5 speed gearbox
07-09-2017, 08:39 PM
#1
5 speed gearbox
hi all i just got my hand on a RX8 a few months back and a noise was coming from what i was thinking the Throw out barring so i changed the clutch and TOB the noise did seem to stop for around a month and now its back and worse 
joy but i also seem to be getting a churning noise from the box so im planing on changing the box and clutch &TOB& pinion barring this time round just wondering iv seen a few post about being able to bolt a S2 box on a S1 with no real mods but the reverse/n cables is it the same for the 5 speed box's as trying to google what each one looks like to get a idea i cant find anything with a clear this is S1 box this is S2 box .
Sorry if this is a dead horse and been brought up time and time again just want to make sure before getting the wrong box.
joy but i also seem to be getting a churning noise from the box so im planing on changing the box and clutch &TOB& pinion barring this time round just wondering iv seen a few post about being able to bolt a S2 box on a S1 with no real mods but the reverse/n cables is it the same for the 5 speed box's as trying to google what each one looks like to get a idea i cant find anything with a clear this is S1 box this is S2 box . Sorry if this is a dead horse and been brought up time and time again just want to make sure before getting the wrong box.
07-10-2017, 03:53 AM
#3
Smoking turbo yay
Do you hold your clutch in at stoplights? That's bad for the TOB. Shift into neutral and let out the clutch if you have to wait for a stoplight.
Also, is there any clearance issues with the clutch?
Did you check the transmission fluid on the car?
Don't just throw expensive parts at your car - start from the cheap, easy stuff first.
As for the gearbox, early S2 gearboxes can be a bit weak as well. If you want one, make sure it's a fully updated one from later years. A gearbox is also pricey. Think it through before you drop that kind of money.
Also, is there any clearance issues with the clutch?
Did you check the transmission fluid on the car?
Don't just throw expensive parts at your car - start from the cheap, easy stuff first.
As for the gearbox, early S2 gearboxes can be a bit weak as well. If you want one, make sure it's a fully updated one from later years. A gearbox is also pricey. Think it through before you drop that kind of money.
Last edited by UnknownJinX; 07-10-2017 at 04:25 AM.
07-10-2017, 06:28 AM
#4
Do you hold your clutch in at stoplights? That's bad for the TOB. Shift into neutral and let out the clutch if you have to wait for a stoplight.
Also, is there any clearance issues with the clutch?
Did you check the transmission fluid on the car?
Don't just throw expensive parts at your car - start from the cheap, easy stuff first.
As for the gearbox, early S2 gearboxes can be a bit weak as well. If you want one, make sure it's a fully updated one from later years. A gearbox is also pricey. Think it through before you drop that kind of money.
Also, is there any clearance issues with the clutch?
Did you check the transmission fluid on the car?
Don't just throw expensive parts at your car - start from the cheap, easy stuff first.
As for the gearbox, early S2 gearboxes can be a bit weak as well. If you want one, make sure it's a fully updated one from later years. A gearbox is also pricey. Think it through before you drop that kind of money.
no problems with the clutch or flywheel when installed.
put brand new transmission oil in the box when i changed the clutch.
I have been looking on ebay for second hand gearbox's they tend to go for £100-300 just want to know if both types of 5 speed will bolt straight on or if i will need a plate
07-10-2017, 06:56 AM
#5
i posted a vid of the noise to youtube
https://www.youtube.com/watch?v=Nvwh...ature=youtu.be
the noise to me sounds like the TOB but as i said before i only just changed it with a EXEEDY clutch kit £400 kit.
https://www.youtube.com/watch?v=Nvwh...ature=youtu.be
the noise to me sounds like the TOB but as i said before i only just changed it with a EXEEDY clutch kit £400 kit.
Last edited by Ashley Chard-maple; 07-10-2017 at 07:17 AM.
07-10-2017, 10:55 AM
#7
Smoking turbo yay
Early S2 6MT had weaker 5th and 6th gear synchros. I have yet to see an S2 gearbox go for that cheap. An S1 gearbox, maybe, but not an S2, especially if you want the one with all updated components(better 5th and 6th gear synchros, reverse gear, 1st and 2nd gear clutch hubs, etc.).
07-10-2017, 11:18 AM
#8
i posted a vid of the noise to youtube
https://www.youtube.com/watch?v=Nvwh...ature=youtu.be
the noise to me sounds like the TOB but as i said before i only just changed it with a EXEEDY clutch kit £400 kit.
https://www.youtube.com/watch?v=Nvwh...ature=youtu.be
the noise to me sounds like the TOB but as i said before i only just changed it with a EXEEDY clutch kit £400 kit.
