Replacing a 2.5d4d with a 3.0d4d engine???

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DawidT
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Vehicle: Toyota Hilux, 2.5D4D, DC 4X4
Real Name: Dawid
Location: Witbank

Fri Feb 28, 2014 2:44 pm

Guys, some advise please :?: I bought a very nice 2.5 d4d recently. I can get hold of a 3.0 d4d engine (new) at a VERY decent price. I need to start looking at replacing my injectors (230 000km on the clock). The motor is in very good nick and has a full agent service history.

My thinking is; replace injectors, put free flow exhaust and install an intercooler. If I add all the costs it comes out to a fair amount of money. I believe that I can buy the 3.0l motor and sell my current 2.5l motor and break even?

This is now where I need some help:
1) Is it possible to replace my current motor with the 3.0l motor
2) What extra mods do I need to do (the bonnet scoop is one!)
3) What about the engine management
4) What price should I aim for when selling the complete 2.5l motor and is there a healthy market for 2nd hand motors
5) Has anyone done it before and is it a good idea
6) Any other advice on what to replace or service at this high kilos

My plan is to keep the Hilux for a very looooooooong time. The car is in very good condition, mechanically, exterior body and interior.

Thanks,

Dawid.

Mars
LR4WD, Lockers, Crawler Gears
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Real Name: Marnus

Fri Feb 28, 2014 8:46 pm

The 1KD-FTV and 2KD-FTV engine blocks are virtually identical. I haven't researched it in detail but it should be close to a bolt-in conversion assuming the 1KD is complete.

MCHILUX
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Fri Feb 28, 2014 9:08 pm

You'll need the gearbox, wiring harnasses , Turbo driver ecu and plenty of hours and patience. Better to buy a 3.0l Hilux

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DawidT
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Tue Mar 04, 2014 5:31 am

Thanks guys for the info so far :thumbup: At the moment it looks like it is not a good idea to swop engines atound!

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mcw
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Tue Mar 04, 2014 7:04 am

I need to start looking at replacing my injectors (230 000km on the clock

Hi Dawie

230000 kilo sounds low for injector replacement .I have a 2.0 l Ford TDCI 330000 kilo injectors are still good ,maybe they can just be serviced


Martin

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DawidT
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Real Name: Dawid
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Tue Mar 04, 2014 7:25 am

Hi Martin,

I had the Hilux in to install a Dastek Unichip. The guy who did it told me that I need to start looking at replacing my injectors at some stage? He quoted me R10 000 for the lot. I am not a diesel fundi and do not know the ins and outs for injectors, hence the idea to replace the motor and get all new stuff. The finances made sence to me if I can sell my motor. This obviously, was based on the assumption that is a straight swop.

What is your view on reconditioning injectors and the cost?

Cheers.

dd6
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Tue Mar 04, 2014 10:33 am

I'm starting to sense a trend with the guys at dastek telling everybody to change their injectors. I've heard it twice before!! That same bakkie went to the dealers, which said the injectors were still in good condition. Just wondering...

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Haboob
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Tue Mar 04, 2014 2:46 pm

Get a second opinion if it is not going to cost you. Have not heard of that 2.5 motor needing to have the injectors changed on a low milage.
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DawidT
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Thu Apr 10, 2014 11:11 am

Just an update from my side. I did not replace the motor after listening to some good advice :clap: however, I de-catted the exhaust, replaced the silincer with a free flow silincer, installed an Dastek unichip and a Cirrus inter cooler. I am getting the Hilux back this week-end and will be able to comment on the "new" performance by next week :yahoo:

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jacques kotze
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Thu Apr 10, 2014 11:43 am

I sold my 2,5 d4d with 330 000km on the clock with the original injectors still as I got it. I did a check at Toyota on the injectors and all was still in spec. I only filled up with 50ppm where possible.

sbuyoungbaby
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Tue Dec 05, 2017 9:35 am

Hey dawid ,I am going to speak to those who want to change from 2.5l to 3.0l d4d, but they want to do it to their Toyota quantum.well the 3.0l fits but there must be a few adjustments,if you have your 2.5l engine don't sell it because you will need a few things from it.here is what you'll need from your 2.5 engine:intake manifold,oil filter stand that has a cooler in it,turbo,the crankshaft sensor clip on is different and wont start if your colour codes are mistakenly connected,you'll need a oil samp because the 3.0 Bakkie has a oil samp that holds a bit more oil so in the Bakkie the samp is a bit bigger it wont fit on your quantum because of the cross member chest so u need your 2.5l samp and the oil strainer stand/filter the one that sucks oil from samp to engine has to be cut and joined by welding to have the right position to mount it to accommodate your samp.yeah guys that's about it,it should run if u get your crank sensor connected well.good day I love toyota

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dalkill
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Wed Dec 06, 2017 7:55 am

Eish... that sounds like ALOT to do to change the engine.
Not to mention scary... changing the sump with lower capacity than the 3.0 was designed for.
Not for me thanks.

Don't know if Quantam came with 3.0, but for hilux, i'd rather sell 2.5 and buy 3.0
2007 d4d 3.0 D/C 4x4 (Mar 2016 - current) (Buraaq V)
2003 Isuzu KB300 tdi LX D/C 4x4 (May 2015 - Feb 2016) aka Buraaq IV
2000 hilux DC 2.7 4x4 (Jul 2011 - Sep 2012) aka Buraaq III
1999 RXI 20v (Nov 2009 - Jul 2011) aka Quicksilver
1990 hilux DC 2.2 4x4 (Jun 2008 - Jul 2011) aka Buraaq II
1997 corolla 160i GLE (Feb 2007 - Sep 2009) aka Green Goblin
1990 GLI twincam (still my fav rolla) (Oct 2005 - Mar 2007) aka Wit Blitz
Golf GTI 2.0 (temp insanity for 2months) (Jun 2005 - Aug 2005) aka A mistake
1993 hilux SC 2.2 4x4 (April 2003 - Sept 2005) aka Buraaq

TOYOTA IS MY LEWE

sbuyoungbaby
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Wed Dec 06, 2017 2:28 pm

No,quantum comes out with a 3.0l

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pietpetoors
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Wed Dec 06, 2017 2:49 pm

Thank you sibusiso, that is valuable information.
So the sump and oil pickup change is only when you want to install it in a Quantum, not a bakkie, bakkie I presume you keep the original sump?
Only Dead Fish Go With The Flow!
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sbuyoungbaby
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Thu Dec 07, 2017 12:17 pm

Yes Bakkie you keep the Same sump

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