Mack E7 - [213 FP] Cylinder Head Cup Plugs

200 BENCH PROCEDURES
Page 5-41
[213 FP] Cylinder Head Cup Plugs
DESCRIPTION
The cylinder head has two different-size cup
plugs: 13/16 inch (20.64 mm) and 1-1/16 inch
(26.99 mm).
CYLINDER HEAD CUP PLUG INSTALLATION
1. Clean cup bore thoroughly.
2. Use Loctite 277 sealer, or equivalent, and
apply to cup plug and cup plug bore in head.
Refer to Figure 5-54.
3. Install cup plugs in cylinder head, using
cylinder head core plug installer J 34684 for
13/16-inch cup plugs, and cylinder head
core plug installer J 34687 for 1-1/16 inch
cup plugs.
Cup should be installed flush with machined
surface to 0.020 inch (0.508 mm) below cylinder
head.
Figure 5-54 — Cylinder Head Cup Plug Installation
1. Cup plug 2. Cup plug installer
5-101.bk Page 41 Friday, March 17, 2006 11:05 AM