Hilux 4x4 Forum

daneduplooy

Here's a reference picture from when we replaced the cylinder-head a while back, in which you can see the mess caused by the leaky seal. Because of the turbo pressure, it kind of sprays the oil out everywhere (instead of it just dripping out). The throttle sub-valve (smaller butterfly) is visible at...

daneduplooy

Hi Ian/Marnus I unfortunately did not take pics as I'm a bit short of time these days and was rushing :( (sorry) . Here's are some links with pics (which I looked up whilst researching the problem), which should give a general idea of the situation: http://toyotasurf.asn.au/forum/viewtopic.php?p=249...

daneduplooy

We've had oil leaking out around our throttle assembly since we purchased our vehicle. I *finally* figured out what the problem was the other day: It is apparently "normal" for some oil to come in to the throttle assembly. It looks like it comes from the PCV (Positive Crank Ventilation). F...

daneduplooy

So as we were about 100km out of Jhb, leaving for an isolated weekend away, we stopped somewhere and our starter motor decided it was on its way out. It would turn to engage the engine, but as soon as the engine began to fire the starter motor would disengage and spin freely (before the engine had a...

daneduplooy

KZ-TE's are infamous for cylinder-head cracking - definitely something to look at. Ours cracked "gently" and would slowly blow the water out of the radiator (only start overheating after about 400km of driving). Blowing the radiator sounds like something fairly catastrophic occurred, allow...

daneduplooy

So we eventually took the vehicle in to Northern Diesel to get the injectors and pump checked. They were very quick (took less than a week) and called at each stage to let us know what was happening. There is a noticeable difference in power after getting that done, especially above 2,000 RPM when t...

daneduplooy

Funny enough I did not really feel a huge improvement. Thanks for the info George. I'm sorry that you didn't receive any huge power gain, but the information is useful. I went the free flow way with the intercooler ,i have also replaced the electronic diesel pump with a machanical one ,and that has...

daneduplooy

They told me you dont need to calibrate the pump.Apparently because it is electric the ECU does it.Is that true or do you need to get it calibrated. George, I am most certainly not an expert, but if the injectors were new then I can't see that they would need any further calibration. So far as the ...

daneduplooy

Hi Thabo & George Thanks for the advice! :thumbup: Now that you mention the exhaust system, I remember that we had a problem with lack of power on a 2.8l BMW (petrol) and removing the catalytic converter (clogged I assume) solved the problem. The BMW is a '95, so this being a '98 I assume it wou...

daneduplooy

Hi Guys I'm wondering if our KZ-TE is perhaps not producing as much power as it should. Top-speed (on an official raceway, of course), with a level road, is about 140-150 (bearing in mind that this is with a Prado and not a Hilux). Is there anybody else with a KZ-TE who is able to compare? I drove t...

daneduplooy

Seems like these are KC HiLites - agent list at http://www.kchilites.com/find-dealer/international-dealers/ . Will see if I can get hold of someone tomorrow. [Edit: Part number should be #3028 .] [Edit 2: Got in touch with Paul Coulthard from Assegai Importers, who are the agents for KC HiLites in S...

daneduplooy

I honestly have no idea (got them with the car) - there's a big "H" on them and some "H" codes (H-605 and H-623 on the lens, H3 12V 100W on the bulb), so I think it might be Hella? I'm not sure if the actual "mount" is related to the lamp at all (have almost no experien...

daneduplooy

Hi Guys

Does anyone know where I can get a new headlamp seal (/mount - not sure what to call it) as per the below pic (broken one on the right)?

: Headlamp.JPG (182.13 KiB) Viewed 673 times

The one in the picture is obviously torn / perished (headlamp / mounting clamps already removed).

Thanks!

daneduplooy

Thanks! :thumbup: Seems like it could be normal then. Probably blow-by past the pistons? When I replaced the head on ours recently the pistons still seemed to be sitting pretty tight in the cylinders, but I suppose that the combustion pressure must be large enough to be slipping past. Our engine has...

daneduplooy

Hi Nico

Thanks a mil - really appreciate it!

