afghan Posted June 15, 2014 Author Report Posted June 15, 2014 Points are probably burnt out or not opening. Strip the carby and hose out all the jets and drillings with petrol or carby cleaner, it sounds like there is shit blocking fuel flow either in a jet or a drilling. Check the points for gap as blzbub says, and if they need opening up check the timng afterwards. Check the spark with a screwdriver across the open points and ignition on in case the condensor is leaking and the spark is very weak. If a fuel filter is blocked I'd expect it to start and rev fine, but stutter when the load comes on as you drive away. For it not to start the float bowl would be almost completely dry, which is pretty unlikely. yeah to go from hero to zero i don't think would be anything fuel related except the fuel solenoid (would be fairly rare for that to fail). First check id do is check for spark by removing a spark plug, leaving it attached to the lead, and grounding the body and seeing if it sparks when you crank it. (Using a rag or something to hold the spark plug...) if starting while cranking then stopping when you release key, check coil ballast resistor by bypassing Another remote possibility, check the low tension circuit from the coil to the points (if you have no spark and you have a point gap). Sometimes the wire can break at the distributor body. A common issue on my old Datsun 1200 Quote
afghan Posted June 15, 2014 Author Report Posted June 15, 2014 Hi guys I guess the winner is Tojo2. It was definitely the ballast. Changed that & it started straight away The only one I could get hold of was a 1.60 Ohm. Hope that's right. I couldn't find any references to the ohms. It has a Lucas coil, so I guess that would be the original. B.L.Z.Bub, would have to be second. You were still right, I don't know how this car was still running so smooth. The point's were shot.Hardly any gap as the fibre lobe had all worn down & they were pitted so bad it's a wonder I couldn't see daylight threw a hole that should have been there. Micron left Next was the plugs, don't know how long they have been in there. They were black but no oil or burning The mother in law had this serviced regularly by hometune or someone every three months so I can guarantee that was a rip off So doing a complete tune up. Worked out it's a Bosch system not Nippon Denso which surprised me. Which brings me to another question. The Spark Plugs I pulled out are NGK BP5ES The plugs they told me suit the 3KC motor are NGK BP5EY I have worked out the S is for suppression for radio etc & the Y is v power a v groove in the electrode I have no noise using the Y but I was wondering if they are a hotter plug Which plug would you guys run? I have a little pinging but I think that is because I have not checked the timing since replacing the points. I still have to replace the Cap & rotor as the ones are bought must be for Denso. The cap is too small in diameter , just Appreciate your thoughts Once again Thanks to all your responses Quote
Taz_Rx Posted June 15, 2014 Report Posted June 15, 2014 The number is the heat range, so both have the same. Quote
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