Yeah they are worth a try but might bend abit if they are flimsy.

I'm not 100% sure what you mean.

The insides will always line up, the oil feed and return are always 180° from each other.

You don't want to clock the exhaust side at all, so make sure it goes back in the same place you took it apart.

The boost side (usually shiny side) can be clocked and rotated basically as much as you want.

I mean, to rotate mine (boost side) i marked the correct position to be in line with the oil return.. i was just wondering if that sounds right. As in theory everyone's should be in the same place, as in factory position.

Ah right, yeah that sounds about right.

Basically if you hold it up against a wall or flat surface as if it's fitted the lower side of the compressor housings should almost line up with it and be close to touching the wall also.... If that makes sence.

For what it takes to pop it on the car and put a stud or two in place it might be worth doing that if your not sure.

Ye thats fine i did mark it, just double checking .. before i **** it up lol

 

Cheers fella you have been a great help 

No worries

Hmm so ive got it all back together ...

 

Turbo is making a grinding noise :(

 

Car / turbo does nothing in 1st second .. seems like limp mode car stuck on 15k revs, third gear turbo works... wonder if something is sticking .. actuator arm ? 

 

When turn car off, there is a load vaccum air noise for around 5 seconds +

 

Any ideas?

Can you feel the actuator arm?

You should be able to push it down and feel it spring back.

It should be nice and smooth since you've just cleaned it so will push down a fair bit nice and smoothly.

It was before fitting back on, haven't tried it after fitting.

 

Im more worried about the grinding noise and the vaccum build up tbh...but i will check the arm tomorrow

Hmm so ive got it all back together ...

Turbo is making a grinding noise :(

Car / turbo does nothing in 1st second .. seems like limp mode car stuck on 15k revs, third gear turbo works... wonder if something is sticking .. actuator arm ?

When turn car off, there is a load vaccum air noise for around 5 seconds +

Any ideas?

Pop the inlet pipe to the turbo off and take a photo of the compressor blades to see if there damaged.

I'm afraid I can't help you with the other problems. You could try and message faboka for assistants.

Pop the inlet pipe to the turbo off and take a photo of the compressor blades to see if there damaged.

I'm afraid I can't help you with the other problems. You could try and message faboka for assistants.

will do, glad i replaced that dam clip for a t clamp now

 

Btw the vacuum thing wasn't happening post turbo off.

I ask incase the vnt is jammed and taking constant vacuum.

I take it you span the turbo by hand and everything was free before fitting?

Nothing can really grind inside the turbo unless it's quite knackered.

I ask incase the vnt is jammed and taking constant vacuum.

I take it you span the turbo by hand and everything was free before fitting?

Nothing can really grind inside the turbo unless it's quite knackered.

Yes it spinned freely.. 

 

The grinding noise is going more i use it:P

 

Ive taken a pic of the impeller from the tip end this morning it looks fine, and yes it spun freely before fitting.

 

 - with the strange lack of power, lower gears... if i keep tapping the accelerator, it comes alive, but if i drive normally and plant my foot there is no power, then i come on and off accelerator eventually it boosts  

 

Oh and i checked actuator moved arm and holds pressure when it was off

You got VCDS lite? If so log group 11 and post it up. 2000 to 4500 rpm in 3rd

You got VCDS lite? If so log group 11 and post it up. 2000 to 4500 rpm in 3rd

I have not too sure how to log > post results.. i will have a go right now .. 

 

Thing is, if i just drive it wont get to 4500 lol, so will it artificially effect results if i pump accelerator to get boost?

I don't feel boost and logs is the problem here.

It needs to be inspected properly, even more so because the housings have been split and vnt cleaned up.

I'd be worried about the grinding noise that's getting less and less... Wait till you correct the adjustment (saying so, did you move the actuator at all? Did you mark them with tipex as I suggested to make sure everything went back in the same place?)

.....soon as it's fixed, you may find the turbo will explode.

I don't feel boost and logs is the problem here.

It needs to be inspected properly, even more so because the housings have been split and vnt cleaned up.

I'd be worried about the grinding noise that's getting less and less... Wait till you correct the adjustment (saying so, did you move the actuator at all? Did you mark them with tipex as I suggested to make sure everything went back in the same place?)

.....soon as it's fixed, you may find the turbo will explode.

I never cleaned the VNT, as it was all really smooth, so i didnt split anything, the only thing that was done was the retaining circlip removed, housing spun, then circlip put back.. I did remove the actuator, to get to the vnt push bar, better. Nothing was altered.

I dont have excel, so hope this reads ok?

 

 

Engine speed Spec. intake press. Actual intake press. D.cycle MAP

TIME 2850-3150 2200-2400 2100-2600 35-80%

STAMP /min %

 

295.73 2016 2484 984 92.4

296.08 2058 1320 972 92.4

296.42 2016 2484 1308 24.7

296.76 2142 2508 444 24.7

297.11 2205 2508 432 25.5

297.46 2310 2520 2340 92.4

297.79 2436 2532 2676 67.3

298.14 2604 2532 2832 74.9

298.48 2751 2532 2952 79.3

298.81 2877 2532 2904 80.1

299.17 3003 2532 2808 79.7

299.51 3150 2532 2748 80.9

299.86 3276 2532 2712 82.1

300.2 3381 2532 2688 85.3

300.54 3528 2532 2664 84.1

300.89 3654 2532 2640 84.9

301.23 3759 2532 2604 83.7

301.57 3864 2520 2616 84.9

301.92 3969 2508 2532 86.9

302.26 4053 2496 2556 90

302.59 4158 2472 2556 92.8

302.94 4242 2448 2448 87.3

303.28 4326 2412 2496 94

303.63 4431 2376 2484 94.4

303.97 4494 2340 2460 94.4

304.31 4578 2280 2340 92.4

304.67 4641 2232 2244 88.5

305.02 4725 2172 2244 94.4

 

Videos of run:

https://youtu.be/fC_hObnLIU0

 

https://youtu.be/xml6LnBlNt4

Edited 26 July, 201510 yr by FromTheDarkness

4053 2496 2556 90

If I'm reading it correctly your actuator setting has been altered, the 90 above should be a maximum of 80% at 4000rpm, ideally nearer 70.

VCDS states 70-80% at 4000rpm.

Yeah the grinding is a concern. But I also suspect the actuator is off or a fault with the vacuum.

Getting some nice over boost to 1.9 bar. Ouch

But yeah does look like it's too short. I'd lengthen 2 turns and log again.

Can you email me the log? PM me for my address

email sent, im in the middle of uploading a vid from my dash cam from that run, and one before showing odd turbo noises ...

 

I will put vid with my log effort :P

I've put part of the log into a graph.

 

Personally I think the MAP sensor is on its way out. If you look theirs parts were actual drops to around 500mbar bear in mind atmosphere pressure is around 990mbar.

 

I'd fit a new MAP and log again.

 

I've put part of the log into a graph.

 

Personally I think the MAP sensor is on its way out. If you look theirs parts were actual drops to around 500mbar bear in mind atmosphere pressure is around 990mbar.

 

I'd fit a new MAP and log again.

That is a new MAP :( possible its a bad one tho

http://www.ebay.co.uk/itm/271364354951?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Check your wiring where it enters plug

Check your wiring where it enters plug

ok its not stretched tho, like ive seen some after fiting a fmic, there quite a bit of slack.

 

If the wiring was dodgy wouldn't this flag a vcds error