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random cutting out
https://auszookers.com/forum/viewtopic.php?f=5&t=18535		 Page 1 of 2
Author:  MrRocky [ Tue Jan 25, 2011 8:25 am ]
Post subject:  random cutting out
have a cutting out problem with my blue zook that has plagued it for its whole life just about so i'am making it my mission to rectify the problem.
have tried numerous carb swaps and am currently running a fully rebuilt webber (1 week old) throughout all the carb swaps the problem has remained the same. Thought maybe the fuel tank pressurizing but it still does it with petrol cap on and off. Now i'm thinking maybe the fuel pump or possibly a spark related issue??? I have checked all the earths and the dizzy out, all seem in good nick as does everything going to the coil.
some days are better than others but as soon as i pull up thinking the probs gone away it starts again. The car uses a bit of oil but the plugs arn't too bad considering.

now, ideas anyone ?
Author:  inbits [ Tue Jan 25, 2011 8:48 am ]
Post subject:  Re: random cutting out
Is the fuel tank clean? maybe some shit in it blocking it up every mow and then
Author:  alien [ Tue Jan 25, 2011 8:54 am ]
Post subject:  Re: random cutting out
what do you have to do to make it cut out??? is it after gearing down to a stop? is it happening while driving?
Author:  sando [ Tue Jan 25, 2011 9:05 am ]
Post subject:  Re: random cutting out
Mate we need abit more info, does it do it under load? Why have you been swapping carbs? When you say cutting out does it actually die and you have to restart it or does it have a flat spot if so how much (big little etc) could be something as simple as a fuel supply as in filter or maybe even plugs and leads?
Author:  MrRocky [ Tue Jan 25, 2011 9:52 am ]
Post subject:  Re: random cutting out
ok, these occurrences can be completely random, such as it being fine on the way to work crap on the way home, or fine for the first 20 mins of driving then crap. you get the idea, there is nothing i can do to induce the problem whilst the car is running fine and no one thing that sets it of.

* driving along foot on the clutch = dead
* stop at lights = dead
* at lights for an extended period idling fine then = dead

the reason for the carby swaps is to eliminate that from the equation, all the carbys have come of cars running fine and the webber is new.
Author:  alien [ Tue Jan 25, 2011 10:05 am ]
Post subject:  Re: random cutting out
does it have an immobiliser?
Author:  MrRocky [ Tue Jan 25, 2011 10:07 am ]
Post subject:  Re: random cutting out
yeah it does - but surley not 8O
hmmm pull it out you reckon
Author:  steak_knife [ Tue Jan 25, 2011 11:02 am ]
Post subject:  Re: random cutting out
MrRocky wrote:
yeah it does - but surley not 8O
hmmm pull it out you reckon


Yes, yes it will.......
Author:  89_tintop [ Tue Jan 25, 2011 11:12 am ]
Post subject:  Re: random cutting out
How does it start back up? easily. . Foot flat to the floor... Coughing an sputtering..

Is it a sudden cut out.. Or does it die down in revs
Author:  MrRocky [ Tue Jan 25, 2011 11:24 am ]
Post subject:  Re: random cutting out
a half pump on the gas and she fires up but sometimes it still wants to die, there is no spluttering from over fueling.
Author:  Teracis [ Tue Jan 25, 2011 6:40 pm ]
Post subject:  Re: random cutting out
Disable the immobiliser first, they can stuff up and then you'd get what is happening here. Provided you've hooked up the immobiliser to stop the thing from running, if it's only in the start circuit then it won't be the problem.
Author:  MrRocky [ Tue Jan 25, 2011 10:11 pm ]
Post subject:  Re: random cutting out
immobiliser removed - problem is still present, iam deciding if its worth pulling out the tank and givng it a good clean. I cant really see it being the fuel pump as you would think it would be a repeatable issue not completely random. maybe something is just floating around in the tank and blocking it up occasionally. After some tests it seems to happen more on a low tank and while braking
Author:  steak_knife [ Tue Jan 25, 2011 10:20 pm ]
Post subject:  Re: random cutting out
grab the wire's to the dizzy while running & give em a lil twist, I have seen broken wire's in that lil harness...
Author:  MrRocky [ Tue Jan 25, 2011 11:09 pm ]
Post subject:  Re: random cutting out
hmmm twisting harness didnt work, commencing fuel tank removal and filter change now :?
Author:  MrRocky [ Wed Jan 26, 2011 12:52 am ]
Post subject:  Re: random cutting out
fuel tank seemed pretty clean and fuel filter wasnt too hard to blow thru. letting tank dry in the sun at the moment, snapped one of those little brazed vent outlet pipes so i had to fill tank with water and weld it back on. rinsed tank with fuel a few times will re-install when dry.
Author:  89_tintop [ Wed Jan 26, 2011 12:55 am ]
Post subject:  Re: random cutting out
to me it sounds like an electrical fault..

