Need an expert
05-30-2015, 08:38 PM
#26
You're doing fine! Just work on fan wiring and get what you have working. When you get there maybe someone here will be able to help you source used fans if those ones are too small.
Don't worry about the fans blowing into the engine bay, its not an issue. Don't give up now, you're done with the expensive part.
Don't worry about the fans blowing into the engine bay, its not an issue. Don't give up now, you're done with the expensive part.
05-31-2015, 12:45 AM
#28
It looks like the stock wiring is still in place. I would start with only removing the two wires you see going out of the relays in the fuse box. It's fairly common to just control the stock relays early with kits like the one installed on your car, but in this case it looks like it went bad.
These are the wires I'm talking about. They are in no way stock, and they're making the two fans spin at the same speed all the time, rather than the three modes they're supposed to spin in.
If they spin at all after that it's an improvement over what you had.
Another source of cooling issues that you might have are your pulleys. The blue aluminum ones aren't stock and if they are under-drive pulleys (commonly used by stupid people to get "more" power from the engine) then the cooling system isn't flowing as much as the stock system in any situation.
These are the wires I'm talking about. They are in no way stock, and they're making the two fans spin at the same speed all the time, rather than the three modes they're supposed to spin in.
If they spin at all after that it's an improvement over what you had.
Another source of cooling issues that you might have are your pulleys. The blue aluminum ones aren't stock and if they are under-drive pulleys (commonly used by stupid people to get "more" power from the engine) then the cooling system isn't flowing as much as the stock system in any situation.
Last edited by Legot; 05-31-2015 at 12:49 AM.
05-31-2015, 12:48 AM
#29
Registered
Thread Starter
Join Date: May 2015
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
Awesome advice man, so i cut the wires? End of story? Everything goes back to as it should?
I dont meant to be a pain, just gotta be 100% clear. Thanks again for all the support!!
I dont meant to be a pain, just gotta be 100% clear. Thanks again for all the support!!
05-31-2015, 10:24 AM
#31
Welcome.
Um, for overheating, especially worrying about fans, check out
https://www.rx8club.com/series-i-tro...o-i-do-258334/
A suggestion, after going through that list, is the cooling stuff in the Congrats thread someone referenced. Specifically, foam around the radiator and fans on low, provided the fans are working. The issue you describe can be explained by the fans blowing hot air back around the radiator to re-enter. Hot air does not cool hot water. The lack of air box tray can make it worse. Your heat shield may make it better Foam as described in the post, can fix it.
Um, for overheating, especially worrying about fans, check out
https://www.rx8club.com/series-i-tro...o-i-do-258334/
A suggestion, after going through that list, is the cooling stuff in the Congrats thread someone referenced. Specifically, foam around the radiator and fans on low, provided the fans are working. The issue you describe can be explained by the fans blowing hot air back around the radiator to re-enter. Hot air does not cool hot water. The lack of air box tray can make it worse. Your heat shield may make it better Foam as described in the post, can fix it.
05-31-2015, 11:02 AM
#32
Are you over heating when at a light or when you are at cruise speed as well?
If you're doing 55mph down the highway the fans ain't doing **** but getting in the way.
05-31-2015, 11:37 AM
#33
Driving my unreliable rx8
it does not look like he has an undertray below the radiator. That is a must to keep cooling temps down. Also clean the radiator(pressure washer). front and back. Then straighten any bent fins, shove foam all the way around it so it can't suck up hot air from the engine compatment.
Since you are spilling coolant try an experiment. When your engine is cool. Take off the radiator cap and start the car. until the temp gauge shows about 30%. Normal driving is around 45%. See if the coolent boils out during this time. If not then good put on the cap and continue with the other things.
WTH, why are there turn buckles and iron bars under your bumper? Take offf your bumper and get a pic of the front of the car for us please. The bar the bumper is souposed to mount on is also missing. And it has some crapy little brackets on the corners by the lights.
Since you are spilling coolant try an experiment. When your engine is cool. Take off the radiator cap and start the car. until the temp gauge shows about 30%. Normal driving is around 45%. See if the coolent boils out during this time. If not then good put on the cap and continue with the other things.
WTH, why are there turn buckles and iron bars under your bumper? Take offf your bumper and get a pic of the front of the car for us please. The bar the bumper is souposed to mount on is also missing. And it has some crapy little brackets on the corners by the lights.
