RixRotary7

My 1988 Turbo II, as many of you know, is having some problems. I am having a very hard time starting it. The engine turnes over, but will not start. Once I get it to start, it is a beauty. But ever so often I get this engine coolent reading and a anoying buzzing. So I went home and once I opened my hood, I heard this girgling noice where the raidator hose is. What is this? Then I let it set for a while and opened up both holes where you can add coolent and when looking at the one on top of the raidator, I noticed there was not much coolent in there. So I filled it and I then looked in the other hole and there was not really any coolent in there. So I added some. Before I even added any coolent, I noticed that the overflow tank was so full, it was almost leaking over. Some even did because it was a bit wet at the bottom. I drained it to where it would register at "full" on the side of the tank and closed the hood. I went out for about 5 hours and just at the end, I started getting that annoying buzzing noise again. After comming back home, I looked under the hood again and my overflow tank is full again. What is going on? Could this be why my car is not starting? Thanks for your time.

theonlygreat

does your overflow tank have a hose that goes down to the bottom (or close to it) inside? if it does then you may want to look into new caps for your 2 fill spots.

RixRotary7

I was wondering if I could have an air bubble in the system

theonlygreat

to remove air bubbles, remove both caps while filling it with water/coolant if you don't have a breather valve/hole thing (stock location on s4 is at the top radiator hose connection on the radiator, looks exactly like a drain plug). otherwise open the breather hole while filling it. then run it until it gets warm, then wait for it to cool to release pressure and fill it some more.

i'm not sure if that would make you system not suck the coolant back out of the overflow though.

AlmostRice

This sounds like my problem on my vert. Overflow tank full, air in radiator no matter how much i add water here, and DAMN buzzing of the low coolant buzzer.
I believe its your coolant seal. I believe the hard start is because of water in the combustion camber. Also my spark plugs were contaminated and needed replacement. I assume it had something to do with the coolant loss.


If this is your problem, my solution was the to use the block seal. Here is a link
Coolant seal repair

I have used this repair 6 months ago and the vert is still running strong. Hope this helps.
I believe the only other repair is to rebuild the engine.

2nub_2stupid

replace ur pressure caps

i had the same problem and it eventually split my coolant line in half. THe problem was the pressure caps weren't holding any pressure so the buzzer always kept on going off. But if u r going to drive with the buzzer keep an eye on the temp gauge.

yearrgh

It could be quite a few things, the worse being a blown coolant seal. Does it spit out a cloud of white smoke on startup? If so you have a blown coolant seal.

Try this: When the car is cold, make sure the radiator is full to the neck and leave the cap off. Take out the 2 fuses closest to the engine then turn the car over and watch the filler neck. If you get a geyser, you have a blown coolant seal.

After that, make sure its full again, replace the fuses, but still leave the cap off. Start the car and look in the filler neck. If you get a constant stream of bubbles coming up through the coolant then you have a blown coolant seal.

If not, replace both radiator caps and check all your hoses. Make sure the filler neck isn't damaged where the seal on the cap presses down. It might help to do a pressure test on the coolant system, or take it to a shop and have them pressure test it.

J-Rat

iTrader: (2)

http://www.aaroncake.net/rx-7/cooling.htm

Jarrett

RixRotary7

It is strange because once I drive the car for a while, the buzzer eventually goes off but after comming home and looking under the hood, I notice how there is a girgling noise neat the raidator and there is a lot of coolent in the overflow tank. Opening the top coolent hole (one almost on top of engine), it seems like there is very little coolent in there. What is going on? I am not getting a white cloud of smoke at startup if this helps.

yearrgh

It's good that you don't have white smoke, but neither did mine for months, and it only got it once in awhile before it caught on fire. The fire was unrelated, don't freak out.

Do the tests and get back to us.

Digi7ech

iTrader: (1)

OK, This happened to my GTU.

Don't worry about a bad engine yet.

Do this test.
1. Take the filler cap off(highest up/closest to engine)
2. Turn the car over and if any coolant starts spewing out quickly then it's a coolant seal.

If it doesn't come flying out but just slowly rising then don't worry about a bad engine now.

It turned out to be a bad Radiator cap on my car.

After a drive I would park and like 5 minutes later I would come out to see a puddle under my car and no coolant in my lines but a full resevoir.

Just go buy a new cap from checker or somewhere and put that on.

--to bleed the system.--------
1. take off both rad caps and slowly fill it up(using highest /closest to engine one).
2. once it starts coming out of the radiator one put the cap on but don't tighten it.
-Let some seep out until there are no bubbles from that point.

3. Continue to fill it from the filler hole until it reaches the top of that.(if you have the bleeder screw undo that to help bleed)

4. I then cap it off and squeeze/pump the radiator hose at the bottom of the Rad. to help get any bubbles to the top.
5. I then pump/squeeze the top rad hose to get the bubbles to the filler cap.

6. Remove the cap and squeeze the rad hose until the fluid level is as high as the the cap.Then slowly pour in as you release the hose so it doesn't suck in any air.

7.Cap it off and turn the heater on and run the car for a couple minutes.

8. Repeat from either 2 or 3 to 7 depending on how much air was still in the system.

It's pretty thorough but it eliminates almost all air in the system the first time.

Hope this helps you. I got a good scare when this happened to me and people were saying a bad coolant seal.