4.2TDI Gearbox Should i worry

Transmissions, Transfer Boxes, Axles, Drive Shafts
Tiny Howarth
Senior Member
Senior Member
Posts: 173
Joined: 16 Aug 2014 19:49
Full Name: Graham Howarth
Nickname: Tiny
Home Town: Namibia
Current 4x4: Nissan Patrol 4 x 4 SUV 1999 4.2TDI
Home Language: English
Has thanked: 16 times
Been thanked: 17 times

4.2TDI Gearbox Should i worry

Post by Tiny Howarth » 07 Jul 2015 19:54

Bought this van last September with a slight gearbox noise when idling, depressed clutch no noise, Mayfair gearbox took for drive prior to purchase and said clutch spring, gearbox fine. Not so sure now if clutch spring, changed gear oil and found a small piece of metal stuck to drain plug, noise has not decreased or increased since purchase, should i be worried?
All inputs are welcome.

Wilkie
Patrolman 1000+
Patrolman 1000+
Posts: 1305
Joined: 24 Feb 2014 15:33
Full Name: Errol Wilken
Nickname: Wilkie
Home Town: Pretoria
Current 4x4: 1999 4.5 GRX Nissan Patrol
Rebuilding Nissan safari ldv
2004 BMW 3.0D X5
Home Language: Afrikaans
Has thanked: 57 times
Been thanked: 78 times

Re: 4.2TDI Gearbox Should i worry

Post by Wilkie » 07 Jul 2015 21:54

Hi Tiny
I think ,depending on the severity of the noise ,most hard working cars and vehicle gearboxes make a noise even from new.
When your car is idling in neutral ,the input shaft is turning at engine rpm and there is no load on the gears which tends to rattle a bit,and as soon as you press the clutch,the complete gear train in the gearbox comes to rest,and everything is nice and quite.
If the noise is severe,it is normally the input and layshaft bearings starting to wear(which happens due to lack of sufficient oil changes)
Hope its not serious
:dogrun:

Tiny Howarth
Senior Member
Senior Member
Posts: 173
Joined: 16 Aug 2014 19:49
Full Name: Graham Howarth
Nickname: Tiny
Home Town: Namibia
Current 4x4: Nissan Patrol 4 x 4 SUV 1999 4.2TDI
Home Language: English
Has thanked: 16 times
Been thanked: 17 times

Re: 4.2TDI Gearbox Should i worry

Post by Tiny Howarth » 08 Jul 2015 07:26

Thanks Wilkie, makes sense.
Noise not to severe, sounds similar to a release bearing.
Only thing whats got me worried is the piece of metal i found with the oil change, it could be a part or piece of a bearing race, i spoke to previous owner and he said he never worked on the gearbox, and he had the van for 3 years, he also said he bought it with that noise.
Do you think i should pull the box?
Any idea of what i can expect to pay for change of bearings? i will pull the box myself.

User avatar
Herrie
Moderator
Posts: 3658
Joined: 08 Apr 2009 07:17
Full Name: Kobus Pienaar
Nickname: Herrie
Home Town: Kempton Park
Current 4x4: 1999 Patrol 4500e GRX
1983 Datsun Safari
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 70 times
Been thanked: 83 times

Re: 4.2TDI Gearbox Should i worry

Post by Herrie » 08 Jul 2015 08:36

I also think it is the bearing.
Herrie op Safari/Patrollie
1983 Safari
1999 Patrol 4500 GRX

Wilkie
Patrolman 1000+
Patrolman 1000+
Posts: 1305
Joined: 24 Feb 2014 15:33
Full Name: Errol Wilken
Nickname: Wilkie
Home Town: Pretoria
Current 4x4: 1999 4.5 GRX Nissan Patrol
Rebuilding Nissan safari ldv
2004 BMW 3.0D X5
Home Language: Afrikaans
Has thanked: 57 times
Been thanked: 78 times

Re: 4.2TDI Gearbox Should i worry

Post by Wilkie » 08 Jul 2015 09:57

I think its quite a tricky box to pull and dismantle,that might be the most expensive side of repairs.
What you can do to test and get a better idea of the problem ,is to listen when you driving.. do you hear the noise in any of the gears,or does it get louder as the gear selection goes higher,but in 4th gear its quite and in 5th gear ,you can hear the noise again,if so ,it is the input shaft and layshaft bearings that is starting to fade,but you will definitely hear it .don't go look for noises

maybe if you can put a picture of that piece you found in the oil on the thread
:think:

