Stop leak?
06-16-14, 11:41 PM
#6
Rotorhead
Join Date: Feb 2001
Location: Charlottesville, Virginia, USA
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Don't put that **** in your engine. If the leak is in the metal part, then just remove the radiator and take it to a shop to get it patched. It isn't very expensive.
Also, this may be a good time to upgrade to a high-performance all-aluminum radiator.
RX-7 Store - Koyo Radiators
Also, this may be a good time to upgrade to a high-performance all-aluminum radiator.
RX-7 Store - Koyo Radiators
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06-17-14, 11:54 AM
#8
that stuff will gum up the rad where its not needed. trust me. i overheatd a car using that stuff. it works too well. the rad passages are too small to let that junk pass and it fills the non-leaky passageways.
if the hole is in an end tank it can likely be replaced easily by any rad shop.
if the hole is in an end tank it can likely be replaced easily by any rad shop.
06-17-14, 12:44 PM
#10
Information Regurgitator
http://www.ebay.com/itm/GODSPEED-88-91-MAZDA-RX-7-FC3S-ALUMINUM-RADIATOR-2-ROW-/261361921466?pt=Motors_Car_Truck_Parts_Accessories&fits=Model%3ARX-7&hash=item3cda626dba&vxp=mtr
Though it might be a pain if trying to use the stock fan and shroud setup, but it has been done.
06-19-14, 09:44 PM
#11
LOPEY IDLE
Thread Starter
Ok let me explain a little more. It's a Koyo rad that I cut the hose necks off of and had rewelded on for my v mount set up. And when I was cuting the hose neck off I nicked the core prity good. I filled the hole up with Jb weld and it's dripping just a little bit. And all I can think of is stop leak. I mean can't i just put a little bit in and the change the coolent when it stops leaking?
06-19-14, 10:12 PM
#13
LOPEY IDLE
Thread Starter
WellI don't really have a choice but to run this rad at the moment. I'm taking the car to a drift event on the 28th and have no time or money to try anything else. Like it's such a slow little leak It just needs a little something to stop it! I would hate to scrap this rad!!!
06-19-14, 10:56 PM
#14
If you hadn't putjb weld on it, a good welder might have been able to seal it. Might!
If you were in ca, I would give you my stock radiator. A radiator that holds pressure is better than the best upgrade with a small leak. If it doesn't hold pressure your boiling point drops.
Don't do it or you'll be looking for another engine also
If you were in ca, I would give you my stock radiator. A radiator that holds pressure is better than the best upgrade with a small leak. If it doesn't hold pressure your boiling point drops.
Don't do it or you'll be looking for another engine also
06-19-14, 10:59 PM
#15
If you are in ca, I do have a rebuilt longblock for sale. 
I don't think the other drivers would appreciate you pissing coolant all over the track. I know you want to go sideways, but you want to be in control when your out of control, if ya get my drift
I don't think the other drivers would appreciate you pissing coolant all over the track. I know you want to go sideways, but you want to be in control when your out of control, if ya get my drift
06-19-14, 11:12 PM
#17
I've seen it, I used to work at a parts store when I was younger, and as a mechanic with 10 years experience, I have never seen it work even in a daily driver situation.
If it were to work to stop the leak, it would get everywhere in your cooling system and probably block proper coolant flow to the fins inside the radiator.
Use the stock radiator or one that doesn't leak and run your heater between sessions. You could also spray the radiator with water.
If you still insist on using the radiator with a pinhole leak, drain everything out and use only water so you don't get slippery coolant everywhere
If it were to work to stop the leak, it would get everywhere in your cooling system and probably block proper coolant flow to the fins inside the radiator.
Use the stock radiator or one that doesn't leak and run your heater between sessions. You could also spray the radiator with water.
