Diesel Compression Test or Leak Down Test? Toyota Land Cruiser 1HZ 1HD-T 1HDFT 1HDFTE

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Lock your Hubs 4WDing

Lock your Hubs 4WDing

Күн бұрын

In this episode of Lock your Hubs 4WDing we check out how to perform a diesel compression test and does it compare with a leak down test on a Toyota 1HD-T Turbo Diesel engine in a Land Cruiser 80
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#LockYouHubs4WDing #CompressionTest #LeakDownTest

Пікірлер: 103
@marktyler9464
@marktyler9464 3 жыл бұрын
clearest explanation i've seen . want to see the leakdown test too.
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Thanks, looks like that'll be in an upcoming episode, so keep an eye out!
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Our leak down test is now live! kzfaq.info/get/bejne/m8Woa7GWvczafYE.html
@deriusnorris4463
@deriusnorris4463 Жыл бұрын
Agree awesome video. The leak down video was also great.
@Ghostrider-71
@Ghostrider-71 Жыл бұрын
Very informative video, thank you for posting.
@LockyourHubs4WDing
@LockyourHubs4WDing Жыл бұрын
Glad it was helpful!
@Mr105.
@Mr105. 3 жыл бұрын
Man what is your background? You seem to be able to explain things really well, great work👍👍👍
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
I'm a professional 4wding epistemophilic, it's like a disease, I've been afflicted for years! :)
@PadmaDorjee
@PadmaDorjee 2 жыл бұрын
This was so friggin informative man. I completely understood everything ypu said and I find it difficult to tie my shoelaces 🤣. Instantly subscribed and will watch the rest. 🏆
@LockyourHubs4WDing
@LockyourHubs4WDing 2 жыл бұрын
Thanks mate, don't worry, I wear elastic sideded boots for a reason too mate!
@Oddsy_Au
@Oddsy_Au 3 жыл бұрын
Top info mate 👍 well presented
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Cheers mate!
@gtb4
@gtb4 10 ай бұрын
Well done! Thank you for sharing
@LockyourHubs4WDing
@LockyourHubs4WDing 10 ай бұрын
Thanks for watching!
@bertiew1234
@bertiew1234 9 ай бұрын
Yes - love to see a leak down test.
@LockyourHubs4WDing
@LockyourHubs4WDing 9 ай бұрын
Check out the videos on the channel, there's a video just on performing a leak down test.
@muzzaball
@muzzaball 3 жыл бұрын
Well I am happy with finding out what is wrong with the donk, so whatever you publish, leading to that end result, I will watch! Cheers and good luck.
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Thanks mate, the head is still attached to the block at the moment, but it'll come off soon enough.
@muzzaball
@muzzaball 3 жыл бұрын
@@LockyourHubs4WDing I am not much of a diesel mechanic, they worry me. What do you THINK it may be - stuck valve, or all sooted up?
@garymcgaw7212
@garymcgaw7212 Жыл бұрын
Thanks, great video
@LockyourHubs4WDing
@LockyourHubs4WDing Жыл бұрын
Cheers!
@BoranaKennedy-bi6rl
@BoranaKennedy-bi6rl 10 ай бұрын
Tanks for a information.
@LockyourHubs4WDing
@LockyourHubs4WDing 10 ай бұрын
You bet!
@chrisgentle475
@chrisgentle475 3 жыл бұрын
Definitely a great vid mate, though you might confuse some people about when and what causes combustion in a diesel engine, great explanation other then stating that air "and fuel" enter the combustion chamber via the Inlet port and valve, you also said that eventually the compression causes combustion, while almost true you should mention that the point of combustion is actually controlled through injection timing and that only air is introduced through the inlet port and valves in a diesel, just seems important to mention is all, not having a go by any means, cheers
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
You're right, ideally a diesel runs a dry inlet, thanks for the tips.
@JackLockyer-bt3sz
@JackLockyer-bt3sz 9 ай бұрын
Top lecture, keep up
@LockyourHubs4WDing
@LockyourHubs4WDing 9 ай бұрын
Thank you, I will
@JS-ri2rx
@JS-ri2rx 10 ай бұрын
Really informative video. My mates car is burning oil from cyclinder 1. I suspect vlve seal. Other mechanics have said low compression. This helps alot.