Last edited by logalinipoo; 05-31-2015 at 11:45 AM.
05-31-2015, 12:15 PM
#34
WTH, why are there turn buckles and iron bars under your bumper? Take offf your bumper and get a pic of the front of the car for us please. The bar the bumper is souposed to mount on is also missing. And it has some crapy little brackets on the corners by the lights.
I'm too stoopid to see what you are seeing.
Thnx man
05-31-2015, 01:00 PM
#35
@ Logal
Good catch, no undertray. that will really hose cooling, all the air through the front will just go out the bottom of the car. OP, need to address that first. Take a picture from under the bumper to show us if the side pieces are there. You may just need a bottom plate. Foam around the radiator will do no good until that is fixed.
@ WCS, look at the picture of the air filter, the one where he got it in front of the radiator. Something appears to have happened to the front of the car. The regular bumper mounts have been replaced by stuff from home depot.
Good catch, no undertray. that will really hose cooling, all the air through the front will just go out the bottom of the car. OP, need to address that first. Take a picture from under the bumper to show us if the side pieces are there. You may just need a bottom plate. Foam around the radiator will do no good until that is fixed.
@ WCS, look at the picture of the air filter, the one where he got it in front of the radiator. Something appears to have happened to the front of the car. The regular bumper mounts have been replaced by stuff from home depot.
05-31-2015, 01:55 PM
#36
Registered
Thread Starter
Join Date: May 2015
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
Awesome replies, ok under tray, that is my new priority, then foam.there is something wrong with the bumper, i cant tell what happened since i dont know how the original setup goes. I cant remove the bumper because some jackwad use rivets to mount it. I have to remove those, and gonget nuts and bolts, then I have to epoxy the uh... u should see it in the pics.
Ok undertray, i need to find some pictures for example. Thanks!!
Ok undertray, i need to find some pictures for example. Thanks!!
05-31-2015, 03:06 PM
#37
Toast
I wouldn't just cut the wires. You will need new fan control relays. (Black boxes the wires are going into). You can buy these here, brand new. They just pull straight out of the fuse box. Buy two of these, then pull what you have. That will get your fans turning the way the factory intended. I personally have the cooling fan mod, and like it, but I wonder if your thermostat has gone bad and now you're fans aren't turning properly.
04-11 Rx8 Cooling Fan Relay (B115-67-720)
Those blue pulleys may also be doing you harm. If the water pump isn't being turned fast enough, bad things could happen. You should be able to find another plastic under tray on eBay. It's a good piece to have. Keeps water off your spark plugs and coils (ask me how I know that. Good story with a car wash).
Good luck!
I wouldn't just cut the wires. You will need new fan control relays. (Black boxes the wires are going into). You can buy these here, brand new. They just pull straight out of the fuse box. Buy two of these, then pull what you have. That will get your fans turning the way the factory intended. I personally have the cooling fan mod, and like it, but I wonder if your thermostat has gone bad and now you're fans aren't turning properly.
04-11 Rx8 Cooling Fan Relay (B115-67-720)
Those blue pulleys may also be doing you harm. If the water pump isn't being turned fast enough, bad things could happen. You should be able to find another plastic under tray on eBay. It's a good piece to have. Keeps water off your spark plugs and coils (ask me how I know that. Good story with a car wash).
Good luck!
05-31-2015, 03:13 PM
#38
Registered
Thread Starter
Join Date: May 2015
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
I have a brand new radiator and thermostat. The guy at the dealership told me the radiator is not original but aftermarket. Maybe that has something to Do with it. I will get new relays, thanks for that information. It most certainly feels like the fans should be running faster.
Ill let you guys know as soon as I get my hands on the relays. I am thinking I will fabricate the tray out of sheet metal, when I loved in the philippines ingot the habit of making things since everything was so expensive there.
Any tips or advice for making one? I was thinking 2mm burshed aluminum, i live in hawaii so buying oarts online kills me in shipping.... a 15.00 part can cost 50 to ship... its crazy...
Ill let you guys know as soon as I get my hands on the relays. I am thinking I will fabricate the tray out of sheet metal, when I loved in the philippines ingot the habit of making things since everything was so expensive there.
