1999 Volvo Penta "WT" Models Workshop Manual, Page 186Get this manual

1999 Volvo Penta "WT" Models Workshop Manual, Page 186

4Valve Keys IT] a
Compress the valve spring, using 8062Compress the spring enough so the lower valve stem grooves can be clearly seenbApply small amount of grease to the area of the upper valve stem grooveAssemble the two valve keys using the grease to hold the keys in placeMake sure the keys seat properly in the valve stem groovescRelease the compressor toolMake sure the valve keys stay in placedRepeat the preceding steps on the remaining valvesj'TT','1"""11-"'"'"""CDRC6667

Measure:
1Valve spring installed height of each valve spring as follows:

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