Iveco 4x4: change my 2.5 td?

Dear All,
I'm preparing my Iveco 4x4 40-10 built in 1989 for a trip.
The 2.5 td is fine but I wonder if I can replace her by a more potent one.
Possible? Any experience?
Rob

You starting building it in 1989 and it's not finished yet?

Ignore me Rob, most people do! Good place to come for advice on Ivecos as there are quite a few owners who pass this way, hopefully one will be along soon.
Welcome to the funny farm forum BTW!

yes hi and welcome,

Tom Mc wrote:

You starting building it in 1989 and it's not finished yet?

Ignore me Rob, most people do! Good place to come for advice on Ivecos as there are quite a few owners who pass this way, hopefully one will be along soon.
Welcome to the funny farm forum BTW!

Sorry, perhaps my message was not clear. My Iveco is from 1989, later completed as a camper and in that sense ready but I did not use her for four years and have to prepare her for a new trip. I just wonder if I can put a stronger engine in.

Anything is possible if you have the engineering expertise, knowledge, and finances to do it. My 6.2L V8 diesel powered F20 is testament to this, but I would offer a word of caution, every conversion takes many times longer than anticipated, costs several times as much as predicted, and many give up on such conversions.

I would offer this advice, is your engine turbocharged? is it intercooled? if so the best possibility is to uprate the power of your existing engine as many engines have upgrades throughout their lives.

Rob

The easiest way is not to replace the engine but to intercool it. what sort of condition is the engine in ?

Is it one of the Belgian police Ivecos ?

These machines are not rockets, go slowly and enjoy the journey.

Ive got hoses and an intercooler for sale

Hi rich do you know if the? copy Ive got hoses and an intercooler for sale. would fit an Isuzu 3.9 4bd1 in a land rover Defender.

roamingman wrote:

Hi rich do you know if the? copy Ive got hoses and an intercooler for sale. would fit an Isuzu 3.9 4bd1 in a land rover Defender.

Running that post thru google translate

It came up with an 'Out of cheese, reboot universe error' so you'll need to try again

See from my post in snow Leopard exebition

roamingman wrote:

Well have now found out about my Isuzu engine

The 4BD1 is a 3.9L big block direct injection diesel sold in Isuzu ELF trucks as well as marine and industrial applications from 1979. Power output was 125 PS.Peak torque is 280Nm at 1800rpm. Also known in Batangas, Philippines, As the "Barako," it being used in jeepneys.

The 4BD1T is a turbocharged version of the 3.9 L 4BD1, it was produced from 1980 and was fitted to Isuzu NPR trucks from 1986 and sold in the US. Approx 135PS peak torque is 330Nm at 1800rpm, also use in jeepneys in Batangas, approx 180kph on its high and low transmission they use.

My id is 4bd1 but it does have a turbo on.

Their is a photo in the thread,

Reckon he needs an intercooler and hoses for his Isuzu lump Rich. Known roamingman for years now, so can speak fluent Yodaese!

Yoda - can't you contact the breakers for an intercooler? Must be plenty of Troopers and Big Horns being broken, just a matter of finding one. Check out www.macks4x4info.com/index.php?option=com_sobi2&catid=16&Itemid=30

Failing that, you're going to have to bite the bullet and go to a specialist intercooler supplier. Alisport is not the cheapest, but definitely the best.

Tom Mc wrote:

Reckon he needs an intercooler and hoses for his Isuzu lump Rich. Known roamingman for years now, so can speak fluent Yodaese!

Yoda - can't you contact the breakers for an intercooler? Must be plenty of Troopers and Big Horns being broken, just a matter of finding one. Check out www.macks4x4info.com/index.php?option=com_sobi2&catid=16&Itemid=30

Failing that, you're going to have to bite the bullet and go to a specialist intercooler supplier. Alisport is not the cheapest, but definitely the best.

Yes will check them out, breakers up here do not have any motors that old.

Surely fitting an intercooler to that engine in a defender is not what it came from but what you can fit into the defender so the intercooler can come off anything if you can make the pipework fit. So which side is the turbo fitted and where is the air intake to the engine

Using a 300tdi rad would allow you to use a standard LR intercooler if the pipework can be made to fit. The biggest problem i had was rotating the turbo so you could get to the pipework.

To bring this post back to the origional posters question though .... I do know of an Iveco in Oz with a 6.2 GMC diesel in it but by all accounts it was a very big job to fit and involved alot of bodywork modification

Oh you can put later injectors in too that are supposed to give you another 10 horses - the 5 hole ones from a 2.8 but havn't found a cheap enough source yet

The problem with intercoolers from other engines are numerous, for example you have the flow rate which may be insufficient, you have the thermal transfer rate which may well be mismatched (its ability to cool efficiently) for that engine, and of course botching pipework, particularly extending it means more air friction, and this is just the beginning.

Gotta say I know very little about diesels, but isn't it the case for intercoolers that 'bigger is better'?

iveco4x4 wrote:

Surely fitting an intercooler to that engine in a defender is not what it came from but what you can fit into the defender so the intercooler can come off anything if you can make the pipework fit. So which side is the turbo fitted and where is the air intake to the engine

Using a 300tdi rad would allow you to use a standard LR intercooler if the pipework can be made to fit. The biggest problem i had was rotating the turbo so you could get to the pipework.