Was it the Stage 1 Exedy kit? This may be relevant... https://www.rx8club.com/series-i-tro...clutch-244381/
I don't know about the 5-speeds, but stock 6-speeds naturally make a churning sound at idle. It's normal for them. Was the TOB you pulled out actually broken?
07-10-2017, 12:22 PM
#9
Was it the Stage 1 Exedy kit? This may be relevant... https://www.rx8club.com/series-i-tro...clutch-244381/
I don't know about the 5-speeds, but stock 6-speeds naturally make a churning sound at idle. It's normal for them. Was the TOB you pulled out actually broken?
I don't know about the 5-speeds, but stock 6-speeds naturally make a churning sound at idle. It's normal for them. Was the TOB you pulled out actually broken?
07-10-2017, 12:25 PM
#10
There is no such thing as a S2 5-speed. S2 only had 2 kinds of trans, 6MT and 6AT, both different from the S1 versions.
Early S2 6MT had weaker 5th and 6th gear synchros. I have yet to see an S2 gearbox go for that cheap. An S1 gearbox, maybe, but not an S2, especially if you want the one with all updated components(better 5th and 6th gear synchros, reverse gear, 1st and 2nd gear clutch hubs, etc.).
Early S2 6MT had weaker 5th and 6th gear synchros. I have yet to see an S2 gearbox go for that cheap. An S1 gearbox, maybe, but not an S2, especially if you want the one with all updated components(better 5th and 6th gear synchros, reverse gear, 1st and 2nd gear clutch hubs, etc.).
£130 plus postage
mazda rx8 5 speed gearbox 40k | eBay
but this might just be the way im looking at the boxs but if your all telling me the boxs are the same then happy days il pick one up tomarrow and thank you for your help lads
Last edited by Ashley Chard-maple; 07-10-2017 at 12:36 PM.
07-10-2017, 12:40 PM
#11
5 speed came from the "low power" manual cars. I'm not exactly sure what all countries. I think Canada and Japan for sure.
The 5 speed is only really necessary if you're going to make over 350WHP. It is an FD RX7 box with RX8 bell housing and tail shaft.
The 5 speed is only really necessary if you're going to make over 350WHP. It is an FD RX7 box with RX8 bell housing and tail shaft.
07-10-2017, 12:58 PM
#12
Smoking turbo yay
5MT is not a thing in Canada. Only in Europe and Japan. We only got the 4AT option for the 4-port just like the US.
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reddozen (07-10-2017)
07-10-2017, 04:35 PM
#14
oh that's awesome to know but im only using this 192 to learn more about rotor engines of the RX8. planning on getting a 3rd gen in the year then on to the RX7
07-10-2017, 11:01 PM
#17
Smoking turbo yay
4-port engines are also more expensive to repair and replace since they are rarer.
You have to understand that MT cars make up a very small percent of the car sales in North America. Only about 4% of the vehicles sold in the US are MT(Canada is probably similar). The others are traditional AT, DCT, and the very exciting(it's sarcastic if you can't tell) CVT.
With that in mind, it wouldn't make sense for Mazda offer 2 MT options in North America.
Not a lot of people bother to learn MT here. It's not mandatory, and there is no separate license for driving a MT. I guess I am just a freak for learning the MT purely out of my own interest and curiosity, and I am glad I did. After I learned MT, I find myself yawning a whole lot more in an AT. Just can't do it anymore.
RX-8 is one of the cars that's extremely easy to find in MT in North America, which is a big part of the reason why I am here. My original plan was to a copy of my Honda Accord Coupe V6 with a 6-speed(rather than the sluggish 5AT), but those are a massive pain in the rear to find. Dedicated Honda fans sometimes fly over a couple of states for a Honda Accord Coupe V6 with a 6-speed MT. I also wanted to try a RWD sports car, so there is also that.
Basically, if you are in North America and want a decent used MT car, good luck. The only MT cars that are easy to find are the ones with a very detuned AT version(RX-8 being the prime example), or only available in MT(S2000, Viper). Hopefully, the UK is a bit different, you tell me.
07-11-2017, 08:30 AM
#18
You have to understand that MT cars make up a very small percent of the car sales in North America. Only about 4% of the vehicles sold in the US are MT(Canada is probably similar). The others are traditional AT, DCT, and the very exciting(it's sarcastic if you can't tell) CVT.
