Troubles starting when hot
#1
Troubles starting when hot
Hi,
Got a small problem with my 97 disco 1 V8, when the thing gets hot it wont turn over. I had this problem earlier and was told to spray water on the modulator situated near the coil which worked, so l replaced the modulator and all good, but same thing is happening again but spraying water on the modulator is not working so it must be someting else.
Anyone else had this problem..? or know how to fix..
Cheers
Phil
Got a small problem with my 97 disco 1 V8, when the thing gets hot it wont turn over. I had this problem earlier and was told to spray water on the modulator situated near the coil which worked, so l replaced the modulator and all good, but same thing is happening again but spraying water on the modulator is not working so it must be someting else.
Anyone else had this problem..? or know how to fix..
Cheers
Phil
#2
#3
#4
Troubles starting when hot.
Hi All,
Firstly thanks for the reply.
To answer your questions:
Help required...?
Thanks
Firstly thanks for the reply.
To answer your questions:
- The modulator is the "distributor ignition module" which was replaced as this was stopping the ignition circuit when hot - first problem fixed.
- The starter motor works fine.
Help required...?
Thanks
#5
#6
Cold or hot, the act of the starter motor engaging the engine and causing the engine to turn over is controlled by electrical connections (clean battery terminals, ground terminal from battery to frame, and connections at the starter), at the starter, and various interlocks that break the connection to the cable that operates the solenoid. The solenoid itself can easily go bad, and in many cases people replace the entire starter.
Fuel pressure, spark plugs firing are other things that keep it from starting and running, but have no impact on the turning over of the engine. A starter will spin an engine with no fuel in the tank (ask my wife) and all eight plugs removed.
Here's a pix of a older starter, and a second pix of a clean one wired up, that very large cable needs to be clean and tight. That small one is the solenoid wire, it must also be clean and tight, even though it plugs on to a tab, or no initial "click". It does not take much corrosion to mess up high amp electrical connections. Inside the starter, that solenoid shoves the starter gear into contact with the engine, and turns on the almost 300 amps needed to spin the starter under load. That internal contact will become pitted and erratic over time.
Fuel pressure, spark plugs firing are other things that keep it from starting and running, but have no impact on the turning over of the engine. A starter will spin an engine with no fuel in the tank (ask my wife) and all eight plugs removed.
Here's a pix of a older starter, and a second pix of a clean one wired up, that very large cable needs to be clean and tight. That small one is the solenoid wire, it must also be clean and tight, even though it plugs on to a tab, or no initial "click". It does not take much corrosion to mess up high amp electrical connections. Inside the starter, that solenoid shoves the starter gear into contact with the engine, and turns on the almost 300 amps needed to spin the starter under load. That internal contact will become pitted and erratic over time.
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