D1 300TDi Manual with engine issue

[Jazzman]

My friend has a D1 300TDi that is using oil and blowing smoke. No mechanic has any clue about Land Rovers around him and is too afraid to look at it.

Does anyone know if it is difficult to do a compression test on the 300Tdi? I assume you can just remove the glow plugs and check like on a TD5? Also does anyone between Narre Warren and Trafalgar have a compression tester to suit that I could borrow for a weekend or who would be willing to test if for us?

Any help would be appreciated.

[rangieman]

My friend has a D1 300TDi that is using oil and blowing smoke. No mechanic has any clue about Land Rovers around him and is too afraid to look at it.

Does anyone know if it is difficult to do a compression test on the 300Tdi? I assume you can just remove the glow plugs and check like on a TD5? Also does anyone between Narre Warren and Trafalgar have a compression tester to suit that I could borrow for a weekend or who would be willing to test if for us?

Any help would be appreciated.
Using oil and blowing smoke are signs of rings and or bore [wink11]
Speak to Mars a couple of gaskets a hone and some rings and big ends and a weekend should see you right if the bores are not too bad and all at a good price no doubt [thumbsupbig]

[Jazzman]

Using oil and blowing smoke are signs of rings and or bore [wink11]
Speak to Mars a couple of gaskets a hone and some rings and big ends and a weekend should see you right if the bores are not too bad and all at a good price no doubt [thumbsupbig]

Yeah, that is what i'm hoping for. But I just want to be sure before pulling it all to bits. The engine has only done 150,000 kms since new. I suspect it has been dusted, so cylinder 1 and cylinder 4 will be buggered.

[loanrangie]

Could be your turbo is worn.

[SSmith]

My friend has a D1 300TDi that is using oil and blowing smoke. No mechanic has any clue about Land Rovers around him and is too afraid to look at it.

Does anyone know if it is difficult to do a compression test on the 300Tdi? I assume you can just remove the glow plugs and check like on a TD5? Also does anyone between Narre Warren and Trafalgar have a compression tester to suit that I could borrow for a weekend or who would be willing to test if for us?

Any help would be appreciated.

I am nowhere near the area you have in mind, but i do have a compression tester suitable for a 300tdi. I am willing to lend. Or if you can limp it up my way i can help with the test.

Yes it is just a matter of removing the glow plugs and inserting the tester.

[rangieman]

Does it fume really badly ?

[Bazzle218]

Does it fume really badly ?

I would be checking the turbo in cas you have blown a seal and its leaking into the intake. Easy job pull hose off going to inter cooler and see how mush oil is in it.

[Jazzman]

It does have oil in the cooler, apparently lots. It does fume pretty badly, I've asked him to send me the video of it fuming. By fuming I'm assuming you are referring to what I know as blow by. But i guess it is not blow by if the rings and cylinders are not worn.

Does this suggest a turbo failure?

[Jazzman]

Does it fume really badly ?

Video of blow by / fumingD1 300TDi Blow By - YouTube (https://youtu.be/pjz1ztVrYvc)

[Jazzman]

I forgot to mention the sump is being pressurised. There is no water in oil or oil in water. If the turbo has failed, it is possible the boost is pressurising the sump?

[Jazzman]

I am nowhere near the area you have in mind, but i do have a compression tester suitable for a 300tdi. I am willing to lend. Or if you can limp it up my way i can help with the test.

Yes it is just a matter of removing the glow plugs and inserting the tester.

You are a champion!

[SSmith]

I forgot to mention the sump is being pressurised. There is no water in oil or oil in water. If the turbo has failed, it is possible the boost is pressurising the sump?

Possible, but less likely than other possibilities.

Another known failure is the valve stem seals (would be my guess on such a low KM engine) pop the rocker cover off (can get messy but for only a second or two no harm done) idle the engine and you will probably see the fuming valve - only do this if you are prepared to have oil everywhere! - worse than normal for a Landrover [emoji23] [emoji23]

Otherwise. We can tee up a weekend for the compression tester.

[loanrangie]

That's a lot of blow by, mine at 375k is not even 1/10 of that and much quieter.

[mike123]

I'd check the oil pressure forst and to make sure the pressure relief valve is functionally correctly. Next is the turbo. Oil in the intercooler hose is a concern. Finally, pressure test the cylinders as suggested.

[Jazzman]

Thanks everyone. Will let you know how we go once we have it back.

[Jazzman]

The Disco is back in our hands. However still need to complete a compression test.

[Jazzman]

Compression test at operating temp. 348psi was target spec.

1 = 200
2 = 350
3 = 400
4 = 350

Wish it was more broken. Now do we fix just one? Probably not.

[SSmith]

What is the documented tolerance between cylinders?
348, all cyls within 70 of each other?

Cylinder 1 obviously needs attention, question now is what has caused it?
I don't have a leakdown gauge, but with the adapter from the compression tester any leakdown gauge should be able to work. or just be a little more crude and fill cylinder 1 with compressed air and listen for where the air is leaking out.

Or just whip the head off. Considering it runs pretty well, it shouldn't be too bad inside.
Most likely looking at head gasket leaking into the oil gallery.

[bee utey]

Could be just one broken compression ring, or could be a damaged piston. You won't find out until you look.

[Jazzman]

It is interesting as we thought it may have been dusted. However if it was we expected both cylinder 1 and cylinder 4 to have low compression.

It does blow a fair amount of blueish smoke which smells like diesel.

Another symptom was the sump seal and another seal (maybe it was oil cooler seal, I don't know the specifics of the 300TDi that well) that failed, these 2 seals were fixed by a mechanic.

It just seems too much of a coincidence for it not to be rings, but as you mentioned it could be leaking into the oil gallery.

Thanks for the advice gents.

[rangieman]

Taking bets on broken ring or rings , HG , Slipped gudgeon , Valve ect[bighmmm]

[SSmith]

Realistically we are all just taking educated guesses based on what we can see in your reports.

Further tests or beginning stripdown will determine whether it is leaking down past the rings, through a dodgey head gasked or something else.

Exhaust smelling of diesel is probably cylinder 1 not achieving a complete burn.

Blue smoke is probably oil being burnt - that one is pointing at piston rings.

What makes you think it has been dusted?

The seals that failed, were these recent occurrances, what else has been done recently.

Keep up the good work.

[Jazzman]

We thought it may have been dusted because on Australia Day earlier this year when towing his camper trailer out of Eaglevale the air filter become blocked. When he stopped to change it in a safe place to pull over, the paper filter had began to suck inwards.

Turns out he may have caught it early enough.

The seal failures were recent, the seals where old. It is just Sealastic type sealant.

As you say we'll have to take the head off before being about to ascertain anything else.