How can I check the oil level switch? The engine has plenty of oil in it but there is no fire going to the plug. I have pulled the plug and grounded it while cranking the engine and there is not fire between the plug gap.
Also does this engine have points and condensor under the flywheel or does it use an electronic inigition module? If it uses a module, where is it mounted and how can you check and see if it is working?
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Re: Engine will not start
Hi disconect all wires going to the coil that feeds the plug ( oil switch & stop switch.
With plug grounded turn engine over to see does the plug spark.
If not try again with new plug.
If it still does not spark replace the coil unit as it either has a faulty coil lead or coil itself is faulty.
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Some engines have a low oil cutoff switch. If the oil level drops to a certain point it kills the engine. Your oil level may be close enough that after starting and running for a little bit the level drops enough to kill the motor. After sitting for awhile the level rises enough to allow the engine to run again check the level and add oil if necessary.
Hope this helps.
well my chevy PU had one of the oil lines going to radiator rust thru this spring and if I had not seen the pressure go and added oil it would have seized up long before I got the 80 miles i had to get home
pull the plug, plug into wire, touch head of plug to metal on engine. hold by rubber boot while touching pull starter, see if you get a spark across the plug gap, its small but you can see it. if no spark check switch. if plenty of spark clean fuel system and check primer
check the oil level in the sump, coolant level, coolant temperature (overheating), transmission oil level if auto. The limp mode is energised by any number of sensors that register a fault that is detrimental to the engine/ gear box. Run the fault codes and repair any faulty units . Reset the CPU with a scanner .
Oil on the plug is an oil problem. it means that either you tipped the mower and oil ran into the cylinder, or you put too much oil in it and it's leaking into the cylinder. Check the engine oil level, empty some if it's over the level it's supposed to be. You'll want to clean the cylinder, and here's how to do it. Get a can of starting fluid. Take the spark plug out, and remove it from the wire, spray a good 5 second shot of fluid in the cylinder, and pull the rope several hard pulls. This will shoot the fluid and oil out the spark plug hole, and the starting fluid will evaporate within a couple of minutes. Spray the firing end of the plug with starting fluid to clean, shake it out, blow on it to get the extra out, and let it dry(should take about a minute.) Pull the rope another round, and then put it back together. It should run fine after that. It'll probably smoke a decent amount at first, but it will go away within a few minutes.
Look around the engine oil drain plug and fill area and see if there is an electric sending unit( small plug with a prong for a wire) that is screwed into the engine if so check to see if its unplugged / could be a low oil cut off switch that kills all power to the ignition if the oil is to low ( or the wire is unplugged)
Low on oil will NOT ever prevent an engine from starting - unless it is a small engine with oil shutoff.
Will not start is a fuel or spark problem...
So. start with fuel:
1: level in gas tank
2. fuel pump delivering it to the engine.
If you can get some gas in a squart bottle and spray it into the intake - and have some one crank it... if it fires, then it is gas and troubleshoot 1 and 2 above...
If it will not fire with gas injected directly into the intake, it may be spark.
1. Pull a plug wire and hold it near the gngine block. Have someone crank the engine and check for spark...
If none, look for bad coil, voltage to coil, etc. that circuit..l.
2. If spark at the wire (from 1 above) then assume timing... with out adequate oil, you may have distroyed the timing belt/chain tensioner (it uses oil pressure to stay tight). Check the timing (both ignition and cam). If the belt is gone, nothing will fire.
Best of luck - lots of possibilities here - so I just want to get you started in the right direction (and away from the oil issue) - besides, you said that you added oil - but not too much - since you cannot get a decent oil level check on a hill!!