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Newtronic Electronic Ignition

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irco
Wedgling
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Joined: 22 Aug 2021 00:01
Location: Dunfermline, Fife

Newtronic Electronic Ignition

Postby irco » 05 Oct 2021 22:56

My recently purchased TR7 V8 has Newtronic Electronic Ignition fitted. Anybody out there fitted the same unit & still have the original installation instructions/manual. If so a scanned copy would be much appreciated.
Thanks,
Ian.
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CamGTS
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Posts: 86
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Re: Newtronic Electronic Ignition

Postby CamGTS » 06 Oct 2021 09:10

does this help http://www.triumphspitfire.com/images/p ... Page_2.pdf
Used to be called Piranha so an internet search should find it
Cam

1948 Ferguson TEA20
1978 Chrysler Sunbeam 1300 LS
1979 Talbot Sunbeam Lotus
1981 Triumph TR8 (TR7V8)
1991 Peugeot 205 GTi 1.9
2004 Renault Sport Clio 182
2011 Porsche 911 GTS
2016 Porsche Macan GTS

irco
Wedgling
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Joined: 22 Aug 2021 00:01
Location: Dunfermline, Fife

Re: Newtronic Electronic Ignition

Postby irco » 06 Oct 2021 09:38

Thanks for that, much appreciated. Gives me a better idea of what's supposed to be connected to where. :D
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irco
Wedgling
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Joined: 22 Aug 2021 00:01
Location: Dunfermline, Fife

Re: Newtronic Electronic Ignition

Postby irco » 11 Oct 2021 08:05

A further question for any body able to help. Is the cover of the Newtronic Module removable? Looks like there are a couple of tight fitting push in blanking plugs which may or may not be able to be prised out to uncover fixing screws. See photo. ( Not my unit but a photo copied from the interweb for reference purposes) I've tried poking with a sharp implement but to no avail. Don't want to force the issue & break something.
Attachments
Newtronics module.jpg
Newtronics module.jpg (75.35 KiB) Viewed 20037 times
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Beans
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Re: Newtronic Electronic Ignition

Postby Beans » 11 Oct 2021 19:57

Why do you want to open it?

As for the wiring;
White wire goes to ignition switch;
Yellow to coil terminal that connects to distributor (remove wire between coil and dizzy);
Blue is earth wire.
Image
1976 TR7 FHC (currently being restored ...)
1980 TR7 DHC (my first car, a.k.a. Kermette)
1981 TR7 FHC (Sprint engined a.k.a. 't Kreng)

http://www.tr7beans.blogspot.com/

irco
Wedgling
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Location: Dunfermline, Fife

Re: Newtronic Electronic Ignition

Postby irco » 12 Oct 2021 08:58

Thanks for answer.
Reason for wanting to remove cover is I assume the unit is screwed to the bulkhead & I may want to remove it at some point, to reposition it or clean/paint panel behind it. Not an urgent requirement but I like to be prepared. There are no external fixing screws visible.
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Beans
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Re: Newtronic Electronic Ignition

Postby Beans » 12 Oct 2021 18:11

Mine was fitted many moons ago, and came with a double sided adhesive foam tape to the back of the unit.
Attachments
2011-06-15-02 Schakelunit ontsteking.jpeg
2011-06-15-02 Schakelunit ontsteking.jpeg (145.01 KiB) Viewed 19979 times
Image
1976 TR7 FHC (currently being restored ...)
1980 TR7 DHC (my first car, a.k.a. Kermette)
1981 TR7 FHC (Sprint engined a.k.a. 't Kreng)

http://www.tr7beans.blogspot.com/

irco
Wedgling
Posts: 45
Joined: 22 Aug 2021 00:01
Location: Dunfermline, Fife

Re: Newtronic Electronic Ignition

Postby irco » 13 Oct 2021 08:03

Ah, ok. Thanks for the reply.
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dursleyman
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Re: Newtronic Electronic Ignition

Postby dursleyman » 14 Oct 2021 14:56

Early ones were screwed on with a couple of self tappers but all the later ones use the double sided tape.
I have the fitting and testing instructions if you need them:-

https://drive.google.com/file/d/1j21gq9 ... sp=sharing
https://drive.google.com/file/d/1MxhIeW ... sp=sharing
Russ

1981 TR7 Sprint DHC & 1977 TR7 Sprint FHC
Dursley
UK

http://tr7russ.blogspot.co.uk/

Image Image

irco
Wedgling
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Location: Dunfermline, Fife

Re: Newtronic Electronic Ignition

Postby irco » 15 Oct 2021 08:26

Thanks for that, much appreciated.
Ian. :D
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Mals1960
Wedgling
Posts: 35
Joined: 23 Jul 2016 02:12

Re: Newtronic Electronic Ignition

Postby Mals1960 » 22 Oct 2022 19:42

Hi Russ,

Do you still have the test instructions please? I think that the original link has expired.

Regards

Alan

dursleyman
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Re: Newtronic Electronic Ignition

Postby dursleyman » 23 Oct 2022 17:16

Reloaded them to Photobucket, hope its what you need, message me if you want more

Image
Image
Russ

1981 TR7 Sprint DHC & 1977 TR7 Sprint FHC
Dursley
UK

http://tr7russ.blogspot.co.uk/

Image Image

Howard_B
Rust Hunter
Posts: 167
Joined: 09 May 2015 16:11

Re: Newtronic Electronic Ignition

Postby Howard_B » 16 Nov 2022 11:13

If you dismantle the unit you will need to replace thermal paste between the power transistor and the metal heat sink. I got mine from RS Components - 1805306 Silicone grease, 1.4 W/m K, 20g which cost about 10 quid inc postage

Howard_B
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Re: Newtronic Electronic Ignition

Postby Howard_B » 01 Dec 2022 09:33

The Pirana/Newtronics units can suffer from bad solder connections (aka dry joints) which can easily be sorted with a few minutes soldering. This turned out to be the problem with mine and I have had reports of three other units suffering form the same issue.

Procedure is as follows:-

1) Remove PCB from black plastic cover

2) Re-solder all the soldered connections with a small soldering iron & suitable solder (with flux)

3) When finished, spray PCB with clear varnish to protect components

4) Reassemble unit applying thermal paste to the metal cased power transistor.

dursleyman
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Re: Newtronic Electronic Ignition

Postby dursleyman » 01 Dec 2022 15:07

I have got a few spares of those if anyone is stuck

Image
Russ

1981 TR7 Sprint DHC & 1977 TR7 Sprint FHC
Dursley
UK

http://tr7russ.blogspot.co.uk/

Image Image

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