Test with cylinder head removed

8RM 2463

1. Retain bolts in fitted order.
2. Wash all bolts, wipe dry and lightly oil threads.

Cylinder head bolts may be reused provided they pass one of the following tests.

Test with cylinder head removed

1. Carefully enter cylinder head bolts, DO NOT DROP. Screw each bolt into place until finger tight.
2. Measure distance from cylinder block face to under bolt head 'A' in illustration:
   97 mm or less, bolt may be reused.
   Over 97 mm, new bolt must be used.

Test with oil rail removed

1. Screw each bolt into oil rail until finger tight.
2. If full length of thread is engaged, bolt may be reused.
3. If full length of thread is not engaged, measure distance from top face of oil rail to under bolt head 'B' in illustration:
   378 mm or less, bolt may be reused.
   Over 378 mm, new bolt must be used.

CAUTION: A new oil rail must be fitted if a thread is damaged. Thread inserts (Helicoil) are not acceptable.