Turbo-disaster / Part two

Sooooo… after a couple weeks of constant shifts and miserable weather am back into it today.


Just a little oil*** in the inlet pipe leading to the inter-cooler


Have pressure tested the system from the turbo side to the inlet manifold side and it holds 14lbs/in2 no problems and will repeat when it goes back together so that there should be no problems causing over spooling etc.

Then pulled the inter-cooler and pipework out and flushed it out; all clean and no nasty bits from the disintegrating turbo.

Bad stuff….inlet manifold is full of sludge and exhaust manifold is full of oil, so quite a lot of oil went through the engine which might have accounted for the engine knock heard just before shutdown. Anyone have any thoughts???

LennyK said:

Sooooo… after a couple weeks of constant shifts and miserable weather am back into it today.

View attachment 130548
Just a little oil*** in the inlet pipe leading to the inter-cooler

View attachment 130549
Have pressure tested the system from the turbo side to the inlet manifold side and it holds 14lbs/in2 no problems and will repeat when it goes back together so that there should be no problems causing over spooling etc.

Then pulled the inter-cooler and pipework out and flushed it out; all clean and no nasty bits from the disintegrating turbo.

Bad stuff….inlet manifold is full of sludge and exhaust manifold is full of oil, so quite a lot of oil went through the engine which might have accounted for the engine knock heard just before shutdown. Anyone have any thoughts???

Click to expand...

Damn. That heavy oil in the inlet is almost certainly what made the heavy knock. Engine oil doesn't burn easy and as it is just "there" not atomised by the injector it burns slowly causing the knock. Can damage gaskets and piston crowns. What's your cylinder compression test results? Satisfactory?

Shortbase said:

Damn. That heavy oil in the inlet is almost certainly what made the heavy knock. Engine oil doesn't burn easy and as it is just "there" not atomised by the injector it burns slowly causing the knock. Can damage gaskets and piston crowns. What's your cylinder compression test results? Satisfactory?

Click to expand...

Haven't got that far yet....still hopeful.
Really hating the guy who didn't put a pre-heat in number one cylinder about now.

Turning into a learning experience!!!!….and not necessarily a good one either.

Lenny was bought off of a “MECHANIC” in April with the head having been overhauled in an engine out check that included new clutch etc.

Few weeks later the turbo blows in a big way (bushes totally stuffed)

While pulling parts off today I note that the filter has a date written on the back of it…from when it was last changed I presume which reads 14/11/16 mmmmm. Didn’t want to change that then during the overhaul.

Pulling of the inlet manifold I find two of the bolts are stripped…starting to get a little miffed about now.

Not what I really wanted to see....

Really REALLY hating the guy who didn't put a pre-heat in number one cylinder about now.

It does look like it's head off time unfortunately

LennyK said:

Turning into a learning experience!!!!….and not necessarily a good one either.

Lenny was bought off of a “MECHANIC” in April with the head having been overhauled in an engine out check that included new clutch etc.

Few weeks later the turbo blows in a big way (bushes totally stuffed)

While pulling parts off today I note that the filter has a date written on the back of it…from when it was last changed I presume which reads 14/11/16 mmmmm. Didn’t want to change that then during the overhaul.

Pulling of the inlet manifold I find two of the bolts are stripped…starting to get a little miffed about now.

Click to expand...

Why pull the head off again, was it running ok before the turbo blew up?
You may be just spending extra money and time for no net gain.
Clean up the bit you've off the engine, the oil in the exhaust will burn out in the first run, the two stripped manifold studs can be "hellicoiled".
Before you decide to pull the head just turn the engine over by hand, (socket and bar on the crank pulley bolt), if it turns over freely and has compression and you cannot hear compression pi55ing out of any valves, (easy to hear with manifolds off), just put the manifolds back and set up your new turbo, check the turbo bearing oil drain is absolutely clear, box the lot up and enjoy your savings.