Figure 6-24. Loosening Nut on Camshaft or Balance Shaft.
(d) Then drill a hole straight through center of plug with a 1/4 inch drill (carboloy tip).
(e) Redrill with a 5/16 inch drill (carboloy tip), using existing hole as a guide.
(f) Tap hole with a 3/8 inch 16 tap.
(g) Thread a 3/8 inch 16 adaptor into plug. Then attach a slide hammer to adaptor and remove plug by
striking weight against handle.
(h) Insert a length of 3/8 inch steel rod in camshaft and drive out other plug.
Camshaft and balance shaft cleaning, inspection and repair
Wash all parts with cleaning solvent and dry thoroughly with compressed air.
Make sure hollow camshaft is thoroughly clean and free from sludge. All sludge accumulations, which
might restrict oil flow must be removed.
Inspection and Repair
Inspect cam lobes and cam bearing journals for scoring, scratches, or nicks. If cam lobes are
scored, the cam followers must also be inspected. Replace a defective camshaft.
Check camshaft lobe wear.
(a) Place a piece of square, hard material across lobe, parallel to shaft.
The material must touch both edges of the lobe.