INSTANT FIX for your Mazda MX5 NC gearbox!

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  • Опубликовано: 22 окт 2024

Комментарии • 70

  • @Alias1431
    @Alias1431 Год назад +5

    The plate is more than just a reverse lockout, and it absolutely needed to be changed. That "dust" you commented on is the left side of that bracket disintegrating. The shifter slides along the left and right side to aid in travel between 1-2 and 5-6. 1-2 commonly wears down from more frequent use, as you can see in this video- the left side was eroding away (which caused the dust). Not only can this make it more likely you accidentally shift into reverse, but the travel between 1 and 2 is compromised, and shifting between those gears can get stuck or grindy. I just replaced mine on a 100k mile 2006, and wow was it overdue. A good half centimeter of material was just gone. No wonder my 1-2 shifts were garbage! Now it's smooth as butter.

    • @markmckay4964
      @markmckay4964 10 месяцев назад

      Where do you get the selector plate from please mate?

    • @tom77468
      @tom77468 8 месяцев назад

      Hey man, I have an ‘07 and have occasionally noticed some trouble getting into 3rd when shifting up (no issues downshifting) is this something you’ve come across too? Any recs? I already have MT-90 redline in it btw

    • @DamienMorrissey
      @DamienMorrissey 6 месяцев назад

      @@tom77468 On my 06 I ended up finding a few things and between them all it came good:
      1. MT-90 Redline has good reviews. I tried, but ended up with the Ford Motorcraft stuff that gets rave reviews.
      2. The reverse plate is essential. Change it.
      3. There is a bushing at the bottom which is plastic and wears out. I replaced with a brass one. Helps more positive engagement.
      4. I found I had a leaky clutch master cylinder. Definitely not great. I replaced both master and slave, bled and that made it more consistent. A leaky master is just bad news.
      5. I adjusted the clutch so that it had the minimum amount of freeplay while still having a TINY bit so that it would definitely disengage.
      6. Patience. I found that the new oil took a while to help. I don't think I gave the Redline enough time to work its way through the synchro rings, etc.
      7. Daily patience. The shifts into 2 and 3 can be rough in the morning if it is a bit cool Normal.
      8. Attention to detail. Make sure your floor mats if you have them do not work their way under the clutch. You need to get that sucker to the floor.
      9. Turret oil. Not critical, but feels nicer to shift with.
      10. Seat position. My wife struggled until she was positioned correctly.
      So yeah- there's loads you can do to improve your shifting feel.

  • @horatiosmith5827
    @horatiosmith5827 Год назад +2

    Enjoyed the video HB. The change from first to second is the primary concern. It's slightly crunchy unless you take your time, exacerbated in cold weather. It's a common and known condition of the MX5 NC. 6 speed. The most economical solution is this gear oil, which helps significantly. There is a retro fix from Japan, but it is prohibitively expensive. The gear selector plate was done as a precaution as they have been known to perish in older cars. I enjoyed the meeting up with Steve and Charlie, dedicated, knowledgeable, and professional. I wish them every success in the future and highly recommend them.

  • @cbuzz2371
    @cbuzz2371 6 месяцев назад +4

    There's separate oil in the gearstick turret too

  • @TNDTutoring
    @TNDTutoring Год назад +4

    Like the compressed air trick for the gear oil if pumps not working 👍

  • @urisluckin5253
    @urisluckin5253 7 месяцев назад +2

    Followed both your suggestions and the gear change on my 2013 MX5 NC is like hot knife through molten butter...thanks and more, please

    • @HomeBuilt
      @HomeBuilt  7 месяцев назад

      Brilliant, glad its helped.

  • @MalteseMafia
    @MalteseMafia Год назад +3

    Great job 👍 love the tip about checking the filler cap before draining 👍 great tip on using the compressed air on the oil container. Everydays a school day.

  • @slackdaddy1912
    @slackdaddy1912 Год назад +1

    Works like a charm, I use the same gear oil in both the manual trans and the differential, works perfectly.😊

    • @HomeBuilt
      @HomeBuilt  Год назад +1

      I think a few people have tried it now

  • @youmongrel
    @youmongrel 8 месяцев назад

    I just used some of the same Ford Motorsport lube as in the transmission oil change.

  • @Badger66
    @Badger66 Год назад +2

    Love the compressed air as a pump!

  • @richardmounfield7822
    @richardmounfield7822 Год назад +4

    Handy to know Steven. Maybe spray the underneath with the old gearbox oil to slow the tin worm advancing on it.

    • @HomeBuilt
      @HomeBuilt  Год назад +2

      Cheers Richard. Someone had undersealed the whole car but didn't clean and treat it first so its coming back to us to have Lanoguard applied.

