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Author Topic: '86 8v K Jet - Won't start  (Read 2470 times)

Offline katana

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'86 8v K Jet - Won't start
« on: 05 October 2013, 20:01 »
Finished the body on my '86 type 19 & cannot get it to start.
Fuel pump was knackered so that has been replaced. Got fuel up to the meter head but thats it.
Nothing at the injector pipes. Definitley fuel problem, sprayed some carb cleaner into manifold (through breather pipe) & it fired 1st touch (obviously very briefly).
Any ideas please, tried a replacement meterhead & still the same.....
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Offline r0bster

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Re: '86 8v K Jet - Won't start
« Reply #1 on: 07 October 2013, 22:49 »
hey sorry i cant help you on this but im having the exact same problem on my 85 golf, iv bin scratching my head for quite awhile on this.
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Offline bodga

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Re: '86 8v K Jet - Won't start
« Reply #2 on: 08 October 2013, 06:49 »
Have a read of this thread.   :http://www.golfgtiforum.co.uk/index.php?topic=211434.msg1960399#msg1960399


Can't remember the exact pressure but bear in mind the injectors need at least 4 bar before they will open and spray fuel, so could still be your main pump faulty under the car.
I would check the needle in the meter head isn't stuck first.
« Last Edit: 08 October 2013, 06:53 by bodga »
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Offline r0bster

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Re: '86 8v K Jet - Won't start
« Reply #3 on: 08 October 2013, 21:56 »
mines got a brand new pumps on it  so i no for a fact its not that.
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Offline katana

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Re: '86 8v K Jet - Won't start
« Reply #4 on: 09 October 2013, 19:24 »
Mine has new pump too
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Offline clipperjay

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Re: '86 8v K Jet - Won't start
« Reply #5 on: 09 October 2013, 20:02 »
START AT COIL THEN LEADS KING LEAD DIZZY CAP ROTA SPARK PLUG ARC AGAINST THE ENGINE CHECK HOW STRONG THE SPARK IS THEN COME BACK.
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Offline katana

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Re: '86 8v K Jet - Won't start
« Reply #6 on: 09 October 2013, 21:08 »
All electrics are good - definitely fuel delivery.
There is nothing at any of the injectors, fuel up to meter head but no further.
As previously stated it will fire up briefly if fuel is squirted into inlet (spray of carb cleaner / syringe of petrol) so everything else is fine.
Does anyone have an exploded view of inside the meterhead (can it be dismantled?)

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Offline clipperjay

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Re: '86 8v K Jet - Won't start
« Reply #7 on: 10 October 2013, 08:57 »
Try looking at the electrical wiring feed loom to the injectors see if voltage is being delivered into the injectors themselves?
The fact the heat from the rear manifold causes brittle looms will impead voltage signal to the injectors to open up.
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Offline katana

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Re: '86 8v K Jet - Won't start
« Reply #8 on: 10 October 2013, 19:16 »
There is no wiring to the injectors (it's a K Jet) - braided line screwed onto injector, fired by fuel pressure from the meter head
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Offline clipperjay

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Re: '86 8v K Jet - Won't start
« Reply #9 on: 10 October 2013, 20:16 »
OoooH its old skool  :grin:
Okay then take off the metering head and take it to a Bosch place for pressure testing, but could be just a vacuum leak somewhere on the engine? Or the injectors are blocked from shizztle.
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