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Author: Subject: timer relay?
beaver34

posted on 29/1/15 at 05:21 PM Reply With Quote
timer relay?

i run a small water pump that helps cool the turbo, i run it when the engine is running and would also like it to run on for say 10 minutes after engine shutdown so i dont cook the turbo bearings

anyone know if i can get a timer relay to do this and if so which on?

thanks!

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loggyboy

posted on 29/1/15 at 05:43 PM Reply With Quote
A simple 555 timer circuit from ebay to trigger a relay would likely suffice?





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bi22le

posted on 29/1/15 at 06:09 PM Reply With Quote
Cheap turbo timer?





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beaver34

posted on 29/1/15 at 06:40 PM Reply With Quote
quote:
Originally posted by loggyboy
A simple 555 timer circuit from ebay to trigger a relay would likely suffice?


will that work if the relay has power before? or would i have to activate the timer once ive shut the engine down

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gremlin1234

posted on 29/1/15 at 08:18 PM Reply With Quote
there are timer relays available off the shelf
not cheap at £30 + postage, but just plug in, instead of a relay
http://www.ebay.co.uk/itm/12-volt-10Amp-Adjustable- TIMER-relay-ALT-ADJTIMERRELA-/140756974528

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Barkalarr
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Posts 943
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Building: Caterham R300, Caterham Roadsport,Indy R1,Indy Zet

posted on 29/1/15 at 09:50 PM Reply With Quote
I've got one of these I bought to only have my heated front windscreen on for x amount of time.
It's kicking around in the garage if you want it?
Just make a donation to the MS society.

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beaver34

posted on 30/1/15 at 08:59 AM Reply With Quote
quote:
Originally posted by Barkalarr
I've got one of these I bought to only have my heated front windscreen on for x amount of time.
It's kicking around in the garage if you want it?
Just make a donation to the MS society.


yeah that would be great

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loggyboy

posted on 30/1/15 at 09:14 AM Reply With Quote
quote:
Originally posted by beaver34
quote:
Originally posted by loggyboy
A simple 555 timer circuit from ebay to trigger a relay would likely suffice?


will that work if the relay has power before? or would i have to activate the timer once ive shut the engine down


555s are quite flexible, I suspect it would be easy to wire so you have a trigger via ignition, and another that set the timer the moment the ignition is switch off.





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