Share with you my experience. If you factor in your time, then the most efficient way is just replace the whole cover (cost RM100++). You can do it yourself at home, just need M10 spanner.

Yes it is possible to just replace just the seals but it is a real pain. I tried to save cost with mine too. The seals are sandwiched between the aluminium rocker cover and a steel plate, which is a stupid design to begin with. They are held together by aluminium welds. You need to break these welds, remove the plate, replace the seals and weld the plate back on. As they are aluminium welds, you'll need to find someone who can weld aluminium (radiator shops are the most common). After you go through all this hassle, you'll probably find that it's still leaking, as it's very difficult to weld the steel plate tight enough.

If you need a temporary fix, you may remove the cover, clean and degrease it carefully and cover all the mating surfaces with gasket-maker. This will only last awhile, though.

I suggest you just get a new rocker cover. To replace it, remove the intake duct and whatever else attached to the cover. Remove the black spark plug cover and the igniters. Then unbolt the cover itself (should be 5 x M10 bolts, I believe). Untighten them together, don't just remove one by one. Remove the rocker cover and put new one. When you tighten the bolts, DO NOT over-tighten. These are aluminium parts, so it will be soft (easy to tighten). It will keep getting tighter and tighter until it breaks suddenly. Lightly hand tight is enough.

Or you could just get a shop to do it. It is a 15 minute job so don't let them scam you.

Bear in mind, due to the rubbish design, your brand new cover might still leak (happened to me). So test it out after you install it and make sure you keep all the receipts.

This post has been edited by mrao: Jan 23 2016, 11:53 AM

wta: Will Myvi dampers (shock absorber) fit on a Kelisa? Or are there any good height adjustable dampers for Kelisa?

Recently got some Tanabe (DF210) lowering springs. They are made for MYVI but was too low for the original owner so I installed them on my Kelisa. They are a big improvement over stock and only drop ~10mm. Problem is they are longer than stock and need to be compressed quite abit before they go in, thus I am losing much of the 'comfort' portion of these coils.

I don't want to cut off the lower spring perch and weld it back lower on the current shocks (dangerous!). Was wondering if stock Myvi shocks would fit. Otherwise I I'm willing to spend a little more to get some height adjustable shocks, just not sure what's out there on the market.