kieronescort

has anybody got a guide on how to adjust the tappets on the ohv engine in a ka? i did some many years ago on a old metro but cannot remember how to do them all i remember is the rule of nine?

AndyST

Quickest way is handbrake on, stick car in 4th, jack up drivers side so wheel is off ground, you can now turn the engine over (ignition off) with the osf wheel.
With No.4 valves 'on the rock' ie 1 opening 1 closing, set No.1 tappets to spec, once done turn roadwheel until another pair are on the rock (should be No.2) and set No.3, then the reverse order ie No.1 on the rock-set No.4, No.3 on the rock, set No.2.
To summarise, 1 + 4 are paired, No. 2+3 are paired, whichever on is on the rock, you set it's pairs clearances. And no, I haven't got any paracetamol

stembo21

iTrader: (1)

good guide

kieronescort

ok ill give that a try i do understand that thanks

tabetha

You can't use the rule of nine on this engine like the a series metro as firing order is different, 1/3/4/2 on metro 1/2/4/3 on KA, so cam lobes different place, nice to see some young people know the rule of nine though.
If the tappet are still noisy it is possible to turn the rocker shaft after dismantling, by rotating 180 degrees, then turn left for right, this puts the unworn side lowest point, where the wear occurs, and will be good for another 60,000+.
When you do set the clerances pull on the tappet/rocker arm to eliminate any wear, will get a more accurate setting then.
There is a tool you can get called a "click adjust" that does this very thing, I may even have one, will likley never use it again, if I can find it I will donate it you you FOC.
Respekt!!
tabetha