Go Back   The Navara Forum > D40 > D40 Engine

View Poll Results: What Oil Filter Choices Have You Made?
I've never had a timing chain fail 48 76.19%
My timing chain has failed, only ever had genuine oil filters 6 9.52%
My timing chain has failed, used aftermarket oil filters 9 14.29%
Voters: 63. You may not vote on this poll

Reply
 
Thread Tools Display Modes

  #21  
Old 19-02-2015, 09:54 AM
camo.b's Avatar
camo.b camo.b is offline
Advanced Member
 
Join Date: Feb 2011
Location: adelaide hills
Posts: 2,288
My Mood:
Garage
Default

Strange how some get a cold start rattle with "other filters" and some do not..could it be a thai /spanish thing?
Reply With Quote
Sponsored Links

  #22  
Old 19-02-2015, 09:59 AM
Old.Tony's Avatar
Old.Tony Old.Tony is offline
Administrator
 
Join Date: Oct 2009
Location: Mid Coast Region, NSW, Australia
Posts: 15,208
My Mood:
Garage
Default

It's certainly possible. Who manufactures the tensioners for the Thai/Spanish builds? If the tensioners all come from one factory then I'd say the chance is slim, but if Thai trucks get a locally-sourced tensioner AND the Thai builds are more prone to failure, you'd have to think it's in the build.

And that - in my opinion - makes EVERY one of the failures the direct responsibility of Nissan Motor Co.

And that's also part of what this thread is about. If it were an issue about genuine filters or not, you could then put the blame of the failure onto the owner for choosing aftermarket filters, but that's clearly not the case here.

I think we should now look at where each truck came from.
__________________

Check out the FAQs by clicking here!



"Money can't buy happiness, but it does make misery a lot easier to deal with."
Reply With Quote

  #23  
Old 19-02-2015, 11:33 AM
kernels kernels is offline
Member
 
Join Date: Sep 2013
Location: Auckland
Posts: 298
Default

It may also be worth tracking chassis numbers to see if there are any patterns.
__________________
2013 Navara D40 ST, Thai built, kiwi version
Reply With Quote

  #24  
Old 19-02-2015, 04:49 PM
lookskyward1 lookskyward1 is offline
Member
 
Join Date: Sep 2010
Location: Isle of Mull, UK
Posts: 107
Default

As previously posted, my bottom timing chain failed at 106K miles. My D40 is a Spanish built 2007 Euro4 model. From new it was in company ownership and serviced by Nissan at the scheduled 18k miles intervals.

On taking ownership, at 80k miles, I only ever used Mobil1 0w40 Diesel oil and changed the oil and filter at much more regular intervals of 6k. The first oil filter I used was a quality aftermarket one but it was obviously allowing drainback and at the next service and after, I only used genuine filters. The drainback of the oil was causing the oil light to remain lit for a few seconds longer than expected first thing in the morning.

When the chain was failing, I was lucky to find pieces of plastic guide in the sump before serious damage occurred. On stripping the motor down, it was obvious the lower chain had stretched way beyond service limits (I didn't measure it). This caused the lower tensioner to extend to a point it was sticking and caused the chain to eat into the lower guide.

I made the mistake of fitting a cheap aftermarket replacement chain kit, (FAI).

Within 6 to 7 months, I was noticing a tappety noise on startup, this turned out to be the upper chain tensioner failing. This caused one of the upper guides to break off its mounting points. Again I was luck and there was no collateral damage.

As a result of this I bought and fitted a full Duplex conversion kit from Billcar who supplied genuine parts with an adapted vacuum pump. I spoke to Dave at Billcar who told me that aftermarket upper tensioners were causing breakdowns. The tensioners are basically small spring loaded plungers with an engine oil feed for damping. Oil should not leak back through the tensioner supply hole, if it does it allows slapping of the upper chain resulting in the tappety noise and damage I had experienced. Dave further explained that he had never heard of a lower tensioner failing in this way.