If you still insist on using the radiator with a pinhole leak, drain everything out and use only water so you don't get slippery coolant everywhere
06-19-14, 11:35 PM
#18
LOPEY IDLE
Thread Starter
We'll like I said it's not a really bad leak. When the cars off it doesn't leak at all. And when it's running I will only get a drip like ones every minute or two. Even if It just slows the leak down a good bit that will be good enough for now.
06-20-14, 01:02 AM
#22
LOPEY IDLE
Thread Starter
All my money goes to getting ready for the drift event! There is a lot of stuff nonradiator related I had to buy. And getting paid by weekly doesn't help ether. I know it probably doesn't make a lot of sense to all of u but I have put so much work in to this car over winter to make sure I make it out to events this year and I have missed every event this season so far coz of this ******* radiator. And if it having a slow leak is as good as it's going to get that's good enough for me! I have been trying to get this car out there for. 3 years now! I'm not letting this rad hold me back!
06-20-14, 01:14 AM
#23
I don't want to be a jerk, but ANY coolant leak is a priority! Running a car and knowing there is a leak, spilling coolant on the track, and endangering other people and their cars is not acceptable. Your pretty much asking for more expensive problems with your car.
Like I posted before, run a good stock radiator it's better than a thicker shinyradiator a pinhole. That pinhole at 16psi or more after it boils because the system can't hold pressure and warps the engine or blows a coolant seal.
If you still don't want to listen and you luckily pass tech inspection, run only water, turn up the heater, spray water on radiator, and let a buddy know there is a possibility you may need a towe home. Good luck, hopefully nothing goes wrong since those drift runs are quick, keep your fingers crossed
Like I posted before, run a good stock radiator it's better than a thicker shinyradiator a pinhole. That pinhole at 16psi or more after it boils because the system can't hold pressure and warps the engine or blows a coolant seal.
If you still don't want to listen and you luckily pass tech inspection, run only water, turn up the heater, spray water on radiator, and let a buddy know there is a possibility you may need a towe home. Good luck, hopefully nothing goes wrong since those drift runs are quick, keep your fingers crossed
06-20-14, 12:16 PM
#24
Rotorhead
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It doesn't make any sense for two reasons:
1. Expensive auto events are for people who can afford them. This means not you. It is not difficult to change this situation with some education and self-control, but your current path is just making it worse.
2. The radiator is one of the most important parts on an RX-7, especially in low-speed high-rpm events like drifting. If you blow your engine, then how long will it take you to save up enough money for a radiator AND an engine rebuild? I'm guessing that you will not be drifting for quite some time.
Tech inspectors usually do a pretty good job of saving people from their own stupidity.
1. Expensive auto events are for people who can afford them. This means not you. It is not difficult to change this situation with some education and self-control, but your current path is just making it worse.
2. The radiator is one of the most important parts on an RX-7, especially in low-speed high-rpm events like drifting. If you blow your engine, then how long will it take you to save up enough money for a radiator AND an engine rebuild? I'm guessing that you will not be drifting for quite some time.
Tech inspectors usually do a pretty good job of saving people from their own stupidity.
06-20-14, 12:35 PM
#25
It doesn't make any sense for two reasons:
1. Expensive auto events are for people who can afford them. This means not you. It is not difficult to change this situation with some education and self-control, but your current path is just making it worse.
2. The radiator is one of the most important parts on an RX-7, especially in low-speed high-rpm events like drifting. If you blow your engine, then how long will it take you to save up enough money for a radiator AND an engine rebuild? I'm guessing that you will not be drifting for quite some time.
Tech inspectors usually do a pretty good job of saving people from their own stupidity.
1. Expensive auto events are for people who can afford them. This means not you. It is not difficult to change this situation with some education and self-control, but your current path is just making it worse.
2. The radiator is one of the most important parts on an RX-7, especially in low-speed high-rpm events like drifting. If you blow your engine, then how long will it take you to save up enough money for a radiator AND an engine rebuild? I'm guessing that you will not be drifting for quite some time.
Tech inspectors usually do a pretty good job of saving people from their own stupidity.