How to Build YD25 Engine D40, D22, R51

[@chop8u2]

probably the clearest and best rebuild video i have seen, perfectly explained and very well done

[@LesSporer]

Just got my Nissan 2010 D40 Thai engine done by the boys and picked it up last week, we got all the mods too, I can't say enough about the great service & support they provide. I would recommend them to anyone with a Nissan D40, thanks Daniel & Paul

[@negueba235689]

Who did the job?

[@LesSporer]

@@negueba235689 I removed and reinstalled it as well did the mods etc. (I am an auto sparky which helped) and Daniel & Paul did the engine side up to the video above. I have never done engine rebuild etc. but found this to be very easy and the guy's really support there service.

[@LesSporer]

Also, the car is going great had no issues at all,

[@jeremywilliams5272]

Thank you for your time and video, I just replaced a fuel pump, that some one almost got out and left in pieces and parts and I rewatched your video 100 times just to make sure I got it 💯 right , also i needed a computer to plug in and let ecu know it was a.new fuel pump .

[@sdjnwhyNZ]

Thinking of getting a Nissan Caravan with a yd25 and started doing homework with this video. Thanks.

[@davdgabor7237]

Díky za video moc pomohlo👍 zdravím z České republiky

[@AndyH-13]

Great video, easy to follow, easy to listen to.

[@richieplaysgame5]

Just got my 2007 ST-X D40, totally saving this video for future reference. Super informative

[@notoioudmanboy]

Cheers mate from Western Australia.

[@RajSingh-um8hv]

A very professional presentation - well done.

[@MiltonPhiri-d1o]

Awesome video, easy to follow through and understand 👍

[@RajSingh-um8hv]

A perfectly explained video. Well done.

[@braxtonkalolo3943]

Can you please do a video on how to remove the engine?

[@christoph4992]

I have a xtrail t30 d22 which is dying with a cold engine. Ibsuspect the timing chain is worn after 250tkm. Is changing the timing chain similiar to your assembly in the video?

[@universalstudio7411]

Greats job👍👍

[@truongminh3731]

thank for your video

[@erikv86]

Just out of curiosity, what grease are you using for the head bolts?

[@lesilestivany7839]

Hope you will upgrade the timing chain to a stronger duplex timing chain set up.

[@jamesoheadrivnmedia]

If u watch the video that's exactly what it has on it

[@omaliveatlast4688]

I need to check the lower timing chain tensioner on my t30 , can i remove oil pump but leave sump in place ?

[@yd2532]

@@omaliveatlast4688 im not sure what model that is

[@rossphillott28]

What heads are you using? I’m thinking of one off eBay instead of wreckers

[@yd2532]

@@rossphillott28 it's an aftermarket head casting with the genuine internals put back into it. What broke on your head?

[@rossphillott28]

@@yd2532 cracked head

[@yd2532]

@@rossphillott28 where are you located?

[@rossphillott28]

@@yd2532 qld. I’m looking at buying one as a project, it’s just down the road and has all the gear on it but has cracked head. Just doing research. If the cams are damaged how much for oem cams? As you sed the aftermarket ones where out

[@yd2532]

@@rossphillott28 of the old head is genuine we do reco exchange heads for $1600. Or we can supply a new bare head casting for $850 and you can swap the internals.

[@juansebastianpinerocasco9616]

Hey there mate, awesome video. Thanks for the info. Im corius though about why you torque to head bolts to 44 N/m when all the manuals I have seen say 39 N/m.

[@patrickduuffas7516]

Where can i get a short block to buy any idea?

[@yd2532]

@@patrickduuffas7516 where are you located?

[@patrickduuffas7516]

@ in Jamaica

[@zomgitskyo]

Can you guys fit the double row timing chain?

[@yd2532]

Yes

[@kenm8797]

Well presented and skill.👌 I ve 2007 D40 VSK engine I rebuilt the engine from scratch as per your guide and all seems well and good except that at times when I restart the engine it sometimes drives with super quite smooth idling and at times little bit rougher but not easily noticeable by someone who haven't driven it for long to understand the difference engine sounds. Secondly ,it also sound smoother than normal when diesel is almost finished when below quarter tank gauge level.What will be the cause of these? Lastly, when rebuilding the engine I rebored the block and replaced the cylinders with the max size "40 thousand size" I sometimes feel like the standard turbo is now smaller for the power it now has as the booster solenoid keeps failing to boost although the engine still remain powerful enough to climb hills even without turbo boosting. What other turbo type and size can I use to upgrade it?

