Coolant over flowing (could be force induction related???)
 

Has N E 1 had a small problem with not over heating but having there coolant overflow tank filling up and splashing antifreeze over the place?
I can drive the car for miles, longest ive went was 80 miles and this was in rush hour traffic also, and the tank never over filled and everything was fine…..BUT….when I get on it hard, it seems to do this, yesterday I was making a short video and it was doing it bad, eventually the temp needle started to rise but would fall when I step off the gas.
Seems like a thermostat problem but I just replaced that 4 months ago…..could it be that the one I have is not opening quick enough, I think its rated at 180-190 degrees….and when I get on the car hard, the engine is heating up quick, so I just ordered a jackson racing 160degree thermostat.
Just wanted to know if anyone else had a similar problem before, thanks.

Also I know….ill post the video soon as its finished ;)

Re:Coolant over flowing (could be force induction related???)
 

take the thermostat out and see what happens. then its a straight flowing cooling system.

Re:Coolant over flowing (could be force induction related???)
 

Do you have a d-series motor by chance? I am guessing head gasket.

Re:Coolant over flowing (could be force induction related???)
 

no its an f-series (accord)
headgasket....i dont have any of the headgasket symptoms.
like i said i can drive it normally and its fine. only when i get on the car hard does it do it, but it still doesnt over heat, the over flow tank will just fill up.
the oils fine and the antifreezea fine.

Re:Coolant over flowing (could be force induction related???)
 

yeah im a try this also....

Re:Coolant over flowing (could be force induction related???)
 

The overflow tank filling up is a headgasket symptom. Trust me I had the exact same problem a few months ago, car would drive fine and never overheat, but the overflow tank was filling up. It only did it when I was boosting and then eventually it started doing it every time I drove it.

To check this take your radiator cap off and idle your car, hold the revs up until it gets hot enough for the fan to come on, if you see lots of little bubbles coming out your radiator it's your headgasket.

Re:Coolant over flowing (could be force induction related???)
 

damn...ok, im a try that, thanks man

Re:Coolant over flowing (could be force induction related???)
 

its either a headgasket or...like me, cracked sleeve :-\

Re:Coolant over flowing (could be force induction related???)
 

damn, how would i figure out if its the sleeve?

Re:Coolant over flowing (could be force induction related???)
 

Pull the head off.

Re:Coolant over flowing (could be force induction related???)
 

damn, thats the only way :(

hopefully its not that, im gona try the other stuff first, head gasket check and so on.....

---- >:(

to cold out to be f-n with this car
glad its not my daily

Re:Coolant over flowing (could be force induction related???)
 

well, i did the radiator cap test....no little bubbles.
also no mixture with oil.
also drove the car for about 40 minutes, let her warm up for about 20minutes.
she drove fine the needle went up a lil but not near the Hot mark.
it went up a lil then went back down, didnt go back up.
got home check the over flow tank and it was filled again.
but i also notice that the top rad. hose was HOT, while the bottom hose was COLD, also the top portion of the radiator was hot and the bottom portion of the radiator was cool. dont get me wrong but i dont think thats right, that explains why it boils over into the over flow tank, could it be clugged or a sticking thermostat???

Re:Coolant over flowing (could be force induction related???)
 

i had overheating problems, i flushed the radiator, new thermostat, new radiator fan switch, a big mess and it still overheated after i got on it hard a few times. i fixed it by stripping the radiator fan switch cables(it's the sensor that's on top of the thermostat)it has 2 cables. i stripped them without cutting, just pulling the plastic insulator on both cables back with a cutter and twisteing the cables together so the wires make contact with each other and then covering them with tape. this makes your radiator fan turn on constantly without stopping as soon as the ignition is turned on. this solved my overheating problem. i tried this without a thermostat and the car operated way to cold so i put the thermostat back in and now it's ok.

Re:Coolant over flowing (could be force induction related???)
 