With that in mind, it wouldn't make sense for Mazda offer 2 MT options in North America.
Not a lot of people bother to learn MT here. It's not mandatory, and there is no separate license for driving a MT. I guess I am just a freak for learning the MT purely out of my own interest and curiosity, and I am glad I did. After I learned MT, I find myself yawning a whole lot more in an AT. Just can't do it anymore.
RX-8 is one of the cars that's extremely easy to find in MT in North America, which is a big part of the reason why I am here. My original plan was to a copy of my Honda Accord Coupe V6 with a 6-speed(rather than the sluggish 5AT), but those are a massive pain in the rear to find. Dedicated Honda fans sometimes fly over a couple of states for a Honda Accord Coupe V6 with a 6-speed MT. I also wanted to try a RWD sports car, so there is also that.
Basically, if you are in North America and want a decent used MT car, good luck. The only MT cars that are easy to find are the ones with a very detuned AT version(RX-8 being the prime example), or only available in MT(S2000, Viper). Hopefully, the UK is a bit different, you tell me.
With that in mind, it wouldn't make sense for Mazda offer 2 MT options in North America.
Not a lot of people bother to learn MT here. It's not mandatory, and there is no separate license for driving a MT. I guess I am just a freak for learning the MT purely out of my own interest and curiosity, and I am glad I did. After I learned MT, I find myself yawning a whole lot more in an AT. Just can't do it anymore.
RX-8 is one of the cars that's extremely easy to find in MT in North America, which is a big part of the reason why I am here. My original plan was to a copy of my Honda Accord Coupe V6 with a 6-speed(rather than the sluggish 5AT), but those are a massive pain in the rear to find. Dedicated Honda fans sometimes fly over a couple of states for a Honda Accord Coupe V6 with a 6-speed MT. I also wanted to try a RWD sports car, so there is also that.
Basically, if you are in North America and want a decent used MT car, good luck. The only MT cars that are easy to find are the ones with a very detuned AT version(RX-8 being the prime example), or only available in MT(S2000, Viper). Hopefully, the UK is a bit different, you tell me.
see its the complete opposite here most cars are manual the only people that have AT is because they find it hard driving a MT or they are stuck in a city with traffic jam after traffic jam
07-21-2017, 02:55 PM
#19
hello again lads my second hand 5 speed box just arrived after looking at it i felt a bit of play in the input shaft i called the supplier he said he had 9 other box's in the shop and all of them have a little up/down play on the input is this normal for the rx8 box to have play or is he making things up ??????
07-21-2017, 05:13 PM
#20
07-21-2017, 05:40 PM
#22
07-21-2017, 07:04 PM
#23
No, another member said there was an early & late S2 RX8 trans and that's incorrect. As a result somebody needs to set the record straight.
Otherwise take it to a trans shop and ask their advice. There will be some play which is why there's a pilot bearing in the end of the e-shaft to provide support, but determining whether it's too much play or not needs to done in person, not over the internet.
Otherwise take it to a trans shop and ask their advice. There will be some play which is why there's a pilot bearing in the end of the e-shaft to provide support, but determining whether it's too much play or not needs to done in person, not over the internet.
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Ashley Chard-maple (07-22-2017)
07-21-2017, 07:09 PM
#24
Smoking turbo yay
I looked back, and yeah, I wasn't exactly clear.
What I meant is that some parts of the S2 gearboxes were updated gradually, like the 5th/6th synchro, reverse gear, and clutch hubs, etc. The box in general is the same, but some of them have those updated parts, some don't, depending on the year they were made/rebuilt.
What I meant is that some parts of the S2 gearboxes were updated gradually, like the 5th/6th synchro, reverse gear, and clutch hubs, etc. The box in general is the same, but some of them have those updated parts, some don't, depending on the year they were made/rebuilt.
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Ashley Chard-maple (07-22-2017)
07-22-2017, 04:16 PM
#25
No, another member said there was an early & late S2 RX8 trans and that's incorrect. As a result somebody needs to set the record straight.
Otherwise take it to a trans shop and ask their advice. There will be some play which is why there's a pilot bearing in the end of the e-shaft to provide support, but determining whether it's too much play or not needs to done in person, not over the internet.
Otherwise take it to a trans shop and ask their advice. There will be some play which is why there's a pilot bearing in the end of the e-shaft to provide support, but determining whether it's too much play or not needs to done in person, not over the internet.
im thinking of putting it in anyway as the box i have is about to blow