The V6 Diesel D40 has arrived.
- Thread starter Haf
- Start date
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hunter
Member
Plod if you find the adjustment mechanism for the lights let us know as I will be fitting a set of 4300k 55w HID's and they may need adjusting.
hunter
ozlauterbacher
Member
Hi Guys,
I have experienced the same roar in mine twice now. It happened when the engine was not up to norman operating temperature and I thought it may have been the turbo.
I have also got a distinct hesitation when I press the accelerator from a standing start. Stop at the lights and press the throttle to take off and it almost stalls - getting worse every day.
Doug
I have experienced the same roar in mine twice now. It happened when the engine was not up to norman operating temperature and I thought it may have been the turbo.
I have also got a distinct hesitation when I press the accelerator from a standing start. Stop at the lights and press the throttle to take off and it almost stalls - getting worse every day.
Doug
Doug, pop the air filter out and take a squiz at it. How does it look?
justdrinkbeer
Member
Hi Guys,
I had the same roaring noise from mine, sounded like a thermo fan on steroids, the temperatures in the engine bay are rediculously hot, I opened the bonnet and could barely touch the little rod thing that holds the bonnet up.
On a more serious note, I think my Turbo has shit itself, or is just starting to, has a nasty scratchy bearing noise, especially when backing off throttle under load, if its at about 2000 rpm & back off throttle it gives a squeal, i'll take it to nissan tomorrow and see what they say. Anyone else had this problem? Or any other ideas as to what it might be? I'm not a mechanic.
Rich
I had the same roaring noise from mine, sounded like a thermo fan on steroids, the temperatures in the engine bay are rediculously hot, I opened the bonnet and could barely touch the little rod thing that holds the bonnet up.
On a more serious note, I think my Turbo has shit itself, or is just starting to, has a nasty scratchy bearing noise, especially when backing off throttle under load, if its at about 2000 rpm & back off throttle it gives a squeal, i'll take it to nissan tomorrow and see what they say. Anyone else had this problem? Or any other ideas as to what it might be? I'm not a mechanic.
Rich
ozlauterbacher
Member
I checked it out Tony and all looks OK to me. The Nav has only done 2000 k and it looked clean.
Doug
plod
Member
ChookC In Victoria mate. Will do Hunter.
plod
plod
I wonder if there's a lubrication problem with the turbos? How does your turbo sound?
Game enough to pop the intake off and give the compressor wheel a spin while the engine's cold? Make sure your hands are clean, including under your fingernails, and no dust on the hoses before you pull 'em apart.
I wouldn't mind Rich trying this either, since his turbo seems to be making noise. Could be a bad bearing batch, or perhaps something about the oil delivery system that needs fixing?
DieselTuner2
Member
I had a sneaking suspicion that -2psi or more of intake restriction would take its toll on the turbo.
They used the same airbox that the 2.5 Has had for the last few years on a motor making alot more power and running alot more boost.
With that much restriction it continually places the bearings under more thrust load than usual.
Will be interesting to see what Nissan say the problem is.
They used the same airbox that the 2.5 Has had for the last few years on a motor making alot more power and running alot more boost.
With that much restriction it continually places the bearings under more thrust load than usual.
Will be interesting to see what Nissan say the problem is.
justdrinkbeer
Member
Nissan say its a normal sound, something about boost pressure being released blah blah blah, doesn't sound anything like that to me, more like bearings about to explode.
Will keep an eye on it.
Interestingly the mechanic did check any hoses weren't loose and mentioned that the intake pipe blows up like a balloon on boost, got me thinking about hard piping?
DieselTuner2
Member
Nissan really did cut corners when getting this motor in there.
Normal D40 Airbox, plumbing from the 147kw motor etc...
If they had done it all properly they could have labeled it the STX660 and it would have probably lasted longer than the current ones will.
They use the wire wrap around the hose to try and limit the swelling. But its still not ideal.
Will do a hard pipe kit for them soon enough.
Normal D40 Airbox, plumbing from the 147kw motor etc...
If they had done it all properly they could have labeled it the STX660 and it would have probably lasted longer than the current ones will.
They use the wire wrap around the hose to try and limit the swelling. But its still not ideal.
Will do a hard pipe kit for them soon enough.
I'm going to change my 2.5's air plumbing over to hard pipe sooner or later. Not because it balloons on boost - I doubt mine does - but because I want to make sure they neither collapse nor expand at all.
Your turbo sits on top of the engine's 'V', which means the plumbing around it will be super-hot. I remember my Jaguar's engine was incredibly hot in that region - so hot that it would cook normal spark plug leads. I would imagine that replacing the air plumbing in the V6 diesel would be a brilliant move and I really can't see Nissan having anything bad to say about it.
justdrinkbeer
Member
I bet if the turbo lets go they will have plenty bad to say about the hard pipe!
Northside- Keep us in the loop re any mods you come up with, always interested.
PS i'm heading Brissy way soon if you need another look at a V6 Diesel
frenchie69
Member
First photo of the beast. Shame the canopy has to go on but the dog needs somewhere to sit out of the rain
ozlauterbacher
Member
Frenchie,
What make of fuel tank did you get and what did it cost all up? Iron Man are going to measure my 550 to see if their tank will fit.
Doug
What make of fuel tank did you get and what did it cost all up? Iron Man are going to measure my 550 to see if their tank will fit.
Doug
Hi Frenchie,
The photo did not come through. Sure like to see the rig.
Mine is coming this week.
frenchie69
Member
dont know the make. Got it from Coastal 4x4 here in Perth. Give them a call and ask for Dave. Got all the gear from them including the ECB bar which looks awesome on the car. Nice and chunky
frenchie69
Member
check it out in the Gallery
frenchie69
Member
Hey Chookc.
Check out mine that I took delivery of. ECB black poweder coated with XGT HID (240mm)
