Dumb Question Thread - no flaming or sarcasm allowed
#3851
Senior Member
What is the fan behavior on the RX8 when the car is moving on a series II?
Does the ECU know the car is moving and disable the fan?
Which way does the fan point?
I am asking because I was throwing around the idea of a reversible oil cooler fan, and using the factory radiator relay to trigger when my relay would fire. When the car is not moving I would like the fan to blow against out instead of back towards the tires so it would also take hot air away from the whole engine bay as a side effect.
Does the ECU know the car is moving and disable the fan?
Which way does the fan point?
I am asking because I was throwing around the idea of a reversible oil cooler fan, and using the factory radiator relay to trigger when my relay would fire. When the car is not moving I would like the fan to blow against out instead of back towards the tires so it would also take hot air away from the whole engine bay as a side effect.
Last edited by badinfluence; 07-31-2014 at 11:59 AM.
#3853
I am the original owner of a 2004 that has just lost compression. I've taken excellent of my car, but these cars can fail by 100,000 miles (I have 91,000 on mine). My Mazda dealer has replaced eight engines this year. The warranty is 8 years or 100,000 miles so if you buy the 2003, you would be out of luck if it fails.
#3854
Charles Bundy
iTrader: (5)
I am the original owner of a 2004 that has just lost compression. I've taken excellent of my car, but these cars can fail by 100,000 miles (I have 91,000 on mine). My Mazda dealer has replaced eight engines this year. The warranty is 8 years or 100,000 miles so if you buy the 2003, you would be out of luck if it fails.
#3855
Senior Member
Anyone know the part number for the "TIP" of the 2 or 3 vacuum hoses that connect to the "Accordion" intake. It looks like a Male symbol with a normal barb end then a square lock that interlocks with the two missing chucks of the intake hose.
Or any idea what I could use instead that would seal well. My RX8 only needs 2 of the 3 available so I was going to add a VAC gauge there.
![](https://www.rx8club.com/attachments/series-i-tech-garage-22/148364d1258608763-high-oil-consumption-due-wrong-air-intake-hose-series-1-only-1.jpg)
The "TIP" of part 13-758
Or any idea what I could use instead that would seal well. My RX8 only needs 2 of the 3 available so I was going to add a VAC gauge there.
![](https://www.rx8club.com/attachments/series-i-tech-garage-22/148364d1258608763-high-oil-consumption-due-wrong-air-intake-hose-series-1-only-1.jpg)
The "TIP" of part 13-758
#3857
Senior Member
I had my car worked on and they let it idle and baked up some carbon, then my brake booster was so bad the ABS wouldn't function and I had to rev and pump at the same time to stop. At first I suspected Vacuum leak, but after about 150 miles and cleaning up the grounds it seems to be "better" but not what it was before a hit and run. The YAW sensor was also replaced.
#3858
Brake Master Cylinder Difference - June 2005 onward
My Brake master cylinder is dickered, and i placed an order with Cardone for a refurbished one, however when it arrived, it was a little different than the original one i had on the car.
I didn't know that there was a difference until i looked online at a few different sites selling cylinders.
I know my car is an '05, and what i got was marketed as a '05, but i saw somewhere that they made a change to the cylinder, and there mounting of the reservoir.
Has anyone else come across this issue?
and the brake line fittings won't start as easily, I'm wondering if they're different threads? i could probably make do with it, but i don't want to screw it up.
I didn't know that there was a difference until i looked online at a few different sites selling cylinders.
I know my car is an '05, and what i got was marketed as a '05, but i saw somewhere that they made a change to the cylinder, and there mounting of the reservoir.
Has anyone else come across this issue?
and the brake line fittings won't start as easily, I'm wondering if they're different threads? i could probably make do with it, but i don't want to screw it up.
#3859
Senior Member
My Brake master cylinder is dickered, and i placed an order with Cardone for a refurbished one, however when it arrived, it was a little different than the original one i had on the car.
I didn't know that there was a difference until i looked online at a few different sites selling cylinders.
I know my car is an '05, and what i got was marketed as a '05, but i saw somewhere that they made a change to the cylinder, and there mounting of the reservoir.
Has anyone else come across this issue?
and the brake line fittings won't start as easily, I'm wondering if they're different threads? i could probably make do with it, but i don't want to screw it up.
I didn't know that there was a difference until i looked online at a few different sites selling cylinders.
I know my car is an '05, and what i got was marketed as a '05, but i saw somewhere that they made a change to the cylinder, and there mounting of the reservoir.
Has anyone else come across this issue?
and the brake line fittings won't start as easily, I'm wondering if they're different threads? i could probably make do with it, but i don't want to screw it up.
#3860
Well... I thought it was all screwed up, so I decided to take it apart.
And I dickered up one of the seals myself trying to get the dn thing back in. I could get a new seal for it, but then I realized that it's IMPOSSIBLE to get it back in without a special tool. (There's two 1"ish Internal u-cup seals, external would be soooooo easy.)
So I'm ordering a 2006 model I think it should fix the problem
And I dickered up one of the seals myself trying to get the dn thing back in. I could get a new seal for it, but then I realized that it's IMPOSSIBLE to get it back in without a special tool. (There's two 1"ish Internal u-cup seals, external would be soooooo easy.)
