Effects of overheating..
 

A little more than a week ago I overheated due to my radiator fan fuse blewing and being in the city.. i believe my coolant temp topped off at 265.

I've now been seeing my water temp at 110c in the city lately.. a bit worried. (it's been 90+ these last 2 days but it's been running hot since it overheated..) Before the incident it would not go above ~101c even in the worst of days, but the weather wasn't as hot as its been lately.. so...

Could it be the new coolant mix is THAT less efficient? I haven't done a full flush just topped off what purged when it overheated

I also noticed that when the car is 100c+ and I have the A/C on the A/C compressor clicks on and off every few minutes or so and I get a rough idle to accompany the click...

Suggestions, what to look for?

I believe if the water temp hits a certain point the A/C will automatically shut off

Ah.. that might just be it then.

But why am I getting so damn hot though!? :(

edit: reworded my main post

265 ?????? Im very shock that ur engine is still alive !

Well. seriously I think u should recheck ur cooling system completely b4 u hit the road again. shit I mean its 99 degrees out there right now. I dont think u should drive out like that.

yeah.. 130c.

I'm hoping its just a bad coolant mix since a crapload of coolant overflowed and I topped it all off with water that the PA dudes gave me

Later in the day I added a bit of coolant to top it extremely off that Chrism spared..

I know I know. if it was 265 Celsius , ur car should've blown up already.

but still, that is just Crazy hot and there could be certain damage to your engine. at least its not very healthy in the long run.

U better find out why is it happening b4 u drive again.

I already panic when my car was going over 100 Celsius last week. after countless hours of hair and time lost. finally found the problem to be the coolant overflow tank, the tab to hold the Radiator cap is broken, thats why its not holding pressure. Oh you might want to check that too.

nycgps, I edited my response as you replied :)

and to answer your other question in the other thread.. im around 27th ave and 1st st.

you living close by the waters right ?

go down and check the coolant overflow tank first. I think when the temp gets too hot it might blow the fan's fuse too.

Yep, right by the water.

Will do, was messing around with my intake this morning and didn't notice anything in particular.. I really wanted to get at my fans but it was too freaking hot and humid out that I didn't feel like taking apart my intake/battery/etc.

you dont really need to take anything out, its easy to spot.

if your system builds pressure. when your engine is at *operating* temp, put a piece of cloth on your radiator cap and open it(be careful), if there were no air in the system and the cap was holding pressure, you should hear a zZZzzzzz sound as the pressure in the system is trying to escape.

but if u do not hear anything, something is wrong, and its time to find out the cause.

I'd suspect air in the system. If you lost a lot of coolant, then just topping it off isn't enough. You need to go through the process for bleeding all of the air out. You should be able to find that somewhere on the site, or it's likely someone who knows will post it.

Just to be gloomy - on a conventional engine overheating can lead to a cracked block or blown head gasket, which often is a cause of future overheating. I presume something similar can happen with a rotary. But start by purging air from your cooling system.

Ken

For a Rotary, the "overheated" crack will most likely start at around the spark plug holes. then it will slowly spread until of course, coolant runs into the engine.

is pretty easy to bleed air out of the system, park at the steepest incline you can find in your area. then just top it off to full, idle at 3000~ rpm for couple of minutes. let it go. let it cool off a bit, then do the same thing again.

after that, check and see if it has pressure (by removing the cap, remember, cover it with a piece of cloth b4 u do so in case the water splash around, u will not get burn)

Gloomy = :tear:

I went out and found my coolant level at less than 3/4 of the overflow resoirvirs capacity... so I went ahead and filled it to the 'F'.. we'll see if that does anything.. or if it's indicative of a leak somewhere :(

about the pressure being released.. I took the cap of when the car had been off for about 2 hours, as I turned it I heard like a "ZUUUP" but it was like 1 second and thats it.. not a "HISSSS".. ill try tonight after a drive.

al

Check your fan fuse. If its blown, one or both of your fans are junk. Good luck with the repair... i just got done with mine.

I'd think twice about removing the radiator cap when the car is hot. The sudden loss of pressure can cause the coolant to flash-boil and spray out with force. Not a pleasant experience. Yes, you can try to do it partially and slowly but it's still risky. In this case, "being careful" means not undoing the cap. There are other ways to check the pressure that don't involve blindness or losing the skin off your arms! -- imho.

thats why I will put a piece of cloth over it.

