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1.5 sud mis-fire problem????

 
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knight
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PostPosted: Tue Apr 12, 2005 9:05 am    Post subject: 1.5 sud mis-fire problem???? Reply with quote

I have a kit car fitted with a 1.5 twin-carb flat-4 alfa-sud sprint 95bhp engine from a 1985 sud.......as you probably know the carbs are a pair of dual down-draught 36 IDF.......I seem to be having a problem when the engine is warm it develops a mis-fire under acceleration, once above about 2000 rpm the problem seems to fade out, it Idles OK........but cyl number 3 seems to be well down of exhaust temperature, the others measure about 120-150 DegC.......whereas number 3 is only about 60 Degrees.......which leads me to suspect that the miss-fire is possibly on 3........I have just fitted a new set of Champion leads, all well connected and clipped down, the rotor arm and dizzy cap are all in good condition, as is the coil.......

I'm going to pull out the jets tonight to check for blockages and that all jet sizes are the same..........what else would you guys recommend to look for?......is it worth splashing out on a re-build kit for the 36IDF's???

any pointers would be much appreciated
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LDA
Alfa 33


Joined: 28 Nov 2004
Posts: 276
Location: France

PostPosted: Tue Apr 12, 2005 4:39 pm    Post subject: Reply with quote

have a read of this topic, it might help.

L.
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A good workman allways blames his sh*t tools.
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knight
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PostPosted: Wed Apr 13, 2005 8:33 am    Post subject: miss Reply with quote

errrr......sorry but did you forget to post an attachment of something???
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LDA
Alfa 33


Joined: 28 Nov 2004
Posts: 276
Location: France

PostPosted: Wed Apr 13, 2005 11:49 pm    Post subject: Reply with quote

sorry, sorry. must have had something else on my mind. or i posted it in another topic on the wrong forum.. Rolling Eyes

http://www.alfa-pages.co.uk/viewtopic.php?t=1942

there ya go.

L.
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