Any tips or advice for making one? I was thinking 2mm burshed aluminum, i live in hawaii so buying oarts online kills me in shipping.... a 15.00 part can cost 50 to ship... its crazy...
05-31-2015, 06:01 PM
#39
Toast
I wouldn't just cut the wires. You will need new fan control relays. (Black boxes the wires are going into). You can buy these here, brand new. They just pull straight out of the fuse box. Buy two of these, then pull what you have. That will get your fans turning the way the factory intended. I personally have the cooling fan mod, and like it, but I wonder if your thermostat has gone bad and now you're fans aren't turning properly.
04-11 Rx8 Cooling Fan Relay (B115-67-720)
Those blue pulleys may also be doing you harm. If the water pump isn't being turned fast enough, bad things could happen. You should be able to find another plastic under tray on eBay. It's a good piece to have. Keeps water off your spark plugs and coils (ask me how I know that. Good story with a car wash).
Good luck!
I wouldn't just cut the wires. You will need new fan control relays. (Black boxes the wires are going into). You can buy these here, brand new. They just pull straight out of the fuse box. Buy two of these, then pull what you have. That will get your fans turning the way the factory intended. I personally have the cooling fan mod, and like it, but I wonder if your thermostat has gone bad and now you're fans aren't turning properly.
04-11 Rx8 Cooling Fan Relay (B115-67-720)
Those blue pulleys may also be doing you harm. If the water pump isn't being turned fast enough, bad things could happen. You should be able to find another plastic under tray on eBay. It's a good piece to have. Keeps water off your spark plugs and coils (ask me how I know that. Good story with a car wash).
Good luck!
As far as an undertray goes it doesn't really matter what it's made of as long as it works. I ran a ~1mm sheet metal tray for 8 months with no problems and it costed less than $20. The one I have on now is a really (really really really) nice fiberglass duct that I built and that was only $60 or so. The undertray is the highest priority, followed by controlling the fans.
Can you measure the diameter of your blue pulleys so we can see if they're under-driving everything?
Last edited by Legot; 05-31-2015 at 06:09 PM.
05-31-2015, 08:06 PM
#41
Registered
Thread Starter
Join Date: May 2015
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
OK the top blue pully is 2 and 3/16th
the bottom blue one is about 4 1/2 inches... I will measure again after it is cooler.
So the heat shield is doing its job, thank god. I pushed high RPM's and floored it getting onto the highway earlier, not as if I had a choice in the situation. and the engine temp needle started to move, as I was doing 60. So the fans are obviously NOT spinning anywhere near fast enough. I have new relays coming.
Can anyone do me a favor and give me the measurements of the under stray? I will fabricate it tomorrow. But I would like to have it ready for my mechanic to install.
Under normal circumstances I would do it my self. But my car is so low to the ground... I have no way to get the car up or even high enough. There is a hobby shop here with a lift I could use If i was military but I separated and they wont let me in the shop as a veteran. which is some major bull.
After I get the new relays, I do not imagine much of a heat issue, If anyone has any tips for my new fabrication project, please let me know. IE vents, mods, ect... for optimal results.
Once again THANKS!!!!!!!
EDIT* So about those relays, 10 bucks each, so 20, not bad right? well 39.00 shipping, well Ill be a monkeys uncle!!!!!! So I called NAPA, they got them 25 bucks a pop... not a whole lot of choices here. I saw one on Ebay for 8.99 but one relay isn't going to help me much. Oh well. After I install the relays I will take the car for a spin and push the RPM's up and I will let you guys know ASAP of the results.
the bottom blue one is about 4 1/2 inches... I will measure again after it is cooler.
So the heat shield is doing its job, thank god. I pushed high RPM's and floored it getting onto the highway earlier, not as if I had a choice in the situation. and the engine temp needle started to move, as I was doing 60. So the fans are obviously NOT spinning anywhere near fast enough. I have new relays coming.
Can anyone do me a favor and give me the measurements of the under stray? I will fabricate it tomorrow. But I would like to have it ready for my mechanic to install.
Under normal circumstances I would do it my self. But my car is so low to the ground... I have no way to get the car up or even high enough. There is a hobby shop here with a lift I could use If i was military but I separated and they wont let me in the shop as a veteran. which is some major bull.
