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Author Topic: My tractor is getting lazy at firing help needed  (Read 6487 times)

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Shark1e

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My tractor is getting lazy at firing help needed
« on: 10 September 2011, 17:58:43 »
Hi all,

Well my tractor is getting worse at starting, glow timer light complete waste of time,
I have to wait until the ignition lights go brighter or i hear the relay clunck off.
replaced all 4 plugs with bosch ones nearly two years ago when i had it, suspecting they were going down. but whilst it did barely improve, it was still not right, even during the hottest part of our summer i had to wait until fully nuclear melt down  ;D i have noticed that even if i start the engine after say coming back out from the shop etc it still needs some time to charge etc.
yesterday it had to wind over some time then turn ignition off and let it fully heat before it would start firing.
first thing in the morning and fully heated via relay clunck, and she will fire less than half turn or so it feels etc.
air / fuel filters changed regulary and can't see any leaks anywhere not even from return pipes.

So looking for some expert advice on this as where to start first.

thanks in advance

Rob

« Last Edit: 10 September 2011, 18:00:10 by shark1e »
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2.5 cdtd omega 1999 manual estate Chipped and poorly at the moment -  is there a doctor in the house

Omegatoy

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Re: My tractor is getting lazy at firing help needed
« Reply #1 on: 10 September 2011, 19:26:54 »
sounds like intank pump is blocked/failed? have you checked it?
failing that fuel heater loose on top iof the filter can also cause drainback problems, test the glow plugs from the ecu box just to make sure they havent gone down, but if it didnt cure the poor starting then when you replaced them i would be looking at other problems such as fuel draining back overnight as suggested :y
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Shark1e

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Re: My tractor is getting lazy at firing help needed
« Reply #2 on: 10 September 2011, 19:53:21 »
cheers mate,

drainback was my first thought but unsure where to start or where to start.

only thing on that thought is once it fires if been winding over, it kicks out smoke for a few seconds like an old battleship going in for the kill lol so says to me that the diesel already flowing but not getting heat to fire? wonder if a heater wire is failing really weird, but more still towards drainback!
is there a one way valve to stop drainback?

you mention heater on the filter? can you explain this one better

ta rob
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2.5 cdtd omega 1999 manual estate Chipped and poorly at the moment -  is there a doctor in the house

Omegatoy

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Re: My tractor is getting lazy at firing help needed
« Reply #3 on: 10 September 2011, 20:55:37 »
ok main places i have found drainback happening are ,

1, fuel heater loose, this is easily loosened when changing fuel filter!!its mounted just above the filter on the same screw thread,IT ACTUALLY looks like part of the mounting bracket!!  just remove filter and tighten then replace filter, also
has a few wires going to it make sure these are not broke while there,
2,obvious but leak off pipes especially the hidden one that goes back to the i.p. end of this often splits owing to heat and vibration, pain to change as you are working almost blind with inlet on but doable,

3, main fuel lines change from metal to flexible via crimped joints, these i have found leaking twice!! again due to age and vibration gradually working them loose enough to allow air in,  i only heard it hissing when the engine was switched off and started to cool, (was doing another job at the time i heard it)
the other one had a damp look around the joint but i dint hear any hissing as i was specifically looking at this joint as a cause to difficult starting!!

good luck finding the cause buddy
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Shark1e

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Re: My tractor is getting lazy at firing help needed
« Reply #4 on: 10 September 2011, 21:22:25 »
thanks mate, away till tomorz in mrs hot rod (ford KA) lol

changed the fuel filter the last week of june and if i'm honest has got worse since then urrrrrrmmmm :-?

what do you mean by returns to i.p?

thanks rob
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hoofing it

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Re: My tractor is getting lazy at firing help needed
« Reply #5 on: 10 September 2011, 21:33:09 »
Quote
Hi all,

Well my tractor is getting worse at starting, glow timer light complete waste of time,
I have to wait until the ignition lights go brighter or i hear the relay clunck off.
replaced all 4 plugs with bosch ones nearly two years ago when i had it, suspecting they were going down. but whilst it did barely improve, it was still not right, even during the hottest part of our summer i had to wait until fully nuclear melt down  ;D i have noticed that even if i start the engine after say coming back out from the shop etc it still needs some time to charge etc.
yesterday it had to wind over some time then turn ignition off and let it fully heat before it would start firing.
first thing in the morning and fully heated via relay clunck, and she will fire less than half turn or so it feels etc.
air / fuel filters changed regulary and can't see any leaks anywhere not even from return pipes.