So the point of this post is to air my opinion on the cause of this built-in weakness in the D40 YD25 engine. I fully blame the weakness on Nissan for fitting a simplex lower timing chain in this engine. The D22 with the YD25 engine in the UK (2001-2005) had the duplex setup which has caused no issues, but putting a weaker chain in a more powerful engine is madness.

The drainback caused by some aftermarket oil filters obviously has an effect on the engine but not the lower chain or tensioner. I think this is a red herring.


This subject has been covered many times on Nissan-Navara.Net, where I have attempted to collate relevant information in an effort to show a pattern of vehicles affected. To be honest the results are not conclusive and do not show any particular year of D40 being better or worse than any other.

http://www.nissan-navara.net/viewtop...ing+chain+poll

It's good to share information, especially if it helps us put the screws on Nissan.
Reply With Quote

  #25  
Old 19-02-2015, 09:19 PM
Old.Tony's Avatar
Old.Tony Old.Tony is offline
Administrator
 
Join Date: Oct 2009
Location: Mid Coast Region, NSW, Australia
Posts: 15,208
My Mood:
Garage
Default

That poll shows an spread through the earlier years but that could also be explained by age or distance "wear and tear" - doesn't make it right, the timing chains aren't supposed to have a "best before" date!

It still seems to be the case that it's not the chain failing, it's the tensioner.
__________________

Check out the FAQs by clicking here!



"Money can't buy happiness, but it does make misery a lot easier to deal with."
Reply With Quote

  #26  
Old 19-02-2015, 10:19 PM
kernels kernels is offline
Member
 
Join Date: Sep 2013
Location: Auckland
Posts: 298
Default

The irony here is bloody painful. Nissan (Renault) fits a chain instead of a belt because of the public perception that it is lower maintenance and lasts longer. If only they had fitted a belt, it would be trivial to change the belt every 100ks and there wouldn't really be much else to complain about on the YD25
__________________
2013 Navara D40 ST, Thai built, kiwi version
Reply With Quote

  #27  
Old 19-02-2015, 10:24 PM
steel d40 steel d40 is offline
Member
 
Join Date: Mar 2009
Location: Perth WA
Posts: 224
Garage
Default

Mine also Spanish 2007 126kw. Any 140kw upgrade failures?
Reply With Quote

  #28  
Old 19-02-2015, 10:49 PM
abouttogobush's Avatar
abouttogobush abouttogobush is offline
Senior Member
 
Join Date: Nov 2014
Location: Buggtussle
Posts: 457
My Mood:
Default

You would think the YD25 would have the same tensioners regardless of it being Thai or Spain build. Surely the same donk goes in the two. Just my thoughts and being Nissan I am probably wrong.
Cheers.
Reply With Quote

  #29  
Old 19-02-2015, 11:17 PM
camo.b's Avatar
camo.b camo.b is offline
Advanced Member
 
Join Date: Feb 2011
Location: adelaide hills
Posts: 2,288
My Mood:
Garage
Default

There are quite a few diffrences with the thai and spain..manifolds... sensors..turbos and similar bolt ons.
Reply With Quote

  #30  
Old 19-02-2015, 11:26 PM
4 naving 4 naving is offline
Senior Member
 
Join Date: Jul 2010
Location: gold coast
Posts: 649
Default

I think the tensioners are the same but the chains come from different manufacturers for different years /models.
It is interesting that the duplex upgrade from yd25 uses genuine Nissan tensioners as they state they are the best....
I really don't think the oil filter is the cause. Aftermarket ones just show the head of the problem earlier being, single chain stretching/wearing and wearing guides/tensioners.
Otherwise the motor is fantastic power to weight.
All I can say is it will be my last Nissan.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT +1. The time now is 03:33 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
| Home | Register | FAQ | Members List | Calendar | Today's Posts | Search | New Posts |