Coolant flow???

[POPEYE]

I've a bit of an urgent question regarding the coolant, can anyone tell me which way the pump pushes it? i'm thinking it's pushed out the lower connection that goes down to the bottom of the rad, but need to know for sure, cheers Ian

[stormforce]

I've a bit of an urgent question regarding the coolant, can anyone tell me which way the pump pushes it? i'm thinking it's pushed out the lower connection that goes down to the bottom of the rad, but need to know for sure, cheers Ian

hiya.in the top hot and out the bottom cool

[POPEYE]

hiya.in the top hot and out the bottom cool

Right so was i right then? reason is i'm fitting that 24volt pump in the line so i'll need it to pump "with" the flow and not against it,
If i fit it so the inlet to it comes from the bottom hose ya reccon that'll be ok,
cheers Richard,
BTW try'd the pump in a bucket of water on 12volt and it dont pump half bad, not to fast and not to slow,

[POPEYE]

No that cant be right, i'm wrong there i think, did you mean the rad? flows in the top and out the bottom?

I'll leave that bit of plumbing free till the questions had time to air, doin me head in this!

[NiftyNev]

The water pump sucks the water from lower radiator and pushes it through block and head then out through thermostat housing.

Aren't you supposed to remove mechanical pump if installing an electric.

Just my opinion, but I wouldn't touch an electric. Others have and reverted to the good old fashioned mechanical.

Nev

[NiftyNev]

24volt pump

????

Nev

[POPEYE]

????

Nev

Cheer's Nev, yup i know it sounds wacky, let's say i aquired this pump in the past, would have preferred a 12volt but there it is, thought i'd make use of it, like i say i try'd it in a bucket and it does work ok, probably half speed but good enough for my purpose's, i've fitted an alloy rad where the air con one once was, and i'm in the process of plumbing it into the existing system, the idea is to give a little extra rad cooling area and thought this pump would help shove the water round, sort of help out the mech pump, for the moment i'm just going to run it through a relay and on to a switch in the cab so i can turn it on when the systems got hot enough (stat opened), also fitting the air con fans on top of this extra rad, all being well this bugga should be cooler han the other side of the pillow If the unthinkable happens and it's too cool i can turn off the fans/pump and at worst replumb it back to stock,
just have to watch it closely for a while,
So if i fit this pump pushing back to the engine (fed from the lower rad ) it's going in the right direction?
Originally thought of this as we used to fit em to busses to help out the vehicles own engine pump, to get coolant to the front (demister/heater) the engine 's pump was'nt quite making it, drivers complained it took too long to get heat up front, there good pumps, had one running the fish pond filters for years and it was still going when i changed to central heating pump, (no more battery charging)
Ian

[dieselboy]

????

Nev

you could go 24V i think even though our surfs are 12v, by connecting the batteries in series and the pump between the 2 earths
BUT i think this will mess up the rest of the electrics??????
i cant imagine what would happen.
just thinking: if there is less resistance for electicity to go to the next battery and then through the pump, then i think it would rather go that route than go through the car. but its been years since i was at school!

[POPEYE]

Yeah been wondering if it was possible to take a 24volt supply from both batterys without frefkin up the rest of it, i have done it before to get a motor started, certainly makes the starter whip round but does tend to blow anything else thats switched on, however the pump works fine on 12 so we will see

[dieselboy]

Yeah been wondering if it was possible to take a 24volt supply from both batterys without frefkin up the rest of it, i have done it before to get a motor started, certainly makes the starter whip round but does tend to blow anything else thats switched on, however the pump works fine on 12 so we will see

i dont know enough to try and work it out sorry mate.
but i know in microelectronics there are things called diodes to stop current going a certain way but dont know if anything exists for something larger (and if something like that would be any use)
how about a transformer type thing thats powered by one of the 12v's ?the only thing is because the voltage would of increased from 12 - 24v the current would of dropped. how much does your pump need in amps? but with current ive been led to believe it the device will suck as much as it needs (now ive just confused myself)
eg, if your device is 24v @ 1A then as long as you give it 24v @ >1A your fine. so you could have a transformer that outputs 12V @ 100A and it would be fine because it would only draw 1A

[drcrippen324]

you are corect it the way you are thinking ie you need a transformer that is equal to or slightly higher than the current draw of your device if you have a device rated at 24v 1 amp then you can happily run that from a transformer rated at 24v 1.5amp or above