Split hoses and rusted pipes!

[arcascomp]

Spent a mildly uncomfortable hour or so yesterday changing the fuel line from tank to about midway underneath with what I had left of braided clear hose, seems better on tick over, but still getting air in the fuel line :doh Going to buy more and run one long piece front to back.

However while having a guddle about I noticed a number of little woes, firstly there is a (I assume) breather pipe from the gearbox comes up from underneath beside the fuel lines and ends in a wee shepherds crook high up on drivers side. This has rusted right through down near where it's clamped to the chassis, I'm guessing this is bad :nenau and should be fixed.

Also, while considering sticking a ball bearing up the EGR's vital tubes :naughty I noticed that most of those wee vacuum tubes were a bit perished including one that goes onto a brass thingy at the back of the big pipe with 'turbo' written on it. What's that for anyway? (I have a TD - no intercooler) is this something related to the EGR?

Cheers,

Craig.

 

[melissachels]

Spent a mildly uncomfortable hour or so yesterday changing the fuel line from tank to about midway underneath with what I had left of braided clear hose, seems better on tick over, but still getting air in the fuel line :doh Going to buy more and run one long piece front to back.

However while having a guddle about I noticed a number of little woes, firstly there is a (I assume) breather pipe from the gearbox comes up from underneath beside the fuel lines and ends in a wee shepherds crook high up on drivers side. This has rusted right through down near where it's clamped to the chassis, I'm guessing this is bad :nenau and should be fixed.

Also, while considering sticking a ball bearing up the EGR's vital tubes :naughty I noticed that most of those wee vacuum tubes were a bit perished including one that goes onto a brass thingy at the back of the big pipe with 'turbo' written on it. What's that for anyway? (I have a TD - no intercooler) is this something related to the EGR?

Cheers,

Craig.

The breather pipe i think ur reffering 2 (comes off the slave cylinder and runs to the back of the car along with fuel lines) should be a damper pipe block this off just at the 3 way junction block, many methods, I took the pipe cut and folded it bac on its self (same as u roll down a toothpaste tube) heated it up n clamped it with mole grips therefore welding it shut to its self,
The vaccine pipe just go into b&q and get 5mm clear plastic pipe, u'll need 3mtrs (was 1.08 per mtr) plus a bag of tiny cable ties just cos the a little bigger than original, just do them one by one all required is plyers n poss a stanley, I did them yesterday in bout 10 mins :thumb2i

 

[arcascomp]

The 'breather' is definitely coming up from the gearbox and is shaped at the top to stop water running down it, so I'm guessing it being in two pieces is a bad thing! Might just use a bitty rubber hose to join the two bits back together.

 

[arcascomp]

Cheers about the vacuum pipe Mel, will drop by and have a look, although I did wonder if I could disconnect some as I was intending to ballgag the EGR anyway :naughty

 

[R1cho]

TD = Turbo Diesel
TDI = Turbo Diesel Intercooled

so you do have a turbo

 

[arcascomp]

Yep, Turbo, but no intercooler - might have been a bit unclear there, it's the brass thing behind the turbo pipe I'm wondering about, is this a waste gate valve or a part of the EGR system? I'll try and get a photo of it if the pesky rain would give over!

 

[arcascomp]

Hopefully this'll work and show a pic of what I'm trying to describe..

 

[Kamsin]

not sure about the TD but i disconected all of mine and blocked them all off. That is the vacume part you have indicated. i bypassed mine and wedged the valve open.

 

[arcascomp]

Sorry Kamsin, being thick, is that part the bit that makes the vacuum? or is it controlled by vacuum?

Is it meant to open at some point? if so, how can I test if it's working?

Cheers.

 

[arcascomp]

The vaccine pipe just go into b&q and get 5mm clear plastic pipe, u'll need 3mtrs (was 1.08 per mtr) .....

To save me wandering around B&Q gormless and being distracted by the shiny shiny things, which department was the tubing in? Is this the stuff used for plant irrigation or is it in the plumbing bit?

Ta.

