Unable to start the engine. Engine turns over though not very fast, got compression, got fuel, on checking spark, got weak yellow spark. Battery was fully charged prior to attempting to start the engine. Engine just cranks but wont start, have replaced plugs, contact points and distributor cap. When I remove a plug smells of petrol???? Any ideas of where to go next???
Change the oil. Thick oil winter can cause it, or over diluted oil too. Got similar issue with my mark 1. Bought it but never ran more than 30 secs. Just drained 8 litres of oil out!!! Glad I changed the carby now. Hope you changed the condenser too. Once the plugs are fouled (may look OK) they are no good so might have to change them again.
Try replacing starter motor. Repeatedly cranking it over only heats the the starter motor , this then softens the solder and it gets thrown. So the motor does not turn as fast as it should. Try push starting it.
All fords were notorious for starting at one bit but on the Cortina
that I had one winter I had to remove Two spark plugs from 1 and 3 cylinder , take them in the house warm them up on the gas ring then on return to the car pour in a half spoonful of petrol to the "pots" then refit the hot plugs then after 3 swings she would go. The only other solution was to put the car in a nice warm
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common problem sounds like the engine is flooded its more than likely the old engine with nicosil coated liners they wear fast due to the high sulphur content in the fuel and loose compression you can restart by putting a small amount of oil down each spark plug hole in to the cylinders you need to check your engine no. with jag dealer to see if it is in the affected range never stop the engine when it is cold
First off, ether is not the way to go at all! You'll end up messing up the piston rings with continuous use. Also with using ether engines tend to get "addicted" to it (its the only way they will start after some time as the rings get burnt and compression under normal cranking isnt enough)
The fact you can start the engine on ether means fuel prob isnt the problem. I would have said the problem was probably your pre-heating system and to check your plugs, wiring and fuses for the pre-heating system but the fact hot start doesnt work either doesnt make sense.
How long have you been using ether? If it has been for an extended period then I have a feeling the piston rings might be shot and full compression cant be reached during cranking and the ether just kickstarts your engine into starting. Any smoke out the tailpipe?
THE SMOKE YOU HAD IS BECAUSE MANY TRIES TO START COLLECTED FUEL IN THE COMBUSTION CHAMBERS AND SUDDENLY BURNT ON START. ANY WAY THE HESITATION OF CRANK START FOR LONG TIME CHECK WHETHER YOU DO NOT HAVE A PROBLEM WITH THE FUEL PUMP,FUEL FILTER OR COLD START SENSOR. CHECK YOUR SPARK PLUGS CLEAN THE THROTTLE BODY AND DO WITH SCANNER THE ADAPTATION.S
The FC3S is notorious for this and fueling issues. Check all ground points, battery cables and connections. Check the draw from the starter. If the voltage drops below 10V there is not enough power for the ignition, causing weak spark. It really needs to spin over 200rpm cranking. Pop starting does not necessarily mean the compression is good. You need to make sure it cranks fast enough to get a proper compression test with rotary tester, New NGK plugs, new NGK plug wires.
First, let's see what normally takes to start a gasoline car engine:
1. The engine must be turned over by the starter motor with enough speed to catch. For this to happen, the battery must have enough charge, the starter motor and the starter circuit should be OK. 2. Fuel mixed with air in the correct proportion must be supplied to the enigne cylinders; 3. Spark - there must be a strong spark at the proper moment to fire the air/fuel mixture. 4. Proper timing - the engine valves should open and close in appropriate time. 5. Compression - normal compression in the cylinders is 120 - 170 psi. The engine won't start if the compression is lower than 70 - 80 psi.
If the engine won't start - there's no magic - one of these things is probably missing. Sometimes the problem could be very hard to find, for example, when it doesn't happen at all the times. Often, though, it could be something very simple, like a dead battery.
If the car won't start, check the basic things first: Is the battery OK? - here is a simple way to check battery: How to check the battery. Do you have oil in the engine? Is there enough fuel in the tank? - it's a very common situation when the fuel gauge isn't working properly and the car runs out of fuel with the fuel gauge still showing some fuel in the tank. Of course, you should always consider your own personal safety when checking things under the hood or doing any work on your car. Check your car's owner's manual for safety precautions.
Fast blink usually indicates a burned out bulb. Need to check for fuel pressure . If there is no fuel pressure could be pump., relay , fuse , wiring . Check to see if you have spark. You can use a spark plug as a tester . Pull the coil wire from the distributer insert the plug in the wire ang ground the side of the plug to the engine . Get someone to turn over the engine . You should see a bluish white spark . If not there is a problem with the ignition system .It might be easier to use one of the spark plug wires rather than the coil wire for this.
Do a vacume test . Need a vacume gauge for this. Conect it to a major vacume source on the engine and read the scale. EGR valves are a a major problem for no vacume if they stick open. If all those things are ok check compression be taking all plugs out and screwing a compression gauge into each plug hole , turn engine over and record the pressure. All cylds should be close to the same . Most gauges have indicaters as to what is to low or fair etc. If the engine light was on check for codes because some sensors can cause a no start .
According to http://freespace.virgin.net/tommy.sandham/databook.htm# Rocker Adjustment, the cold clearance is .008" intake/.018" exhaust in the non-GT 1500cc, and .012" intake/.022 exhaust on the GT. Sweet little car!!!