I can't remember if the engine was hot or cold last time, but I just tested again now with the engine cold and it was doing the same thing.

daneduplooy

Hi Guys I recently took the oil filler cap off of our KZ-TE whilst the engine was idling, and noticed (what I consider to be) a surprising amount of pressure coming out of the crankcase. It pulses similar to how the gases coming out the exhaust pipe do (if you were to hold your hand behind the exhau...

daneduplooy

Thanks for the advice Piet! I'm not sure if the bolts on this head require re-torquing though? (Nothing about that in the engine repair manual?)

daneduplooy

Here's the contents of the "Engine Overhaul Gastket Kit" (04111-67025): 04111-67025 Gasket Kit Contents.JPG Sundry notes: - I couldn't get the one stud bolt out of the old cylinder head (just ended up stripping it). This was luckily just a bolt for connecting an external pipe to the head s...

daneduplooy

Sorry for the long intermission. Gemini were very quick with delivery, but the exhaust manifold was not of the right type: Exhaust Manifolds.JPG It took a few more days to get the right part. There was also a note from AMC which came with the cylinder head, begging us to use high-quality coolant wit...

daneduplooy

Thanks for the concern guys - much appreciated!! :) The pitting seems to be around the edge of the main combustion "woof" which comes out of the combustion chamber (please see the close-up pic of "Cylinder 4 Cleaned 1" posted on 11 March). I am still pretty convinced that it is d...

daneduplooy

Thanks Tumelo, I'm leaning that way as well. Probably going to start ordering parts and spending money tomorrow *grit teeth*

.

daneduplooy

Second-hand engine (70,000-100,000 km) from Japan Auto Trading is approximately R17K excl. VAT. Japan Auto Trading referred me to Master Conversions to do the replacement. Spoke to a very nice guy there called Vish. Says that he's replaced plenty 1KZ-TEs, and will personally go and pick out the best...

daneduplooy

Thanks for the offer Werner. As per Hoppy's advice, we're looking at the genuine Toyota head gasket. I'm asking about the gasket kit - all the other little gaskets (intake, exhaust, etc, etc). Did you use the VR ones?

daneduplooy

On the topic of gaskets: We're looking at a genuine head gasket, as per Hoppy's advice. We need to decide what to do with the rest of the gaskets though. Victor Reinz cylinder-head gasket kit (incl. head gasket, which we wouldn't use): R788.60 (excl. VAT). Genuine cylinder-head gasket kit (excl. hea...

daneduplooy

Cleaned intake manifold:

Intake Mani Clean 1.JPG: (280.43 KiB) Downloaded 2853 times

Intake Mani Clean 2.JPG: (232.99 KiB) Downloaded 2853 times

daneduplooy

Hi Marnus I speak out of ignorance, but I don't think that the gaskets for these engines have a "metal ring" part? (The one I've seen for a petrol engine did). I think the gaskets for these engines are just one solid piece of metal? Gasket 1.JPG Gasket 2.JPG There is an indentation in the ...

daneduplooy

Regarding cleaning of caked-on grease oil, my (somewhat brilliant :D: ) wife came up with the following (she is also responsible for the crankshaft-pulley removal mentioned previously btw): Vegetable oil. It seems counter-intuitive (to me at least) but it works brilliantly. Mix in some coarse salt a...

daneduplooy

Hi Andre Thanks for the advice! :thumbup: I'm fairly certain that the pitting is due to the coolant getting into the cylinder. I am by no means any sort of expert however, and it could well be due to knocking as you have suggested. We'll have to think carefully about what to do - I really don't want...

daneduplooy

Hi Werner I have no idea. Is there perhaps anybody more knowledgeable who can answer this? Do you think that the damage is severe enough to warrant replacement of the block? I should mention that all the cylinders have a sort of a little widening chamfer right at the top (if that makes any sense...)...

daneduplooy

Hi Tumelo

It's from the coolant getting in there. I'm not sure exactly why it causes the pitting (possibly similar to rusting?).

daneduplooy

Here's how things look after some cleaning: (First with a window-scraper, then some turps, then a dremel with brass brush. I taped everything up after I realised that the brass brush was shedding bristles - really hope that it's not going to have caused any [potential] problems.) Block Cleaned 1.JPG...

daneduplooy

Quick tip for any other DIYers tackling this sort of job for the first time: The stud bolts on the cylinder head are really easy to remove (probably only finger tightened at original manufacture). I for some or other reason assumed that these were going to be the tightest thing on the head, but that...

daneduplooy

For anyone else wondering if their 1KZ-TE head is cracked, here are the symptoms we were having: - Difficulty starting. [Edit: Still having some difficulty starting, even after the cylinder-head replacement. Probably down to fuel-pump / injectors.] - Big white puff/cloud of smoke at startup. [Edit: ...