So looking for some expert advice on this as where to start first.

thanks in advance

Rob

Was this a typing error as the tractor 6 glowplugs (2.5td) not 4
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Brikhead

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Re: My tractor is getting lazy at firing help needed
« Reply #6 on: 11 September 2011, 12:15:33 »
Quote
what do you mean by returns to i.p?

Injector pump.
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Seth

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Re: My tractor is getting lazy at firing help needed
« Reply #7 on: 11 September 2011, 14:34:24 »
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Shark1e

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Re: My tractor is getting lazy at firing help needed
« Reply #8 on: 11 September 2011, 18:17:31 »
yes sorry typo should read all 6 changed.
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2.5 cdtd omega 1999 manual estate Chipped and poorly at the moment -  is there a doctor in the house

Shark1e

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Re: My tractor is getting lazy at firing help needed
« Reply #9 on: 11 September 2011, 18:25:50 »
excellent link mate thanks, i can confirm this is worse when around the 20 ltr or less mark, i have noticed it lacks a bit of power sometimes,
hopefully start this job after work monday.

will report back any news

thanks all

rob
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2.5 cdtd omega 1999 manual estate Chipped and poorly at the moment -  is there a doctor in the house

Shark1e

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Re: My tractor is getting lazy at firing help needed
« Reply #10 on: 12 September 2011, 17:31:16 »
ok story so far:

stripped tank fuel pump out today.

strainer on bottom not too bad certainly not like the pictures on the workshop on here.
swirl pot was about same as the pictures.
pump runs both ways when reversed poles
all parts blown out with compressor.
pumped nearly all the remaining diesel out into 25ltr drum.
not too bad on bottom of the tank from what i could see, wiped all around pump / swirlpot area and re-assembled all parts / refilled diesel and fired the old gal up.
still think it is taking too long to start compared to when i had her 2 years ago, but seems to run and tick over smooth.
too early to say if totally cured so hopefully tomorrow will tell more.
so anymore pointers will be gratefully received in the mean time.

cheers to all so far

rob
« Last Edit: 12 September 2011, 17:32:46 by shark1e »
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2.5 cdtd omega 1999 manual estate Chipped and poorly at the moment -  is there a doctor in the house

hoofing it

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Re: My tractor is getting lazy at firing help needed
« Reply #11 on: 12 September 2011, 18:45:04 »
Take it for an Italian tune up ([size=8]Boot the s**t out of it)[/size] if you haven't done this already. :y
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bp_porcaro

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Re: My tractor is getting lazy at firing help needed
« Reply #12 on: 12 September 2011, 20:10:27 »
I fitted one of the "HOT FIX" gadgets to my tractor, and it really helps with starting once warmed up.....

http://www.ebay.co.uk/itm/Hot-Starting-Fix-BMW-Vauxhall-Opel-Omega-Diesel-M51-/370308699137?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item56381e5401

I would recommend fitting this, once you've solved the cold start problem (ie fuel supply pressure etc.)

Cheers, BP
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Shark1e

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Re: My tractor is getting lazy at firing help needed
« Reply #13 on: 12 September 2011, 20:53:28 »
Quote
Take it for an Italian tune up ([size=8]Boot the s**t out of it)[/size] if you haven't done this already. :y

italian tune completed lol seems smoother but did wind over a bit after i stopped to get some go go juice.
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hoofing it

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Re: My tractor is getting lazy at firing help needed
« Reply #14 on: 12 September 2011, 20:55:56 »
Quote
Quote
Take it for an Italian tune up ([size=8]Boot the s**t out of it)[/size] if you haven't done this already. :y

italian tune completed lol seems smoother but did wind over a bit after i stopped to get some go go juice.
That helps get rid of the carbon as for starting when hot sounds like you need the hot fix kit :y
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