User avatar
JoshJ
Patrolman 1000+
Patrolman 1000+
Posts: 1038
Joined: 30 Nov 2013 16:16
Full Name: Joshua Joubert
Nickname: Joshua
Home Town: Swakopmund Namibia
Current 4x4: 2003 Patrol 4.8 GRX
Home Language: Afrikaans
Has thanked: 79 times
Been thanked: 84 times

Re: 4.2TDI Gearbox Should i worry

Post by JoshJ » 08 Jul 2015 14:57

Hi Tiny.

You have a pm :salute:
Being alive is a Blessing!!

Regards,
Joshua

Clem
Patrolman
Patrolman
Posts: 756
Joined: 19 Jun 2013 15:16
Full Name: Clem Daniel
Nickname: Clem
Home Town: Johannesburg
Current 4x4: Patrol 4.8
Home Language: English
Has thanked: 29 times
Been thanked: 14 times

Re: 4.2TDI Gearbox Should i worry

Post by Clem » 08 Jul 2015 15:29

Tiny Howarth wrote:Bought this van last September with a slight gearbox noise when idling, depressed clutch no noise, Mayfair gearbox took for drive prior to purchase and said clutch spring, gearbox fine. Not so sure now if clutch spring, changed gear oil and found a small piece of metal stuck to drain plug, noise has not decreased or increased since purchase, should i be worried?
All inputs are welcome.
Well, how big is this piece of metal? Do you have a photograph of it?

It is not unusual to find some small metal particles attached to a magnetic transmission drain plug. If however it is a fairly big chunk of metal, then it is another matter altogether. Even then however it does not necessarily denote anything serious – it could simply have been knocked off by somebody grating the gears.

If you are seriously concerned, then I suggest you go with an oil analysis before you started doing any serious stripping.

User avatar
Russ Kellermann
Patrolman 1000+
Patrolman 1000+
Posts: 1113
Joined: 01 Feb 2010 22:39
Full Name: Russell Kellermann
Nickname: Russell Kellermann
Home Town: Cape Town ,but raised in the Tanskei
Current 4x4: 2007 Patrol 4.2D Pickup
Home Language: English
Has thanked: 1 time
Been thanked: 50 times

Re: 4.2TDI Gearbox Should i worry

Post by Russ Kellermann » 08 Jul 2015 18:14

Metal filings = Acceptable
Metal Pieces = Unacceptable

Hope you get it sorted out Tiny. Would hate to see a good strong box completely totalled due to a small failure somewhere.

Just a warning from personal experience - do not deal with Mayfair Gearbox in Cape Town. Simple as that. I see you in Namibia tho, so hopefully a good gearbox firm close by to help you.

Keep us all posted on the gearbox issue mate.

Russ.
'07 Patrol Pickup TD42 N/A,285's KM2,3" Lift,ONCA Bars,Warn High Mount,Alu Canopy, and some other Stuff.

User avatar
Peter Connan
Moderator
Posts: 4945
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.2SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 187 times
Been thanked: 272 times

Re: 4.2TDI Gearbox Should i worry

Post by Peter Connan » 08 Jul 2015 18:20

I am under the impression that the heavy-duty clutch for the 4.2 Diesel is well known for a clutch rumble. However I can't remember if the rumble occurs with clutch engaged or disengaged.

What size was the piece? In the mean time, I think an oil analasys is probably a good idea.
Mag ons ons kenniskry met lekkerkry aanhoukry.

User avatar
Tinus lotz
Moderator
Posts: 6573
Joined: 29 Aug 2010 13:07
Full Name: Tinus lotz
Nickname: Tinus lotz
Home Town: Centurion
Current 4x4: Nissan patrol 4.8 GRX 2005

Toyota 2.7 legend 35 LWB 4X4
Home Language: Afrikaans
Has thanked: 497 times
Been thanked: 238 times

Re: 4.2TDI Gearbox Should i worry

Post by Tinus lotz » 08 Jul 2015 19:33

Mr boegman's bakkies all got that rumble lets give him a chance to get back on line ...he is working in moz side of the kruger

Post Reply

Return to “10. Drivetrain”

Who is online

Users browsing this forum: No registered users and 0 guests