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How to: 2.2 Battery change and improve earthing

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24K views 27 replies 14 participants last post by  bedalus  
#1 ·
I had to change the battery in the civic the other day as starting was getting a little laborious in this cold weather and thought I'd share some pictures.

The correct battery is an "096". Here are the specs for the Bosch S5 battery that I bought:

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First of all I removed the engine cover - it is held in place with four 10mm nuts and reveals this:

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Next remove disconnect the earth strap - it is vital you do this before touching the positive connection as it prevents any shorting out onto the body. The clamp is held in place with a 10mm bolt.

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Now you can go ahead and remove the positive lead - again a 10mm clamp hols it in place. You will also need to undo the cable tidy that fits onto the battery strap (it can be undone with a 10mm socket).

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Now you can loosen the battery strap. You'll need a deep 10mm socket or a spanner. You don't need to undo the nuts all the way - after they have been loosened the other end of the strap will unhook. The battery will now withdraw from the car.

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To improve the earthing, I bought 30" and 18" earth cables from Halfords - cost was about ÂŁ8 with a trade card. As it turned out, a 24" cable is probably a better length to buy than 30".

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One end of the long cable goes on the earth clamp like so:

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The other end is connected to the engine as shown:

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The shorter of the cables goes here:

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and here:

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Zip tie it in place:

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Here's the route of the longer cable:

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After I had fitted the new battery in place I wasn't happy with the tightness of the earth clamp so it was back to Halfords to get a new clamp and strap:

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I removed the original clamp and cable:

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And fitted the new clamp and cable:

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Here it is all in place:

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If you have sat-nav then you'll need to start the engine and initialise the system - allow 10mins.
 
#2 ·
could be a cheaper alternative to parscos grounding kit .
any noticable differences

wold it be ok for the 1.8 petrol also
 
#3 ·
could be a cheaper alternative to parscos grounding kit .
any noticable differences

wold it be ok for the 1.8 petrol also
It's hard to tell if there's been any improvement as starting the engine was very laborious to begin with and the new battery has helped a lot.

Parsco's kit is much better quality than the Halfords cables I put on but I fitted what was available at the time. I would recommend changing the negative clamp at the battery as the OEM one is woeful - the Halfords clamp and 9" cable came to another ÂŁ7 with a trade card.

I've got no idea if it would be suitable for a 1.8 petrol but I don't see why it wouldn't. All the wires are doing is adding extra connections between the battery, chassis and engine.
 
#5 ·
Looks good mate ;)

To help it even more you can sand the contact points on the chassis and engine so that you get a good metal to metal contact (no paint or grime in the way).

Made a difference for you?
I would have bought your kit if you still had black ones available as it looks far better then what I've fitted.

The new battery has made a real difference so it's hard to say if the grounding cables have made things any better but they can't hurt and will probably prevent issues further down the road.
 
#6 ·
Takes 10 minutes at most if you're just swapping the battery. I did mine a few weeks back for the S5096. No need to take off the engine cover unless you're fitting the grounding cables.
Negative terminal off, positive terminal off, battery strap undone.
Optional clean of the battery box here, battery swap.
Battery strap on, positive terminal on, negative terminal on.

Job's a goodun!
 
#10 ·
I'm sorry I don't know anything about the 1.8 engine - you'd have to measure up yourself.

The cables are sold in 9", 18", 24" & 30". For the 2.2 diesel I recommend using the following lengths:

24" (Battery to Engine)
18" (Engine to Chassis)
9" (Battery to Chassis)

I also recommend getting a new negative terminal clamp.
 
#14 ·
additional 10bhp if you clean the engine.. ;-) nice work!
 
#17 ·
Sorry to revive an old thread, but I'm interested to know : If you removed the battery box would it be possible to fit a bigger battery? I've got a bosch 110 from my bora sat in my kitchen doing nothing but gathering dust! Its too long for the battery box but its a hell of a good battery and I'm loathed to throw it away.
 
#23 ·
I'm interested in what actually fails on the original Honda earthing connectors... they were obviously OK when the car left the production line, so what goes wrong? If it's just corrosion, then surely a strip-down, clean up and coating of Vaseline (as mentioned) should restore the continuity?
 
#27 ·
A good ground connection is important to the starter motor. I have not seen on any other cars that the ground goes to the chasis first an then to the engine. If you live in warm climate, and drive long distances, then the factory solution is ok. But, in colder regions, and specially diesel engines need good connection.
I have seen on 2.4 td transit that the ground cable goes straight to the starter mototor mounting bolt.
On installing amps there is a rule to install 3 new and better cables- from the alternator to battery +, from battery - to the engine and to chassis. This should hindern voltade drop, dimming lights when listening to Prodigy- smack my bĂ—tch up.