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T O P I C    R E V I E W
Betsy67Posted - 25 Nov 2018 : 14:03:04
Is the 96 supposed to have an engine earth strap?
The reason why Im asking is that a) I cant see one and b) once warm, Betsy takes some starting, due to a low turnover speed on the starter.
Ive not checked anything else - charging etc, but thought that an earth cable missing could be a quick and easy fix.
13   L A T E S T    R E P L I E S    (Newest First)
WoodyPosted - 03 Aug 2019 : 18:25:34
On RHD cars the earth braided cable end is bolted at the engine side stay bracket lower hole to the cylinder head aside No 4.
72sonett3Posted - 31 Jul 2019 : 21:10:36
Ah... probably not.

Maybe on cylinder 4?

--
'72 97
'77 96L conv.
'79 96GL (LPG)
'83 900i (LPG)
'95 900SE conv.
'99 9-3T
mellePosted - 31 Jul 2019 : 19:30:51
Also on RHD cars?

www.saabv4.com
72sonett3Posted - 31 Jul 2019 : 18:33:47
quote:
Originally posted by deggsie
Yes.
There's a flat braided cable ... to an engine/gearbox bell housing bolt.


To a threaded cylinder head bolt on cylinder 2.

--
'72 97
'77 96L conv.
'79 96GL (LPG)
'83 900i (LPG)
'95 900SE conv.
'99 9-3T
Jimmys old SaabPosted - 27 Jun 2019 : 17:00:09
Yes, I've removed the battery tray and used proper heavy duty cable for the battery to starter connection. I filled the new connector to the starter with solder. I shall use the old battery to block earth strap to connect block to body.

Saab 96 1971
Saab 9000 CSE turbo 1993
VW T5 LWB 2012
DerekPosted - 26 Jun 2019 : 11:41:25
If you have moved the battery to the boot you might also have removed the battery tray The earth strap from the tray to the engine can be remade from the engine to the bulkhead and the circuit will then be back to normal. No harm in adding an extra earth as long it is a good metal to metal contact. Make sure you use a large section cable from the battery to the starter to minimise voltage drop. Use a correct HD crimper for the connections.
FYI https://www.autoelectricsupplies.co.uk/product/752/category/124
Jimmys old SaabPosted - 25 Jun 2019 : 23:18:24
Ah! Good point regarding painting the starter motor; I've just painted mine and installed it...getting that lower bolt tightened involved some swearing! Now, I didn't paint the mating 'collar' of the motor but I did grease it, I don't think that would affect the earth would it?
That brings me to the main question I have;
I'm moving the battery to the boot...so I shall naturally earth to an area of the body nearby...so in order for the starter to work I will need to earth the block/and/or gearbox back to the body, yes?



Saab 96 1971
Saab 9000 CSE turbo 1993
VW T5 LWB 2012
mellePosted - 28 Nov 2018 : 20:45:16
Good tip Derek. Reminds me of a 95 I've broken that had a cork gasket between the starter and the bellhousing, the stud and bolt wrapped in PTFE tape and nylon washers under the nut and the bolt head. No idea how that could have worked; the engine was seized so I haven't tried starting it. I've indeed spray painted my recent overhauls, but I've masked off the contact faces.

www.saabv4.com
DerekPosted - 28 Nov 2018 : 17:31:32
Not a comment for Melle. I've seen "rebuilt" starters that have been painted all over. Remember that the face that bolts up to the block must be bare metal to earth it to the block. When rebuilding an engine, this face can get spray painted too. Not good.
mellePosted - 26 Nov 2018 : 09:18:09
I recently overhauled two starters, simple job really. The main issue with them was a build up of grime on the inside. I completely stripped and cleaned them and I also replaced most of the bearings and seals while I was at it.

www.saabv4.com
RhysNPosted - 26 Nov 2018 : 07:17:41
I have often in the past with my older cars, run an earth direct to a bell housing bolt as well as one to the body, just to eliminate a potential "less than healthy" earth. As a trial you could use a jumper cable just to check. If the starter weren't such a PITA it may be worth checking that it has clean contact between housing and the mounting areas?
Betsy67Posted - 25 Nov 2018 : 18:20:08
Thank you.
deggsiePosted - 25 Nov 2018 : 17:15:50
Yes.
There's a flat braided cable that runs from the battery -ive terminal, it's bolted to edge of battery tray then to an engine/gearbox bell housing bolt.

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