Mitsubishi Delica Owners Club UK™

chrisfoster1971 · Posted: Fri Nov 16, 2007 8:35 Post subject: 1/4 tank 43 miles OUCH

Help !!

Does anyone have any ideas where to start looking. I decided to use the beast to go to work this morning and wished I hadn't. It has just used quarter of a tank at a steady 70mph to do 43 miles.

I am currently running 70/30 Diesel/SVO for the first time, does anyone know if this is normal. Also it was an absolute pig to start this morning which it never has been whilst on pure DERV.
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TyrantinTruro · Joined: 13 Feb 2005 Posts: 529 Location: Truro Cornwall

the colder it gets the thicker the veg oil gets hence harder to start, if its down near the bottom of the tank the higher the concentration of veg oil.if you have a large container try mixing the veg oil with a bit of unleaded and then add some diesel to it and shake untill its well mixed, as it won't mix very well in the tank
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Yojimbo · Joined: 01 Dec 2005 Posts: 1202 Location: Bucks

if you went a bit slower it drinks a lot less.

Philbski · Joined: 07 Oct 2007 Posts: 41 Location: Harlow/The Alps

Yojimbo, What a profound statement!

RichardK · Joined: 05 Oct 2007 Posts: 103 Location: West Midlands

1/4 tank is a meaningless measurement. My car can do 100 on the first 1/4 (helped in part by a 12% overread on the speedo) but often only does about 50 on the half to 1/4 left section.

As for doing 70, that's hardly pushing the old bus. My economy doesn't seem to drop much even when I'm holding 85 on the motorway (real, not indicated).
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chrisfoster1971 · Posted: Fri Nov 16, 2007 14:04 Post subject:

I am sure I will down to about the warning light time by the time I get home so 100% DERV then for me...and millers diesel additive of course.

But this can't be right when i calculated 18mpg a couple of weeks ago I thought that was awful but this is kinda "well its time to get rid" territory which I don't want to do.

Does anyone know if the pump timing can have this drastic affect as we did the pump seals a few weeks back I know the timing was exactly as it came off but is there anything to adjust like on a carburetor motor ??
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100% BIO DIESEL ! Well not quite at the moment

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Yojimbo · Joined: 01 Dec 2005 Posts: 1202 Location: Bucks

chrisfoster1971 · Posted: Fri Nov 16, 2007 14:54 Post subject:

I wouldn't consider 70mph to be out of the ordinary to be honest especially on the M1, if anything I may well have been the slowest thing on it at that time...

Had I been doing 85+ I would accept the consumption but this is rudy awful
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100% BIO DIESEL ! Well not quite at the moment

My Delica Album

Bob Ellison · Posted: Fri Nov 16, 2007 15:06 Post subject:

Tank guage increments isn't the best way to measure mpg. Razz

You need to measure litres used against miles done and it need to be over a few 'fill-ups' to get a reasonable idea.

If the Deli's engine is set up right you should still get high 20s with steady 70mph motorway driving.

:D
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keanaz · Joined: 17 Dec 2004 Posts: 27 Location: Exmouth, Devon

or was it very late at night?

chrisfoster1971 · Posted: Fri Nov 16, 2007 19:12 Post subject:

I really did do 70mph on the M1 but it was 5.15 in the morning Shocked

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100% BIO DIESEL ! Well not quite at the moment

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strangerover · Posted: Fri Nov 16, 2007 21:30 Post subject:

couple of things....

I have run 30% veg dino mix with no real detriment to MPG, yes it may be a pig to start on veg but once it warms up no difference to Dino.

Try new ADL (blueprint) plugs, I have just swapped, look in the starting section for my post.

try filling with 21L of veg oil then straight away fill up with Dino to the neck, then repeat when you next fill up, from that work out your MPG.

IF it is bad..... try changing your fuel filter, do you have smoke ? is it changing gear okay ?

bare in mind that veg oil has 15% less calorific value than Dino so like for like performance will give you slightly less MPG, but I run on Veg (now 50% mix) so drive for MPG rather than MPH, on Motorway the difference between 60 and 70 MPH is noticable, as is having 26PSI instead of 34PSI in your tyres.
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Mark

chrisfoster1971 · Posted: Fri Nov 16, 2007 21:47 Post subject:

I must admit I was talking to the wife earlier about getting some new plugs and possibly injectors if I can stretch to it and see what difference that makes. I have only just replaced the filters so don't think that is doing anything to blow things up. I have only used Morrisons rapseed oil so far with 12l of the stuff when I got down to 3/4 tank as I didn't want to push it too much. Lewis has mentioned that he used it with no detrement so took his advise but I am wanting to try corn oil as it seems people think it runs quieter. To be honest speed isn't that important, lets face it if it was I wouldn't be driving a Deli now would i Wink

As mine is rather sluggish anyway as I don't want it to drink like a fish. I have a good source of WVO but don't know what I could do to refine it back into a usable state and what would be involved.

