Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

noisy diesels

Tech Talk for Nissan owners.

Moderators: toaddog, V8Patrol

Post Reply
Posts: 368
Joined: Tue Jan 18, 2005 12:06 am
Location: scotland

noisy diesels

Post by lexi »

I have 93 gq td42 with 178 k on it. I have had a fair load of diesel vehicles over the years but I find this Patrol has almost an engine sound of its own. Don`t see many over here but managed to hear one the other day and it sounded exactly like mine......a kind of chuffing whirling sounding diesel. Sound familiar to you guys? I actualy prefer the sound of my little 2.25 Landy diesel unit. Patrol is bog standard. Anyone else got an opinion on the sound of it?
Alex
Posts: 4275
Joined: Fri Nov 22, 2002 6:41 pm
Location: Western Australia

Post by Hoonz »

tappets need adjusting
see gregorys service manual on how to adjust
H( * )( * )NZ loves B( * )( * )BIES
if a fat lady falls in the forest do the trees laugh?
[quote="RUFF"]although i didnt mean to, i squealed like a girl :armsup:[/quote]
Posts: 1949
Joined: Wed Oct 23, 2002 7:44 am
Location: Melbourne, Australia

Post by MKPatrolGuy »

Hoonz wrote:tappets need adjusting
see gregorys service manual on how to adjust
How often should the tappets be adjusted?
[size=100][url=http://www.vickrawlers.com/]VicKrawlers.com[/url]
[url=http://www.drfwdc.org.au/]Dandenong Ranges 4wd Club[/url][/size]
Posts: 368
Joined: Tue Jan 18, 2005 12:06 am
Location: scotland

Post by lexi »

I wouldn`t have said it was valve clearances myself but I will check it out . Anyone else have a comment on the sound of a td42 as a diesel engine?
Posts: 303
Joined: Tue Mar 22, 2005 2:47 pm
Location: NZ

Post by DieselBoy »

Love it to pieces!!!!!
Bigger pipe and a we bit of performance tunning and they go like a cut cat.
All thats lacking is a bit of sound proofing under the bonnet and around the fire wall on the earlier modles such as mine.
We have series three LWB LR with the standard diesel. Horrible. Just Horrible. Noisey clunky sounding old thing. And thats after its been rebuilt.
Posts: 368
Joined: Tue Jan 18, 2005 12:06 am
Location: scotland

Post by lexi »

DieselBoy wrote:Love it to pieces!!!!!
Bigger pipe and a we bit of performance tunning and they go like a cut cat.
All thats lacking is a bit of sound proofing under the bonnet and around the fire wall on the earlier modles such as mine.
We have series three LWB LR with the standard diesel. Horrible. Just Horrible. Noisey clunky sounding old thing. And thats after its been rebuilt.
Thanks Diesel Boy
When you say bigger pipe do you bin everything except the original manifold and just build a new system with same amount of boxes but say two and a half inch pipe. I like the engine too but in modern terms it is as underpowered for its size as Rovers old 2.25.That is prolly why it lasts so long.Saving grace is that its tuneable cos of its strength but that means money. Rover diesel is bound to be noisy.........it was designed in 1958........
Alex
Posts: 625
Joined: Fri Feb 20, 2004 12:04 am
Location: Melbourne

Post by Woop »

Noisy engine can be: Over advanced injection timing,excessive tappet clearances--should be 0.35mm exhaust/inlet--removing glow plugs helps with turning over engine when adjusting, and worn valve rockers--common if engine has been run on incorrect grade of oil or had missed oil changes..

nick
Posts: 368
Joined: Tue Jan 18, 2005 12:06 am
Location: scotland

Post by lexi »

Thanks Nick.
You dont think that the td42 has a totally different sound to cruiser 80 say although I know that has a turbo. I still think its a funny sounding engine As I say I heard one the other day and it sounded the same.......kind of brash.
Alex
Posts: 172
Joined: Thu Jul 15, 2004 7:34 am
Location: Denmark

Post by Hobbz »

I heard one myself about a month ago and yes it sounds more rough than other diesels, my 2.8 TD sounds much more smooth compared to the 4.2 ...
I guess that's just how it sounds ;)
GQ 2.8TD. OME. 35 BFG. Fact. Rear Locker on steroids. Air Locker front. Gearmaster Reduction. 6HP Warn 8274.
Posts: 368
Joined: Tue Jan 18, 2005 12:06 am
Location: scotland

Post by lexi »

Yeah thats it......rough. Maybe that`s why I like it. A big mother fucker tractor engine. Great driving GQ in Scotland. Drive for a day and you just might see another one. I`ll stick with them.
Alex
Posts: 303
Joined: Tue Mar 22, 2005 2:47 pm
Location: NZ

Post by DieselBoy »

I cheated, i left the pipe the orgional diameter and just romoved all the resrictions, eg, silencers, resonator and flexi joint.
Replaced with a single straight through silencer box.
Big improvement.
Going to 3" pipe on a NA TD42 is quite common over here, but i doubt its really that effective.

Advancing the injector timing up to .075 BDC makes a huge improvement on performance, but more smoke and a noisier engine.
New injectors set to a higher pressure make a big difference also.
I run a foam filter to.

Am starting to get pissed of with people thinking its turboed!!!!!!

I also have a Holly fuel pump , but thats to combat fule starvation caused by the above changes :lol: :lol:
Posts: 8
Joined: Sun Aug 07, 2005 3:04 pm
Location: Adelaide Hills

Post by Captain Patrol »

I just brought a 94 RX 4.2D. 160km It sounds like a tractor at idle, but smooth as when under load!!

Sounds tuff, had the whole thing checked out and that just how they are. Have looked at lots of diesel's in the last few months and the Nissans are a tad more rattly, but tough!!
Posts: 368
Joined: Tue Jan 18, 2005 12:06 am
Location: scotland

Post by lexi »

Listen guys. I`m overwhelmed at all the input on this thread cos theres no info here in Scotland. Even mechs. at main stealers aint worked on one not that I would give them mine to practise on. Thanks.

Alex
Post Reply

Who is online

Users browsing this forum: No registered users and 0 guests