So I'm ordering a 2006 model I think it should fix the problem
#3862
Registered
iTrader: (2)
Join Date: Oct 2007
Location: Pacific Northwest
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Physically doesn't fit. Like how a 10mm wrench can't fit on a 12mm bolt.
The whole thing changed design for the S2, because it had to feed 3 injectors instead of 2. Mr Sohn would have to design one for the S2, and he hasn't yet.
The whole thing changed design for the S2, because it had to feed 3 injectors instead of 2. Mr Sohn would have to design one for the S2, and he hasn't yet.
#3863
Modulated Moderator
iTrader: (3)
The OMP system on the series 2 engines is totally different than the series 1
There are huge differences in the engines...different plates, covers etc.....
The Series 2 pump also is electrically controlled using engine oiil pressure...unlike the Series 1 that is more of a pump
There are huge differences in the engines...different plates, covers etc.....
The Series 2 pump also is electrically controlled using engine oiil pressure...unlike the Series 1 that is more of a pump
#3865
You gonna eat that?
iTrader: (1)
#3868
Senior Member
I talked to Rotary Aviation, one of the makers of the SOHN about it too. I was bummed to hear about this too. I would use one even if I had to add my own pump, and tubing, but modifying the thing looks like a real challenge.
It also appears to recirculate and is inside the engine casing. If you look around for the tread, (I can't remember), I think the Team 9k from San Antonio pointed it out about the re-circulation and pickup tube.
It also appears to recirculate and is inside the engine casing. If you look around for the tread, (I can't remember), I think the Team 9k from San Antonio pointed it out about the re-circulation and pickup tube.
#3869
High temps after bumper swap
Hey guys. 2007 JDM RX-8 here.
I just swapped my front bumper with an R3 front bumper. Changed the headlights and fenders too. The oil coolers had some sort of cover on them to direct airflow from the opening the old bumper had. I couldn't mount the R3 bumper with it so I took them off. I also had to take off 2 big round pieces of regiform that were attached to the front chassis. I thought the lower lip (the little plastic lip with the triangle on) of the old bumper fits the new one. It didn't
so now the under tray isn't connected to the front bumper. Long story short, I made the R3 bumper fit without the lower lip. I left the under tray there. It was flapping around a bit but it wasn't going to fall off.
On my way home, I noticed that my cars temps were a little high. It would go up a few F while idling :O I was averaging around 212F in 82F ambient temp. Wasn't revving it. Doing 15 to 25 MPH on a busy street. RPM was around 1000-1500. It did drop down to 207 once. Only to go back to 214.
What did I do wrong? Would removing the oil cooler covers increase coolant temps? Is it because I didn't connect the lower lip? I can't think of another reason. I haven't touched the water pumps or fans. Help
I just swapped my front bumper with an R3 front bumper. Changed the headlights and fenders too. The oil coolers had some sort of cover on them to direct airflow from the opening the old bumper had. I couldn't mount the R3 bumper with it so I took them off. I also had to take off 2 big round pieces of regiform that were attached to the front chassis. I thought the lower lip (the little plastic lip with the triangle on) of the old bumper fits the new one. It didn't
![Frown](https://www.rx8club.com/images/smilies/frown.gif)
On my way home, I noticed that my cars temps were a little high. It would go up a few F while idling :O I was averaging around 212F in 82F ambient temp. Wasn't revving it. Doing 15 to 25 MPH on a busy street. RPM was around 1000-1500. It did drop down to 207 once. Only to go back to 214.
What did I do wrong? Would removing the oil cooler covers increase coolant temps? Is it because I didn't connect the lower lip? I can't think of another reason. I haven't touched the water pumps or fans. Help
![Frown](https://www.rx8club.com/images/smilies/frown.gif)
#3870
I could be wrong, but I BELIEVE that is correct. I had read somewhere that (a newer member?) was having issues overheating without the undertray not functioning properly, and WITH having the oil cooler screens in place. Not a 100% but for a quick reference unless someone else can chime in w more solid evidence, search "saga" in the forums.
#3872
Thanks for the replies Integr8 and dannobre. Much appreciated.
The under tray is in place. It's just not connected to the bumper by the lip, because there is no lip. But it's there. And it's on the same spot. Could just that increase my temps by 10F?
The oil cooler screens had to be removed because the new bumper didn't fit with them on. I'll try putting them back on and shaving the bit where it touches the bumper.
Can blocking the oil coolers increase coolant temps?
The under tray is in place. It's just not connected to the bumper by the lip, because there is no lip. But it's there. And it's on the same spot. Could just that increase my temps by 10F?
The oil cooler screens had to be removed because the new bumper didn't fit with them on. I'll try putting them back on and shaving the bit where it touches the bumper.
Can blocking the oil coolers increase coolant temps?
#3875
Excuse me if there is a better explanation as I'm still noob, but yes, typically they would work hand in hand. Hot oil, hot block, hot coolant jackets.... The tray not properly in place or bumper restricting air from its original design also playing part. As was stated cool air escaping around and not properly cooling...