Cylinder Head Warpage; Cylinder Head Disassembly - Polaris Trail Blazer Service Manual

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ES33PF, EH50PL Engine

Engine Disassembly, Cont.

Cylinder Head Warpage

1. Lay a straight edge across the surface of the cylinder

head at several different points and measure

warpage by inserting a feeler gauge between the

straight edge and the cylinder head surface. If

warpage exceeds the service limit, replace the

cylinder head.

Cylinder Head Warpage Limit:

.002" (.05 mm)

WARNING: Wear eye protection or a face shield during

cylinder head disassembly and reassembly.

NOTE: Keep all parts in order with respect to their location

in the cylinder head. The EH50 cylinder head is shown in

examples throughout cylinder head service section. The

ES33 cylinder head is similar to EH50.

1. Using a valve spring compressor, compress the valve

spring and remove the split keeper.

prevent loss of tension, do not compress the valve

spring more than necessary.

2. Remove spring retainer and spring.

NOTE:The valve springs should be positioned with the

tightly wound coils against the cylinder head on progres-

sively wound springs (A).

3. Push valve out, keeping it in order for reassembly in

the same guide.

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