@LockyourHubs4WDing
@LockyourHubs4WDing 10 ай бұрын
While a compression test will tell you the general health of a cylinder's seal, if it's not great, it won't be able to tell you where the issue possibly is, that's the job of a leak down tester.
@renependergrast7059
@renependergrast7059 3 жыл бұрын
Yes please, a video on how to perform a leak down test would be great.
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Keep an eye out for the vid, it's coming!
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Our leak down test is now live! kzfaq.info/get/bejne/m8Woa7GWvczafYE.html
@BenMitro
@BenMitro 3 жыл бұрын
That was sick! (Is that the term that is used these days or I am of touch - again?). Hmm, sounds like a series on tracking down compression related issues is warranted. Tackle the basics - where can cylinder compression leaks occur and how to test for each possibility and then, perhaps, an indication of which are exceedingly rare. I'm running an 4JX1, so not *all* your viewers are interested specifically in Toyotas :), so it would be general diesel info.
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Hey, I've got an Isuzu, Mazda Suzuki and a Toyota in the driveway! I just like cars/bikes/planes, anything with an engine! There is more diesel related episodes in the pipeline!
@ondrejmarko01
@ondrejmarko01 3 жыл бұрын
Can you do video of symptoms? So we can look and compare if something similar happen to us. Thank you ;)
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Sounds like a great idea, thanks for the suggestion.
@johnwigg3683
@johnwigg3683 3 жыл бұрын
Great explanation of “4 stroke”. Now i can pretend to know what I’m talking about when my son asks what the term means
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Haha, just remember suck, squeeze, bang, blow!
@texminchin4062
@texminchin4062 3 жыл бұрын
Yes please do the leakdown video
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
It's on the list!
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Our leak down test is now live! kzfaq.info/get/bejne/m8Woa7GWvczafYE.html
@CleddyVele
@CleddyVele 11 ай бұрын
Can u come back with the leak down test pls ?
@heftymerv
@heftymerv 3 жыл бұрын
Great video mate, what lead you to check the compression, any smoke, rough idle or oil use? I have a similar issue, well think I do/did, two mechanics gave me different results. One was 180 and the other 520 was my happy 400k birthday surprise which I also had the valves check at the same time. No smoke, no oil usage, no rough idle and no blow by. Be keen to see the leakdown test.
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
The 80 was filling up the catch can a lot more than usual and when cold was a little rough at idle. While we haven't pulled the head off yet, I'm hoping it's only a head gasket and not a hole in the piston! Looks like we'll have to record the leakdown test as well.
@heftymerv
@heftymerv 3 жыл бұрын
@@LockyourHubs4WDing we can only hope, fingers crossed
@fifiandmax
@fifiandmax 3 жыл бұрын
Yes thanks please record a leakdown test
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
I've added it to the list!
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Our leak down test is now live! kzfaq.info/get/bejne/m8Woa7GWvczafYE.html
@betsabethguerra-ho5816
@betsabethguerra-ho5816 3 жыл бұрын
Hey mate, i didn’t disconnect the fuel 🤦🏻‍♂️.. but I got 520 psi all cylinders. Any advice would be appreciated cheers mate keep up the content and videos
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
That'll be fine, you probably don't want to push diesel up into your gauge, that's why you should disconnect the fuel system.
@bigpola3200
@bigpola3200 3 жыл бұрын
a great explanation but can you also include in the diagram where the glow plug is in relation to piston and cylinder? and what does it do?
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
The location of the glow plug is dependant in the head design and whether the diesel is a indirect injection (like a 1HZ) or direct injection (like the engine tested a 1HD-T). In an indirect injection engine the glow plug is usually in the precombustion chamber, in a direct injection engine it'll be in the combustion chamber itself. The purpose of the glow plug is to help start a cold engine.
@jackcouper7394
@jackcouper7394 Жыл бұрын
Hey mate, what compression tester kit is this? Finding it hard to find the right kit for a 1hdt glow plug size
@LockyourHubs4WDing
@LockyourHubs4WDing Жыл бұрын
That was a custom adaptor made by enzed.
