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Thread: Converting a Toyota Hiace to SVO?

  1. #11
    Join Date
    Jul 2008
    Location
    Nelson Bay & Sydney
    Posts
    42

    Re: Converting a Toyota Hiace to SVO?

    Here's an update on the van conversion:

    The 5L 3.0 litre engine seems to be in good condition and is the same as in a hilux except for periferals like air intake, battery, heating hoses, etc. I've replaced the timing belt (155,000km) and all the fluids and filters. The injectors have been cleaned and recalibrated. The valve clearances have been checked and adjusted. The glow plugs have been renewed. The compression has been tested and all cylinders are within 5% of each other (42 - 44 Bar).

    If anyone nearby wants to borrow the compression tester you are welcome too, just send me a PM. It has a glow plug adaptor with 10 x 1.25mm thread.

    I was suprised to find that the engine will start from cold (7 C engine temp and 5 C ambient temp) with the glow plugs not connected and strarts within one second!

    The van is now in the good hands of Fitian who is doing the conversion. The plan is to move the battery and use this space to fit most of the parts.

    The original tank with 5/16" and 1/4" lines will stay as the dino tank. A plastic tank will be used inside the van for vegoil.

    The vegoil will flow through 1/2" hose to a HE then its own filter to a three port pollak. The dino will flow through its own filter to the pollak, then both fuels will follow the some path through another HE and small filter to the IP after which they will return to their respective tanks via a second three port pollak.

    During initial purging the vegoil from the HE and IP can be returned to the veg tank and sould allow the startup tank to stay resonably clean therby minimising the risk of gumming the injectors and/or coking the rings.

    Cheers

    Paul

  2. #12
    Join Date
    Nov 2007
    Location
    South Coast, NSW
    Posts
    870

    Re: Converting a Toyota Hiace to SVO?

    Fitian is doing it then.
    Well its in good hands congrats on a good choice.
    Lets hope your filtering is as good
    Cheers Nick.
    Cheers
    Nick.
    Harold 2002 Toyota Landcruiser 105 series. 4.2lt turbo glide turbo, Too lazy to make bio nowdays times money. 3'' lift.

    Roidio 2001 Holden Rodeo 4x4 2.8L TD. 2.5" exhaust sytem, H/E shower system. 4" Lift, Airbags, And lots of fruit, B100 for 55,000 . SOLD

    Elsa 1983 Mercedes-Benz W123 300D. Still The Fastest Merc in Oz, Self built and Female proofed. COUSINS NOW

  3. #13
    Join Date
    Sep 2006
    Location
    Sydney
    Posts
    863

    Re: Converting a Toyota Hiace to SVO?

    Quote Originally Posted by RODEONICK View Post
    Fitian is doing it then.
    Well its in good hands congrats on a good choice.
    Cheers Nick.
    Thanks for your kind words Nick,

    This Van is now on the road running on wvo.

    I have used a 30 FPHE installed under the van in a higher level than transmission. And a 12 FPHE before the IP.

    Two Pollak valves are also installed to manage fuel feed and return

    Moved the battery to behind driver seat. and installed both filters and pollaks in place of the battery.

    Installed a temp veg tank inside the van. and run steel fuel lines under the van from veg tank to before veg filter.

    In case you don't know much about this van, The engine in under front seats. Every thing is very tight.

    A heat and vaccuum guages are installed on the fuel line right before the IP.

    Everything I have moved/installed is reversable.

    Heat guage is reading just under 80 C and vaccuum max reading 9 IN-Hg on veg and max 3 IN-Hg on diesel.

    We managed to take couple of photos of what we can see.

    I hope that Paul enjoys his work van for many years to come.
    Fitian
    <><

  4. #14
    Join Date
    Apr 2006
    Location
    New Zealand
    Posts
    621

    Re: Converting a Toyota Hiace to SVO?

    Quote Originally Posted by Fitian View Post

    Every thing is very tight.
    Yep, very true. Nice work!!

  5. #15
    Join Date
    Dec 2007
    Location
    Lake Macquarie (just south of Newcastle) NSW
    Posts
    1,363

    Re: Converting a Toyota Hiace to SVO?

    Quote Originally Posted by Fitian View Post

    We managed to take couple of photos of what we can see.

