Intermitant engine idle fault

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Intermitant engine idle fault

Postby iety2004 » 27 Apr 2005, 23:17

Since i've fitted my K&N to my Kadett, i've realised that the engine take twice as long to start and it sounds like it struggling to turn over,

popped down to the local tescos and on the way back, everytime the engine was left to idle on its own it cut out (this was after about 10 mins of driving)

traffic lights, turning into a junction etc the engine would die and i would have to restart.

Drove the car back up a couple of big hills, (swansea very hilly) and when i parked it outside my house, it idle ok again and didn't cut out,

is this cos it running too lean? i did mean to cheak this last weekend at my old works but i forgot,

or

Vacuum or air leak? like i said it fixed itself so i don't know
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Postby shuvit-tim » 28 Apr 2005, 00:19

my nova does this periodically, and my weber is running way to rich rather than lean.

some cars just dont like K&Ns

Also have you fitted that new exhaust? If so you might not have enough back pressure?

you'll find it wont have fixed itself but will probably recur particularly when the engine is cold
when all else fails, rivets, cable ties and bodge tape will see you through

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Postby iety2004 » 28 Apr 2005, 02:10

yeah i fitted a ashley system,

yeah, i'll emissions check it just incase tho,

it cuts out some times since i fitted the K&n when it cold

before you could start it without any choke
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Postby Doive » 28 Apr 2005, 02:19

Check all your breathers etc for leaks, I assume when you stuck on the K&N you blocked all the breathers. Oh hang on, the Kadett has the downdraught carb so the airbox is different - *thinks* - this may be a stab in the dark but check the pipe that joins the filter to the carb neck to ensure it cannot collapse. I have heard a case like this before where a bloke replaced most of his engine to cure a poor idle and cutting out problem - turned out that the air intake pipe was collapsing and starving the engine of air. Just a thought, it really could be one hundred and one different things.
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Postby Neilyman » 28 Apr 2005, 08:56

shuvit-tim wrote: If so you might not have enough back pressure?


Is not a 2 stroke is it?
Iety`s got a Trabant engine in his Kadett :wink:
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Postby Herbie_Flowers » 28 Apr 2005, 09:18

or a golf cart, when you take your foot off those they cut out too.
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Postby shuvit-tim » 28 Apr 2005, 10:04

yeah mine also now cuts out cold.

When it starts to misfire spontaneously whilst driving for no apparent reason let me know :lol:

then we'll know we have the same problem!
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Postby Doive » 28 Apr 2005, 23:42

A random misfire when driving sounds like an ignition problem. I would assume you have checked all the usual suspects like rotor arm, points, condenser etc. A seasoned mechanic told me recently that new condensers are utter garbage, cheap built crap and you would be lucky to see 3,000 miles out of one. I'm servicing the old girl tomorrow so hopefully I won't fit rubbish parts.
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Postby iety2004 » 29 Apr 2005, 00:11

Im gonna fit electronic when i get the right dizzy for my engine, bought it for a bosch dizzy like i should have, but i got a delco :? strange i know.
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Postby Doive » 29 Apr 2005, 00:29

What kind of electronic is it, how much and where from? I'm just interested, it may stop the perpetual replacement of dodgy condensers. However, there is a certain satisfaction to be had from a well set up points and condenser ignition system.
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Postby iety2004 » 29 Apr 2005, 00:55

Pertronix Electronic Ignition is the set i bought,

heres the ad from the one i won

Alfa-Audi-BMW-Ford-Merecedes-Opel-Porsche-VW-Saab-Volvo-Vauxhall

Pertronix 1847V Electronic Ignition unit for vacuum advance distributor
For most late 60's / early 70's cars.

Brand New. Boxed. Unused.

Check the PDF file on the Pertronix websites for fitments.
http://www.pertronix.com/ptx2005_cat/ptx05_auto.pdf

Retails at £60 + postage,

Hope this helps
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