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 Post subject: Misses when hot
PostPosted: Sat Feb 07, 2009 8:04 am 
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1360cc
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After much children delivery to multiple sporting events throughout Sydney - at high speed as they were late :roll: , the Moke developed a miss at high revs when hot.

Any suggestions?


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 Post subject:
PostPosted: Sat Feb 07, 2009 8:09 am 
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slow down? Sorry, that's not very helpful but I couldn't resist. I had a similar problem that turned out to be a blokage in the SU's and I discovered there was no filter. It only seemed to happen in similar conditions to yours. Just a possibility to investigate.

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Last edited by Flute on Sat Feb 07, 2009 8:24 am, edited 2 times in total.

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 Post subject:
PostPosted: Sat Feb 07, 2009 8:16 am 
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Electric or mechanical fuel pump ? I've had a mechanical pump start to fail on stinking hot days and lead to slight fuel starvation , was just enough to cough occasionally . There's a lot of heat trapped at the back of the motor on hot days ...

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 Post subject:
PostPosted: Sat Feb 07, 2009 8:33 am 
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sports850 wrote:
Electric or mechanical fuel pump ? I've had a mechanical pump start to fail on stinking hot days and lead to slight fuel starvation , was just enough to cough occasionally . There's a lot of heat trapped at the back of the motor on hot days ...


electric fuel pump


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 Post subject:
PostPosted: Sat Feb 07, 2009 9:43 am 
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I had a similar problem the other day with my chain saw. I worked out that it was old fuel. Put some fresh stuff in and it was fine.


I know this dont help but it just made me think of it.

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 Post subject:
PostPosted: Sat Feb 07, 2009 9:50 am 
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nup - new fuel

I just did the last run for the day - so I will rest it try with fresh plugs

Again it missed with load at lhigh revs - no miss on light load


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 Post subject:
PostPosted: Sat Feb 07, 2009 9:53 am 
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Does it run on when you stop after it's been missing or is it behaving itself otherwise , not running hot at all or anything else ?

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 Post subject:
PostPosted: Sat Feb 07, 2009 10:01 am 
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sports850 wrote:
Does it run on when you stop after it's been missing or is it behaving itself otherwise , not running hot at all or anything else ?


nup doesnt run on - generaly behaves itself - it runs a little hot but that is due to hills around here

The poor little Moke had been running up and down these all morning loaded to the rafters


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 Post subject:
PostPosted: Sat Feb 07, 2009 10:05 am 
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Damn, I thought this thread was about your missus when she's hot. :( :lol:

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 Post subject:
PostPosted: Sat Feb 07, 2009 10:09 am 
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speedy wrote:
Damn, I thought this thread was about your missus when she's hot. :( :lol:


I thought that you would think that when I posted it. I see the way you look at her :P


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 Post subject:
PostPosted: Sat Feb 07, 2009 10:19 am 
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any oil leaks around the electrics or plug leads, oil starts to run when it gets hot and can short things out.

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 Post subject:
PostPosted: Sat Feb 07, 2009 10:21 am 
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nup - but good enough idea to get off my butt and check


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 Post subject:
PostPosted: Sat Feb 07, 2009 12:10 pm 
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blokeinamoke wrote:
speedy wrote:
Damn, I thought this thread was about your missus when she's hot. :( :lol:


I thought that you would think that when I posted it. I see the way you look at her :P


You've confused with me with Tiny. :cry: :lol:

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 Post subject:
PostPosted: Sat Feb 07, 2009 3:09 pm 
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There's a guy in the Sprint rounds here at Mallala with the same issue in his Cooper S faker. Been hunting it for months and can't find it. If he lets it cool between sessions - its fine. But as the laps progress, the misfire gets worse and worse..

Let us know if you do figure it out!

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 Post subject:
PostPosted: Sat Feb 07, 2009 3:26 pm 
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Check what coil is on it now, if it's a resistor coil running without one they get hot then do just that.
Try another coil, 12V. :wink:

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