Board logo

timer relay?
beaver34 - 29/1/15 at 05:21 PM

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!

loggyboy - 29/1/15 at 05:43 PM

A simple 555 timer circuit from ebay to trigger a relay would likely suffice?

bi22le - 29/1/15 at 06:09 PM

Cheap turbo timer?

beaver34 - 29/1/15 at 06:40 PM

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

gremlin1234 - 29/1/15 at 08:18 PM

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

Barkalarr - 29/1/15 at 09:50 PM

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.

beaver34 - 30/1/15 at 08:59 AM

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

loggyboy - 30/1/15 at 09:14 AM

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.