CP-CARRILLO CATALOG

SECTION S-S Hardware & Accessories SPIRAL LOCKS R1.225 R1.225 1.245

5.33 .210 2.46 .097 4.45 .175

Z

1.055 CP-Carrillo Spiral Lock installation instructions: 1.160 1.335

U Next repeat the same procedure but start on the opposite side of where you started before. Walk the lock around again making sure it is securely locked into place. Please use caution and make sure the lock is flush all the way around. Sometimes the lock is damaged during installation or debris gets into the groove and the lock does not properly seat, leading to engine failure. It is very important to check all locks once they have been installed and once again a final time when the engine is being assembled. When spiral locks are used, often CP will use double spiral locks instead of single. Most shelf pistons that are designed to use spiral locks utilize 2 per side (4 per piston). For instance, an 8 cylinder motor would come with 32 spiral locks whereas a 4 cylinder would only come with 16. Wire locks only require one per side (2 per piston). WARNING: DO NOT overstretch Spiral Locks and DO NOT reuse Spiro Locks! Spiral Locks are made from high quality Carbon Steel and pre-tempered with uniform circular grain microstructure. Blued, oil dipped and sealed to be non-corrosive. U H The spiral lock is a thin clip that is shaped like a spring. The spiral lock is known for its excellent wrist pin retention ability. First you should gently pull apart the spiral lock, resembling a coil. This will allow you to easily “walk” the lock into the groove. Start a leading edge of a spiral lock at one of two places, 8 o’clock or 2 o’clock, then using a flathead mini screwdriver push the lock down into the groove and “walk” the lock around the hole until the entire lock is installed. See fig.  , Ž ,  and  . Make sure the lock is sitting flat and bottomed out against the inside edge of the lock groove. H I I .439 .430 .492 MIN C B B SECTION A-A 3.99 R.157 13.72 .540 8.13 .320 EXHAUST 8° R0.830



90°

3.18

.125

32 R1.260

5.09 .200

0.891

Ž

0.8660

0.120

6.86 .270

33.02 R1.300

15.39 .606



20.17 .794

33.02 R1.300

0.156

33.85 1.333

33.34 R1.313

7

21.59±0.025 10.80 .425

61.47

.850±.001

2.420

Part Number 812x042 CSL 827X043 CSL 866x042 CSL 875x042 CSL 892x042 CSL 927x042 CSL 927x073 CSL

Part Number 927x073 ESL 990x042 CSL 990x072 CSL 990X073 CSL 1031x050 CSL 1094x050 CSL

67.69

D D

C C

E E

A A

A

A

.006 P.D. A 

.450 REF

SECTION H-H

11.81

.465

32

1.400 ±.010

.003 A

.090 ±.010

.100 ±.010

.962

.937

A

32

.355 ±.005

30°

45°

.430 ±.010

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