After I get the new relays, I do not imagine much of a heat issue, If anyone has any tips for my new fabrication project, please let me know. IE vents, mods, ect... for optimal results.
Once again THANKS!!!!!!!
EDIT* So about those relays, 10 bucks each, so 20, not bad right? well 39.00 shipping, well Ill be a monkeys uncle!!!!!! So I called NAPA, they got them 25 bucks a pop... not a whole lot of choices here. I saw one on Ebay for 8.99 but one relay isn't going to help me much. Oh well. After I install the relays I will take the car for a spin and push the RPM's up and I will let you guys know ASAP of the results.
Last edited by Majictoast; 05-31-2015 at 08:28 PM.
05-31-2015, 11:25 PM
#42
These ones look like they ship free worldwide.
Mazda B115 12 Volt Imasen Relay Fuse Tested Free Shipping | eBay
If you're using a mechanic to do anything you're wasting your money, just buy a jack. It will be cheaper. Something messed up the front of your car at some point and measurements won't help, you'll have to freehand it.
It looks like your pulleys are underdrive pulleys. They're bigger than the stock ones (my water pump pulley is only ~4") See if you can get a cheap used stock set of pulleys from somewhere.
Mazda B115 12 Volt Imasen Relay Fuse Tested Free Shipping | eBay
If you're using a mechanic to do anything you're wasting your money, just buy a jack. It will be cheaper. Something messed up the front of your car at some point and measurements won't help, you'll have to freehand it.
It looks like your pulleys are underdrive pulleys. They're bigger than the stock ones (my water pump pulley is only ~4") See if you can get a cheap used stock set of pulleys from somewhere.
05-31-2015, 11:54 PM
#43
I have a Mazda specialty junkyard here in Dallas. Toast, if shipping was reasonable, I would happily be your middleman. (I'll buy what you need at junkyard. Ship to the islands, you reimburse me)
Can someone more in the know tell Toast what he needs? I assume it's the three pulleys and a belt?
Can someone more in the know tell Toast what he needs? I assume it's the three pulleys and a belt?
06-01-2015, 12:10 AM
#44
I think it's just the water pump and alternator pulleys, the belts are probably still stock. The relays from a scrapped car would also be good. The relay for the starter since the top of his is broken...
The OEM fans maybe? IDK, that might get expensive.
The OEM fans maybe? IDK, that might get expensive.
Last edited by Legot; 06-01-2015 at 12:13 AM.
06-01-2015, 12:34 AM
#46
Driving my unreliable rx8
06-01-2015, 12:38 AM
#47
Driving my unreliable rx8
I'm really not trying to start ****, but that tray doesn't cover anything going to the spark plugs. It stops at the radiator.
06-01-2015, 12:51 AM
#48
Registered
Thread Starter
Join Date: May 2015
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
Those pullys are making a significant difference?
I got two fans from oriley auto,
http://m.oreillyauto.com/mt/www.oreillyauto.com/site/c/detail/HDN2/3680/04410.oap?year=2004&make=Mazda&model=RX-8&vi=1416844&ck=Search_04410_1416844_3176&pt=04410 &ppt=C0331
There, i got twonfor the price of one actually. Are the fans not proper???
Also if someone could hook me up with the measurements of the undertray, id appreciate it. I will see if i can find a jack on craigslist. My car is so low to the ground.... i need a low profile. What do I hold my car up with after? Id hate to get crushed and die...
I got two fans from oriley auto,
http://m.oreillyauto.com/mt/www.oreillyauto.com/site/c/detail/HDN2/3680/04410.oap?year=2004&make=Mazda&model=RX-8&vi=1416844&ck=Search_04410_1416844_3176&pt=04410 &ppt=C0331
There, i got twonfor the price of one actually. Are the fans not proper???
Also if someone could hook me up with the measurements of the undertray, id appreciate it. I will see if i can find a jack on craigslist. My car is so low to the ground.... i need a low profile. What do I hold my car up with after? Id hate to get crushed and die...
06-01-2015, 12:55 AM
#50
Driving my unreliable rx8
jack stands. or a wood cribb
It looks like you car has had front end damage. So stock measurements will not work. Even if you did use them. Then you might have to spend twice the money to build a second one to fit.
It looks like you car has had front end damage. So stock measurements will not work. Even if you did use them. Then you might have to spend twice the money to build a second one to fit.