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weird stuttering when you push the throttle on petrol. 

 

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 Post subject: Re: weird stuttering when you push the throttle on petrol.
Posted: Mon Aug 23, 2010 2:25 pm 
Getting Side Ways
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HMMM... it doesn't appear to be the fuel filter..

Put a shiny brand new Ryco in there and the problem persists...
Don't think the old one was a problem cos I was able to easily blow the fuel out with my mouth so it wasn't blocked or obstructed in any way..

now suspecting my fuel pump or regulator.... will have to hook up a pressure guage before and after the regulator to see what the go is unless I can think of a better way..
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 Post subject: Re: weird stuttering when you push the throttle on petrol.
Posted: Mon Aug 23, 2010 10:58 pm 
Getting Side Ways
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Its been mentioned at least 3 times in this thread. Injectors. They are either clogged or split. I'm so sure of it I bet my left nut.
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 Post subject: Re: weird stuttering when you push the throttle on petrol.
Posted: Tue Aug 24, 2010 1:58 am 
Getting Side Ways
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WA, Australia

Ok, I have a spare el motor that was running great on petrol... will swap injectors and see if it works.
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 Post subject: Re: weird stuttering when you push the throttle on petrol.
Posted: Sat Sep 11, 2010 8:03 pm 
Parts Gopher
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frankieh wrote:
Ok, I have a spare el motor that was running great on petrol... will swap injectors and see if it works.


How did you go mate? The swap out of the injectors help? My NL V8 is doing exactly the same thing you described originally... Fine on LPG, but petrol, mmmm... I have been thinking it's the injectors... if so, is it hard to pull them out? what do you clean them with? did you get need seals and from where?

cheers dude! :)

 

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'98 NL Fairlane Ghia 5.0l

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 Post subject: Re: weird stuttering when you push the throttle on petrol.
Posted: Tue Sep 21, 2010 1:52 am 
Getting Side Ways
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Age: 45

Posts: 3440

Joined: 23rd Dec 2007

Gallery: 32 images

Ride: BA XR6T (mix of BA, BF and FG)

Location: Perth
WA, Australia

BJSV8 wrote:
frankieh wrote:
Ok, I have a spare el motor that was running great on petrol... will swap injectors and see if it works.


How did you go mate? The swap out of the injectors help? My NL V8 is doing exactly the same thing you described originally... Fine on LPG, but petrol, mmmm... I have been thinking it's the injectors... if so, is it hard to pull them out? what do you clean them with? did you get need seals and from where?

cheers dude! :)


I am not keeping this engine much longer as the replacement is all ready, so all I have done is put two tanks of premium with injector cleaner in it.... it is getting better though...

Sorry I can't be much help, but sonic cleaning my injectors on the old motor just isn't worth it, especially since I'm on gas most of the time..
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