Outer Limits 4x4 Board

Hey everyone, I think I have bought a F@#k Mk. I have renewed every oil and fluid and filter. On the way to work today I was sitting on 90kph and the car started to surge or slightly jolt and decreased in speed. I put the foot down more but it just bogged down. I pushed the clutch in to give it a rev and it died. The filter light came on but I just changed the fuel filter. I got it to start after a few minutes and it continued to do the same thing all the way home. Damn. Any ideas what the hell it could be. Thanks

Have you drained fuel tank and flushed it?

No mate I haven't. Does the tank have a drain plug. Its kinda hard to see cause my spare is under there. Do you just flush it with diesel? Thanks for the info.

Did you just get a load of fuel before the issue started? Sounds like a bad fuel issue or an air leak in the fuel system.

RAY185 wrote:Did you just get a load of fuel before the issue started? Sounds like a bad fuel issue or an air leak in the fuel system.

x 3333333

I put 20 bucks in. Bad fuel wouldn't stop it from running tho, would it? I bled the fuel sytem until no air more air came out. The fuel was from BP aswell not a shity old servo. I will try to drain it tomorrow, thanks for the advise fellas.

Bad fuel sure can do that mate. drop the bottom of the tank, if the tank has sh,t in it replace the filter again see how u go

check too see if there is a inline fuel filter near the fuel tank.

Will do guys. Cheers.

Could it be the fuel pump on its way out.

the symtoms your describing is fuel starvation. my lux is a shocker for it if you let the LR tank get too low (less than 20L left) and are in really steep hills. The fuel runs to the front of the tank away from the pickup and she runs dry.

Check your filter again- go to supercrap and get a really cheap clear inline filter, and install it between the filter and the pump. If your sucking air, you'll see it in that filter. if its not air, put some diesel in a coke bottle and draw it into the pump through the inline filter, see if that fixes it. if it does, you have a blockage. Either the main filter, or the pickup filter is full of crud.

if it doesnt improve, you dont have air in it, you have a sick injection pump.

http://www.news.com.au/heraldsun/story/ ... 61,00.html


Contaminate fuel suspected to have damaged cars across

August 07, 2009 12:00am
THOUSANDS of Victorians' cars have seized this week after a mystery fuel contamination.

The RACV and the Victorian Automobile Chamber of Commerce have reported cars needing urgent repairs for severely damaged engines, possibly as a result of contaminated fuel.

The source and type of contamination is still not known, but mechanics have reported most samples coming from small, unbranded fuel outlets.

RACV chief vehicle mechanic Michael Case urged all motorists to keep watch for signs of contaminated fuel when filling up at petrol stations.


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Have you been affected or suspect you've bought contaminated fuel? Email us
Or phone our news desk on (03) 9292 1226

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Vehicles that were running roughly, misfiring or were hard to start could be suffering from the fuel contamination, he said.

Motorists should look for a film of white powder on the exhaust pipe, an illuminated engine check light, a sickly sweet smell from the fuel and exhaust pipe, as well as white powder on spark plugs.

"If your vehicle shows any of these signs, stop driving immediately as continuing to drive the vehicle may result in extensive engine damage," Mr Case said.

Drivers have been advised to tow damaged cars to a qualified mechanic and ask for a fuel sample to be taken and analysed. Petrol stations where fuel was bought should also be contacted.

Melbourne fuel expert Ken Gracey, owner of Dyan Fuels, said he had never seen anything like the contaminated samples he had tested.

"Most petrol is a gold colour, this stuff is crystal clear," Mr Gracey said.

"Also, when I pulled the spark plugs out they looked like they had been dipped in talcum powder."

Mr Gracey had received calls from customers from most northern suburbs and some from the southeast.

Mobil service station spokesman Alan Bailey said it had received only a small number of calls.

"Based on the checks we have done to date we have no reason to suspect there is a widespread problem at Mobil," Mr Bailey said.

The VACC is believed to have met several Victorian mechanics on Wednesday night to discuss the issue.

My old 60 used to do this when the water separator had clogged up with shit and water.

If you have one of these, id check it first.

x2 on the water separator. These get overlook when servicing. I think you need to drain it every 12 months so the rig doesn't
konk out at an inconvenient time. You just unbolt the bottom bolt let it drain and then prime the fuel pump.

Hope it helps.

Is that the drain plug on the bottom of the fuel filter? Where is it if it isnt.