    • @richardmounfield7822
      @richardmounfield7822 Год назад +1

      @@HomeBuilt Wife has an 04 cooper thats usually off the road more than its on and thinking its defo time for something sprayed under it to try and protect it so look forward to the lanoguard demo.

  • @scuba6936
    @scuba6936 Месяц назад

    I believe you should mix the mt-90 with the redline shockproof 50/50.

    • @scuba6936
      @scuba6936 21 день назад

      Did that with mine, 50/50 mix. Smooth as when changing and whine quieter

  • @turboman6680
    @turboman6680 22 дня назад

    Great video. I have a mk3 also and planning on doing diff and gearbox oil along with cleaning and treating the underside. Can you help by advising where i should have axle stands please and also where to jack up? Thanks, D

  • @rhythmstic
    @rhythmstic Год назад +1

    Thanks for the gearbox oil tip.

  • @trucker5722
    @trucker5722 Год назад +2

    I wonder how many lads have been ripped off for a new MX5 gear box when really all it needed was a oil change. Hope you get your 10k subs soon I have pointed a few of my mates you your Chanel, as they say every little helps.

    • @HomeBuilt
      @HomeBuilt  Год назад

      Very true.
      Thanks for sharing the channel, I'm sure we will hit the 10k soon 🤞
      Thanks again.

  • @MrSunnyBhoy
    @MrSunnyBhoy Год назад +1

    Great video , never thought this issue could be fixed 👌🏾

  • @scottanderson9361
    @scottanderson9361 Год назад +1

    Perfect as usual lads

  • @stewartwalker7740
    @stewartwalker7740 Год назад +2

    Absolutely amazing stevie and Charlie another amazing video and Peter said the Audi is running as sweet as a nut

    • @HomeBuilt
      @HomeBuilt  Год назад

      Cheers Stewart. Imnglaf hes happy with the Audi, it was a nice drive back from wheel alignment.

  • @dielaughing73
    @dielaughing73 Год назад +2

    Well worth pre-emptively replacing that reverse lockout plate. It's a common fault on NCs for it to wear and just generally be a pain in the backside.
    Mine was WAY too easy to slip into reverse when taking off, and with no gear indicator on the dash it was easy to miss. New plate solved the problem (which was evident at 82,000km).
    I will add that as an Aussie I went with the Penrite GL4 oil with added "Shifteze" additive. It's only been in for about one tank of fuel but it has already improved out of sight

  • @garypreston266
    @garypreston266 Год назад +1

    Great Fix Guy's

  • @Paulb19
    @Paulb19 Год назад +2

    Hello Lads hope you are all well , great video, what happened to the BMW X5 is it still a project ?

    • @HomeBuilt
      @HomeBuilt  Год назад +1

      Hi Paul,
      Black one has gone back to the customer and the silver one is still in my drive at home waiting on me deciding what to do with it 🤣

  • @stevo4649
    @stevo4649 Год назад +1

    thankyou gentlemen,a couple of great tips re the gearbox etc,,never seen the compresser trick before,👌👌,and the next project sounds great,,👍

    • @HomeBuilt
      @HomeBuilt  Год назад +1

      Thanks Stevo, ive used that trick a few times, charlie laughed at me and asked if i was trying to impress him with basic physics 🤣🤣🤣 hes a wee bugger sometimes 😂

  • @norb0254
    @norb0254 Год назад +2

    I will guess that the american oil is thicker ,.if the syncro is worn ,then it can't slow down the bulk ring to enable a smooth crunch free change ..So a thicker oil will help the synchro slow the bulk ring ..But it seems to work so result .....The biggest cause to excessive synchro wear is people keeping their hand on the gearlever ..Instead of letting it go and it sitting happily with no pressure on the synchro they ,keep their hand on the lever applying constant pressure to the synchro which causes premature wear...good video

    • @HomeBuilt
      @HomeBuilt  Год назад +2

      No mate, its the same grade that we would use, i think its to do with the additives they use maybe but it seems to have very good coating properties when i tetsed it. Just far bettet quality i think.
      I kniw what you mean about the syncros but these MX5 's tend to do it from very low miles, dealers often tell you its a characteristic of the car.