    I hope that Paul enjoys his work van for many years to come.
    I'm sure he will. The photos show another example of Fitians meticulous workmanship.

    Well done.

  6. #16
    Join Date
    Jul 2008
    Location
    Nelson Bay & Sydney
    Posts
    42

    Re: Converting a Toyota Hiace to SVO?

    I'm on the road burning veg! Wahoo!

    Thanks to Fitian for his work on the van. Thanks also to those on this and other forums for posting so much info and maintaining the WVO community.

    It was surreal to be driving on used cooking oil. The power seems the same and the only real difference is the slight changes to the engine sounds and the BBQ smell

    Here are some more photos of all the hoses, fittings, valves, FPHE's and filters that Fitian packed into the engine and battery compartments. Well done!

    The third photo is of the IP. What is the thing on the IP with coolant hoses attached to it??

    Cheers

    Paul

  7. #17
    Join Date
    Dec 2007
    Location
    South Australia
    Posts
    1,243

    Re: Converting a Toyota Hiace to SVO?

    Quote Originally Posted by 03Hiace View Post
    I'm on the road burning veg! Wahoo!

    Well done!

    The third photo is of the IP. What is the thing on the IP with coolant hoses attached to it??

    Cheers

    Paul
    Well done indeed.
    That thing ion the IP is a device which retards the injection timing until the engine warms up.
    Johnnojack
    4WD Isuzu Jackaroo 3.1 200000km on WVO,(2020) 2 tank home built system 6 solenoids FPHE, heated filter fuel line and tank pickup for thicker oil. Mk. 9 version now and no changes planned as trouble free.
    Mercedes W201 190D 1986 model: 2 tank system, bigger fuel line from tank, no heat exchanger, electric pump for diesel 22000km so far

  8. #18
    Join Date
    Sep 2006
    Location
    Sydney
    Posts
    863

    Re: Converting a Toyota Hiace to SVO?

    Quote Originally Posted by Johnnojack View Post
    Well done indeed.
    That thing ion the IP is a device which retards the injection timing until the engine warms up.
    Thanks everyone for your kind words.

    Johnno, can you please give more info about this feature/device?

    Thanks
    Fitian
    <><

  9. #19
    Join Date
    Jul 2008
    Location
    Nelson Bay & Sydney
    Posts
    42

    Re: Converting a Toyota Hiace to SVO?

    Hi everyone,

    Here's an update on the Hiace.

    The van has clocked up 1,700 km on veg so far and is running well. We recently went on a camping trip around Glouster, and one morning the ambient temperature was - 5 C with the engine a cold 2 C (and ice inside the van) and the engine started within one second, so my purging seems OK.

    The vacuum gauge reads 10 "Hg when the veg in the tank is cold and gets down to 4 "Hg once the tank has warmed up (it gets up to 65 C).

    A fuel pump has been fitted to the veg supply at the outlet from the veg tank. Itís a walbro FRB-5-1, 10 psi 225L/m and pumps 1.5 L/m of cold vegoil. This pump has removed any concerns I had about the possibility of air leaks developing on the veg fuel supply as the vacuum/pressure gauge now reads 1psi (just before the IP). The pump has also improved the acceleration times as follows:

    without pump
    0-60 km/h 11 sec
    0-100 km/h 26 sec

    with pump
    0-60 km/h 10 sec
    0-100 km/h 22 sec

    There used to be a buzzing sound coming from near the head/rocker cover when on veg. Since the walbro was fitted this sound has stopped. The engine still runs with the walbro turned off, although the buzzing sound returns. What are peoples thoughts on this? Fuel starvation??

    Cheers

    Paul

  10. #20
    Join Date
    Apr 2006
    Location
    New Zealand
    Posts
    621

    Re: Converting a Toyota Hiace to SVO?

    buzzing sound
    I've had this one too. Is connected with fuel starvation. I believe it's the valving inside the IP. It's very complex in there! That kind of sound is very hard to locate.
    How much capacity does your filter "have in hand". Tests I did showed that our IP's process 30litres of fuel per hour, most of which gets returned to the tank! All this means that the filter needs to be able to pass a generous amount of fuel with ease.
    Hindsight is a wonderful thing, but if I was running the popular CAV296, I would use two in tandem (parallel).

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