Well the car doesn’t really over heat it just goes to the normal spot (between Cold and Hot) then once the over flow tank fills it will go up a little like ¾’s but then go back to the normal spot.
Plus like I said the top hose gets baking hot while the bottom hose is cold, and I mean cold.

also thanks for all the help folks.

im gona give the easiest thing a try first, which is change the thermostat, it my be broken (last one fell apart in the housing, spring and everything was hanging off)
Cause the car drives fine, I mean its been doing this for like 2 weeks, and the oil pressure and every things great, car drives the same way, no power lost, no hard starts no cutting off or anything. Did the head gasket tests, seems fine, thermostat test is a negative tho….dont kno about the sleeves, guess the last thing ill check. Can also try that thermo sensor, I had to replace that because the one before cracked, so I wired up another one, might have came loose, but ill see, its just cold as hell outside and I don’t feel like banging my hands and dealing with cold tools…lol

Re:Coolant over flowing (could be force induction related???)
 

i had the same thing happen to me on a all-motor D-series. I changed the radiator cap and it didnt help but changing the headgasket fixed it. Mine would over heat when too much coolant ran out of the overflow tank :(

Re:Coolant over flowing (could be force induction related???)
 

in order to check the head gasket you need to take the head off too :-\

Re:Coolant over flowing (could be force induction related???)
 

i had the same problem in the summer when i wasnt boosting, my fan wasnt coming on and my car would overheat, anyways i fixed the fan, the overheating stopped and my coolant tank stopped over flowing, shrug!

Re:Coolant over flowing (could be force induction related???)
 

Your water pump could be bad. That's what fixed mine. Temp needle would go up and down and up and down and the overflow was literally overflowing... Replaced the rad. cap and thermostat as well. Burped all the air out too and it runs like a champ. 8)

Re:Coolant over flowing (could be force induction related???)
 

well i found another issue....

while checking my thermostat and just messing around with things.
i notice (i start the car, had the cap off) that the radiator, right where the plastci top part (black section) connects to the fin section, there was a leak, it was small but....wasnt like ur regular leak.
i was more like a domino affect. one section would filled or leak coolant, then the next section would follow, then so on. so i change the radiator, thru in a 160 degree thermostat and now im wating for my 1.3bar cap, so we'll see what this does, if nuffin, then im just gona change the headgasket....anyone of u done or hear about double-n up on the head gasket???

Re:Coolant over flowing (could be force induction related???)
 

ok heres just a few thoughts.... if u say the top of the rad. is hot, but the bottom is cold(is ur bottom hose pressurized,what about the top one, is it pressurized?), then u might have a clogged radiattor. id try doing a compression test, try finding a different radiator or a new cap(i think u said u did or where going to try that). befor i took the motor apart.

Re:Coolant over flowing (could be force induction related???)
 

yeah it was the top hose and top portion of the radiator HOT, while the bottom portion and bottom hose was COLD.

then i noticed (last weekend...havent drove the car for about 2 weeks) the radiator issue.
so i swapped it with a new on (still oem type, now im just waiting for my 1.3 bar radiator cap to be shipped out. i ordered a moroso universal 19psi cap but it was to big to fit the radiator.
so im gona see how this goes once i get the cap in.

Re:Coolant over flowing (could be force induction related???)
 

gotcha

Re:Coolant over flowing (could be force induction related???)
 

I don't think that you should be putting in lower temp thermostats and higher pressure rad caps. You have another problem. Your car is not having problems because honda doesn't know what the ---- they are doing putting in a 180 degree thermostat and a 13 psi rad cap. Everyone else is running stock designed parts. You got other problems dude. Your car is made to run with a 180 degree thermostat and a stock I belive 13 psi rad cap. Changing these is not a correct fix. ;)

Re:Coolant over flowing (could be force induction related???)
 

yeah but honda didnt make the radiator and cap knowing 14 years later the car would be turbo charged....lol
but also member i said my radiator was f-ed up, so will see....

im just being on the safe side, if its not what ive fix/changed then hey it doesnt hurt that i did so.

i want to try to lil stuff first before i jump into the real deal problems. fixing the lil stuff and say if its not that but something major, might prevent it from happening again.

the head gasket and H2O pump i just had replaced like 1year ago with timing belt.
but if its something major, it'll be fixed, i just want to try the lil/easier things first.

might have been the radiator clogged. i might take it out today to see how its doing after switching the radiator.
cause like i said alway at the beginning of the thread, the car drives great, NO over heating just coolant over flow tank fills, and top hose/rad. hot, while bottom hose/rad. cold.
another guy i kno, same set-up (just different turbo) is having the same problem (same car also)

Re:Coolant over flowing (could be force induction related???)
 

I understand that you are trying the little things to fix it. I'm not trying to be an ass either. I do not believe that just because your car is turbocharged that it needs a higher pressure rad cap. I'm sure most guys on here are running a stock cap with no problems. Doesn't that tell you that the stock rated stuff is fine. Also did you have problems before with the stock rated rad cap and thermostat. It just seems like you are disguising the real source of your problems. Good Luck.

