MatraSport Forum

Hi all,
I am in the middle of replacing the exhaust manifold gasket. I also needed to check out the turbo unit. I am concerned that there may be excessive shaft play in the turbine which may explain the presence of oil in the inlet manifold, and some found in the Turbo. I think I have about 1mm of up and down (vertical) movement. Since there is 150,000km on the Espace I thought about getting a replacement unit or new unit.
I was shocked at the price differences. Renault want 2,000 Euro? Others want anything up to 1,000 euro and I would have to give back my old unit.
Plus I can't seem to find an exact match for the unit because the numbers don't match their catalogues? Just in case anyone knows what is on my espace here is the number set on the turbo. Make is  Garrett, 454067-C . Also a Renault part number (7700872214) and other numbers which are: YA 1917FTB0270

The question is am I being over the top with the 1 mm movement. 2) Does anyone recognise the turbo unit I have. 3) Is it possible to get a repair kit. I don't have the Espace very long so i am unable at this point to comment on "normal" oil consumption but.. it would be great if anyone could give some feedback on the Turbo.

Thanks

Hi,

I asked my friend who has worked a lot on these diesel engines, and he thinks there's nothing wrong with your turbo. He has one that he is using now that has covered about 400,000 kms. He also has one that has done 100,000 kms and he feels no difference between the two regarding shaft play. So it's not likely you will have wear in yours. The pressure is no more than 0.7 bar, so the turbo is not loaded much in Espace. The oil you are finding in your inlet manifold is probably from the engine block where toxic gasses are lead into the inlet manifold just before the turbo. This air is always a bit oily.

You will need a clean air filter to ensure too much vacuum in the engine, otherwise the engine will be taking as much as possible from the engine block.

Hope this helps,
Anders

I 'm not sure I really understand this sentence ?? - but I think the message is that you always should have a clean airfilter. (?) - which of course is a good idea.

As inlet air is mixed with camshaft/engine-block air, you will always find a little oil in the equation, but of course, with a diesel engine you'd want to make sure tit is never enough to run the engine by "itself". Which is the only real hazard of diesel engines.

/Lennart

As I understood Erik, the hose going to the engine block is connected after the filter - so if the filter is blocked, the inlet will start sucking lots of oily air into the inlet manifold.

Anders, Erik,
Thank you for the replies. I have driven Renault vehicles in the past where they "suck" oil from the oil pan (Sump). Its not a nice experience as the vehicle will continue to accelerate to a very high engine speed. I have to keep that in mind when I put my espace back on the road.

What I am going to do is finish the work on the manifold gasket and put back the Turbo unit. I will check all the hoses and breather pipes to make sure that they are clear. As I will be servicing the Espace fully I'm going to be including a new air filter as well.

If anyone has any more to add on the identification numbers or a good (low priced) supplier please let me know. Renault does not even supply the little rubber boost pipe from the vacuum chamber to the turbine housing. Very frustrating!
Cheers!
Espaceman..........

Hi All,
Just thought that I would give you an update to my Turbo problem. Well.... it is indeed gone!. I have learned a lot over the past few weeks (despite being a tech) about turbos. Idecided to get the injectors and diesel pump checked and the professionals told me that the pump was bad and full of dirt. They said that my Espace either had a turbo problem and its fixed or... it has a turbo problem.
Apparently my turbo unit has suffered from abuse during start up and shut down.  The excess movement in the shaft was enough to cause the engine oil to be sucked accross the shaft and into the inlet manifold. I took out the intercooler unit and there was about 5mm of oil in the bottom.  So... I'm looking for a new Turbo unit.  Renault priced the unit so expensive I need to take out a bank loan. So if anyone can recommend a replacement turbo company anywhere, please let me know.

Espaceman

I'm new to the forum and have only just read your post so I guess that you may well have found a supplier... or taken out the bank loan!!

If you haven't done either yet then you could try

http://taiteuroturbos.com/

Taits are specialist suppliers of new and re-conditioned turbos and can also supply repair kits for most makes such as Holset, Garrett, Switzer, KKK, IHI, Cummins and Mitsubishi.

I have good experience of them from the day-job. We needed a turbo for a 10.8 litre, 290 horse power loading shovel engine. Cummins needed 10 days to supply as they only had stock in the US but Taits had one in stock that arrived next day and at half the price.

Martin

I just bumped past this one whilst browsing fleaBay..

http://cgi.ebay.co.uk/RENAULT-ESPACE-2-2-dci-TURBO-TURBOCHARGER-TURBOLADER_W0QQitemZ190033267496QQihZ009QQcategoryZ10410QQrdZ1QQcmdZViewItem

Didn't read much about it but migth suit you :)