10 replies to this topic

[Udo]

Right i've searched and come up with the following but nobody has ever finished their threads by confirming that it works - so anyway....


Changing from inertia starter (soleniod on inner wing) to pre-engaged (piggy back soleniod)

What I have found says to leave the old inner wing mounted soleniod in place and effectivly use it as a relay for the new starter/soleniod by doing the following.......

From the post on the old soleniod where the cable to the starter motor used to connect take a feed to the small spade connector on the new piggy backed soleniod (with a suitable sized piece of wire of course)

remove the main battery cable from the old soleniod and attach it to the new soleniod (main round post)


This all seems fine in theory but........

Do I need to connect anything to the large spade connector on the new solenoid

and

Will the battery charge? As the main battery cable is no longer in contact with any of the brown alternator/charge curcuit wires



PLEASE only definative answears I dont want to burn out my car with "I think..." answears

Cheers

Ian

[Grayedout]

Easier than that. Take the cable that links from starter motor from its post on the inner wing solenoid and bolt it onto the other post, directly on top of the main battery feed and hence supplying a permament feed to the new solenoid on the new starter. Then all you have to do is extend the wire from the ignition switch, which is the small spade low down between the two inner wing solenoid posts, to the new solenoid and voila !

[ginigwunkle]

you got the correct ring-gear?

[Guess-Works.com]

not to forget that the ignition switch feed to the solenoid on the pre-engaged starter SHOULD be isolated from the ignition switch as it is a high current draw, you either need to use the old solenoid as a relay, or install a relay... Hence why it's a big connector on the back of the solenoid. So instead of extending the wire, take a feed of the second post on the old solenoid ( where the start use to be connected ) and run that to the new solenoid ( with some 30 amp wire )

[Grayedout]

As he said !!! ^^^^^

[Udo]

Easier than that. Take the cable that links from starter motor from its post on the inner wing solenoid and bolt it onto the other post, directly on top of the main battery feed and hence supplying a permament feed to the new solenoid on the new starter. Then all you have to do is extend the wire from the ignition switch, which is the small spade low down between the two inner wing solenoid posts, to the new solenoid and voila !

Yes but the pre engaged starter soleniod draws more current than the inertia one which is why I shouldnt do this as I could burn out the ignition switch - which was the reason for using the soleniod as a relay

[Udo]

you got the correct ring-gear?

Yes new engine has pre engaged ring gear which is why I need to change the starter wiring

[Udo]

So anyway...

Do I need to connect the large spade connector on the pre engaged starter to anything?

and

How will the battery charge?

[GraemeC]

not to forget that the ignition switch feed to the solenoid on the pre-engaged starter SHOULD be isolated from the ignition switch as it is a high current draw, you either need to use the old solenoid as a relay, or install a relay... Hence why it's a big connector on the back of the solenoid. So instead of extending the wire, take a feed of the second post on the old solenoid ( where the start use to be connected ) and run that to the new solenoid ( with some 30 amp wire )

The large spade connector is where the 30 Amp wire should go to - ie the ignition trigger to the solenoid. The small spade connector is the +12V cranking bypass for ballast ignition systems.

[Udo]

Cheers Graeme, I had wrongly assumed the small spade was the trigger for the soleiod.

So thinking about it, to make sure the battery will still charge I need to connect the main battery cable to the Alternater

So if I also put a wire from the main battery cable on the pre engaged soleniod to the same post on the old inner wing soleniod where the brown wire are then this should complete the curcuits to start and to charge

Can anybody confirm please?

[syholl]

All you need to do is connect the existing starter cable to the new starter motor big terminal, and put in a link from this to the trigger terminal on the new starter spolenoid. That way you are still using the existing wing mounted solenoid. Works a treat....