Contents Section: OHC Petrol Engine All sections

Valve Guide, Ream Opel Frontera A

Valve Guide, Ream

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Diameter of valve guide - use Gauge MKM - 571 - B and commercially available inside micrometer.

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Valve oversizes may already be fitted in production.

Oversize code is stamped on valve guide and valve stem end with following code numbers / letters - see 'Technical Data'.
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Size Reamer Code

Production Service

Normal none K

0.075 KM - 664 - 1 1 K1

0.150 KM - 664 - 2 2 K2

Ream valve guide from upper side of cylinder head to next oversize. After reaming, cross out code and emboss with new code.
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