ursmokd

I have an 88 FC SE, and i bought a used radiator off of an 86 FC.
There is no filler cap on the new radiator, but there is one on the old radiator that came with the car.

is this going to be a bad result in the future?
Do i NEED a filler cap on the radiator?
Can I use this radiator?
It seems that the 86 FC apparently can run without that filler cap. Can mine?

Any help would be appreciated.

thank you

danegerous

iTrader: (10)

there should be a cap on the water neck, I'm pretty sure you can run that radiator aslong as you have that where the upper radiator hose meets the front of the engine.

texFCturboII

iTrader: (17)

You need to have a filler cap.... either on the rad, or on the water neck. As long as you have one you will be fine.

ursmokd

how do you bleed this radiator? or cooling system??

ursmokd

radiator is stone cold after we started it up, and the heat started rising, so we killed it right away.
do you have to bleed these things?

eage8

iTrader: (9)

you're not answering anyone's questions do you have a filler cap on your water pump neck?

also, I would probably replace your thermostat, it might be dead.

ursmokd

thermostat was just replaced, and yes there is a filler cap leading to the top hose. and that long *** neck haha

texFCturboII

iTrader: (17)

just turn the heater on when you fill it

ursmokd

does the car have to be running when i fill it, and also turn the heater on while doing so?

texFCturboII

iTrader: (17)

it doesn't have to be running, but sometimes you can get an airbubble in the heater core.... running the heat helps there.... it also helps to fill from the highest point on the coolant system.... like the filler neck!

ursmokd

ok i will try this in the morning. thank you

danegerous

iTrader: (10)

also while the car is running massage the radiator hoses you should see bubbles come out

texFCturboII

iTrader: (17)

yea.... massage those tubes baby! FEELS GOOD!!!!

pfsantos

iTrader: (1)

Warm the engine up with the cap off. Don't worry about the cap on the rad. Make sure the caps and thermostat are OEM. Have the logicon (heater control) temp slider to warm, to open the water valve (listen for it moving), and avoid air pockets.

Tip. You may want to fill the engine side up to the thermostat with it off, then install thermostat. Sometimes, if the coolant doesn't reach the thermostat, it doesn't open soon enough after replacing coolant. Also, make sure the thermostat has a little vent hole and jiggle pin to let air escape. Also when filling, loosen the bleed plug near the top neck of the rad to let air escape. See FSM for orientation of the vent hole in the thermostat (link in my sig.). I have also posted pics about this...will look for it.

pfsantos

iTrader: (1)

https://www.rx7club.com/showthread.p...rmostat+jiggle

Let us know how it goes...

ursmokd

so the thermostat i got, doesnt have the "jiggle pin", but the car runs cool.
however i need to put a better gasket on because its leaking a little ffrom the thermostat. *sigh*

on another note, this radiator I got off the 86 FC, doesnt have the pressure cap on the radiator, therefor it doesnt have an over flow tube. WTF??

what am I supposed to do about the overflow??
and why it idles so weird, i have no idea. until its warm.. then idles fine.

danegerous

iTrader: (10)

I bet the car you grabbed the radiator from has the water filler neck piece where the cap goes with the nipple on it for the overflow. I think I've seen that before

ursmokd

craaaaaaaap

danegerous

iTrader: (10)

you're in orange county? I see fcs on craigslist for cheap especilly broken ones. Some for parts, off someone $20 bones for their filler neck if its the right one else offer some 40 for a radiaotor WITH the cap on it and sell the one you got. I's help you out brosef but all my na goodies are gone

ursmokd

ya im in OC.. but the car is in AZ, so its kinda hard to get parts to it, etc. paps is the one doin all the work on it. lmao