Sorry mate I'm not 100% certain where your water/fuel separator would be. But it should have one. I own a landcruiser
so Patrols are foreign to me. Have you got a work shop manual? Should be in there.

I'll have a look mate. I know that on the fuel filter there is a drain with a sensor on it that tells me when there is water in the filter. Thats prob the water/fuel seperator. Thanks for the help.

maybe some crap came through when you changed the fuel filter? MKs have a gauze filter in the banjo bolt on the pump inlet, have you checked that?

festy wrote:maybe some crap came through when you changed the fuel filter? MKs have a gauze filter in the banjo bolt on the pump inlet, have you checked that?

X2 there, check the gauze, and yes if the fuel filter assembly has a sensor, it is a water separator.
When you change filters small parts of rubber seal can get thru, and or parts of the old filter.

On the 60's they are halfway between the tank and the engine bay along the chassis rail, not sure on the Nissan.

On the dodgey fuel, talking about it on abc radio just now

"Most petrol is a gold colour, this stuff is crystal clear," Mr Gracey said. - what the fuk???
Then again, most people cant see whats going in anymore.

Got rid of that undercar spare wheel holder and got halfway threw removing the tank and broke 2 of my ratchets. Some idiot put locktight on all of the bolts. Got the shits with it now but tomorrow I'll get a new ratchet and check the guaze. Is the guaze filter on the inlet pump near the fuel filter or where the primer is. Thanks again for the help use saved me some hard earned cash.

near the primer, it's the banjo bolt on the injection pump itself

Removing the tank? Doesnt it have a drain bung on it? Might not even be dud fuel. Could just be an air leak somewhere. I would be cracking an injector to see if you get air bubbles when running. If you do and it goes away then you just had air in the system. If it continues to leak air then you have an air leak somewhere. If no air bubbles then look at dud fuel. Just me but I would be doing that before dropping the tank.

RAY185 wrote:Removing the tank? Doesnt it have a drain bung on it? Might not even be dud fuel. Could just be an air leak somewhere. I would be cracking an injector to see if you get air bubbles when running. If you do and it goes away then you just had air in the system. If it continues to leak air then you have an air leak somewhere. If no air bubbles then look at dud fuel. Just me but I would be doing that before dropping the tank.

i have tried to clean a tank via removing the bung and it did SFA. Most case's the car had been sifened so many times that there was loads of plastic running around the tank. Only way i cleaned the tank was to remove it, and flush it with water (i would not use water again). once i cleaned it out i stuck it inside next to the wood heater for a few days, and then I chucked it back in. It was as right as rain after that.

Poor fuel will stop a car, for example, we were driving the west coast of tas and we filled up at BP.... Once we were in a pretty far out location, a efi patrol started to run rough, and ended up stopping. We played with the motor, and in the end, we dropped some of the fuel, and it looked like shit. So we drained it, and used a jerry can of petrol off the back of the landrover and it ran good again, however we had to keep replacing fuel filters, before it would clog up again. He got a refund on the petrol, and we never stopped there again..

Ironic though, we chucked the petrol in a carbie 22r hilux and it ran fine,,,,,,,,

Well I checked the guaze thingy with no signs of shit in there. Re bled the fuel system and check for air leaks by cracking an injector and everything seems ok. So I drained the diesel and next step is to remove and flush the tank. Fingers still crossed for bad fuel.

make sure you check the pick up in the tank. My Mk had exactly the same thing, turned out to be some carpet strands in the pickup. We used to pull up blow back through the lines and might be okay for a day or 5km. full or empty made no difference.

If it goes well when its going it'll be sweet. cant kill em

pongo wrote:make sure you check the pick up in the tank. My Mk had exactly the same thing, turned out to be some carpet strands in the pickup. We used to pull up blow back through the lines and might be okay for a day or 5km. full or empty made no difference.

If it goes well when its going it'll be sweet. cant kill em

x2. I removed those pickup filters from both tanks in my 80. Having suffered from dirty diesel on far too many occasions. It's easier to let the main filter pick it up.

pongo wrote:make sure you check the pick up in the tank. My Mk had exactly the same thing, turned out to be some carpet strands in the pickup. We used to pull up blow back through the lines and might be okay for a day or 5km. full or empty made no difference.

If it goes well when its going it'll be sweet. cant kill em

there have been people who have had the pick up break off inside the tank and not be able to get to the fuel..

I cant get to it till sunday, but cant wait to have it all sorted. A mate of mine rekons the injector pumps get lazy round the 300k mark. I hope he's not right. Thanks again for all the info.