Mitsubishi Delica Owners Club UK™

chiefie · Posted: Sun Jun 20, 2004 17:04 Post subject: 2.5 fuel pump overhaul

does anyone know where i may be able to get an overhaul kit for a 2.5 fuel pump, i could send it away to be done but would rather do it myself and have my Deli back on the road sooner
cheers
rik

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HSTDoctor · Joined: 06 Jun 2004 Posts: 105 Location: Bristol

tricky · Joined: 11 Mar 2004 Posts: 30 Location: Yetminster

Hi Rik,

don't bother messing with the diesel pump - it's very complicated and requires special service tools not to mention specialist knowledge.

Much better off taking it to a Japanese diesel injection specialist. Or even better a commercial diesel injection specialist - as they tend to be much cheaper.
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1991 L300 Delica Super Exceed

chiefie · Posted: Wed Jun 30, 2004 18:38 Post subject:

nobody knows then Sad

140 quid and a week without transport is not my idea of fun. having the facilities to do it i will have a go at fixing anything

Hawk · Posted: Thu Jul 01, 2004 9:46 Post subject:

I replaced thottle o ring and top seal, got a complete set of seals from local Lucas outet - £11.00 for set.

But I could do this without altering any of the settings, as tricky and hysterdoctor say you need to know what you are doing to completly overhaul pump.

Check pocuk club site for more info, do search on feul pump.

For details of the repair I did see:
http://www.pocuk.com/phpBB2/viewtopic.php?t=11498

Think twice before doing overhaul and good luck.

Steve
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1993 2.5 Super Exceed
"If at first you don't succeed - use a bigger hammer!"

wemfish · Joined: 11 Jun 2004 Posts: 276 Location: North Shropshire.

Hi All,
I also have a problem with my 2.5 td injector pump, It seems to be giving to much fuel. the fault happened suddenly so I presume a seal has failed. the Delica runs fine but is making to much smoke and has little chance of passing the MOT like this.
Does anyone know if there is a site or can anyone email me a scan of there workshop manual of how to check and service the fuel injector pump on a 1989 Mitsubishi 2.5 TD (Mitsubishi Delica - Should be the same as a L300, L200, Shogun or Pajero)
TIA,

HSTDoctor · Joined: 06 Jun 2004 Posts: 105 Location: Bristol

chiefie · Posted: Wed Jul 07, 2004 18:15 Post subject:

first off i would not recomend testing injectors like this,have it done properly and don't run the risk of serious injury. anyway thats enough of my health and safety lecture for today :? , check your bottom pulley! run the engine and see if it runs true, if not take off your fan belts and see if you can twist or wobble it, i had a 2.5 shogun in today blowing some severe black smoke with a knacked crank cos the woodruf keyway in the crank had worn into a v groove poss due to a loose pulley bolt and vibration of engine. anyway i am going on a bit and it is a deer repair so i hope it is something less serious Wink

HSTDoctor · Joined: 06 Jun 2004 Posts: 105 Location: Bristol

chiefie · Posted: Wed Jul 07, 2004 20:44 Post subject:

Yep that's the one.

wemfish · Joined: 11 Jun 2004 Posts: 276 Location: North Shropshire.

The smoke is black. Sometimes great clouds of it but other times none at all, usually there is enough smoke to notice it in the down view mirror on the back.
The problem started with a "bang" on the M6, The AA man could find nothing wrong and suggested I drove home slowly, which I did without trouble. The local garages could find nothing wrong and since my last trip to a Mitsubishi dealer cost me £1400 I don’t fancy that again! On some occasions there is nothing wrong so the fault is not likely to be something mechanical broken. I drive it around every day and the engine runs fine except for the smoke and the rattling noise that all diesels make when cold does not go away. The local garages who cannot find what’s wrong have suggested it might be the fuel pump. I have been quoted £300 + labour and vat to get it serviced. I replaced the bottom pulley a year ago as the rubber had broken up so it is not likely to be that but I have not checked it yet! I had a look around myself and made sure all the connections, bolts and hoses were okay and it seams to have improved slightly.

HSTDoctor · Joined: 06 Jun 2004 Posts: 105 Location: Bristol

wemfish · Joined: 11 Jun 2004 Posts: 276 Location: North Shropshire.

the £300 is just to send the pump away to get it serviced the removal and re-fitting is extra

HSTDoctor · Joined: 06 Jun 2004 Posts: 105 Location: Bristol

wemfish · Joined: 11 Jun 2004 Posts: 276 Location: North Shropshire.

There was a pajero diesel pump on Ebay last week, I spotted it at the last second, too late to bid on it and it went for £20.00 !! Gutted !!

wemfish · Joined: 11 Jun 2004 Posts: 276 Location: North Shropshire.

1. Is the airfilter and intake clear? Is the turbo working?
2. Are the injectors working properly,
3. Check the pump securing bolts,

Chris

Thankyou Chris for you help I have today started to have a look to see if I can find the problem based on your suggestions.

1. Air filter okay, pipe to turbo from covered in oil on the inside
2. not checked yet.
3. turbo spins okay but is covered in oil inside and out.
is this normal?

Thanks,

Stuart.
_________________
Take your time to get it right.
Hawk Lake, home to some nice Carp.
Delica owner since June 2000.

HSTDoctor · Joined: 06 Jun 2004 Posts: 105 Location: Bristol

okay Stuart, I'll try to help further, but it probably gets difficult from here on in, I have worked on diesel engines for the last 15 years, but have no 'hands on' experience of the Mitsubishi engines. So any advice / info is based on general diesel technology, rather than specific knowledge.

I'll have to look tomorrow (Monday) evening at my Delica and see how the engine breather system works, this, if it feeds back into the air intake system - as do most modern engines - could be the cause of the oily deposits. Two reasons for this, one simple & cheap, one expensive :-(

First and hopefully most likely cause, is blocked / oiled up breather valve, this can cause excessive draw of oil mist from engine into intake, second and most expensive can be excessive crankcase pressure (worn rings / bores) forcing the oil mist into the breather system.

I'll have a good look at the Delica system tomorrow evening and try to narrow down the likely cause.

Chris

wemfish · Joined: 11 Jun 2004 Posts: 276 Location: North Shropshire.

Thankyou Chris,
Do you have broadband, if so may I e-mail you some pictures of the turbo and engine. if you are on dial up it would take ages as the files are large and to reduce them would loose the detail.
_________________
Take your time to get it right.
Hawk Lake, home to some nice Carp.
Delica owner since June 2000.

HSTDoctor · Joined: 06 Jun 2004 Posts: 105 Location: Bristol

wemfish · Joined: 11 Jun 2004 Posts: 276 Location: North Shropshire.

click on my www to see some pictures of the turbo.
_________________
Take your time to get it right.
Hawk Lake, home to some nice Carp.
Delica owner since June 2000.