have you tried another dizzy?
Author:  alien [ Wed Jan 26, 2011 12:57 am ]
Post subject:  Re: random cutting out
hey mick - can you take the leads off your LWB and try them on the other one? i remember years ago i had faulty leads which caused all sorts of weirdness - only cut out now and then, but also idled all over the place.
Author:  MrRocky [ Wed Jan 26, 2011 12:58 am ]
Post subject:  Re: random cutting out
the car has had a different dizzy fitted at some stage, i will swap a few things around and see if it will make a difference, after i put the tank back in :x
LWB is baleno so no deal on the leads but i will swap them for a spare set i have in the shed
Author:  MrRocky [ Wed Jan 26, 2011 1:46 am ]
Post subject:  Re: random cutting out
fuel tank and new filter in, still cuts out.
different set of leads still cuts out
will swap the fuel pump this arvo - fingers crossed thats it :roll:
Author:  alien [ Wed Jan 26, 2011 2:11 am ]
Post subject:  Re: random cutting out
its been cursed, most probably by a gypsy (lol, get it?)
Author:  Built4thrashing [ Wed Jan 26, 2011 4:45 am ]
Post subject:  Re: random cutting out
do you still have the earth off the back of the dizzy connected to the firewall? is the motor earthed? Check the connection of the fuel cutout on the carby.

To me it sounds like you have a faulty earth somewhere or a busted wire in the loom. ......hmmm check your fuses are not coroded.
Author:  MrRocky [ Wed Jan 26, 2011 8:31 am ]
Post subject:  Re: random cutting out
ok new plugs - no deal
new fuel pump - no deal
will check fuses and earths again

i wonder could the cutting out be caused by my smokey motor.
If i slow down gradually around a corner in neutral it doesnt cut out but if i brake or gear down and brake to a stop then it cuts out. Its almost like using the brake pedal causes it. I have checked the booster and connections they seem ok ? :cry:
Author:  zooky08 [ Wed Jan 26, 2011 8:48 am ]
Post subject:  Re: random cutting out
coil
Author:  MrRocky [ Wed Jan 26, 2011 9:25 am ]
Post subject:  Re: random cutting out
hmmm possible loose earth to block, will replace suspect battery terminals and tighten tomoro as well as swapping coil. Have spare dizzy to try after that if it doesnt work.

SWB's are CURSED
Author:  MrRocky [ Thu Jan 27, 2011 9:25 am ]
Post subject:  Re: random cutting out
replaced fuses, battery connections, tightened engine earth, replaced coil and checked connections still cuts out when brake is applied to stop rolling to a stop is no problem ???
I'm thinking motor is rooted, blows lots of smoke but has heaps of power gets to 110 in 3rd no probs now with the webber, i dont know maybe she's just a bit sic.
Author:  Ben_Sierra [ Thu Jan 27, 2011 10:13 am ]
Post subject:  Re: random cutting out
I woulda thought if its happening when you brake then its gotta be booster related... :?
Author:  MrRocky [ Thu Jan 27, 2011 11:44 am ]
Post subject:  Re: random cutting out
when i'am parked and pump the pedal the rpm goes up to 1500rpm
ive checked for vacuum leaks and what not, but all seems good ?
Author:  atari4x4 [ Thu Jan 27, 2011 11:49 am ]
Post subject:  Re: random cutting out
is the 1 way valve for the vacuum line fitted the right way/working?
Author:  MrRocky [ Thu Jan 27, 2011 11:57 am ]
Post subject:  Re: random cutting out
where is that on the booster side or the manifold side, the car has done a fair bit of mud work in its day so theres always the possibility of it being stuffed.
Author:  atari4x4 [ Thu Jan 27, 2011 11:59 am ]
Post subject:  Re: random cutting out
NFI on a sierra, should be on the booster end?? :? :oops:
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