Re:Coolant over flowing (could be force induction related???)
 

i didnt take it as u being an ass man, no hard feelings ;)
im not beat arond the bush tho, like i said, if its something major, its still gona get fixed. its just to cold out here to be pulling your motor apart in the drive way...lol.
i already bang my hand up good pulling the radiator, its like working with ice cubes at the end of your wrist.
but yeah i notice others havent had problems but a lot of u all here are turbocharging just about the same motor, few people i know have turbocharged the F series.
yeah, i just finish my turbo set up like mid....November so i really just started driving it (its not a daily driver so it only sees the road like 8-10 miles every week-week n half)
but yeah man, i didnt get offended by your post (only people on HS would....lol)
i just take it as more support...
i just want to get this car right by next racing season, tracks open in March in my area

Re:Coolant over flowing (could be force induction related???)
 

i have the same problem.. believe me its the head gasket, you can see a bubble in the can when the car is iddleing at 800rpm after you run boost, you need a performance head gasket better cooper or brass thicker than oem mls.
you can drive your car for miles w/o boost but when you boost there is the problem!!

Re:Coolant over flowing (could be force induction related???)
 

Do they make head studs for an f-series motor? If you replace the headgasket you should install some headstuds at the same time if they make them.

Re:Coolant over flowing (could be force induction related???)
 

im not sure, i have to look into that....

thats the problem with having a f series (90 accord), they dont make a lot of things for our cars so we have to test parts from other hondas to see if they'll fit/work.
but a lot of prelude parts will fit accords (h and F).
but im a look into it.

Re:Coolant over flowing (could be force induction related???)
 

Come to think of it...when i did my head gasket change last february i used copper gasket all over the head gasket b4 putting it on. I wonder if thats the reason my motor isn't changing temperature no matter how much i boost or how hard i drive the car. And yours does...hmmm...

Re:Coolant over flowing (could be force induction related???)
 

well i did what i said i would and the problems still there, so im just gona replace the headgasket and spray it with copper before i install it.

its crazy cause the car drives like nuffins wrong, no over heating or anything and ive been driving it for miles, even racing mustangs and cadi's....lol

Re:Coolant over flowing (could be force induction related???)
 

I had that problem and it was due to air bubbles. Have you recently changed your coolant? Maybe you didn't bleed it well enough.

Re:Coolant over flowing (could be force induction related???)
 

how exactly do u bleed the system???
im still trying to figure that one out, ive heard this 3 times now. ???

Re:Coolant over flowing (could be force induction related???)
 

I just start my car with the rad cap off and let it idle for a while.

Re:Coolant over flowing (could be force induction related???)
 

Yea a bad thermo and rad cap can lead to a blown head gasket. Here is how I bleed my system, gotta be carefull. I like to drive the car or let it idle till it gets to standard operation temp then turn it off and let it cool a little, not to much. Pop off the rad cap, be carefull cause if it is still to hot it will spray. With the cap off start the car and watch the coolant buble and add as needed. You need to get the system hot enough for the thermo to open. A air bubble can get trapped behind it when you replace it if you don't bleed the system. HTH...Matt

Re:Coolant over flowing (could be force induction related???)
 

Do NOT get a higher pressure radiator cap!!!! that will allow the coolant to reach even hotter and possibly blow a hose! just remember the more radiator cap psi the hotter it'll get/hotter boiling point... stick with OEM recommendation!


also if you test without a thermostat... do NOT drive the car like this... it may run colder (lucky) or may overheat like crazy! there is a reason for the thermostat to close while even at normal operating temp.. the amount of air hitting the radiator will cool down the coolant, well if your running no thermostat then it won't have enough time to cool it down.. see what i'm saying??

my suggestion since this is a question... bring it too a well known shop

Re:Coolant over flowing (could be force induction related???)
 

im not running without a thermostat

but i bleed the systems a while ago...the f22 has a bleed valve/bolt on the thermostat housing, so i bleed it and bubbles came out for like 1 minute.
ill see if if helped tomorrow

Re:Coolant over flowing (could be force induction related???)
 

Just seriously bleed the living ---- out of it. I took the cap off and let it idle til it warmed up and at op. temp. revved the ---- out of the engine until all the bubbles were gone.

Re:Coolant over flowing (could be force induction related???)
 

i heard some more info on superhonda...

the boosted sohc (not all) have this problem due to the cylinder heads lifting a lil during boost

any views on this....

Re:Coolant over flowing (could be force induction related???)
 

+1

---- the bleed screw.