SECTION 11G
EXHAUST SYSTEM
sults in a loss in the torque on the hold
DESCRIPTION
down crab nut.
This engine is equipped with an air
Also a special washer is used at the cen-
cooled exhaust manifold. The exhaust
ter portions of the exhaust manifolds.
manifold is attached to studs located be-
This washer will more accurately control
tween the exhaust ports and the outer
the seating area for the 7/16" nut or
side of the two end ports in the cylinder
bolt.
head. Special washers and nuts secure
the manifold to the cylinder head.
R e m o v e Exhaust Manifold
EXHAUST MANIFOLD
Remove the manifold as follows:
1. Disconnect the exhaust pipe from the
General
exhaust manifold.
The air cooled exhaust manifold is
mounted on the cylinder head (see
2. Remove the nuts and bevel washers
that attach the exhaust manifold to the
cylinder head. It is suggested that, as
An exhaust manifold hold down crab is
a safety measure, the nuts be loosened
used. The hold down crab is made of a
but left on the center stud until all of
hardened steel. This will minimize wear
the other nuts and washers have been
removed.
and gouging of the manifold, crab and
cylinder head mating surfaces, which re-
Figure 11G-1. Air Cooled Exhaust Manifold Mounting
Section 11G
