Go to the Gen2 Grand Vitara (99~05) forum and look at the very top - there's a thread with links to downloadable manuals - get the manual for the Grand Vitara - it includes a section for the G16B engine which will have all the details you're asking about, plus more.
98 - 1.8 Mitsubishi Pajero iO
98 - 2.0 Suzuki Grand Vitara - SQ420
05 - 2.0 Suzuki Grand Vitara - JB420
15 - 2.4 Kia Sportage