@KiyaWarrior
@KiyaWarrior 3 жыл бұрын
Great vid, hope to swap a diesel into my FZJ80 some day. Got my 7.3l powerstroke in the mean time atleast.
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
The powerstroke is a great engine! I like the power of the petrol 80s, just not the fuel bill....
@KiyaWarrior
@KiyaWarrior 3 жыл бұрын
@@LockyourHubs4WDing Never stop making 80 series vids friend :)
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
They will pry the dual solid axles with coils all around from my cold dead hands! :)
@luiscarlosrojasmeneghel3675
@luiscarlosrojasmeneghel3675 Жыл бұрын
7.3 mucho peso y si está standard jala menos que un sensillo 15bt o un 1hdt originales Toyota con solo injectores de mayor caudal y turbo ball bearing de 54mm inducer compresor y 49mm exducer de turbina housing .48
@luiscarlosrojasmeneghel3675
@luiscarlosrojasmeneghel3675 Жыл бұрын
Con 20psi estás jalando de a igual al 7.3 pero mucho menos consumo y menos peso ya q el peso es malo en offroad
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Also check out our leakdown test video here! kzfaq.info/get/bejne/m8Woa7GWvczafYE.html
@Monkeycheeky7203
@Monkeycheeky7203 3 жыл бұрын
Great video. What symptoms was the engine showing that led you to run the test?
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
It was filling up the catch can with oil faster than usual and a little rough at cold idle. Thanks for the kind words.
@Ghostrider-71
@Ghostrider-71 Жыл бұрын
@@LockyourHubs4WDing would you advise adding a catch can for the 1-HDT engine?
@LockyourHubs4WDing
@LockyourHubs4WDing Жыл бұрын
@@Ghostrider-71 depends on the emissions setup in your neck of the woods. If it has EGR, then definitely yes, just make sure the catch can you choose can flow enough for the engine.
@tyrotrainer765
@tyrotrainer765 2 күн бұрын
Great video! I'm about to compression test a relatives single cylinder diesel gen (no glow plug) once a mail order tester arrives (same kit as the video). Will the wet test give an indication of dodgy valves? I suspect the starting problem is excessive side to side play on the exhaust rocker, or even a damaged valve (the valves were tight tight tight when I adjusted them the other day as part of the annual service). The engine started and ran fine until I put on the recommended clearances. Since, then, nada. I'm reluctant to go back to tight tight tight because it could be masking a bigger issue. I've got the same engine type and valve specs as the faulty gen and mine runs sweet as a nut. Cheers.
@LockyourHubs4WDing
@LockyourHubs4WDing 2 күн бұрын
A compression test is a bit like an "engine light* on your dash, it'll tell you there's something amiss, but not where your compress has gone. For that, you'll need a leak down test. kzfaq.info/get/bejne/m8Woa7GWvczafYE.htmlsi=E1h-ph-zAOJR6Otd
@tyrotrainer765
@tyrotrainer765 2 күн бұрын
@@LockyourHubs4WDing Thanks - I looked earlier, only skipped through the video - they sell testers here for under $20 US each for compression and leak tester kits. I may as well splash out because I'm in for the long haul with diesels, I love'em. Noisy buggers but I've got a phobia about storing petrol at home. I'm in the Philippines, out in the sticks, and last year during the rainy season our town was cut off from road supplies for almost a month due to land slides - the road literally washed off a mountain. You could not get gasoline for a good fortnight unless you got someone to go out on a motorbike to get you a can or two. But diesel wasn't a problem, I'd say I'm one of only 10% or so who drives a diesel here. And they seem to last forever if you look after them, eg regular oil changes. Thanks for the quick response.
@tyrotrainer765
@tyrotrainer765 Күн бұрын
@@LockyourHubs4WDing Many thanks for your input. I got it fixed, valve clearances. The rockers were not sitting properly on their shaft, they were laterally displaced from the central position by maybe 5mm - that was where they were resting when I first lifted the cover. I've got a bigger version of the same generator, brand new, so I lifted the cover on that and the rockers had virtually no side to side play and were sitting right in the middle, not towards the sides. So I re-adjusted the little 'un, ensuring the rockers were centralised as I checked the clearances. She started first time on the electric and the recoil. Phew! Thanks again.