 

[melissachels]

To save me wandering around B&Q gormless and being distracted by the shiny shiny things, which department was the tubing in? Is this the stuff used for plant irrigation or is it in the plumbing bit?

Ta.

its down where the door handles n chain for padlocks ect are, i know i'm the same but then again i know i can generally get the shiny things elsewhere for less :naughty

 

[arcascomp]

Still to get any pipes sorted, weathers nice but son has Standard grade exams and has no idea how to study! Spending our spare time trying to cram in stuff to a resistant teenage head!

So back to my picture of that vacuum doohooky thingy, is this part of the egr system, if so what methods do I have to disable? Can I undo this bit without needing to buy gaskets and stuff to refit?

You may be able to tell that I am no specialist here.

 

[solarman216]

Hopefully this'll work and show a pic of what I'm trying to describe..

This is a silly device that I believe is supposed to shut when you stop the engine, it is supposed to stop bad engine rock on shut down so I am told, bin it.

Re the gear box breather, yes the transfer box gear box and both diffs are all linked to a common pipe that as you say terminates at a hook on drivers side engine bay, if you go near water then not only will it get into the box but diffs too if it is not repaired, Rick

 

[solarman216]

Oh yes forgot to say best way to disable the EGR is a copper blank plate on the EGR valve itself, just stopping the vacuum is not good enough as these valves leak at the best of times, Rick

 

[arcascomp]

This is a silly device that I believe is supposed to shut when you stop the engine, it is supposed to stop bad engine rock on shut down so I am told, bin it.

Thanks for that Rick, I've watched it while idling and it doesn't seem to do anything will have to double check, but I'm fairly sure it does nowt when the engine is stopped too. If I take off the vacuum pipe to it, will that keep it open or closed for a quick test?

I realise that a blank on the EGR is best, but in the meantime I'll ball gag it to begin with. Ideally I'd take the whole inlet manifold off and clean it out, but I guess that'll involve a bunch of gaskets, and I can guarantee that I'll get one missing or the wrong one, I'm lucky like that! :doh

 

[arcascomp]

So, finally a day without other duties and less rain than recently, took the truck for a run up the M9 to find that it's struggling to get above 55-60, almost as if the turbo isn't kicking in at all. Also when I rev it at idle I'm getting a lot of blue/white smoke out the back at 2-2.5K revs (high as it really wants to rev!)

I tried the PVC pipe to the EGR and it seemed worse so, as it wasn't as tight a fit, took the best bit of the old pipe that's solid and put a short piece on EGR and at the other end of the run, both blocked up which makes it drivable around town again.

The wee pipe to the valve that sits on the turbo and operates the waste gate (?) seems okay but I can hardly move the gate manually, should I be able to? if so, which way should it move?

I've still to replace all of the fuel line as there is still a bit of air getting in, but not much - I'd be surprised if that's causing this much trouble. Will get down under later and fix that.

Any other suggestions?

It's the older TD engine in mine, so less sensors and no intercooler getting in the way.

Cheers.

 

[manora]

You really will have to sort out the air in the fuel line problem before trying other things.
Diesel pumps rely on hydraulic pressure to open the injectors and even the smallest amount of air will prevent the injectors from opening properly.
Peter

 

[arcascomp]

Okay, air problem resolved, truck still resisting revving beyond 2.5k and smoking a lot at those revs, white/blue smoke.

attached pic of bit I was referring to on the turbo earlier, should this be moveable?

feels like my Skoda did when a turbo vacuum pipe went and the fact I've just guddled about with the vac pipes does worry me that I've made it worse (it hasn't been great since I've had it).

I did notice that the doofer I posted a pic of earlier in the thread is now definitely doing things as it moves when the revs go up, not sure this was happening before.

 

[manora]

Yes it should move, it's the waste gate for the turbo but can be hard to move by hand. Disconnect the rod and the arm bit on the manifold should move freely.
Apply a bit of suck to the other bit will prove the diaphram is good or not but it needs a good bit of vacuum to actually move it and revving the engine of load may only make it twitch.
Peter

 

[manora]

Sorry, that should be "revving the engine off load"