B18c water pump

[locote]

Ive got a question.
Is a B18c water pump designed to only work properly with a B18 radiator???
reason i ask is that ive used a stock civic radiator and a alloy aftermarket one and the temp keeps creeping and creeping up to 100+ when driving but if the leave the car idling the temp doesnt move (up or down)
and even with my Integra radiator the temp stayed low 90s high 80s( and that radiator leaks)
the stock eg radiator doesnt leak and the alloy radiator is brand new.
Ive used just dist water and coolant aswell and same results..

My theorie as stupid as it may sound is the water pump moves the liquid too quik throught the smaller radiators and doesnt give it enought time to cool down, and maybe thats why when the car is stnding still if stablelises, and the temp stays lower with the integra radiator because its bigger and it takes longer for the liquid to run throught...

Is my theory correct or is there another explanation.. has any one enqauntered this wierd prob???

[ACTI0NMAN-1]

you could be suffering cavitation. where the water pump spins too fast to actually push water.

didnt you have a DA9?

[locote]

nope...
I had a DC2, now a EG with a B18c.

Im stumped i cant work out why the smaller radiator that thicker and new doesnt cool at all...
What can i do get a B16a pump???
will it fit a B18c

[ACTI0NMAN-1]

no, the b18c should be fine. It flows better than the non-vtec designed b18a pump. Unless the new radiator is creating back pressure or a flow thats avoiding the use of the whole radiator. As in the coolant isnt flowing arround, its just streaming from the inlet straight to the outlet of the radiator, if that makes sense.

[locote]

its not fine but, the temp creeps up and up specialy on the freeway..
but it doesnt move when u stand still..

[ACTI0NMAN-1]

i'm all out of ideas

[bennjamin]

a cars cooling is more so Dependant on the coolant used and thermostat - not the radiator. Check your coolant - is it OEM ? Is it properly flushed / no air bubbles ? Thermostat OEM ? old /

[locote]

New oem thermostat...
distilled water is used on both radiators..
i squeezed lots of air bubbles out of it as i topped it up..
exacly same process was done for a 3 radiators and the old integra one still keeps it cooler than the new alloy one...
B16a and B18c water pumps and not same i just had a browse on the net..

[Rasputin]

distilled water AND coolant, right?
Not just straight up water?

[bennjamin]

New oem thermostat...
distilled water is used on both radiators..
i squeezed lots of air bubbles out of it as i topped it up..
exacly same process was done for a 3 radiators and the old integra one still keeps it cooler than the new alloy one...
B16a and B18c water pumps and not same i just had a browse on the net..

distilled water ? You are mixing with proper stuff at the proper ratio ? Best to use premixed from honda ( type 1 or 2 ) IMO.
Squeezing air bubbles out does NOT remove all air trapped inside the system.

Do this ~ properly bleed the system.

Empty your coolant resevoir and fill it to the upper level with fresh coolant .Take off your radiator cap ( cold) and turn on the car , slide the fan to HOT. Let it idle UNTIL the radiator fan comes on 2-3 times and then shut off. This should sufficiently remove all air bubbles from the cooling circuit.
Dont forger to put the cap back on once it cools down abit
check the coolant resevoir the next morning and top it up if needed.

[locote]

19200-P72-013. B18c water pump number
19200-P30-003. B16a water pump number

the timing belt for b16a is also different it has less teeth (spins less)

[locote]

HEy ben ill try what u just suggested i hope it works,
or ill be getting a integra radiator and sell this civic on..
But the water pump spinning faster would make a difference to