Moving the battery to the engine end.

An alchemy of sparks, copper wire and earth

Moderators: User administrators, Moderators

Locked
getunder
Registered user
Posts: 1807
Joined: 20 Feb 2009, 19:14

Moving the battery to the engine end.

Post by getunder »

The long cable run and possible voltage drop from the battery to the engine end has been mooted as a possible source of "sticky" or hot starting problems in older vans . Anyone transpanted the battery to the engine end or in the rear locker. Any insuperable problems likely.?

User avatar
The_blue
Registered user
Posts: 310
Joined: 22 Feb 2007, 16:01
80-90 Mem No: 3484
Location: Mansfield ish.

Re: Moving the battery to the engine end.

Post by The_blue »

I did look into this. I gave up in the end because i worked out the earth was the issue and just cleaned them up.

I assume you'd put it in the gap under the side pods in the engine bay? Just be aware how wet that bit can get.
Joined club Talbot!

User avatar
CovKid
Trader
Posts: 8411
Joined: 30 Apr 2006, 13:19
80-90 Mem No: 3529
Location: Ralph - Coventry (Retired)
Contact:

Re: Moving the battery to the engine end.

Post by CovKid »

Whether you mount it in the rear (and not recommended for above reason) or the front, some part of the circuit is always going to have a long run if you think about it. The ideal spot (and VW didn't design the body that way) is to create a recessed 'box that sits right over the nose of the gearbox (ie you get to it under rear seat - dead centre) but it would be a cutting/welding job to accommodate it. On non-syncros theres a great deal of wasted space above the gearbox if you look under rear wheel arch.

Better really to improve the quality and secure fitting of existing battery supply cables. If theres a voltage drop for the starter from ignition, you could always fit a relay.
Roller paint your camper at home: http://roller.epizy.com/55554/" onclick="window.open(this.href);return false; for MP4 download.

User avatar
Oldiebut goodie
Registered user
Posts: 7500
Joined: 18 Apr 2008, 01:19
80-90 Mem No: 11135
Location: Eastern Angle

Re: Moving the battery to the engine end.

Post by Oldiebut goodie »

But they are already mounted in the rear on proper engined vans. :) (and it doesn't get wet)
1.6D 2019 VW T-Cross
200hp VW T6
1̶Y̶ ̶1̶9̶8̶7̶ ̶H̶i̶-̶t̶o̶p̶ ̶C̶a̶r̶a̶v̶e̶l̶l̶e̶
5̶0̶8̶d̶ ̶M̶e̶r̶c̶

getunder
Registered user
Posts: 1807
Joined: 20 Feb 2009, 19:14

Re: Moving the battery to the engine end.

Post by getunder »

Hi all thanks for replies. Does the Caravelle with rear mounted battery ever have this "will it start or won't it " syndrome which I have had in both of my vans so far for about 20 years despite following usual reccomendations.
Family got sick of me saying it on holidays.

User avatar
bigherb
Registered user
Posts: 2581
Joined: 27 Mar 2008, 13:50
80-90 Mem No: 5789
Location: West Kent

Re: Moving the battery to the engine end.

Post by bigherb »

Moving the battery won't cure anything, in fact it will make the wiring even longer, the power will have to come from the back to the front switches and then back again. Hot starting problems also happens to front engined vehicles it means there is a fault which needs to be fixed, poor connections, ignition switch or starter.
1982 Camper 1970 1500 Beetle Various Skoda's, Ariel Arrow

User avatar
horns
Registered user
Posts: 2170
Joined: 19 Apr 2009, 13:44
80-90 Mem No: 6743
Location: London

Re: Moving the battery to the engine end.

Post by horns »

bigherb wrote:Moving the battery won't cure anything, in fact it will make the wiring even longer, the power will have to come from the back to the front switches and then back again.

I think there would probably be relays involved, rather than running the starter voltage all the way to the front of the van and back.

Actually, I'm pretty sure that (in diesel vans at lease) the starter switch just powers the solenoid, and that makes the connection for the starter motor - the heavy starter current doesn't go through the ignition switch in any case.
1986 Westfalia Joker 1.6TD

User avatar
CovKid
Trader
Posts: 8411
Joined: 30 Apr 2006, 13:19
80-90 Mem No: 3529
Location: Ralph - Coventry (Retired)
Contact:

Re: Moving the battery to the engine end.

Post by CovKid »

As I said :D

For the work involved in rerouting it, you still need to replace/extend cables and might just as well fit heavier guage or make good connections. The nearest VW got to reducing distance between starter and battery was in the beetle, being only inches away. I've never had a problem starting. Good battery, good connections, there shouldn't be a problem.
Roller paint your camper at home: http://roller.epizy.com/55554/" onclick="window.open(this.href);return false; for MP4 download.

ally
Registered user
Posts: 17
Joined: 23 Jan 2006, 21:43
80-90 Mem No: 0
Location: Essex
Contact:

Re: Moving the battery to the engine end.

Post by ally »

I just replaced the cable and put a better earth in, job done. My Batts behind the drivers seat..

Locked