The smoke on overrun and tickover is now at silly levels so I started striping the car ready for engine removal, (its fitted into an s13), started with a compression test, 2 cylinders at 145, 4 at 150+.

 

There are no signs of any contamination with oil on the inlets, so hopefully its just worn oil seals on the exhaust housing end.

 

Going to rebuild both using diy kits, should be interesting, will add some pics as I go.

You might want to post this in the Z Related General Discussion as it is still about the engine of a Zed :)

http://www.300zx.co.uk/forums/showthread.php?t=45076

 

This might help you Fry1

 

Oh and dont forget, the compressor nuts are LEFT HAND THREAD!!

 

:duffer:

compression doesnt sound so bad there, i believe 150+ is a very good figure - only a problem below 130??

 

Good luck! If you fancy doing mine as well let me know! :D

Cheers guys, Its a do or die fix in time for JAE, wasn't too sure where to post it.

 

I run the engine in using the make sure nothing drops off for a few miles then cane it, its been running fine for a year now apart from deteriorating turbo's.

 

Got the front part stripped fairly quick, rad, ic pipes, afm etc, got to remove the whole steering column and rack too before the block can be pulled, some things are better than a zed to get at some are much worse.

 

Guides will be great help, just need to dig up the part numbers for the rebuild kits

there is a guide somewhere.

one which i used floating about somewhere.

real easy job its just fiddly and i made sure i went over them 3 times just to be 100% sure everything was in the right place etc.

Got the engine out of the car or rather the car up from the the engine, supported the engine and gear box and lifted the car up, would have been easier with the plenum or the throttle bodies off as the tps drive was very close to the chassis.

 

Is it easier to remove the turbo from the manifold or remove the manifold then the turbo ??

I've always removed the Turbo from the manifold.

I've always removed the Turbo from the manifold.

 

Cheers, will hopefully get them off in the next couple of nights and get them stripped on the dinning room table.

a z32 powered s13 sounds very interesting fry .....i bet its a tight fit though !!

http://www.conceptzperformance.com/Cart/description.php?II=2409&Car_Type=NIS300&UID=

 

These may be a more viable option if you had some more cash?

a z32 powered s13 sounds very interesting fry .....i bet its a tight fit though !!

 

Yes very, the engine bay on the 200 is wider than a zed between the suspension tops but the 200 chassis is narrower right where the turbo's sit.

 

http://www.conceptzperformance.com/Cart/description.php?II=2409&Car_Type=NIS300&UID=

 

These may be a more viable option if you had some more cash?

 

They would be nice but this is cheap skate a short term fix, I'm fitting a pair of tdo5-16g's scrounged from an evo 3 in the winter

Well the body count so far, passenger side off and one bolt snapped off on exhaust housing, "great", soaking in oil as circlip appears to be welded to turbo :D

Yes very, the engine bay on the 200 is wider than a zed between the suspension tops but the 200 chassis is narrower right where the turbo's sit.

 

 

 

They would be nice but this is cheap skate a short term fix, I'm fitting a pair of tdo5-16g's scrounged from an evo 3 in the winter

 

Silly question but do these bolt straight on?

nope :(

Stripped the first turbo and I think its safe to say its beyond help.

 

Compressor wheel has a lot of minor damage to the blades, heat shield on the zaust end is starting to split, main shaft looks like it may be pitted slightly, I'm going to remove and strip the other side sun afternoon, its not looking good so far the first tubby was the one I thought was in the best condition.

 

I have another spare turbo so hopefully I will be able to salvage 2 out of the three, I found a fairly easy way to refit the small circlip's in the centre so its not been a total loss and I now know how to strip it, next one should be quicker.

Drivers side turbo off and stripped and not much better than the other side

 

notice both bolts that snapped are in same location

 

Thrust bearing looking a bit scorched, its well worn too

 

Heat shield good coating of carbon and burnt crap

 

Zaust wheel, the oil seal has a lot of carbon in its groove

 

Zaust wheel end bearing scored

 

Zaust housings getting drilled and tapped, rebuild kits turned up, Melett very nice to deal with and sorted out the courier, who delivered them to the wrong door.

 

Going to remove oil lines from the block as drivers side looks a little on the dry side compared to the other side, are vg's prone to problems with oil delivery to turbo's ????

i dont think so

i dont think so

 

Fingers crossed then:D, they are old turbos and have had a very hard life in the last year, its a small wonder they aint imploded long before now

looking at all that scorched metal the name fry1 seems very appropriate :)

are vg's prone to problems with oil delivery to turbo's ????

 

Yes they are lines can get blocked or have a kink in them!

Edited August 21, 200817 yr by TopLess

Yes they are lines can get blocked or have a link in them!

 

Great :wack:

The L/H in particular has a restrictor in the oil pressure switch housing. From memory is is drilled about 1.1mm diameter.

 

Just poke a bit of MIG wire in there to clear anything. Whatever you do, don't drill it out any bigger, it is there to restrict oil flow to the turbo. In the event of turbo faliure this prevents all the oil being dumped to the turbo and running the rest of the engine at greatly reduced pressure.

 

I.E. It's easier and cheaper to replace a couple of turbos than to rebuild a bottom end ;)

 

HTH

 

Rob.

Just order a set of armoured oil lines and that is it problem solved!

If they replace the block that the stock gauge sender screw in, then yes that is indeed problem solved.

If you are concerned about the restriction in that metal block, it isn't an issue, the oil lines usually carbon up or get kinked in mechanical work, restrictions of that size are not unusual on the engine.