@joegordon4387
@joegordon4387 Жыл бұрын
Cool
@LockyourHubs4WDing
@LockyourHubs4WDing Жыл бұрын
Thanks!
@mohamedgawad7564
@mohamedgawad7564 2 жыл бұрын
Hey Great video but how long should i expect 1hdt will last
@LockyourHubs4WDing
@LockyourHubs4WDing 2 жыл бұрын
I've seen them go 600,000km with decent maintenance.
@ronhall2075
@ronhall2075 Жыл бұрын
Aww gee why doesnt anyone do a compression test on a HDFTE.......it aint anywhere on KZfaq
@atomichurley
@atomichurley 3 жыл бұрын
keen for the leak test
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
It's on the cards!
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Our leak down test is now live! kzfaq.info/get/bejne/m8Woa7GWvczafYE.html
@atomichurley
@atomichurley 3 жыл бұрын
@@LockyourHubs4WDing Thanks buddy!
@deriusnorris4463
@deriusnorris4463 Жыл бұрын
Watched both videos. What was the end result when you opened up the engine? That would have made a great video.
@LockyourHubs4WDing
@LockyourHubs4WDing Жыл бұрын
It was a holed piston.
@deriusnorris4463
@deriusnorris4463 Жыл бұрын
@@LockyourHubs4WDing that sucks. I have a FTE which has blow by a fair amount with white puffs... Stressing out for when I take it in... Is what it is... Thanks again.
@deriusnorris4463
@deriusnorris4463 Жыл бұрын
@@LockyourHubs4WDing was it a full rebuild?
@LockyourHubs4WDing
@LockyourHubs4WDing Жыл бұрын
@@deriusnorris4463 yes, change over long motor.
@deriusnorris4463
@deriusnorris4463 Жыл бұрын
@@LockyourHubs4WDing ouch. Thx.
@atagalongtours5401
@atagalongtours5401 3 жыл бұрын
Like to see that
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Looks like I'm going to have to schedule it up!
@blakegt4
@blakegt4 2 жыл бұрын
This process is not the same for the 1HD-FT or 1HD-FTE as they do not have glow plugs.. the only way to test compression is to pull the injectors and use a special tester.
@LockyourHubs4WDing
@LockyourHubs4WDing 2 жыл бұрын
Thanks for the tip!
@anthonyhay4236
@anthonyhay4236 Жыл бұрын
My 1hz has 350-370 around that for all 6 cylinders. I wonder why its not 450+
@LockyourHubs4WDing
@LockyourHubs4WDing Жыл бұрын
Probably worn.
@anthonyhay4236
@anthonyhay4236 Жыл бұрын
@@LockyourHubs4WDing maybe but doesnt burn oil and has bugger all blowby
@markshort9098
@markshort9098 2 жыл бұрын
You wouldn't bend valves from hydrolic lock but piston, rod or bearing damage is pretty much guaranteed
@JackLockyer-bt3sz
@JackLockyer-bt3sz 9 ай бұрын
🤠
@LockyourHubs4WDing
@LockyourHubs4WDing 9 ай бұрын
Cheers
@tituslane4929
@tituslane4929 Ай бұрын
Cant this be used as a leak tester as well?
@LockyourHubs4WDing
@LockyourHubs4WDing Ай бұрын
I guess so.
@tituslane4929
@tituslane4929 Ай бұрын
@@LockyourHubs4WDing many thanks.... I mean does it need to be tdc for checking a suspected head gasket? With this its pretty random but once pressure is reached watch the gauge go down ? Is that correct? Thanks
@LockyourHubs4WDing
@LockyourHubs4WDing Ай бұрын
@@tituslane4929 it's best to test at TDC
@tituslane4929
@tituslane4929 Ай бұрын
@@LockyourHubs4WDing thankyou
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
What's you best trick for diagnosing a sick engine?
@LockyourHubs4WDing
@LockyourHubs4WDing 3 жыл бұрын
Haha!
@BenMitro
@BenMitro 3 жыл бұрын
@Tony Munro Yep, that's my go to fault finding... :)
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