To bring this post back to the origional posters question though .... I do know of an Iveco in Oz with a 6.2 GMC diesel in it but by all accounts it was a very big job to fit and involved alot of bodywork modification

Oh you can put later injectors in too that are supposed to give you another 10 horses - the 5 hole ones from a 2.8 but havn't found a cheap enough source yet

Thanks for the info, it is a standard defender rad, my turbo is on the n/s of engine, will check out the injectors as well.

In theory yes, but if you go too large then you can reduce the airspeed through the intercooler and this can effectively suffocate the engine, overwork the turbo, and create a number of other issues; theory is fine but practice is somewhst different.

It is a big engine, been told they are not to bad on fuel, but people keep telling to fit a intercooler, maybe just try it as it is first, an wait and see.

iveco4x4 wrote:

Rob

The easiest way is not to replace the engine but to intercool it. what sort of condition is the engine in ?

Is it one of the Belgian police Ivecos ?

These machines are not rockets, go slowly and enjoy the journey.

Ive got hoses and an intercooler for sale

Thanks for your reaction and advice. My Iveco isn't an Belgian one but, quite heavily, built as a camper in Italy where we bought her years ago. I'm fine that she is not fast for we like travelling but I would like to having a bit more power eg. going uphill.
What effect has an intercooler, price etc.?

Assassin wrote:

Anything is possible if you have the engineering expertise, knowledge, and finances to do it. My 6.2L V8 diesel powered F20 is testament to this, but I would offer a word of caution, every conversion takes many times longer than anticipated, costs several times as much as predicted, and many give up on such conversions.

I would offer this advice, is your engine turbocharged? is it intercooled? if so the best possibility is to uprate the power of your existing engine as many engines have upgrades throughout their lives.

Thanks, Assissin.
The engine is turbocharged. What is your suggestion about uprating the power. Are there levels? Any idea about a price?
Rob

First you have to establish if its a turbo or turbo intercooled engine, if its not intercooled then fitting a properly designed intercooler is the way to go; if its intercooled then you can uprate your boost a little to give more power, but be careful doing this as many confuse torque and power, uprate for torque and don't over do it because you can overstress the unit or have to spend a fortune on internal components to handle the torque increase.

I would suggest looking at your engine and all the power variants it came with, then look at the specific differences between your unit and those with more power/torque. You often find that they have uprated internals such as pistons, crankshaft, and obviously shells for the big ends and mains; in addition they may have larger cooling systems, camshaft and valves, different head gasket, and ancillaries such as uprated oil pumps giving more flow rather than pressure.

If you can find the same engine as yours, but in a higher power output it may become worth swapping the engine, but beware of doing this before making considerable checks as many components will be different. Your cooling system will require changing to cope with the additional heat generated, it may be a turbo intercooled engine which means getting the intercooler and pipework as well. The bellhousing may be different so you would have to make or buy an adaptor to fit it to your gearbox, and obviously the clutch may be different to handle the extra power and may have a friction plate for a larger layshaft into your gearbox. In addition the air intake side may be different to handle the extra airflow and you may require this also.

If your engine is turbo intercooled and has electronic control then you can chip it, many manufacturers simply chip one engine for a range of power outputs as its the cheap and easy way to build one engine and offer a range of outputs, so you can do the same, mostly its a case of changing the ECU if you use manufacturer parts, or plugging in a modified chip from an aftermarket supplier.

Rob

Did you ever do anything with the truck.

Intercooling works for those engines, mine goes better uphill (1 gear better) and pulls away better too

Its not worth changing the engine, you could put a later 2.8 in but the common 4x2 engines are belt driven so if you want to play off road then the 4x4 engine is the better one to have (chain driven)

The other thing to do is replace the injectors for the later injectors - doing that alone is supposed to give 10 bhp

You can't chip them cos theres no ecu

If you use standard parts then you can pick them up off ebay -£30 for an intercooler, around the same for pipework. The most difficult thing to find is the turbo manifold off a xx-12 truck so the turbo can be rotated slightly to make the pipework fit. You will also need the intake pipe as the non intercooled points upwards, the xx-12 one points to the left

So if you can find these bits its fairly cheap. Allisport will build you one, fitted would be around £750 I guess

THis has been discussed endlessly on the Iveco 4x4 email list and it always comes back to making the best of your engine cos there are issues to do with sumps on many engines when trying to fit to the Iveco.

Hi, I'm new hear, just bought a 1996 35-10 (previously 40-10) 2.8 but HATE the power. What is this vehicle XX12 that your all talking about getting the manifold from?
Thanks

Hi Will ... welcome to the forum!

Sadly, Rich Clayton who posted this piece back in May 2013 is no longer with us. He passed away fairly recently, and he was the authority on Ivecos. Hopefully somebody else may be able to assist, but we've lost a good 'un. RIP Rich.

Hi, will-Dakar
Where did you buy the 40.10?
Im looking for a front differential for mine.

Regards Markus