Not as crazy as it sounds...

I have a TD05 turbo I want to take apart, unfortunately the big circlip that holds the compressor housing cover on is a little rusted and won't budge.

Can I safely put the turbo in the over to about 180 deg C? This is low enough not to affect aluminium heat treatment, but will it kill the seals etc? Normally the core is water cooled, but I don't know the temps involved in normal use.

Alternatively, does anyone have any goof suggestions on how to remove said clip.

Paul

 

i got a goof suggestion:

microwave it to heat it quicker

[Edited by SCOSaltire - 8/21/2002 2:35:29 PM]

 

I'd have clear out the remains of cat first

 

my clip was mint....however, when removed, you will probably find the sections of housing are stuck proper too

would have thought seals will be ok, as even on a car, you cant touch the thing after driving, they can reach 800 degrees or more, even when cooled by the water.

 

wirebrush and wd40 followed by a couple of taps with a hammer and screwdriver to get it moving ??

 

Yes, will try again tonight, been busy on other things of late. I wouldn't mind cleaning up the turbine housing a little while it's off.

BTW Townend Garage supplied me with some water hoses and banjo bolts for just £10.

Paul

 

Just leave the wd40 on for a few hours to soak in. The clip should come off ok. I dont see any problems putting it in the oven either, but would it really make any difference????

 

PlusGas would be better than WD40

FWIW
Paul

 

WD40 didn't help a great deal, but heating the cover with a blowlamp did the trick.

Just getting hot enough to release some of the grip on the clip, probably about 150'C as it hissed slightly when I touched it with a wet finger.

I stripped the whole lot down to check it out. Good job I did as the previous owner (of the turbo) obviousl had a piston go, as half of it was still in the turbo.

Bearings are all okay, seals are mostly metal on metal, only rubber ones being o-rings for main cover, and plate behind the compressor wheel.

I will get some pictures up together.

I might have a go at porting it a little, as there are plenty of casting flaws that can be removed.

Paul

 

Paul,

you still gonna make yourself a bigger wastegate out of the spare Plutonium you have in the garage

Trout

 

naa, i don't think it quite warrants it yet. But now I know how to get the exhaust side off without disturbing the rest, I can do it any time. Need to get to my folks place, where the garage is equiped with mill, lathe, pillar drill, welder etc etc.

I think that will be done in conjunction with the "big job" which I am planning for next year, when I don't owe as much money. Head swap, pistons, rods, clutch, hybrid turbo.

I think 400hp should be the target for any self respecting estate car owner. (proper estate, not your impreza wagon stuff).

Paul

 

Out of interest, was the engine / turbo still working before you took it off ?

As with engine bits embedded in the turbo it would be massively out of balance

Please post some photos if you get the chance

Regards
Stephen