    • @drumtochtyglen
      @drumtochtyglen Год назад

      Sorry you have not done your homework on this one. The GL4 spec for gear oil does not demand any specific viscosity at lower temperatures. Most GL4 oils only look at meeting the 40C and 100C approx viscosity or oil thicknesses. In the case of Redline MT90 and also Castrol Syntrans Multivehicle now with a name change to Castrol Transmax Multivehicle 75/W/90 both fully synthetic oils. Do not use any other Castrol gear oil in these boxes that is not termed Multivehicle. They are both 75W/90 grades, the oil blenders have used the latest technologies to get the oil thinner at lower temperatures of say -30C and 0C than other GL4 gear oils. While still having good high temperature properties and having the correct thickness at 100C. As noted by the Homebuilt guys the oil blenders have used all the tricks in the oil additive tool box. Good results on the Mazda 6 speed also comes from Millers CRX 75/90 NT

  • @ragnarironspear1791
    @ragnarironspear1791 Год назад +2

    Keep up the great work love the videos 👌🏻

  • @larsson7709
    @larsson7709 Год назад +3

    C’mon guys ..smash the bell ..let’s help Stevie and Charlie get those 10k subs 🏁These guys work super hard in the background to bring us good solid content👍

    • @HomeBuilt
      @HomeBuilt  Год назад +1

      Thank you, we really appreciate the support.

  • @phill282011
    @phill282011 Год назад +3

    Where did u get ur box of crush washers and o rings from. Do u have a link? ❤️

    • @HomeBuilt
      @HomeBuilt  Год назад +1

      AUTOPARTS mate, I can get one out to you if you need one.

    • @phill282011
      @phill282011 Год назад

      Yeah would like a link for it

  • @fulwell1
    @fulwell1 Год назад

    I've used Opie Oils for a number of things in the past and can happily vouch for their good service - really swift and good folks to deal with.
    Another name to keep in your memory is Tayna Batteries - absolutely superb and really well priced.

  • @raymondpearce5245
    @raymondpearce5245 Год назад +1

    A great job guys

  • @mazboost
    @mazboost 6 месяцев назад

    Its the lockout plate the makes the major difference in shifting between 1-2, not the oil. The material gets worn away from the shifter rubbing against the plate

  • @qdawg4033
    @qdawg4033 Год назад +1

    Back in the day I used molyslip in the old mini's if the gearboox was wee bit notchy,seemed to do the trick 👍

    • @HomeBuilt
      @HomeBuilt  Год назад +2

      I've heard that was good but i havent seen it for a while, ive used the Lucas and Slick 50 before

  • @johnelbro127
    @johnelbro127 Год назад +1

    Enjoyed this video and good info. 👍👍👍👍

  • @MegaWayfarer
    @MegaWayfarer 7 месяцев назад

    In my NC2 it was in fact the gear shift guide that improved it by 70% but still looking for a 100% fix. Oil has not made a difference. BBR suggest weak selector fork which is revised in the NC3 box.

  • @KN-kh3zh
    @KN-kh3zh Год назад

    Fab video guys 👍👊

  • @ThomasSwegsda-sd9zv
    @ThomasSwegsda-sd9zv 9 месяцев назад

    I went to order the mt90 and shockproof and it came in a pack labelled as gearbox service kit but it only has one bottle of mt90 and one shockproof and it says both go in the gearbox so I contacted redline by email and they said don’t use shockproof at all got any advice please

  • @ShiftyIntentions
    @ShiftyIntentions 5 месяцев назад

    The only trans fluid that should ever go in any NC MX5 transmission (and Mazda RX8 for that matter) is Ford Motorcraft XT-M5-QS. These transmissions are used in a variety of cars, and have brass syncros. For whatever reason, the Ford fluid seems to work best. It’s expensive, and sounds strange to put “Ford fluid in a Mazda,” but trust me… it’s worth it.

    • @ArtVandelayOfficial
      @ArtVandelayOfficial 11 дней назад +1

      The AZ6 transmission is nothing to do with Ford
      It's made my Aisin which is Toyota Japan
      It's used in the S15,Brz/86 and Altezza

  • @mathster
    @mathster Год назад

    How much oil for the dif please?

    • @philtree5668
      @philtree5668 11 месяцев назад

      I believe it's just under a US quart so about a liter?

  • @Music-Tech-Life
    @Music-Tech-Life Год назад +1

    What's the issue?

  • @limpethead
    @limpethead 6 месяцев назад

    I have bought a NC. And there is deffo something not right with the gears. Crunchy.

  • @johnelbro127
    @johnelbro127 Год назад +1

    Meant to say video was bit ‘foggy’. ✅✅

    • @HomeBuilt
      @HomeBuilt  Год назад

      I did notice that, dirty lens, amateurs 🤣

  • @vokesy78
    @vokesy78 10 месяцев назад +2

    Weak aluminium (aluminum) selector and a weak synchro are the problem. Oil will not fix. Speaking from experience.

    • @HomeBuilt
      @HomeBuilt  10 месяцев назад

      Oil has fixed it mate, even the owner has commented on the video to say how good the fix is.

  • @foggyf8662
    @foggyf8662 Год назад

    Hi Guys, I've been using Redline Oil for a year now in my 09 NC, it is fantastic. I also use Redline engine oil which is equally as good and it boosts your MPG by a good 5-6mpg, its expensive but excellent. Foggy