Its the quickest way to tell if its actually holding pressure - without the tools :lol2: :lol2:

Just letting the car idle in ~85 degree weather it went up to 215f until I shut it off.. I'm sure it would just have gotten hotter and hotter.

I also noticed that the fans do NOT stay on when the car is over 210+.. the fans just shut off about 5 seconds after I pull the key out.

I'm thinking there is definitely a problem with my fans.. would explain why the fuse blew twice last week.. both resulting in overheats... and now the car runs hot.

Planning on taking it to Wayne Mazda Monday or Tuesday.. hopefully it's an easy fix and its just a crapped fan or something. :(

what time r u gonna go Wayne Mazda?

Manhattan Mazda deny my Coolant overflow bottle's Warranty claim, cuz he said he cant send the part back to Mazda like "this", my ass, the bottle broke on its own, and he said this is not "Manufacture defect", yeah ok, no one else had a problem like mine, I am special or something?

I ordered a new bottle from Paul and its coming in today. Im planning to take the broken Bottle out to let other dealership to *see* it. Maybe we can meet up ?

I'm probably heading out Monday morning.. maybe 8 or so.

I'm a bit worried now, I don't know if it's me but I'm feeling some power loss at WOT... :(

I really hope that one major overheat didn't crack the block.. I'm wondering what the dealership would say if it did...

Im seeing a lot of 100+ Celsius water temp as well.

Ever since I decided to swap coolant About 2 months ago. :(

Im gonna try to bleed it tomorrow. gay :(

In 80f weather the hottest it has gotten without the A/C is 220 and with the A/C 235... and this is in stop and go traffic for miles. It's usually 215 or so.

The car is at 180-190f when cruising on the highway.

I don't know if this is normal or not since this is my first summer with the car.. perhaps it is?

So my first day off that I have had to work on my car intensely..

I took off the battery box and the lower intake assembly to reveal the fans..

low and behold a freaking RUBBER GROMMET was all up in the right fans fins.. the fan was stuck stiff. The grommet was wedged in there pretty tight.. finally got it out though. However it seems that the fan is irreparable.. no doubt to the rubber grommet straining it. It's very jerky/stiff to move by hand compared to the other fan that spins at will.. So to the dealer tomorrow morning to get my radiator fans replaced..

So that is that :)

i told you it was one of the fans!!!!

SEBASTIANNNNNNNNN YOU SUCK!

ECUADOR VS ARGENTINA TODAY SUCKERRRR, YOU WILL LOSEEE!!

jajajajjaja:lol:

but the thing is that, both my fan works and never had a blown fuse.

Now Im thinking is the Koyo Radiator the cause. I used to have Racing beat flash which lowered the Fan on Temp by like 10 Celsius. but ever since MSP16 ... my flash is gone. Water Goes up to 105 Celsius just today. I cant imagine what will happen Later this summer.

Hmm .....

I have 2 options, Go back to Stock, BHR or Mazmart.

Stock is not possible, cuz I broke mine when I tried to remove it. new one gonna cost 300 something. Not worth it.

BHR and Mazmart both sounds promising to me.

Both price about the same.

Its kinda hard to decide ...

So what I did was I toss a coin.

Head goes to BHR, Tail goes to Mazmart

and ...

I had read that the Koyo radiator was not worth it..

Did your coin not drop on a face?! :)

I will see the outcome tomorrow.. I hope Wayne has these fans in stock and can do it then and there. I also hope that is all that is wrong. While I'm there I'll have some other TSB's taken care of and possibly try to get some seafoam action.. :)

you don't wanna tell me the score of the game???

omg, i told you it was tied!!

tied??

tied, 1-1 is final score

I dont think they will have it in stock.

How long are you staying there till ? if I am early I might as well drive my car over to Wayne to see what sup.

For the coin thing, hmm, I pmed the winner already. hoho ~

4 hours later I have a new fan assembly in there. Yumm. I really need to get around to doing that coolant flush now since its still disproportionately water from the first time it overheated on me.

Dealer also ordered both headlights due to haze. No questions asked. But I forgot to bring up my broken glovebox.. grrr!

