Half-shaft Cv-joint vibrations, bump steer after offset changes or car lowering and MeganRacing solutions for you.

Anyone having an s2k for over 100.000km has been familiar with a strange vibration under acceleration that starts to become apparent as the car gains milleage.

This is due to the rear half-shaft cv joints hurting the cv joint bucket. 

This will become apparent if you run the car lower or with larger offler rimms, changing the geometry slightly... making it what!? 70% of s2k owners?! maybe more.

The solution is to change those parts... or you can just shift the buckets from left to right (you don't really worry about a small vibration while reversing... and add a cv shaft spacer like the one from megan racing.

The same goes for the bump-steer kit. Drive your s2000 lowered or with bigger offset wheels, and you'll find it very twitshy when it comes to road irregularities. Again, negan racingnhas a bump-steer fix kit that corrects the steering rack angles by adding 2 metal pieces underneath the setting rack mounts.

My car is not lowered but the 5Zigen Proracer GN+ weels are a huge offset difference that gets even more noticeable with the Toyo r888 tires.

So:

Evidently, more parts are in the mail... and soon the s2k will have even more inprovements to report.

Stay tuned.

Timing chain tensioner... no more issues... like forever.

The s2000 has a known issue with the timming chain tensioner. It has little spring strength and after some heat cycles it starts to loose strength progressively, until you hear a rattle while idling. 

This means that, unless you're pulling it and passing oil pressure throught it, it's not producing enought force to counter the slack that the chain gains over time.

This becomes more evident if you drive with thinner oils or on warmer climates.

The solution ia to replace the load spring with something... well stiffer. However, assempling it back is a pain in the ass as the parts need some sort of force to counter the auto adjustment screw, but, the original part, has this as a sinple retainer and that is just a no-go.

Solutions? you can evidently replace with oem, and spend your life doing it every 30 to 50000km. You can transform the part yourself, or you can just buy a track ready part from TODA Racing engineering. Guess what I chose? oem parts out, racing parts in ...the usual!

Install is easy and you can do that in 10 mnts.

The rattle is gone, but that again, a factory part would be the same for a while...it's the future that will tell.

lovely!