It does smoke "white" when I start and then if i floor it, it does a bond style smoke screen for me but only when my foot becomes heavy. It does change gear okay aslong as the engine isn't reving to high, eg today I say between 65-70 at 2000-2200 rpm and it was drinking like a fish.

If you are using SVO mix is there anyway to boost the calorific value with additives ? I currently use Millers Diesel treatment
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My Delica Album

strangerover · Posted: Fri Nov 16, 2007 22:00 Post subject:

Not worth additive in veg mix IMO... the idea is to run cheap !

I have recently fitted new injectors, uprated ones from diesel Bob.

Mine does not smoke except on inital start up, the big puff of black smoke, other than that I can floor it and no smoke,
Lewis should be able to confirm as he has been behind me.

If you have had the pump out then a fraction out can make a big difference, as can sticking brakes !

veg oil on its own at the mix you have done is not the cause IMO
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Mark

THE KICK INSIDE · Joined: 31 Jul 2005 Posts: 1592 Location: Staffordshire

okay i will bite - how do you KNOW if the pumps out and what procedure do you use for getting it right....

i know I'm going to regret this one!
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chrisfoster1971 · Posted: Fri Nov 16, 2007 22:32 Post subject:

I am positive the pump went back exactly where it came out, as the marks were all lined up when it went back in.

Is there anyway of checking the timing of the pump etc to get the best out of it?

I can only presume that because the seals are new the pump is working slight differently, so the timing could be out couldn't it ??
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100% BIO DIESEL ! Well not quite at the moment

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THE KICK INSIDE · Joined: 31 Jul 2005 Posts: 1592 Location: Staffordshire

its not only timing as i understand it but adjustment on the fueling....you know one day i AM going to buy the Haynes diesel book just so i know what I'm talking about a bit more!
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A Delica - ITS LIKE A SWEDISH BRICK...ONLY BIGGER!

chrisfoster1971 · Posted: Fri Nov 16, 2007 22:40 Post subject:

if only it was like the good ole SU's on the Mini's I could play with those all day.

I imagine you can loosen the two bolts at the back and move it slightly to make a difference but which way ??

Where is Cheifie when you need him
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100% BIO DIESEL ! Well not quite at the moment

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strangerover · Posted: Fri Nov 16, 2007 22:48 Post subject:

well.... how to set a pump...

it varies a bit, not sure exactly on the Delica, but some engines use a DTI (Dial Test Indicator) Gauge to ensure the pump is lined up correctly.

I believe there are timing marks on the cam, crank and pump, all these would need to be exactly lined up, by exact a half tooth out on the timing chain could be enough to be off. That is why I will not do my own pump as I have not got a DTI gauge and the bottom pulley is not reliable for TDC.

there will be some one on here who will know how to set a pump and engine from scratch, I never trust timing marks even on a petrol engine, I would always line up using marks on the cam shaft and crank (not pulley).

Had a quick flick through the Russian site and there are instructions on how to set the pump relating to a piston (inside the pump) TDC and a DTI Gauge...
also instructions on how to adjust the injectors, they are servicable !

Now....

If the pump is not perfectly timed up its like a car with the dizzy out a bit but instead of pinking you get smoke ! and just like a dizzy on a petrol a little bit out gives a little smoke more so under load.
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Mark

chrisfoster1971 · Posted: Fri Nov 16, 2007 22:52 Post subject:

I will have to dig out the russian manual, I take it you mean the ones posted on the russian site for the 4M40 engine etc. It does make sense what you are saying I will have to have a word with Scotty and see if he has a DTI and have a go at it, as with the consumption at 18mpg I will only be able to use it now and again....which is a waste when it is such good fun.

BTW I had got really low PSI in the tyres but have now got 40psi in all tyre now.....
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100% BIO DIESEL ! Well not quite at the moment

My Delica Album