300 tdi - turbo gone?

[dfen5]

Driving back tonight noticed a sound come on when accelerating. Bit of dry, bearing type of noise. Popped the bonnet when home, noise appears to come from turbo area. Pulled the air pipe off from the air box and noticed about 1mm up/down/left/right play in the end of the shaft, plus it's quite black with oil. fked?

Any recommendations on where to buy one?

[camel_landy]

It might be the oil supply that's gone...

The turbo unit effectively uses oil as a bearing. As such, when the oil has drained away, there will be some movement in the shaft. The amount of movement you're describing sounds about right.

There is very little to go wrong with these engines but are there any other symptoms? Smoke (if so, what colour)?

M

[anonymous-user]

A failed exhaust manifold gasket sounds exactly how you describe.

[dfen5]

No smoke (sometimes I notice a very small bit wafting away after it's been started after being stood for a week.

Will check the gasket this evening. I did also notice a little play in the top serpentine belt tensioner but that's not where the noise is from.
How can I check the oil supply?

Edited by dfen5 on Monday 5th August 07:54

[camel_landy]

Have a nosey around the gasket first... Without being there myself, it's hard to diagnose a 'noise' but it's sounding like the turbo might be ok.

Tip: Use a short length of hose like a stethoscope.

However, another quick check would be to rev the engine & see if the noise is still there immediately after the engine is turned off. If it is, it _could_ be the turbo as that will take a moment to spin down.

M

[dfen5]

Thanks for the info' all but massive misdiagnosis on my part. Noise was echoing from the water pump but also the top tensioner had a lot of play.

Just done both, just over a hundred in parts plus an afternoon of my time. Would have been less were it not for a landy owner stopping by to chat Viscous fan (l/h thread btw) spanner was a worthwhile purchase. Old water pump was shagged, really noisy but I think it was a cheap aftermarket job..

Whilst in the motor factors I picked up some Millers diesel additive. Wow, difference after 4 or 5 miles very noticeable, engine smoother and quieter. Clot of smoke threw out after 7 or 8 miles, better again.

Forgot to say exhaust comment was spot on, nut/stud by dipstick tube was hanging out!

Snapped the plastic filler plug off the thermostat housing. Replaced with a brass 1/2" bsp fitting from b&q - fits a treat!

Edited by dfen5 on Saturday 10th August 21:02

[bearman68]

Having said all that a 1mm movement in the turbo shaft spells trouble in my opinion. I'd offer advice about getting it changed sooner rather than later.

[dfen5]

bearman68 said:

Having said all that a 1mm movement in the turbo shaft spells trouble in my opinion. I'd offer advice about getting it changed sooner rather than later.

Yeah I was thinking it'll be playing on my mind unless I get it replaced. Not a daily driver so no great rush, just trying o decide who to go with.

Seen this btw? http://youtu.be/ahbCMhPhjnM Think mine is more ex.1 than ex.2.

[bearman68]

Mmmm. I can only offer my experience in these matters - if I was seeing No1 I would be humming and harring about the quality of the turbo.

I changed a golf turbo the other day - defo No2, and really really you don't want a turbo to go down. The clean up operation takes ages, and is messy, dirty, unpleasant and awkward.
Anyway, the new golf turbo had no play that I could feel with my fingers, so that's obviously what it should be like.

If it does go, don't forget you may need to stall the engine to prevent it overrunning (Otherwise you'll cook your engine as well).
Apologies if you already know this, but better to mention it maybe.

[bearman68]

Ooo forgot, I've bought loads (6) from GAP turbos in Birmingham. Never had a problem with them, and would use again. www.gap-turbos.com (No affiliation)