Testing 1HZ Injectors (485,000km old)

It's so important to know that your injectors are performing correctly! Today I will be testing my 1HZ injectors, and comparing old injectors to reconditioned injectors.
*EDIT: The 1hz is uses auxiliary combustion, not direct injection. The only difference here is that the fuel is injected into a chamber just above the piston rather than directly onto the head of the piston. This allows the air to mix with the fuel better. Obviously it’s still important to have clean injectors because fuel dribbles will make for an inefficient burn and will still create hot spots on the piston head. My apologies for using the wrong terminology in the video, I am aware I was wrong :)
The injector tester I used: vevor.com.au/products/diesel-...
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DISCLAIMER:
This video is for entertainment purposes only. I am not a professional and have no specialty training in the fields shown throughout this video. I take no responsibility from any repercussions from potentially false or misleading information provided in this video. To complete any of the jobs, procedures or vehicle upgrades shown in this video, please see your local mechanic.

[@fatchunk3678]

I’ve been in the 4x4 industry for years, I’ve been looking around a videos on 80s and 100s because I’m in the market. I’ve got to see; your videos are the best. No BS. Actual practical know how for the average punter to watch and learn. Well done mate.

[@WillsLandcruiser]

This means so much mate, thank you. I don’t always get it right and I’m no professional (yet), but I love that I can show people how I give it a go and it’s great to hear from other people doing similar things and maybe even grabbing ideas from my channel! :)

[@gavinskylar751]

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[@dillonryan4161]

@Gavin Skylar instablaster =)

[@gavinskylar751]

@Dillon Ryan thanks so much for your reply. I found the site thru google and Im in the hacking process atm. Seems to take quite some time so I will get back to you later with my results.

[@gavinskylar751]

@Dillon Ryan It worked and I actually got access to my account again. I am so happy! Thanks so much, you saved my ass!

[@tuomashaanpaa8209]

Excellent video! Your Cruiser runs beautiful! Just had mine other Cruiser injectors replaced(Prado 120 3.0 d4d). About 450.000 km and they were kaput/done. Noticed smoother idle and better fuel economy,that is it. Keep up doing these videos!😃

[@FULLBOAR]

Great vid mate, just picked up a 105 that went under in the Lismore floods. Got it running but sus on the injectors. I’ll have to look into the injector tester. Cheers.

[@xavierhart695]

Nice video mate👍👍

[@jackcoughran3115]

Good job mate

[@SocialMeh]

Hey Nick would you know the pop/crack pressure? Also the torque specs when reassembling and when being put back into the engine. Ty

[@zonavarbondagoo4074]

Nice one. My 80 is pushing 700 k km's and doesn't run awesomely. Reco pump and injectors were fitted at just over 500 k km's about 10 yrs ago so looking to fit a full new set of injectors. I've never had the head off and don't know the state of the internals.It's the original 1hz motor fitted ex-factory in 1992!

[@jakedoyle8934]

Injector tips last 60k . They have a part number on the side. Ebay. Denso replacement. If you can pull apart and clean you can replace the tips easy. Also the 1hz manual is handy for all your specifications. AwSome vid mate

[@B.D1111]

Good vid mate. Did my pump and injectors 5000k ago. Wow its like driving a brand new 105 again. Might be time at those kms to do your pump as well. Looking forward to the next vid. Cheers

[@WillsLandcruiser]

That’s so good mate! And I couldn’t agree more, just trying to find the money for a pump 😂 Not quite there yet but it is absolutely on the list

[@Mr105.]

@@WillsLandcruiser Do your research on where to send your pump buddy. (I won't bag out the mob that built mine). One bloke I do trust is JP Performance in Wodonga. The only reason I didn't use him this time is because I had my engine rebuilt and they organised the pump rebuild in the job

[@WillsLandcruiser]

@@Mr105. cheers for that! Saving up some coin at the moment and in the mean time I would love suggestions on where to send it! I’ll look those guys up, thanks heaps!

