Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Nosebolt on July 31, 2012, 09:32:05 PM

Title: battery cut off, advice needed
Post by: Nosebolt on July 31, 2012, 09:32:05 PM
something funky is happening to the CJ electrics, fitted new battery today and was no different so by passed the cut off switch and all fine, so now have 2 questions…

what is a good quality cut off switch that won't require a mortgage?

what is the recommended wiring for a cut off? I've always installed it in the positive from the battery but reading up for recommendations for a good quality cut off they seem split 50/50 as to weather it should be fitted to + or -
Title: Re: battery cut off, advice needed
Post by: willo on July 31, 2012, 09:34:05 PM
stick it in the +ve and get a diurite 250 amp switch (http://gigglepin4x4-shop.co.uk/epages/eshop343529.sf/en_GB/?ObjectPath=/Shops/eshop343529/Products/%22Winch%20isol%22)
Title: Re: battery cut off, advice needed
Post by: willo on July 31, 2012, 09:35:43 PM
ignore that, is this for the car cut off or winch isolator?

If its for a car isolator, get one of these (http://gigglepin4x4-shop.co.uk/epages/eshop343529.sf/en_GB/?ObjectPath=/Shops/eshop343529/Products/%22Engine%20Kill%22)
Title: Re: battery cut off, advice needed
Post by: Nosebolt on July 31, 2012, 09:39:29 PM
that second type is the type currently fitted and fucked up, need a better quality unit, may try the Durite
Title: Re: battery cut off, advice needed
Post by: Cockney Boy on July 31, 2012, 09:41:56 PM
Bruce, if you can send me your address I have a spare heavy duty isolator switch I can send you as an early Crimbo present (same as the first link)
Title: Re: battery cut off, advice needed
Post by: willo on July 31, 2012, 09:43:14 PM
that second type is the type currently fitted and fucked up, need a better quality unit, may try the Durite

was the original a durite?

if it was a shitty copy theres your problem

did it have a resistor and no and nc terminals on it?
Title: Re: battery cut off, advice needed
Post by: willo on July 31, 2012, 09:46:57 PM
Bruce, if you can send me your address I have a spare heavy duty isolator switch I can send you as an early Crimbo present (same as the first link)

Is this a durite? if not beware, I have burnt out the cheap copy versions
Title: Re: battery cut off, advice needed
Post by: Nosebolt on July 31, 2012, 09:47:32 PM
Thanks CB, pm sent

yes Willo it probably was a shitty copy, but now I've had a problem it's time for my usual overkill  :003:
Title: Re: battery cut off, advice needed
Post by: IrishCJ6 on July 31, 2012, 09:57:38 PM
Just remember not to run the starter motor main electrics throught the switch, the current draw at cranking can fry the switch especially after heat soak on a V8.
Title: Re: battery cut off, advice needed
Post by: Nosebolt on July 31, 2012, 10:01:46 PM
recon thats what happened, was installed between battery and solenoid
Title: Re: battery cut off, advice needed
Post by: Dave69 on August 01, 2012, 08:59:04 PM
The starter motor is a direct feed and not good to isolate on this due to cranking load as mentioned. Have you looked at the manufacturers fitment location or msa location requirements. Can't you add its to the battery negative wire before it attaches to the earth
Title: Re: battery cut off, advice needed
Post by: Nosebolt on August 01, 2012, 09:17:23 PM
Makes sense Dave
Title: Re: battery cut off, advice needed
Post by: Dave69 on August 01, 2012, 09:24:34 PM
There are isolator terminals which stops battery drains but keep a low current connection for alarm and security applications. Tweeks might be your friendly place to starting searching
Title: Re: battery cut off, advice needed
Post by: Nosebolt on August 02, 2012, 05:21:10 PM
Nice one CB. Definitely a sturdy switch can't wait till the weekend to fit it :003:

Owe you one mate
Title: Re: battery cut off, advice needed
Post by: Cockney Boy on August 02, 2012, 05:35:05 PM
Birtys forever bud :)