Jims USA Twin Cam Racekit Box 1 1208-1351 User Manual
Page 8
555 Dawson Drive, Camarillo, CA 93012 Phone 805-482-6913 • Fax 805-482-7422
7
Rev I
9-12
No.1208-1351
A Division of Thiessen Products, INC
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• Apply a small amount of moly lube, about 1/16” diameter drop, to the 1/4”
dowel pin, this will help stop the pin from falling out when removing the head
bolt from the stud.
• Install the lubed dowel pin into a short head bolt.
• Set the longer studs out of easy reach while you install the short ones.
• Screw a short stud into the head bolt until stopped by the dowel pin.
• Use this assembly to drive the short studs into the right (cam) side of the engine
case. See Fig.9.
• Apply one (1) small drop of Loctite
®
620 to the first four (4) threads of one side
of the 7/16” case stud threads and then apply one more drop, 180 degrees, on
the other side of the stud’s first four (4) threads. See Fig.10.
• Apply one (1) small drop of Loctite
®
620 to the threads of the center stud holes
on the right (cam) side of the case. Then apply a second drop, 180 degrees, on
the other side of the same case stud hole. See Fig.11.
• Drive both short studs, as pictured, until the distance measured with your
calipers between the case and the bottom of the head bolt is 4.650”+/- .030”
above the case deck (gasket surface of the short block). See Fig.12.
• Verify the top of each stud without the head bolt attached should protrude
5.250” +/- .030” from the case deck. See Fig.13.
• Repeat procedure for the remaining 6 long studs.
• Remove any visible Loctite with a clean cloth from gasket surface.
IMPORTANT NOTE: Use a head bolt and the furnished cylinder dowel
pin No.1286-1387 to drive the studs.
Fig.9- Install short studs here
Fig.10 - Apply supplied thread
lock
Fig.11- Apply supplied thread
lock
Fig.12 - Measure stud height
Fig.13- Measure stud height
CAUTION: Loctite 620 sets extremely quick, do not stop until the
stud has been installed to the correct height.