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 Sonett III Battery to Engine earth Lead
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GeoffC
V4 Fanatic

United Kingdom
420 Posts

Posted - 14 Sep 2018 :  13:20:20 Show Profile Reply with Quote
OK silly question - suffering from lack of memory cells!! Just putting the engine and gearbox back in my Sonett and have completely forgotten where to connect the earth lead which comes from the boot mounted battery all the way through the bulkhead across underneath the engine and ends up near the LH engine mount. As long as it's mounted onto the engine I suppose it's OK but I can't think where it was originally - starter mounting bolts - bell housing flange - I don't know???


Took pics before I started just to make sure I got the cooling hoses back right but can't see the main lead. Stupid thing is I replaced it shortly after getting the car but that was 29 years ago!!!!

green96v4
V4 Fanatic

Canada
458 Posts

Posted - 14 Sep 2018 :  14:31:30 Show Profile Visit green96v4's Homepage Reply with Quote
not sure on the Sonetts, but on the 96 it's connected to one of the gearbox/bell housing bolts
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GeoffC
V4 Fanatic

United Kingdom
420 Posts

Posted - 14 Sep 2018 :  17:34:01 Show Profile Reply with Quote
The terminal ring is too small for the bell housing so I have put it under one of the engine stabilizer mounts on the lh cyl head. Should be ok there but it wasn't there before.

Edited by - GeoffC on 14 Sep 2018 17:34:59
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Borstlap
V4 Fanatic

Norway
279 Posts

Posted - 15 Sep 2018 :  15:26:19 Show Profile Reply with Quote
There is no earth lead running from the battery to the engine compartment, the battery's earth is screwed to the chassis in the boot. If you have a lead going all the way to the front it is a home made solution. What I would do is join it with the earth lead coming from the engine on the chassis side half way between the coil and the round, louvred ventilation hole.

Alex
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melle
V4 Guru

United Kingdom
2851 Posts

Posted - 15 Sep 2018 :  15:52:07 Show Profile Visit melle's Homepage Reply with Quote
LHD 95/95's have an off-side/rear head bolt that is tapped for M6 (or M8?), not sure if that's the same on Sonetts. If the earth lead is connected to a bellhousing bolt on a 96, it's most likely retrofit, also on RHD cars I think? Item 25 in below diagram is aforementioned bolt:



www.saabv4.com
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GeoffC
V4 Fanatic

United Kingdom
420 Posts

Posted - 15 Sep 2018 :  18:04:35 Show Profile Reply with Quote
Your absolutely right Borstlap it's not the earth lead at all it's the main live feed directly to the starter motor!! Penny dropped yesterday good job I wasn't dumb enough to connect the battery!!!!!! Sorry definitely a senior moment very embarrassing.
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