DangerousPerson Posted October 22, 2011 Share Posted October 22, 2011 I've been having some issues with my KE70 for a while with it missing. Does so when idling and driving and causes it to jerk and judder. Is worse when cold but also plays up a bit once it's up to normal running temp. I have just had the dizzy recond' and new points and timing set on Friday (ran fine for about twenty minutes after which was just long enough for the garage to close and it won't be open til Tuesday). Advancing the timing makes it a wee bit better but still not great. Occasionally it stalls when idling too. Is this likely to be a problem with the coil/dizzy/plugs etc or is there somewhere else I should be looking? What test can I do to establish the cause of the problem? Quote Link to comment Share on other sites More sharing options...
Lump Posted October 22, 2011 Share Posted October 22, 2011 I'd probably suspect the points, I've had engines that just eat them for no apparent reason - often quite soon after installation, try resetting the gap and see if it improves Otherwise sounds like it could be water in the fuel Quote Link to comment Share on other sites More sharing options...
Llama Posted October 23, 2011 Share Posted October 23, 2011 Dodgy condenser is also one possible fault. Not that easy to test, but you should be able to get a replacement for under $10. Quote Link to comment Share on other sites More sharing options...
DangerousPerson Posted October 23, 2011 Author Share Posted October 23, 2011 A work mate suggested putting half a cup of meths in my fuel to draw out any water that may be in the system. Anyone tried or can recommend for or against doing this? Just had a look at the points and they're not looking too bad but have signs of wear. Last ones had worn unevenly and Were almost gone in two months. What could be causing it? Quote Link to comment Share on other sites More sharing options...
Raizer Posted October 23, 2011 Share Posted October 23, 2011 Yeah meths absorbs water and blends into the petrol. Quote Link to comment Share on other sites More sharing options...
Lump Posted October 23, 2011 Share Posted October 23, 2011 Just had a look at the points and they're not looking too bad but have signs of wear. Last ones had worn unevenly and Were almost gone in two months. What could be causing it? worn cam lobes on the distributor or a bent distributor shaft, how reconditioned was the dizzy? Quote Link to comment Share on other sites More sharing options...
DangerousPerson Posted October 23, 2011 Author Share Posted October 23, 2011 Will ask mechanic on Tuesday exactly what he did. The new points he put in on Friday are wearing the same as my old points that were in before he recond' it so I'm thinking maybe the shaft is bent and he didn't pick up on it? Would an electronic ignition be all good even if the shaft is bent as a quicker upgrade and fix if this is the problem? Would replacing plugs/leads/rotor/cap be any use as they all look fairly new (I haven't replaced them since buying 8 months ago)? Quote Link to comment Share on other sites More sharing options...
Dell'orto Posted October 23, 2011 Share Posted October 23, 2011 Check and see if he lubed the shaft too, most people dont. Ask about the vacuum advance unit too, they often die. Quote Link to comment Share on other sites More sharing options...
DangerousPerson Posted October 23, 2011 Author Share Posted October 23, 2011 Cheers for all the tips. Getting undrivable very quickly so I'm damn keen to get it sorted. Quote Link to comment Share on other sites More sharing options...
DangerousPerson Posted October 25, 2011 Author Share Posted October 25, 2011 Went back to mechanic and he lubed it up and re-set the gap on points and it's running a lot better but still not 100%. Am going to replace coil and see if that helps as the one that's in is extremely hot when running and I'm running out of ideas. Quote Link to comment Share on other sites More sharing options...
Beaver Posted October 25, 2011 Share Posted October 25, 2011 check tappet/valve clearances and timing as well. Ive learnt lately that these two things can cause really odd problems and are both very easy to check/adjust. Quote Link to comment Share on other sites More sharing options...
JasonK Posted October 25, 2011 Share Posted October 25, 2011 check to see if the vacuum advance is working, they have a small knob on the firewall side of the dizzy that should move in when you give it some revs, pretty common problem. could also be a dodgey condensor Quote Link to comment Share on other sites More sharing options...
DangerousPerson Posted October 25, 2011 Author Share Posted October 25, 2011 Anyone know clearances for 4k? Really need a flamin' manual for this car. Quote Link to comment Share on other sites More sharing options...
phatt20 Posted October 25, 2011 Share Posted October 25, 2011 Anyone know clearances for 4k? Really need a flamin' manual for this car. 8 and 10 thou and it will be happy. what sort of judder/rough running is it doing? these things are brutally simple to work on ,but just as easy to fuck up cos there is stuff to adjust, and when there is stuff to adjust people will do it. Quote Link to comment Share on other sites More sharing options...
DangerousPerson Posted October 25, 2011 Author Share Posted October 25, 2011 Does it all the time ie. Idle, acceleration, cruising. I have a vac gauge and have been keeping a close eye on I and it doesn't do anything odd other than a slight drop of about 1Hg every time it misses. Will have a go at doing the tappets tomorrow, do I set when hot or cold? Quote Link to comment Share on other sites More sharing options...
phatt20 Posted October 25, 2011 Share Posted October 25, 2011 do it hot, your telling me when its doing it but not what sort of miss/judder it is, is it dropping a cylinder,or two? does it shake like fuck or is it just a wee miss sorta thing? the beauty of these things is its so cheap to go right thru and do a set of points/plugs/leads/timing/air and fuel filters/set tappets etc. then you have eliminated all the cheap bits, has it done it ever since you owned it or is it a recent issue? Quote Link to comment Share on other sites More sharing options...
DangerousPerson Posted October 25, 2011 Author Share Posted October 25, 2011 It did do it very occasionally and subtly from a few weeks after I bought it. When it misses it is in wee clusters almost and the whole car judders so you are moved in your seat. Feels almost like it's lost power for a split second then regains. Am getting a coil to start and will work my way through all the replacement bits to eliminate them one by one. Quote Link to comment Share on other sites More sharing options...
phatt20 Posted October 25, 2011 Share Posted October 25, 2011 It did do it very occasionally and subtly from a few weeks after I bought it. When it misses it is in wee clusters almost and the whole car judders so you are moved in your seat. Feels almost like it's lost power for a split second then regains. Am getting a coil to start and will work my way through all the replacement bits to eliminate them one by one. that would be the go. you can test the leads with an ohm meter but for the cost of them i usually just replace them. sorta sounds like its dropping a cyl or two maybe? so going thru all the consumables will be a very good start. perhaps drain the carb too, there is a nut on the front of the carb bowl, take it out and flush some fuel thru . Quote Link to comment Share on other sites More sharing options...
Beaver Posted October 25, 2011 Share Posted October 25, 2011 this sounds very similar to the problem my avenger was having. ended up being valve clearances after hours and hours of fucking about with ignition etc. Quote Link to comment Share on other sites More sharing options...
Rookie Posted October 25, 2011 Share Posted October 25, 2011 Went back to mechanic and he lubed it up and re-set the gap on points and it's running a lot better but still not 100%. Am going to replace coil and see if that helps as the one that's in is extremely hot when running and I'm running out of ideas. This points me in the direction that you have a 7v coil and no balast resistor. Check and see if this is indeed the case, it should say on it. If it is then the coil could be overheating and causing the problems. Does the miss happen straight from cold? or does it only occur once the motor has been running for a while? Quote Link to comment Share on other sites More sharing options...
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