[@Mr105.]

@@WillsLandcruiser He's a one man show. He built the pump on my old TD42T 👌

[@WillsLandcruiser]

@@Mr105. thanks heaps for that suggestion! I’ll be looking into it!

[@lukepaki7231]

Nice job✌🏼

[@fergusnorris6694]

hi mate where did you get your injectors from

[@captbob1494]

Good job

[@MrSkywalker1964]

Good vid. You don’t have to take the fuel lines off though. Just move them out of the way once off the injectors.

[@NitrosDen]

And that my friend is how people bend them and damage them. He did the correct thing there.

[@neallyons9515]

@@NitrosDen if you take the clamps off that hold them together it's no problem to just move them slightly aside. Less troubles bleeding the system afterward as well.

[@oliverpedlar3315]

Good vid as always, Do you have any tips to keep the old girl humming? I am thinking of getting mine ready to go for some touring but it is very bog standard. Also paint going to crap and driveline needs heaps of work. Also what do you think about respraying with Rapotor coating? I've been thinking of doing that to mine to make it look half decent, also fix up bullbar then setup some 12 volt. Keep up the good work, also great video edits and camera/audio quality.

[@WillsLandcruiser]

Thanks heaps for the kind words! Honestly my biggest tip would be to put in the time, it’s worth it. Sometimes you’ve just gotta spend the money, but the more you can restore and upgrade by yourself, the cheaper it’s going to be, and the more you’ll learn about your cruiser. I think raptor coats look so good when they’re done right! Love them when they’re generously thinned, and silver or gunmetal grey have been my favourites so far. Sounds like you’ve got a fair bit of work to do, but nothing is impossible!

[@oliverpedlar3315]

For the rapotor it'll be done by a professional but the rest I think I should be able to do. Just need to find a new Bullbar as the current one is super rusted underneath

[@WillsLandcruiser]

Definifly good to get the paint job done professionally, but other things would be great to do yourself and you gain a really awesome understanding and respect for it when you start doing big jobs like that!

[@deant6627]

Hi Will, On my 1HD-FTE, two of my injectors are operating much louder than the others, would that suggest I should have the injectors looked at?

[@WillsLandcruiser]

I’d start by making sure all the injector clamps are tight and the rubber bushes are good. If so it never hurts to take them out and test them. FTE are still mechanical injectors, just with an electronically assisted pump

[@simonford9139]

Doing mine now and noticed the small holes drilled in the washers and that there's also a hole in the injector where the washers sits. Please tell they don't have to line up. Not sure it's possible.

[@WillsLandcruiser]

Nah don’t worry about that! That’d just be cruel for the mechanics 😂 The only thing you’ve gotta worry about is getting the washers in the right order

[@alansiddall8227]

Can u tell if your Injectors need replacing just by the way your 1hz sounds?

[@WillsLandcruiser]

Nah I wouldn’t imagine so- not unless it was maybe an extreme case. Injectors are just the kinda thing you wanna change every 200/300 thousand depending on the service manual’s recommendations. Symptoms of bad injectors are normally hotter EGTs and sometimes worse fuel economy if they’re opening at a lower pressure than they should be

[@Okino-gt6dr]

Did you Tension the Injectors a certrain torque setting or just tight?

[@WillsLandcruiser]

I believe spec is about 64nm/47ftlb so nice and tight with a 1/2 inch socket drive 👍

[@normanmackinlay412]

Great video . Thank you. I have a 93 1HZ 80 series that has done 560K. Would you fit an aftermarket turbo to this beast of a truck.

[@WillsLandcruiser]

If you want a bit more get up and go, it’s a great idea. Do some tests first if you’re unsure about the health of the engine. A compression test is a good one. Check out some of my other videos, especially the 30,000km review. I have some tips on getting good longevity out of a turbo conversion

[@reinhardtrippmacher8776]

If you are below 35bar down to max 31bar compression you can risk it. IMHO natural aspired diesel with a turbo attached suck. Its never the performance of a 1HDT. Keep the 1HZ as it is or replace head, pistons and for sure the injectors and everything whats related to it. But your engine will be more prone to failure like head gaskets or piston crack if you keep it as a 1HZ with Turbo attached.

