Astro Van M L4-151 2.5L (1985)
Torque Angle Wrench
J-38188
Head Bolt Kit:
Cylinder Head Bolt Extractor
J-38188-1
Drill Guide 3/16"
J-38188-2
Drill Bit 3/16"
J-38188-3
Center Drill Guide
J-38188-4
Center Drill Bit
J-38188-5
The portion of the unbroken bolt remaining in the cylinder block may be extracted without removing the cylinder head. The procedure for extracting any
broken head bolt is as follows:
FIGURE 2
Procedure:
1.
Remove the top portion of the broken bolt from the engine.
2.
Insert tool J-38188-4 into the open cylinder head bolt hole.
3.
Insert tool J-38188-5 into a reversible electric drill.
IMPORTANT:
DO NOT USE AN AIR-POWERED DRILL - THE SPEED IS TOO FAST AND WILL CAUSE PREMATURE DRILL BIT
FAILURE.
4.
Referring to FIGURE 2, use J38188-5 to start a hole in the bolt.
IMPORTANT:
RECOMMENDED HOLE DEPTH IS .280 in. (7 mm) MINIMUM. THE DRILL BIT MAY BE MARKED WITH A WAX
PENCIL TO GAUGE THE DEPTH OF THE DRILLED HOLE. BLOW OUT DEBRIS FROM THE HOLE.
5.
Replace tool J-38188-4 with tool J-38188-2.
6.
Insert tool J-38188-3 into electric drill.
IMPORTANT:
TOOL J-38188-3 IS A LEFT-HAND TWIST DRILL - IT IS CRITICAL THAT THE ROTATION OF THE ELECTRIC