[@yd2532]

Rough idle could be suction control valve

[@kenm8797]

@@yd2532 🙏 You mean it needs replacement? What about turbo upgrades?

[@yd2532]

@@kenm8797 ye scv might need replacing

[@yd2532]

@@kenm8797 videos coming soon for D40 turbo upgrades

[@yd2532]

@@kenm8797 videos talking about turbo upgrades for d40s coming soon

[@AmazeMJ]

Awesome video! How does the failsafe for the tensioner work? Does that come standard with the kits?

[@yd2532]

Takes up the air gap so it can't go back in all the way and have enough slack to jump teeth. We make them and include it in all our kits

[@sansem9309]

Great video dude. When u said, use silicone under the timing chain cover seal. What type of silicone should be used? I'm about to replace the seal.

[@yd2532]

3 bond super sealer grey

[@sansem9309]

​@YD25 Thanks mate...

[@ZacWatkinson-cs8xx]

Great info. Do you guys sell a complete diy rebuild kit

[@yd2532]

We sell bare long engines that way all the important machining and measurements are done properly but can sell parts as well. yd25.com.au/index.php/services-2

[@julianmillgate5990]

I have just done a new head on my YD25 from a 2006 D40 and when I start it, it idles for a few seconds and stalls out. It runs pefectly fine if you just touch the throttle. There are no codes when I plug in the computer. Any Idea what it could be?

[@yd2532]

See if it runs if you disconnect the cam angle sensor

[@julianmillgate5990]

It’s running with the cam angle sensor out, does that mean the timing is out?

[@yd2532]

@@julianmillgate5990 if it runs and doesn't want to stall like usual means either chains are out or cam sprocket not lined up on dowl or tone wheel not lined up

[@jekjo148]

Сколько стоит комплект грм?

[@henrymacdonald8706]

Where could I get a work shop manual for this motor

[@yd2532]

Navlife website

[@henrymacdonald8706]

What’s the problem mate, all I want is a work shop manual.can you supply me with one.

[@yd2532]

@@henrymacdonald8706 there is a free pdf on the navlife website navlife.com.au/d40-series-2004-2015/

[@dean6267]

Great video 🤟 at what mileage would you consider replacing the timing chain? What brand of timing chair would you recommend? Cheers love ya work👍🤟🤟

[@yd2532]

Average chain life is 150 000km. We make double and single row kits www.yd25.com.au/index.php/services/yd25-duplex-timing-chain-conversion-kit

[@dean6267]

@@yd2532 thanks for the reply, I will keep that in mind. Mines only 65,000kms ATM

[@marccadz3630]

​@@yd2532160k now but works fine should i replace it now?

[@shalnks]

@@marccadz3630 I would, my bottom chain let go at 188K, and a couple of K compared to 6-8K and the time is a bif difference

[@jekjo148]

Привет,а зачем ты с верхнего натяжителя вытащил конус и перевернул его?

[@richardherring76]

Maybe you can help me with a d40 that blows grey and blue smoke after it warms up. Strong diesel smell. Motor runs fine. Good power. Has new injectors and engine was rebuilt. It started happening about 2 weeks after the rebuild.

[@yd2532]

Were they new or reco injectors? Could be low compression of low rail pressure. Try an ecu rest

[@richardherring76]

@yd2532 reco. But I put the old injectors back in and it does the same thing.

[@yd2532]

@@richardherring76 could be low rail pressure do an ecu reset or change the scv. Or could be low compression make sure you put the engine under load to help the rings bed in

[@richardherring76]

Cheers mate really appreciate you help

[@marvinhenry1027]

Lovely video

[@msilamsila789]

شكرا لك على التوضيح

[@foodventure7936]

Wow great video. Can i ask for workshop manual. Your help will be appreciated

[@yd2532]

navlife.com.au/d40-series-service-manuals/

[@mattscott8997]

Where are you guys located?

[@yd2532]

Ipswich qld

[@muchierichman4128]

A quick question....... Which year was the timing chain issue addressed on YD25 D40? Reason why I am asking is, I wish to buy a used Navara D40 but am not sure how to check if the car has a double timing chain without opening the engine.

