R6demon - Viewing Profile: Reputation - MX5Nutz Forum

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Member Since 14 Jun 2018
Offline Last Active Aug 13 2020 01:56 PM

#4520069 4.1 To 3.6 (Fingers Crossed)

Posted by R6demon on 18 March 2020 - 08:38 AM


Apologies for the thread Necro, but thank you to Martin Y the OP for this thread, it was exceptionally useful for sorting out my MK1 Eunos speedo misreading by around 10MPH following a swap to a 3.6 final drive.


Just a couple of bits to add, the parts are all still available and are as follows:

Parts needed

M502-17-441 (19 tooth gear moulded onto shaft) - available £20-39
1011-17-442A (aluminum sleeve that's offset for the smaller diameter gears) £18-64
9922-20-214 (small roll pin to lock shaft and gear into sleeve) £1-14
9958-60-8166 (internal oil seal for shaft to sleeve) £3-38 
1011-17-443 replaces incorrect P/N  1110-17-443 (o-ring to seal sleeve to transmission) £4-47
Points worth noting:
1)  you will lose some gearbox oil during fitment, I jacked up the rear of the vehicle as much as possible to limit this to a few MM.
2)  To limit this further you could build the replacement unit first so that it is a straight swap.
3) Take all of the pieces listed above slide M502-17-441 into 1011-17-442A and fit the roll pin 9922-20-214. I added some oil to the roll pin and used a Pin hammer to do this, insert the smaller chamfered end into the hole and tap through, you can use a cut down small allen key as a drift!
4) insert 9958-60-8166 into the bottom of 1011-17-442A noting that the FLAT face goes in first, I used a small socket to ensure that it went all the way in
5) fit 1011-17-443 to the outside of the sleeve
A couple of pictures
Pic 1 shows the gear drive you will remove next to the new body:
Pic 2 shows 9958-60-8166 inserted inside the body, note that I have inserted it so that the flat face goes up inside the body
Pic 3 shows the assembled unit with 1011-17-443 and the roll pin in place.


I hope that makes it even easier for someone else!


BTW the speedo now reads around 2mph under at 70mph which is perfect! 30 is spot on matching the GPS


I am also running a 6 speed gearbox and have filled it with filled with Castrol Syntrans Multivehicle 75W-90, a massive difference to the slickness of gearchanges!

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#4515889 Moving My Greddy Air Filter Setup

Posted by R6demon on 30 October 2019 - 08:04 AM

HI Guys, just to close this thread out, I am now back from AUS and have changed the Airfilter for a RAM air cone filter fitted on a silicon hose.  I trimmed this down to prevent the filter touching the IC pipework and I think it sits quite nicely now.


I also fitted the DaveFab slam panel which tidies up the front end.



No notable difference in performance as you can imagine, but cooler air must make the engine happier!! :)

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#4480641 New Vehicle Suspension (?) Issues?

Posted by R6demon on 21 June 2018 - 12:38 PM

No problem Wannabe, thats why I will always be a fan of forums over facebook groups.  there is a wealth of knowledge in these groups and so long as people close out their threads, future generations will be able to maintain these classics in years to come!  New sliders are ready for collection today, I managed to negotiate a trade discount with the local Main dealer to keep things competitive ;)


New rear  Pagid discs and pads fitted last night, that screw out adjuster is fun!!!!  :-o  Keep turning it even after it falls out!

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