Checking Valve Guides for Wear


Special Tools: P 21b Valve guide plug gauge


Replacing of valve guides see 35 EN.

Clearance between valve guide bore and valve stem is:

Intake = 0.035 - 0.060 mm ( 0.0014in to 0.0024in) Exhaust = 0.055 - 0.080 tnm (0.0022in to 0.0031in)

Valve guide bores should be measured with a valve guide plug gauge of 10 mm diameter (.394in).

When installing the sealing caps, it should be noted that first the valve is pushed into the valve guide and then the sealing cap pulled over the valve guide until the base of the cap comes to rest against the valve guide.
Last modified: Thu, 09 Dec 2004


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