BarnBiscuit, see what happens with serpentine belt off. If no noise with belt off then reasonable to assume an ancillary.
BarnBiscuit, see what happens with serpentine belt off. If no noise with belt off then reasonable to assume an ancillary.
Yeah, that's the best starting point.
Obviously no belt = no water pump, so only run the engine for a short time.
Also check all bolts and pulleys/bearings for tightness.
Ben,You had the injector pump tweaked , so extra fueling may be causing the more diesel rattle noise.
The Turbo whistle noise could be caused by the boost tweak.
cheers, Mario
Just an update I took my car back to the mechanic and he took a bit of fuel out of it and the noise has quietened down a bit... Along with the performance haha I can still hear it a little but it's less. Now, as Mario was talking about, I'm also hearing a bit of a whistle but only when accelerating at high speeds of around 80-100. If I take the gas pedal off the whistle goes away, put it back on and the whistle is back. I'm guessing that could be some kind of hole in a hose somewhere..?
Ooh, if you do increase fuel is there a way to get rid of the diesel rattle that comes with it? And is it a bad noise or just annoying?
Most diesel engines usually are noisy buggers, It's the price you pay for having one.Quote:
Originally Posted by Young Angus
All of my Hilux and Nissan diesels have been noisy compared to my 6cyl and V8 petrol motors But None of them have carked it on me.
It's only a small diesel, don't expect too much performance from them. They are designed to reliably just chug along like a fergie tractor.[biggrin]
Sounds like you may have a "missing" Valve Lash Cap, loosen off the rocker shaft without removing and check all "Lash Caps" are there.
Aftermarket lash caps (Crane) are available and recommended, Regards Frank.
Is that response aimed at the rattle or the whistle? I'm tipping maybe the rattle..?Quote:
Originally Posted by Tank
Thank you either way :)
And yeah I know the 300Tdi is just a little diesel, in a very heavy truck! I don't want amazing performance from it but the mechanic (Uptech) seemed to think it was okay to give it that little more juice and I was just curious if that rattle I was hearing (or knock I think) was actually a bad harmful thing, or if it's just something to get used to and is perfectly safe to have there if it doesn't drive you too crazy :D
Could just be the normal turbo whistle.(but of course could be a slight leak somewhere too.Quote:
Originally Posted by Young Angus
Do you have a boost gauge fitted?
if so, what kind of max boost do you see.
I think normal boost is about 15 PSI(no idea what that = in ATM's or kPa's).
Maybe the new fuel adjustment may be giving just a tad more boost, and now you can hear it more clearly.
I've read that you can boost the Tdi to 20 psi, so I adjusted my boost controller to max at about 20-21 PSI. Very rarely see that tho, as my right boot is Helium filled.[wink11]
Ever since I adjusted my boost from it's old 15 PSI to 20 PSI now, I can hear the turbo whistle a bit more clearly than before.