Hyundai Engine >> LOOSE VALVE GUIDES
Hyundai Engine >> LOOSE VALVE GUIDES
Loose Valve Guides On
Hyundai 1.6L Engines
AERA member machine shops have reported finding loose valve guides in Hyundai 1.6L engine cylinder heads.
Hyundai has made oversize OD guides available for installation in cylinder heads where the original guide has become loose. The oversizes are .002 (.05mm), .010 (.25mm) and .020 (.50mm) and should be available at the local dealer under the following part numbers. Standard size OD valve guides are not available.
Intake Exhaust Cyl. Head Bore
Size Guide Part No. Guide Part No. in. (mm)
.002 MD000461 MD000471 .5138-.5145 (13.050-13.068mm)
.010 MD000462 MD000472 .5216-.5224 (13.249-13.269mm)
.025 MD000463 MD000473 .5315-.5323 (13.500-13.520mm)
The valve guide inside diameter should be finished to provide .0008-.0019 (.020-.048mm) of clearance for intake and .0020-.0033 (.050-.084mm) of clearance for the exhaust valve stem.
The installed valve guide height should be .539-.563 above the spring seat of the cylinder head.
The AERA Technical Committee
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