[@joshuafraser6027]

Where did you exchange your injectors?

[@WillsLandcruiser]

MTQ in Adelaide 👌

[@AdamSmith-ku9pz]

Did you notice any difference in power after the injector replacement?

[@WillsLandcruiser]

Honestly not really. The EGTs were a little bit cooler in general (maybe 30° or so) but that’s about it

[@samuelamonsan3340]

Good

[@ForPropertyInvestors]

The old injectors get changed over do they, from where the new ones get bought?

[@WillsLandcruiser]

MTQ in Adelaide 👍

[@ForPropertyInvestors]

@@WillsLandcruiser Thanks. I didn't know they get changed over. Are aftermarket injectors on eBay any good some are like $147?

[@WillsLandcruiser]

@@ForPropertyInvestors I would personally recommend genuine parts where possible, especially with something as important as injectors. The reviews would be the only real way to tell if those injectors were any good

[@kennethpino2595]

Is it necesaary to bleed the injectors after replacing them?

[@WillsLandcruiser]

Yes generally you’ll need to crack the lines at the injectors and let the air out before it’ll run

[@carverdouglas3718]

Would you mind sharing the contact of the company you’ve exchanged your injectors with ?

[@WillsLandcruiser]

Hey mate yeah they were exchanged through MTQ in Adelaide.

[@craigmooney2630]

Did you notice a difference in fuel economy Will

[@Beng177]

I wish I had an injector tester - would love to know what my FTE injectors look like after 460,000 kms

[@WillsLandcruiser]

They’re about $100 on eBay

[@kotasonamtenzin]

How much did 6 injectors set you back ?

[@WillsLandcruiser]

Work on A$80-$90 an injector changeover price. Ended up being close to $600 all up

[@kotasonamtenzin]

@@WillsLandcruiser was it genuine Toyota injectors ?

[@WillsLandcruiser]

@@kotasonamtenzin through MTQ so I imagine they were refurbished genuine injectors

[@kotasonamtenzin]

@@WillsLandcruiser thanks mate. Got any videos of the injector pump?

[@DTGTDetectingTheGoldenTriangle]

1hz is indirect injection so injectors spray into a swirle pot 1hdt are direct injection so straight onto the piston witch is a completely different piston shape to 1hz flat top pistons 👍

[@WillsLandcruiser]

Thanks mate corrected this in the description after releasing the video. Didn’t even pick up on what I said until after I released it. I am aware it’s auxiliary combustion

[@DTGTDetectingTheGoldenTriangle]

@@WillsLandcruiser haha all good and that's why I built a 1hdt for my 75 series the hz did not enjoy 12mm pump and gt3067 at 35 psi 😂

[@WillsLandcruiser]

@@DTGTDetectingTheGoldenTriangle yeah nah the hz wouldn’t be a big fan of that aye 😂👌

[@joshuaobrien9779]

I do mine every 100,000. Cheap insurance. I got a whole set genuine Toyota ones for 360

[@neallyons9515]

where do you get whole set oem for 360?

[@jakeclonan6263]

Your meant to replace the injector line but that’s ok

[@WillsLandcruiser]

On the FTEs yes. But spoke to some diesel mechanics and they said it’s not necessary on the HZs

[@MrSkywalker1964]

No. The lines are fine......unless they’re cracked, blocked or worn.

[@nilz6432]

You could have bought new nozzles for a lot less than a set of injectors :-)

[@anbu999]

Try Fuel Doctor

[@tadeuszmichaelwlodarczyk3120]

Been using fuel doctor from day one when it first came out" it " cleared my injectors after a few tanks of fuel and never looked back.runs like the day l bought the 80.

[@Venom-nk8nd]

🇵🇬🇵🇬,