[@yd2532]

@@muchierichman4128 all the yd25s except the early non common rail engines have single row chains

[@mikestee1371]

This video is great just what i needed. Can you 1 for zd30 engine please🙏

[@smautomotor9614]

Thanks great video, congratulations, can you share the workshop manual ? See u have a nice day, thanks

[@yd2532]

navlife.com.au/d40-series-service-manuals

[@smautomotor9614]

​@@yd2532OMG !!! You are the best!!! This is gold for me !!! Thank you very much ... I am currently working on a truck with this engine (YD25DDTi) that's why I searched for videos on the internet and found yours... thank you very much you are a great person for sharing

[@smautomotor9614]

@@yd2532 than you very much !!! you are amazing, I am currently working with a Nissan truck with this engine (YD25DDTi) and this is a great help to me, I am very grateful to you for sharing

[@adventurecampexplore5496]

Absolute legend, fantastic video mate. I just bought a 2009 2.5l Pathfinder and I have an annoying ticking sound on acceleration but only up to 2000 rpm, then I can’t hear it. Worse when the engine is cold. Any ideas mate.

[@yd2532]

How many KMs

[@adventurecampexplore5496]

@@yd2532 188k Supposedly the timing chain has been changed to a double row chain, but the injectors have never been done… well the last owner never did them and he had it for the previous 3 years.

[@yd2532]

@@adventurecampexplore5496 injectors usually go around 300k unless they have been over heated or had dirty fuel. You could measure the chains

[@adventurecampexplore5496]

@@yd2532 So you think it could be a stretched timing chain.

[@yd2532]

@@adventurecampexplore5496 potentially depends on the brand of chains that were fitted and if it was fitted correctly

[@dickydk01]

good sharing sir. It's same Nissan navara d23/navara np300.

[@eddkrub]

Wow ..thank you.

[@bashka5743]

Can you rebuild my engine on my Pathfinder?

[@yd2532]

This is our engine page yd25.com.au/index.php/services-2

[@อู่จ่าการช่างสุรินทร์]

Thanks You

[@atvcampingadventures1728]

Great stuff mate. I have a d40 with a very annoying ticking sound in the top of the cylinder head I have had the shims checked which are all within spec and new injectors which it needed I have no gasket leaks it is doing my bloody head in any ideas 🤯🤯🤯 i have been told it is just a noisy engine which doesn’t make sense to me 🤔👍👍

[@yd2532]

Worn timing chains can make a ticking noise. Sometimes the cam chain guide can snap as well and rattle

[@atvcampingadventures1728]

@@yd2532 sorry mate I forgot to mention it does have new timing chains as well ,hence that is why it is doing my heading . Thank you so much for your reply 👍👍👍

[@yd2532]

@@atvcampingadventures1728 is it the original head or aftermarket?

[@atvcampingadventures1728]

@@yd2532 original

[@kenm8797]

I had similar issue and I noticed the fuel pipes were sucking air into the system and that the water separator filter drain plug wasn't fastened tight enough and after tight fastening them and doing an on engine suction control valve and injector system cleaning, it become so quite and sounded like as if it was a petrol/gasoline engine

[@clementmakamo4557]

At what point is the engine on tdc.you are just focusing on marks

[@yd2532]

When crank woodruff key is at 12 and the cams at 10 and 2.

[@devarmont87]

This is fascinating as fk... I would only dream of rebuilding my engine.. might have to one day since I've remapped it 5 years ago go a rich fuel/air ratio..just waiting for it to blow Q: Why copper hammer? And what kind of silicone? Is RTV thread sealant fine?

[@yd2532]

copper hammer is soft so doesnt damage parts, we use three bond super sealer grey

[@wahabirak7748]

شكراااااا

[@jekjo148]

И для чего ты с верхнего натяжителя перевернул конус?

[@msilamsila789]

ارجوا منك ان تنزل الترجمة الى العربية

[@nOWaYOUT221]

What engine oil do you use sir? Do you have whatsapp i have a yd25 too

[@yd2532]

5w30 or 5w40 full synthetic

[@nOWaYOUT221]

@@yd2532 what brand sir

[@yd2532]

@@nOWaYOUT221 any decent brand as long as you service it every 10 000km or sooner if you do towing

[@nOWaYOUT221]

@@yd2532 is it a reliable engine sir?

[@yd2532]

@@nOWaYOUT221 yes www.yd25.com.au/index.php/yd25-maintenance