Hyundai 2.0L Timing Chain Tensioner Access Hole & Valve Clearance - EM-10

This is page EM-10 from a Hyundai/Kia Engine Mechanical System service manual section covering valve clearance inspection and adjustment. The page instructs the technician to check only the valves indicated for the No. 4 cylinder at TDC/compression and measure valve clearance, illustrated with a cylinder head diagram showing exhaust and intake valve locations. Step 4 details adjusting intake and exhaust valve clearance: setting the No. 1 cylinder to TDC/compression, marking the timing chain and camshaft timing sprockets, and removing the service hole bolt (A) of the timing chain cover — with a caution that this bolt must not be reused once assembled. The procedure continues with inserting special service tool SST (09240-2G000) into the timing chain cover service hole to release the tensioner ratchet, removing the front camshaft bearing cap, then removing the exhaust and intake camshaft bearing caps and camshafts. Cautions warn to hold the timing chain when disconnecting it from the camshaft sprocket, to tie down the chain so it doesn't move, and to avoid dropping anything inside the timing chain cover. Three illustration reference codes appear: SNFEM8080L, SNFEM8078D, SMGEM8006D, and SBKEM9124D. The reader learns the access-hole method for locking the chain tensioner during camshaft removal without removing the timing cover.