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jtwmack

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Discussion starter · #1 ·
i want to change the big end bearings on my 04 d22 2.5td .can any one recomened where i can get them ( other than nissans ) is it worth up ratting the bolts ? ( i would replace them anyway ) . i have been told there is a better oil pump ? .
any advice or contacts would be helpful .
sorry to bore every one with this engine topic !
 
bearings-- acl 4b2751 (std) from andy at engine products bradford (01535 272271) or from acl usa (616 956 1300 ext 107 (micheal flynn)) about ÂŁ40 inc delivery.

bolts-- arp 202-6005 from pri racing (0161 718 6721) ÂŁ43+vat

if i remember right you have to file the locating lug on the bearings down a little bit - just a few passes with a file apparently

also have a read of THIS thread - its proper long but has everything you need about the engine mods
 
Buddy Im glad you asked!

Im just as keen to hear how to save myself a few bob by not having a blown engine.
Are these the best way to go about preventing the problems with the 2.5l unit?
Or are there a few other things that need to be changed as well?

Regards
Nico
 
To all those wondering 'whether they should upgrade their engines or not'?
Just do it fella's.
If you don't, and the engine does self destruct, Navara's are now valued so that effectively, they almost become scrap, even a short block costs around the price the car is worth, a new engine almost twice as much!
There are very many reports on this site from owners who did change their bearings etc completely 'on spec', content that they did not have a problem and were just being extra cautious.
Many of these 'extra cautious' owners havel testified in reports to this site, just how lucky they were to have caught the damaged bearings etc when they did, saving themselves mant thousands of ÂŁÂŁÂŁÂŁ's.
A hard weekends DIY and around ÂŁ80-90 will transform your cars into something you can have confidence in again.
I did my replacement engine some 14K miles ago, it runs like a swiss watch and I would drive it anywhere (I even use the radio on high volume!).
Regards,
Chris
 
totally agree with chris.i cant remember the mileage when mine was done it was quite low but no 3 top half of the bearing was shot others starting to mark up but only the top halves.i dont even think about it now just get in and drive (not at the mo bent it).regular oil & filter.it was the best cant remember but less than 400 quid spent.

neil
 
Discussion starter · #7 ·
thank you very much for every one's help its much appreciated . poor sate of affairs that you have to do this engine work at all . but it still beats fixing a land rover! ( iv had six and all a pain in the poket )
 
Without wishing to offend anyone, this situation has been going on for at least more than the the 2 years that I have a member of this forum, and a Navara owner.
Some like myself bought their Navaras very cheaply with a rod already out, others have owned them from new.
Nobody in their right mind would think Nissan set out to instigate this problem, true they should have been a lot more pro-active (I hate modern day business jargon) in identifying this defect, and even more so in developing an answer to it.
But, they aren't the first and certainly won't be the last motor manufacturer who inadvertantly build in extremely significant defects in thier cars, and then sit down and ignore the results, e.g. Ford USA with the exploding fuel tanks that burnt many people to death.
A result of this (and other sites) is that we have got Nissan to up the warrenty period to 5 years and/or 150,000 kms for the YD25 engine'd cars, a valuable move for owners with perfect service history's.
The reason we have to spend our time and money resolving this issue is simple.
Being reasonable to Nissan (a first time for me!); there has to be a cut off period, warrenties cannot last forever, not all our cars have perfect service history's (hence are not covered anyway, this would be the same whatever manufacturer was involved!).
Nissan can reasonably be expected to become absolved from their responsibilities at some time, given the age of our cars this time has reasonably past or is about to expire.
Also as I have written shortly before, a Navara that has or is about to throw a rod and hole it's block, due to age and associated value can be thought of as scrap, or broken for parts, unless the lucky (or otherwise) owner finds that elusive 2nd hand undamaged engine that many of us have spent hours and hours looking for!
Given all of the above the main reason we spend our time and money repairing (what should not have happened in the first place) is that,once uprated these are fine very capable vehicles.
Those of us that have gone to these lengths are glad that we did expend the effort,and that 80-90 quid is well worth the cost to achive this, providing us with a working/leisure vehicle that as far as we know suffers no more generic defects, and that can be expected to give very many more years good service.
Regards to all,
Chris

PS
NO Nissan haven't given me a job, only trying to be fair (ouch! that hurt!)
 
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Hi all and special mention for
Chris Vince for his well done investigating job.
excuse please my bad english.
I tried to manage order for two sets of acl 4b2751 (standard) ACLduraglide and i sent a mail to
info@engine-products.co.uk but no reply now yet.

I havn't adress mail for michael Flynn usa

only this one
tera_brown@acl.com.au
Or
Jason Fox
Web:www.chrismillsperformance.com
jason@chrismillsperformance.com

which way will do the best for nonenglish customer?
i think swift transfer payement must be ok i think (no credit card or paypal allowed?)

best regards

i re-read carrefully all your usefull topic and i am "minded" ready

Boris
 
bearings-- acl 4b2751 (std) from andy at engine products bradford (01535 272271) or from acl usa (616 956 1300 ext 107 (micheal flynn)) about ÂŁ40 inc delivery.

bolts-- arp 202-6005 from pri racing (0161 718 6721) ÂŁ43+vat

if i remember right you have to file the locating lug on the bearings down a little bit - just a few passes with a file apparently

also have a read of THIS thread - its proper long but has everything you need about the engine mods
Hi just wondering if anybody knows if this number is still up to date and weather the price has increased much.
bolts-- arp 202-6005 from pri racing (0161 718 6721) ÂŁ43+vat
 
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