Hi all, new guy here, and what a great forum!
Just a quick question (Im sure the first of many)
I have been reading about the pros and cons of bosch pumps or Lucas pumps, whats the record on the denso pump?

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Regards,
Richard

1999 Hilux

Very good I believe.

I have a 12H-T HJ61 Landcruiser with a Nippondenso pump. The 2H uses a similar pump and there are a number of successful conversions. See the thread titled "Vehicles converted and successfully running on WVO"

One advantage of these inline pumps is that they have a separate lift pump. This enables you to do a quicker purge by feeding diesel straight into the injection pump on start up and shut down. See the thread on "Using separate lift pump and IP for a quick purge" which is particularly relevant to the 12H-T with it's high return flow out the back of the pump, and less relevant to the 2H which has no return flow. However the idea still stands.

From what I understand, the vulnerable Lucas pumps are not common in Australia. The majority of diesels do not have them. If you've not got one of them, then probably whatever you do have will do okay. It's always an issue of viscosity and flow. How you achieve the required viscosity and flow to make the thing run is what we all are here to figure out.

Tim

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Toyota Landcruiser 1989 HJ61 Manual Wagon
12H-T turbo Direct Inj.
100% WVO, 30 plate FPHE, 12mm fuel lines, twin OEM filters in parallel (with single filter backup) controlled by 2x12mm motor driven ball valves with full temp and time automation (Jaycar temp kit). 28 psi, 2 Bar, 2.4 litres per min Electric fuel pump for fast diesel purge. 3 sec delay (2 x 4700uf capacitors) in purge time before diesel is returned to diesel tank. Runs with +80°C vege temp.

I have found the ones in 1hXXX engines (1HD-T, others have found 1HZ) that they dont like air in the fuel. For some reason they spit out a seal and they "do an impressive exxon valdez impersonation" pumping oil out at an alarming rate.

It requires a 20c part to be replaced, but it takes 8 hours to do so. (requires the injector pump to be removed) I removed the CAV filter and replaced it with a toyota one. Perhaps I am an idiot, but the toyota ones are idiotproof.

Apart from that no worries.

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cheers
Chris.
1990 landcruiser 80, 1HD-T two tank, copper pipe HE+ 20 plate FPHE, toyota solenoids and filters. 1978 300D, elsbett one tank system.

Nice looking Hilux.
It seems all pumps are either Bosch or Lucas or 'clones' of Bosch or Lucas.
I'm pretty sure your denso pump on your Hilux would be a Bosch 'clone'.
If so what you have read about Bosch would apply to your denso.

Thanks for your replies, I'm pretty keen to go the two tank system; what with diesel around $1.75 a litre!
As far as switching between the two systems, how to prevent the small amount of cross contamination when you switch from diesel to SVO and visa versa?


**Oops my bad, I just found the subject already covered**
http://www.biofuelsforum.com/svo_use...rtup_tank.html

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Regards,
Richard

1999 Hilux

BJBlaster is using single tank on his 2.8 hilux:
http://www.biofuelsforum.com/svo_use...onversion.html

Oh!?!?! Hey this is perhaps the single most useful pointer I've stumbled across on this forum, if true (in terms of vehicle choice). Apologies for somewhat hijacking the thread...

The OBVIOUS choice of brand (unless a mobile museum is your thing) is the ubiquitous Toyota. Since I do NOT need a 4WD it'd be the Hilux or something like it but they seem overpriced compared to say the Holden-badged Isuzu.

If in fact a 2H-engined Toyota does not have a return line this dramatically simplifies a 2-tank solution so 1) is this really the case 2) how does this engine manage without the cooling/lubricating/pressure-relieving benefits of a return line?

Would really appreciate a knowledgeable person on this subject to clarify this for me as it makes a big difference to where I put my money, thanks Felix.

Nothing wrong with the Holden-badged Isuzu and if you don't need 4WD a Rodeo could be just the thing for you.

2H toyota engine (6 cyl) comes in LandCruisers, not hilux. Hilux uses 2L, 3L, 5L engines all do have a return line as do later model landcruisers (1HZ and 1HDT engines).
Read more on the forum before making any expensive decisions.
Ask more questions if you like.

Hi felix,

I'm no expert on other models but I know my own vehicle well. I choose to keep my older 4x4 HJ45 Troopy because it suits it's purpose well and never let me down.

In the bush it's often my old troopy that helps out the newer flash shopping trollies when they break down or get bogged up to the doors in mud holes.

The inline nippondenso [clone] ip's are tough units and would seem to be the ip of choice for wvo. The "H" series of Toyota motors do not have a return to tank fuel line from the factory because thats the way they were designed. This is handy for those of us who choose to convert these engines to wvo. We can use a manual 3 way ball valve/tap instead of the 6 way electonic pollak. There are also 3 way electric valves if you choose. Tim and Brian have gone one step further and made/designed a electric 3 way ball valve/tap themselves.

The answer to your question about the lube, cooling and pressure is not so relevent with the inline pumps. They were made to have high tolerances for the different tyes/quality of diesel fuels and conditions found around the world, where the vehicles were being marketed. You should read HC11's sticky at the top of the thread list for svo/wvo if you have not already.

The problem with newer diesel vehicles is they have engines and ip's designed more and more for higher fuel ecomomy, lower emissions and a new different standard of diesel fuel. These engines include more fuel sensors and electronic injection, ie/ new versions of common rail. These engines are going to be much harder and expensive to convert to run on wvo. If they can be converted at all.

If you are going to buy a vehicle to convert you don't need to buy a 4x4 or a antique, many vehicles are suitable for conversion. Read 98Troopy list of converted vehicles thread,

God bless froggo.

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HJ45 Landcruiser Troopy
SVO/WVO Converted 18/01/08

the rodeo diesel in earleir models eg pre03 were very rare in 4x2 so i doubt your chances of landing one. I have had 2 rodeo diesels 94 and 01 and both have been exceptional vehicles but I wouldn't run them on WVO due to direct injection. of cource many are running DI SVO conversions its just that i wouldn't. I know that the same vintage tritons were IDI.
what vintage of vehicle are you after?

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Cheers
Nick.

Roidio 2001 Holden Rodeo 4x4 2.8L TD. 2.5" Straight through exhaust sytem, heat exchanger shower system. 2" Body Lift,
And lots of fruit, B100 for 25,000 no problems.

Elsa 1983 Mercedes-Benz W123 300D. The Fastest Merc in Oz, Loving B100 Burgers