Author Topic: Another 'wont start' thread  (Read 2234 times)

Offline Sam

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Another 'wont start' thread
« on: 15 July 2011, 17:25 »
She has fuel, she has spark and now and then she will go dududududududuudududududuBLAGHdududududududd when you try her but nothing more. Any ideas as I havent been in her for over a month now!  :undecided:


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Offline JC

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Re: Another 'wont start' thread
« Reply #1 on: 15 July 2011, 18:07 »
sounds like your trying to start a turd  :grin:

Offline Sam

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Re: Another 'wont start' thread
« Reply #2 on: 15 July 2011, 18:28 »
sounds like your trying to start a turd  :grin:

 :lipsrsealed:


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Offline weazgti

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Re: Another 'wont start' thread
« Reply #3 on: 15 July 2011, 18:39 »
get the can of easy start on it  :wink:

Offline Sam

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Re: Another 'wont start' thread
« Reply #4 on: 18 July 2011, 17:41 »
So no ideas anyone?  :embarassed:


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Offline Sam

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Re: Another 'wont start' thread
« Reply #5 on: 18 July 2011, 18:20 »
Engine turns but won't start

1)No fuel pressure;
Test the fuel pump and pre-pump and do a fuel pressure and volume test.

NEW FUEL PUMP FITTED

2)Jammed and/or sticking airflow sensor;
Remove the boot that goes to the intake and loosen the center line on fuel distributor.This will relieve
the control pressure.Press down on the center bolt of
the plate and you should feel no resistance or binding.Also check that the rest height and centering are correct.

DONE, RESISTANCE IS AS LITTLE AS EXPECTED

3)Auxillary valve is sticking;

NEW ISV FITTED

4)Defective cold start injector;
If the injector does not function,the air-fuel ratio will be lean,preventing easy start up.

INJECTOR FUNCTIONING

5)Shorted or defective thermo time switch;
The cold start injector will not work if the thermo
time switch is defective.Check this in the event that your cold start injector does not function before replacing.

6)Control plunger sticking;
Remove the fuel distributor from the airflow sensor and check to see if it moves freely.

7)Restricted injectors;
For this to be the cause,they would have to be severely restricted,which is why I listed it last.Do
an injector flow test and ensure that the delivery is
near equal.

FUEL IS GETTING THROUGH NO PROBLEM


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Offline Sam

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Re: Another 'wont start' thread
« Reply #6 on: 18 July 2011, 18:33 »
So slight update, (my computer is in my garage hence a walkthrough of what i am doing)  :grin: but, when I relieved the control pressure and then connected her all back up she almost started, any ideas?


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Offline Sam

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Re: Another 'wont start' thread
« Reply #7 on: 19 July 2011, 18:00 »
Still no one with any ideas?


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Offline mk2bal

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Re: Another 'wont start' thread
« Reply #8 on: 19 July 2011, 18:51 »
I've skim read what you've said.. Does fuel come out of each injector evenly? Does each plug have a healthy spark? Is compression similar on all cyl's (and high enough)? Its a turbo isn't it? If you have all of the above I'd be looking at anything else you've touched in the process of rebuilding it.. Everytime I have a prob I suspect the kjet, but it never is, its always something else, so I'd imagine if all you've done is remove it, then reinstate it I'd imagine nothings broken without being touched, unless you're convinced its a fuel issue as per pressure relief valve... Its hard to say without seeing it myself, and going through the basics. Timing is the main problem I get, when the cranks I've had have failed, and then a million different symtoms come along (including starting) that all stem back to the belt being 2-3 teeth out!

Offline Sam

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Re: Another 'wont start' thread
« Reply #9 on: 19 July 2011, 19:00 »
Well it was all working fine, until my starter motor fell out then she failed to start after a few 'bodged' starts.


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