Mack E7 Service Manual page 205

5-101.bk Page 47 Friday, March 17, 2006 11:05 AM
Other changes include the use of new shouldered
oil pan bolts which bottom on the cylinder block
rather than the oil pan, and rubber isolators
installed between the heads of the pan bolts and
the oil pan. Together, these isolators and the
isolating gasket eliminate metal-to-metal contact
between the bolts and the oil pan, significantly
1
5
FIBER GASKET ARRANGEMENT
1. Old cylinder block
2. Fiber gasket
3. Steel reinforcement strip
4. Flange head screw
5. Oil pan
200 ENGINE ASSEMBLY
reducing the amount of engine vibration
transmitted to the pan.
The illustration below, Figure 6-54, shows both
the fiber oil pan gasket arrangement and the new
isolating gasket arrangement.
6
2
3
4
ISOLATING GASKET ARRANGEMENT
Figure 6-54 — Oil Pan Gasket Arrangements
6. New cylinder block
7. New thicker gasket
8. Isolator
9. New flanged bolt
10. Isolator oil pan
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8
9
10
200574a
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