How awesome are these guys at Wayne. :)

wow, they actually have the fan assembly in stock? thats pretty impressive. Consider those are not the *usual* stuff to fix.

ur headlight is fogging up ? One of my headlights are fogging up too. :( maybe I should bring it in ?

when will u go back there for the headlights ?

you could have also fried your thermostat. They are a heat sensitive instrument that if superheated may not work to its spec. If it's spec it to open at 90c (or whatever) and you heated it to 260c it may have warped or cracked. Hopefully that is all that is wrong. T-stats are like $20 and take about 20 min to install. Make sure you flush the system afterwards, fill and bleed it, as well as adding something like WatterWetter (I swear by the stuff). My rx8 and srt4 both sit at 180f even after LONG trips or hard driving. During the summer I run distilled water and the wetter and almost NEVER get above 180f even with the ac on driving in heavy traffic.

It's not really fog, it's like a haze thing. Looks like the plastic is bad.

Not sure, they'll give me a call. I didn't even think he remembered about it because I mentioned it way early in the morning and he said he would look at it. Then he comes out and says he went ahead and ordered both headlights. No questions asked. Under warranty. He = Gary (service advisor).

Don't know if you read the last few posts or not but I found my problem: jammed radiator fan and it was replaced this morning by the dealer. :)

As for the temperature since then I have maxed out at about 210f in stop and go. That is probably due to the coolant mix, need someone to give me pointers on how I should go about draining (only radiator or entire engine?) and what mix to go with.. lots of info.

hmm, I will give them a call tomorrow and ask them about the headlights and coolant bottle then.


I keep mine at about 50/50 for now cuz I dont have the time to play with the mixture. but we can use about 40/60 (coolant/water) without any problems.

Do you flush the radiator only or the entire engine? I know I will suck at trying to get the mixes correct.. perhaps you can help me out sometime? Will compensate.. :)

I've tried both method. but the last 2 times I just did the Radiator Flush, cuz Im LAZY :P

When I get my new Radiator, I will do the complete flush.

Is not hard to get the mixture correct, its pretty simple math :)

Just buy a gallon of 100% coolant, and 2 gallon of Distilled water (I found some in Pathmark for like 99 cents each)

if u just do Radiator drain, it probably take a bit less than 2 gallons of coolant, so after u drain ur coolant, just pour about 3/4 gallon of coolant into the rad first, if u have water wetter add it in after the coolant, then pour the whole gallon of distilled water into the tank. It "should" be about right.

Save the other gallon of distilled water and the last 1/4 gallon of coolant to top it off. if u want more freezing protection, u can use a syringe to suck some liquid out from the bottle and put more coolant into it, or put water if u want more cooling for the summer.

I can come and do it for u if u have the tools around (like a jack and 2 jack stand, and a normal size phillip screwdriver) , I can bring them over if u dont have them. u dont need to pay me :P (but u must have ur own coolant ... and water ... LOL !)

Hmm, hell if u want we can actually do the more complete flush, just buy a couple more gallons of distilled water, take everything out and start pouring it from the upper thermostat ... maybe I should do that when my new radiator comes :)

(Its time to ebay my soon to be OUT Koyo Radiator .. lol !)

how much water wetter am I adding?

ny: so who won the coin toss? don't hold out on me now...

The whole bottle.

when u do it, make sure u peel all the protective seal out, cuz one time I left some of them on, when I pour it, it came off and almost felt into the bottle, lucky it was stuck at the top and took it out when a clip ... phew.

Use ur power, u're a Jedi :lol: :lol:

tell Paul I said 'hi'

You reckon I could find some WaterWetter at Pep Boys? Need something local, don't want to deal with getting it shipped atm.

al

The force is with you. lol !

Yes u can get them at pepboys.

Autozone just start selling it for 9.99 each. I think pepboys is like a buck cheaper. dont really remember.

I got some of mine at like 7.50 online, but I ordered it with a bunch of stuff so it was like about 8 bux each.

Sweet, so I'm going to be doing this on Sunday.

2 gallons of distilled, 1 gallon of 100% coolant, 1 12 fl oz bottle of WaterWetter, good?

al

1 Fl oz? ....

1 whole bottle is what ya need. :)

Well, u can get another bottle of 100% coolant just in case. if u dont need to use it, just store them in ur basement or something. its good for a long time.

er, I meant 1 12fl oz of WaterWetter :spank:

I think My Cooling Fan #2 is running slower than it should, when its turning I can see the blur, and when I turn it with my hand, it feels kinda hard, just not as smooth as the Fan #1.maybe I should get a multimeter to test it.

when you were at Wayne Mazda, did you just tell them that "oh, my fan is broken" or what ?