Coolant *OVERFLOWING*
- Thread starter t3ase
- Start date
I purchased the Mazdaspeed 1.3 bar form corksport. They had a Greddy one listed on their site that was $10 cheaper. I tried to order the Greddy and they said they had been backordered for a long time. My stock one was leaking so bought Mazdaspeed. It stopped the leak and the extra pressure is supposed to help with boiling inside the engine. Redline has a tech article about coolant that is really good. http://66.54.67.96/whitePaper/17.pdf It mentions coolant boling over after hard driving and shutting down fast, but this doesn't sound like what happened to you.
Here's an answer to one of the Q's. The reason a blown HG will cause the coolant to overflow is because the cylinder pressure is introduced into the coolant system(depending on where the HG blew out). The coolant system isn't used to 130+psi, so it blows the coolant out.
Sounds 90% like a blown head gasket......I have been there with one of my past cars.
If you have blown a part of the HG...the presure created in combustion is pressurized throught the adjacent coolent system. Hard to explain....but that is what is happening with your coolent.
...its sorta...leaking inside...versus have the HG blowing outwards......
If you have blown a part of the HG...the presure created in combustion is pressurized throught the adjacent coolent system. Hard to explain....but that is what is happening with your coolent.
...its sorta...leaking inside...versus have the HG blowing outwards......
doh....I feel dumb....I only read the first page.... ignore my hasty post
So, if it was boiling in the coolant reservoir and leaking out while it was closed, that's a sign of a blown gasket? Reason I ask is that this was before I even had the JoeP installed. I noticed recently that I'm consuming a bit of oil, so now that you say that, it concerns me.. I know a blown head gasket will cause coolant to leak but I didn't think it would cause it to come out of the resivoir bottle. Nothing was leaking out of the radiator itself, only the reservoir tank.YP5 Toronto said:
It could be a small leak happening across the smallest parts of the HG....that being between the cyclinders. This type of problem is tough because it is not as evident as a "full blown" HG. Under heavy pressure (load) the pressure is forcing AIR into the coolant system...and the only realease for this pressure is through the coolant tank...hence all the coolant in the engine bay area. The radiator is solid...so nothing is going to come out of that area.
Consuming oil is not a good sign....whether the car is NA or FI.
What color is the oil? does it look milky? I don't think the HG is damaged to the extend that you are loosing extreme compression....you would notice that.
Get a compression test done.
Consuming oil is not a good sign....whether the car is NA or FI.
What color is the oil? does it look milky? I don't think the HG is damaged to the extend that you are loosing extreme compression....you would notice that.
Get a compression test done.