daneduplooy

Hi Tumelo Yip, AMC is definitely the way to go. Prices from Gemini Parts: Bare - R5,500 excl. VAT Complete - R8,500 excl. VAT Everywhere else I've checked is more expensive. Victor Reinz gasket kit - R788.60 excl. VAT Cylinder-Head Bolts - R285 excl. VAT Not sure what else we're still going to need....

daneduplooy

It doesn't look like cylinder 4 has been having such a great time lately. Coolant has clearly been getting in, and has "crystalised" inside the cylinder. It's not very clear in the picture, but there's a big "blob" of coolant sitting on top of the exhaust valve (as well as the li...

daneduplooy

: 9 - Intake Mani A.JPG (42.23 KiB) Viewed 21972 times

: 10 - Intake Mani B.JPG (46.19 KiB) Viewed 21972 times

11 - Exhaust Mani A.JPG: (79.45 KiB) Downloaded 3018 times

12 - Turbo.JPG: (61 KiB) Downloaded 3018 times

daneduplooy

As previously mentioned , we're busy attempting a cylinder-head replacement on our 1KZ-TE. Here's how things look with the head off (sorry, I do realise that it's a lot of pictures...): 1 - Block.JPG 2 - Block Cy 4.JPG 3 - Head.JPG 4 - Head Cyl 3 & 4.JPG 5 - Head Cyl 4.JPG 6 - Block Cyl 3 & ...

daneduplooy

Hi Guys We're busy attempting a cylinder-head replacement on our 1KZ-TE. I plan to post all lessons learned once we're (hopefully successfully) done with the job. Last night I got stuck trying to remove the camshaft timing pulley, and wanted to share how we eventually did it in case it might help an...

daneduplooy

Hi Tumelo I'm not sure, something for Nico/Craig to answer :). I suppose that too low a pressure rating will lead to the coolant boiling. Too low a rating could also result in too much coolant being pushed into the expansion tank, causing it to overflow (and then consequently not having enough coola...

daneduplooy

In case anybody else is interested, I just found this in the 1KZ-TE Repair Manual:

Standard opening pressure: 93-125 kPa (0.93-1.25 Bar)
Minimum opening pressure: 59 kPa (0.59 Bar)

daneduplooy

Thanks very much Eric!

daneduplooy

Hi Guys

Happy New Year to all :)

We need to do a 300,000km service on our Prado (1KZ-TE) - does anybody have any recommendations on the best place to get this done (dealerships / good private guys / etc)? We're in Midrand.

Thanks!

daneduplooy

Hi Nico & Craig

Thanks for the advice - very much appreciated. Best wishes for the rest of the holiday season!

Cheers

daneduplooy

Hi All

Just wondering if anybody knows what the pressure rating for the radiator cap on a 1KZ-TE should be? (Also, I assume that it would be the same for this engine in all vehicles, regardless of body?)

Thanks!

daneduplooy

Whoah Mud Dog, 3:25am? You really take this job seriously! :D: 120,000km is a long time... We did look at reusing the pressure-plate, but it was very badly worn (grooves, etc) - clutch was down to the rivets ( :oops: ). So it would have to have been machined in any case. If we do need to do this aga...

daneduplooy

Thanks for the reply Mud Dog. The pressure plate which fits on our vehicle is the thinner one (one with the pink mark in the pictures), so I don't think that the heat-sink characteristics would be the issue. One might think that Toyota made the pressure-plate thicker in later models in order for it ...

daneduplooy

Hi I am new here, so please try to excuse me getting into the nitty-gritty as a newbie :). We are having to replace the clutch on our 1KZ-TE powered Prado at the moment, and have run into an interesting "problem" with the thickness of the flywheel / pressure-plate. I haven't been able to f...

daneduplooy

Hi Guys Thanks for the warm welcome in the "Meet the People" section. These are some pictures of "Scott". He's called Scott because he drinks a lot - like a Scotsman :). He is our first 4x4 (and Toyota) and we've been really *amazed* by what this vehicle can do. We often look at ...

daneduplooy

Hi All! I'm brand new here. I don't have a Hilux, but I do have a '98 Prado with a 1KZ-TE, which is also featured in some Hiluxes (after browsing these forums a little, I feel like I should apologise for not having a D-4D for some reason - so sorry :) ). Thanks for all the useful information I have ...

Search found 49 matches