Series 1 Starter Circuit - I don't understand

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Learningallthetime
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#1 Series 1 Starter Circuit - I don't understand

Post by Learningallthetime » Wed Jul 16, 2025 8:13 am

Ok - trying to rebuild a rusted series (64) FHC
a lot of missing parts and body - especially around the battery box
The circuit diagram shows the battery positive terminal connecting to the jump post (which is also missing) and also connecting to the starter cable on the jump post
Wouldn't doing this completely miss starter relay - and connect the battery directly to the starter and would therefore be continually on?
What am I missing??
Last edited by Learningallthetime on Sun Jul 20, 2025 1:25 am, edited 1 time in total.
1964 XKE (e-type) LHD - 3.8 5 Speed FHC

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mgcjag
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#2 Re: Series 1 Starter Circuit Jump Post - I don't understand

Post by mgcjag » Wed Jul 16, 2025 8:18 am

The starter motor is actually 2 parts...the motor/pinion and the solonoid.....the battery cable goes to the solonoid...when the starter relay operates it pulls in the solonoid that then connects the battery cable to the motor...Steve
Steve
69 S2 2+2 (sold) ..Realm C type replica, 1960 xk150fhc

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#3 Re: Series 1 Starter Circuit Jump Post - I don't understand

Post by Gfhug » Wed Jul 16, 2025 11:35 am

Hello and welcome to the best place for all things E Type.
To help people answer your questions, please add your name and car type to your signature area by clicking on your user name top right.
That way others will know to answer appropriately. For example different responses for a 3.8 vs 4.2 car, positive and negative earth, different brakes. It all helps give you the info you want.

Good luck with your project and keep us posted how you get on.

Geoff
S2 FHC Light Blue
S2 OTS LHD - RHD full restoration

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Learningallthetime
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#4 Re: Series 1 Starter Circuit Jump Post - I don't understand

Post by Learningallthetime » Fri Jul 18, 2025 10:04 pm

Thanks for your response - had a look and couldn't see how I could edit my profile to add the car details

Its a 1964 e-type FHC from North America (LHD) - 3.8 - 5 Speed car - full of rust, but (mostly) complete

Does anyone have an image of how the Battery connects to the starter relay for a 64 - all of this is disconnected and the battery area is rust away - the car doesn't appear to have a solenoid on the starter motor itself

Thanks
1964 XKE (e-type) LHD - 3.8 5 Speed FHC

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#5 Re: Series 1 Starter Circuit Jump Post - I don't understand

Post by abowie » Sat Jul 19, 2025 1:20 am

If your car's a 1964 3.8 it doesn't have a jump post.

There is a remote starter solenoid C19468 with manual starter button mounted underneath the heater box.

The battery cable goes to one solenoid post, and then a cable goes to the starter motor. Have a look here https://www.sngbarratt.com/English/us/F ... mbly/21322

There's a white/red wire with a big Lucar connector that comes from the starter switch on the dash.

The Factory Fit thread viewtopic.php?f=4&t=2006 has hundreds of photos of original cars. A useful resource when trying to work out what goes where :-)
Andrew.
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB. 1979 MGB.
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia

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#6 Re: Series 1 Starter Circuit Jump Post - I don't understand

Post by mgcjag » Sat Jul 19, 2025 7:49 am

To add your details click on your username/avatar at top right of screen.....click user cntrole panel...profile....edit signature(name and car details,)
Steve
69 S2 2+2 (sold) ..Realm C type replica, 1960 xk150fhc

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#7 Re: Series 1 Starter Circuit Jump Post - I don't understand

Post by Simonpfhc » Sat Jul 19, 2025 8:01 am

Hi there “learningallthetime” !!

Here’s a picture of a similar LHD rusty 3.8. The starter solenoid is circled in red. The nearmost connector is where the battery connects, and the furthest connect goes straight to the starter motor.


Image

You can also see where the other battery connection bolts straight to the bulkhead. Remember yours will probably be +ve earth!
Simon
62 3.8 FHC
91 Porsche 928GT
Find me on Instagram and Facebook @oldcarfixer

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#8 Re: Series 1 Starter Circuit Jump Post - I don't understand

Post by Learningallthetime » Sun Jul 20, 2025 12:35 am

abowie wrote:
Sat Jul 19, 2025 1:20 am
If your car's a 1964 3.8 it doesn't have a jump post.

There is a remote starter solenoid C19468 with manual starter button mounted underneath the heater box.

The battery cable goes to one solenoid post, and then a cable goes to the starter motor. Have a look here https://www.sngbarratt.com/English/us/F ... mbly/21322

There's a white/red wire with a big Lucar connector that comes from the starter switch on the dash.

The Factory Fit thread viewtopic.php?f=4&t=2006 has hundreds of photos of original cars. A useful resource when trying to work out what goes where :-)
Excellent response
Turn's out I was looking at a slighter later wiring diagram and I am missing the solenoid - but at least now I'm on the right track
Thank you
1964 XKE (e-type) LHD - 3.8 5 Speed FHC

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#9 Re: Series 1 Starter Circuit Jump Post - I don't understand

Post by Learningallthetime » Sun Jul 20, 2025 12:37 am

Simonpfhc wrote:
Sat Jul 19, 2025 8:01 am
Hi there “learningallthetime” !!

Here’s a picture of a similar LHD rusty 3.8. The starter solenoid is circled in red. The nearmost connector is where the battery connects, and the furthest connect goes straight to the starter motor.


Image

You can also see where the other battery connection bolts straight to the bulkhead. Remember yours will probably be +ve earth!
That's incredibly useful - thanks for posting
I'm completely missing the solenoid setup - hence the confusion
1964 XKE (e-type) LHD - 3.8 5 Speed FHC

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#10 Re: Series 1 Starter Circuit Jump Post - I don't understand

Post by Learningallthetime » Sun Jul 20, 2025 12:52 am

mgcjag wrote:
Sat Jul 19, 2025 7:49 am
To add your details click on your username/avatar at top right of screen.....click user cntrole panel...profile....edit signature(name and car details,)
Found it second time around - thank you
1964 XKE (e-type) LHD - 3.8 5 Speed FHC

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#11 Re: Series 1 Starter Circuit - I don't understand

Post by Gfhug » Sun Jul 20, 2025 8:25 am

All we need now is your name :wink:
We are generally discouraged from using too many quotes as it all uses up server space. If you do need to quote edit it down to just a few relevant words, please.

Conversion to negative earth is well worth considering while you’re working on the project. There are details of how to do it in the forum. As you’ve learned there is so much on here and lots of friendly help and advice.

Geoff
S2 FHC Light Blue
S2 OTS LHD - RHD full restoration

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