Tools Required
J 33049 Camshaft
Bearing Service Set
Important: A loose camshaft bearing may be caused by an enlarged, out of round
or damaged engine block bearing bore.
- Prior to bearing removal, inspect the camshaft bearings for loose fit
in the engine block bearing bores. Refer to
Camshaft and Bearings Cleaning and Inspection
.
- Repair or replace the components as required.
- Select the expanding driver (4-8)
and washer (2 or 3) from the tool usage information.
- Assemble the J 33049
.
- Insert the tool through the front of the engine block and into
the bearing.
- Tighten the expander assembly (15) nut until snug.
- Push the guide cone (1) into the front camshaft bearing
to align the tool.
- Drive the bearing from
the block bore.
Important: To remove the front camshaft bearing, operate the tool from the rear
of the block using the guide cone in the rear camshaft bearing bore.
- Repeat the above procedures to remove the remaining bearings.
Tool Usage Information
• |
The tool consists of a
guide cone (1), driving washers (2 or 3), expander
bearing drivers (4-8), driver bars (9 or 10),
expander jaws (11), expander sleeve (12), expander
cone (13), expander shaft (14), and expander assembly (15). |
• | Expander bearing driver number one inside diameter is 28.575-37.465 mm
(1.125-1.475 in) and is used with the expander assembly and
the small washer. |
• | Expander bearing driver number 2 inside diameter
is 37.465-43.18 mm (1.475-1.7 in) and is used
with number 1 expanding driver and the small washer. |
• | Expander bearing driver number 3 inside diameter
is 43.18-48.895 mm (1.7-1.925 in) and is used
with number 2 expanding driver and the large washer. |
• | Expander bearing driver number 4 inside diameter
is 48.895-54.61 mm (1.925-2.15 in) and is used
with number 3 expanding driver and the large washer. |
• | Expander bearing driver number 5 inside diameter
is 54.61-60.325 mm (2.15-2.375 in) and is used
with number 4 expanding driver and the large washer. |
• | Expander bearing driver number 6 inside diameter
is 60.325-68.326 mm (2.375-2.69 in) and is used
with number 5 expanding driver and the large washer. |
Tool Assembly and Operation
- Select the proper expanding driver and washer from the expanding
driver and washer information.
Important:
• | To install or remove the expanding driver, always push on or pull from
the ends. |
• | Pressure on the outside diameter may cause a bind against the rubber
expanding sleeve. |
- Place the expanding driver onto the expander assembly.
- Check to ensure that the separation lines between the segments
of the expanding driver align with the separation lines of the expander
assembly.
- Place the guide cone over the driving bar, with the small end
of the cone facing the driver assembly.
- Place the driving washer over the threaded portion of the expander
assembly.
- Screw the expander assembly, with driving washer, onto the driving
bar.
It may be necessary to install the driver bar extension
for removal of the inner bearings.
- Insert the tool into a
inner camshaft bearing and tighten until snug.
Operate the tool
from the front or rear of the engine block.
On some engine blocks,
the nut on the expander assembly is inaccessible except from either end.
In this case you must use a socket and extension to enlarge and
reduce the expander assembly.
- Slide the nylon cone into the front or rear camshaft bearing.
This will properly align the tool.
- Drive the bearing out of or into the engine block.
- Repeat the procedure for the additional inner bearings.
- For the 2 end bearings,
front and rear, remove the nylon cone and driver bar extension.
- Drive the bearings out of or into the engine block.