What Head Can I Use On An Xu10j2te Turbo Engine?

[pablo 0]

Have a feeling my head is causing me all sorts of problems. Still burning a bit of oil even after changing the valve stem oil seals and noticed there was actually a hole in it when I had the cam out (under the large cam oil seal at the pulley end).

 

So weighing up putting another head on and see what the story is, if there is an easy straight swap.

 

Thanks all, this problem is really irritating me now, and really spoiling 205 ownership

 

PS - its not the turbo as I had the turbo pipes removed and let it idle and still smoked / compression heathy at 160-170 ish on all 4.

Edited October 7, 2009 by pablo

[James_R 3]

The hole by the cam seal is meant to be there, looks like they broke through machining accidentally, but it was deliberate

 

You can use an 2L 8v head on the engine, just swap the cam (or don't the NASP ones are better)

[pablo 0]

youre kidding me right?

 

Maybe not so bad then. I think it has an NA cam in it already as it doesnt have a groove for the crescent shaped retainer (bolts via a hex bolt to the cam block closest to the pulley)

[M@tt 77]

that hole is found on most heads and is nothing to worry about, part of the orginial head casting.

 

If its still smoking then it might be a couple of things

 

1) the rings/bores could be worn allowing oil up into the combustion camber.

 

2) the oil breather system is breathing heavily and pumping lots of oil back into the inlet track. If you have the standard breather setup then disconnect the one that feeds in before the throttle body just in case its pumping too much oil back in

[pablo 0]

Hi mate on the breather front I plugged the pipe from the oilcap to the throttle body so there is breathing back into the inlet tract. The larger outlet from the oil cap is currently free to air. It puffs on idle but there is no oil in my custom catch can (a biscuit tub) after a run.

 

When I started it for the first time after doing the stem seals it smoked like a motherfukker for a while then seemed to calm down. Was playing football last night so took the 205 and it was fine all the way there, all the way through traffic across town and up the motorway home but started to smoke after a couple of minutes idling on the drive.

 

So next plan is to let it idle till it smokes, THEN do a compression test again and see what the results are.

[Tom Fenton 1,542]

Don't forget the turbo can smoke from the exhaust side, e.g. will still happen with the air side pipes removed.

[pablo 0]

thats a fair point actually.

 

any ways to test?

 

If I removed the turbo would it be easy to see if it was the problem?

 

Thanks for all the help guys, much appreciated.

[pablo 0]

ok turbo is removed. had to dash back into work tho so haven't had a look see yet. So let me get this right. If the seals are weeping in the turbo then oil will get into the exhaust housing and presumably be burnt off by the heat of the turbo? Causing the blue smoke out the tailpipe.

 

Would you expect to see liquid oil in the turbo exhaust outlet or would it all be burnt off? Just looked like black soot when I had a very quick look while it was in my hand.

 

Cheers all.