Overhaling af bilmotor inkluderer hovedsageligt udskiftning af ventiler, stempler, cylinderforinger eller cylindre, slibende aksler osv. I henhold til standarden for generelle 4'ers butikker skal de udskiftes med 4 understøttende enheder, det vil sige, stempler, stempelringe, ventiler, ventilolieforseglinger, ventilguider, krumtapshynger, forbindelser, der er forbindelser, timing, timingbånd hjul.
If the chain is timed, it is necessary to change the timing chain, tensioner, in addition to machining, cylinder sleeve, grinding shaft, cold pressure conduit, but also need to replace the overhaul package, curved front oil seal, curved back oil seal, camshaft oil seal, oil pump, more research valve, etc., sometimes also need to replace external accessories such as clutch disc, etc. In short, it is necessary to replace the parts that are not sure to repair the engine to ensure motorens ydelse.
