What are the chances i blew my coolaht seals / cracked an iron
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What are the chances i blew my coolaht seals / cracked an iron
For a little while now I've had a coolant leak from the top of my radiator that I've just kept an eye on and added coolant while needed. I've been aware that I have to replace it but being a broke college student. Not that easy. Plus it's been very cold out here so the temp stayed normal. Driving home I noticed my temp gauge rising and sitting at about middle (I have a series 4 and this is way above normal) I pulled into my driveway turned it off and popped the hood.
My overflow tank was making a gurgling noise and so was the engine... Possibly because of boiling coolant? Which is odd because I'm running a premixed 50/50.
I let it cool down a bit and turned it back on to pull it down my driveway.
No white smoke out of the exhaust. No hesitation to start. Just coolant buzzer and that's it.
The gurgling sound is what's bothering me... How would I know if I messed something up bad? And yes I'm ordering a new alum radiator as well as silicone hoses tonight
My overflow tank was making a gurgling noise and so was the engine... Possibly because of boiling coolant? Which is odd because I'm running a premixed 50/50.
I let it cool down a bit and turned it back on to pull it down my driveway.
No white smoke out of the exhaust. No hesitation to start. Just coolant buzzer and that's it.
The gurgling sound is what's bothering me... How would I know if I messed something up bad? And yes I'm ordering a new alum radiator as well as silicone hoses tonight
#6
Sharp Claws
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gurgling can be boiling in the system or it can be air being pushed into the overflow tank. if the overflow tank is getting just air from the radiator that's usually the sign i look for for failing coolant seals, as air has to come from somewhere.
if there is no air being pushed into the overflow and just the cooling system is gurgling internally then find a radiator and stop driving the car. an air pocket can cause overheating issues and cause failures just as easily as age.
if there is no air being pushed into the overflow and just the cooling system is gurgling internally then find a radiator and stop driving the car. an air pocket can cause overheating issues and cause failures just as easily as age.
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About middle on an S4 gauge is only around 90 degrees. Not even close to overheating. 90 degree is lower than I typically set cooling fan turn on points.
If you have any leaks in your cooling system, the boiling temperature is much lower due to lack of pressure. So you will get all kinds of gurgling and boiling as hot spots form and the bubbles make their way through the system.
Fix all the leaks, then see what happens. If there is any doubt, an overnight pressure test will show internal leaks (and find many external ones!).
If you have any leaks in your cooling system, the boiling temperature is much lower due to lack of pressure. So you will get all kinds of gurgling and boiling as hot spots form and the bubbles make their way through the system.
Fix all the leaks, then see what happens. If there is any doubt, an overnight pressure test will show internal leaks (and find many external ones!).
Last edited by Aaron Cake; 02-08-14 at 10:07 AM.
#9
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About middle on an S4 gauge is only around 90 degrees. Not even close to overheating. 90 degree is lower than I typically set cooling fan turn on points.
If you have any leaks in your cooling system, the boiling temperature is much lower due to lack of pressure. So you will get all kinds of gurgling and boiling as hot spots form and the bubbles make their way through the system.
Fix all the leaks, then see what happens. If there is any doubt, an overnight pressure test will show internal leaks (and find many external ones!).
If you have any leaks in your cooling system, the boiling temperature is much lower due to lack of pressure. So you will get all kinds of gurgling and boiling as hot spots form and the bubbles make their way through the system.
Fix all the leaks, then see what happens. If there is any doubt, an overnight pressure test will show internal leaks (and find many external ones!).
#13
Rotard
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I believe I do have a cat, and as far as coolant leaks I have one by the thermostat housing and possibly at the water pump, which I'm in the process of fixing at the moment.
I should also mention that my air fuel ratio gauge is mostly at lean when I'm cruising. Not sure if rotarys run at 14.7 or leaner
I should also mention that my air fuel ratio gauge is mostly at lean when I'm cruising. Not sure if rotarys run at 14.7 or leaner
#16
Sharp Claws
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the smog pump will raise the AFR by 2-3 points, so 15-17:1 AFR while cruising at lower RPMs is perfectly normal. above about 3k RPMs though the air gets dumped into the cat so the O2 sensor won't be reading it and the numbers will drop down to what is actually being burned by the engine.
but puffs of white smoke on shifts is usually oil seals or the turbo. if the trailing plugs are dry of oil then it is more likely the turbo.
but puffs of white smoke on shifts is usually oil seals or the turbo. if the trailing plugs are dry of oil then it is more likely the turbo.
Last edited by RotaryEvolution; 02-09-14 at 11:37 AM.
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I just ordered myself an R series koyo rad. Thoughts on them? I've heard good things and bad things about them. I ordered via THmotorsports. Not eBay or some weird fake website
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