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Missing 1fzfe *fixed*

Tech Talk for Cruiser owners.

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Posts: 1768
Joined: Sun Mar 14, 2004 11:51 am
Location: Weipa

Missing 1fzfe *fixed*

Post by crankycruiser »

My 80 has developed a miss while it is underload...


I'm thinking plugs or leads.. havent really looked at it yet just putting my feelers out to c if there is any other probs wid these engines...


Thanks Guys..
Last edited by crankycruiser on Wed Dec 28, 2005 10:01 am, edited 1 time in total.
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Post by dinos4x4 »

yep all i can think of is plugs or leads


sparks plugs dont cost much just try them first
100series 2002 4.5/LPG
GET YA GEAR OFF ROAD
www.4x4web.com.au/dinos4x4
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Post by crankycruiser »

well i jsut ripped all the leads out and checked the resistance of them and they range from 5000 ohms for the shortest up to 14000 for the longest.. sound about right?
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Post by bruiser »

You can not tell for sure by just using an ohm meter and checking resistance.

I had the same fault 3 weeks ago. check resistance and they were fine.

It is under high voltage / stress that it was jumping through the lead/plug tube part to the head.

I determined this by pulling each lead off one at atime and holding the long insulating tube piece accross the head (rotating it) untill I sore an acr jumping out of the side rather then coming out the metal end.

Steve
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Post by dow50r »

Something sounds sus there .... they should all be close to thesame id think...+\- a few thousand maybe.
4.5's get water in the dizzy cap easy aswell as in 3 and 4 plugholes.
Andrew
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Post by RED60 »

Jus looked up manual I have and it says max resistance is 25000 ohms per lead. However I do know that resistance is directly proportional to length of conductor for a given conductor type. ie If a lead 30 cm long and has a resistance of 1000 ohms then a lead of 60 cm should have 2000 ohms. Twice the length = twice the resistance for a given conductor. :cool:
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Post by crankycruiser »

Well cahnged the plugs on the weekend.. didnt fix it..

i think i will do the rotor cap and button next...
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Post by crankycruiser »

Well i thought i should post up on how i fixed this...

becasue the 80's spark plug leads are so damn expensive.. i decided to do the cheaper stuff first..

I replaced the
Plugs.. (didnt fix it)
then i repalced the fuel filter
dizzy cap and rotor button...

Now its all good :D
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