliable as a new turbocharger.
Yes that's right. As reliable as a new turbocharger.

If everything checks out as within spec then your rebuilt turbo is going to last just a long as a brand new one.
Remember, very few turbos actually wear out. Most are killed through debris or oil supply issues.
If looked after a turbo can outlive the engine it's bolted to.

flyology wrote: Not balancing it can give you issues from noise, premature bearing wear, to major explosion. You may get away with it and have no problems at all, but eventually one will let you down.

They have to be way out of balance to get any of those problems. Far beyond the bit you'll find ground off a nut. You've noticed that final balance occurs in the middle of the wheel where it has the least effect.

flyology wrote:What was the problems you had the ones you put together?

I've had dust/debris eroded compressor wheels (twice on two turbos), those were the wheel swaps. I've also had the oil feed line come apart and toast bushings.

The turbo I'm currently using has had both compressor wheel swapped and bushings replaced by me. I run this one outside the map garrett intended and it's done over two years.
I'll be pulling it apart again soon though, I need to kludge together some parts from different turbos for an experiment and need the turbine wheel and shaft.

http://www.turbotechnics.com/docs/turbo/balanceinfo.htm

http://www.mx6.com/forums/1g-mx6-forced ... tions.html

If its just oil seals you can do it yourself, Just leave the comp wheel on the shaft and mark where the turbine wheel came off.

put a kit thru it then reassemble how it came apart.

Its not rocket science, if something is balanced and you mark then put it back together exactly how it was then its still goin to be balanced, Id like to c an unbalaned turbo damage a 3L diesel also, Mine ate 3 blades of a compressor wheel and the grit that caused it and I didnt even no it happened till I noticed the lack of boost.

The cost to rebuild a turbo is theft, hav a go yourself I rekon.

87 Turbo Hilux wrote:send it to RPM performance at morayfield, or drift king at gebung or some perfomance car shop, power torque engines mabey? stay away fom RDP, they seem to overcharge there.

Me things you should go back to trolling boost cruising bud. The only shop you listed there with a reputation for anything other than blowing up 18 year old wanna be drifters silvias is power torque and they out source there turbo work anyway.

Try http://www.turboaustralia.com.au/ or http://gcg.com.au/
turbo australia are in darra but gcg you will have to send it to them

Turbos spin at around 15000 +rpm you really do need to have it balanced
in theory if you put it back together how it came apart and nothing was damaged it will still be balanced and fine. id steer away from using second hand parts eg wheels unless checked tho