Car wont turn over?

[westaus29]

The large left terminal is connected to the starter coils and is insulated from the starter body by insulating washers. The other end of the starter coils is connected to earth inside the starter body, and this completes the starter circuit.

[SteveR]

On 9/5/2023 at 9:46 PM, johnjnr said:

If you notice on the lower large terminal the left nut and connector plate that goes to the starter are painted black You can also see that the nut on the starter partially in view at the top is also painted black. This will prevent any grounding and even if the relay is working the starter will not. They need cleaning to bright metal including the threads. Now if these are indeed painted then what does the area where the starter meets the engine look like? Is that painted too? If so clean the paint off and remove any rust that might be on the engine in this area.

[SteveR]

If you get a 6vdc reading on the Neg to ground next place your meter on the Neg and either Pos terminals you should get 6vdc. If not then your ground is no good. The ground will be through where the starter meets the engine. So if you set your meter to ohms you should get a closed circuit from the 'Pos nut' to the motor or the Pos (+) terminal on the Battery

 

Edited September 13, 2023 by SteveR

[johnjnr]

Thanks everyone that has posted info over the last week or so and apologies for not replying to any sooner, ive been on my summer hols!  

All your info has been extremely helpful and i hope to get back to the car over this weekend. Thanks John

[greg g]

Check the main ground cable.  If the starter was painted during its servicing, remove it and  assure paint is removed from the mounting points.  With your meter compare voltage across the battery terminals on fully charged battery.  Now check the voltage from the negative terminal to a head bolt.  If the voltage is lower at the headbolt is lower than the reading between the battery terminals your ground cable is suspect.