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“With [Engine] Pack 23, you will assemble the Camshaft and Oil Pump Chains and attach them to your NISSAN GT-R (R35) Engine.”
Contents
Parts
Instructions for Packs 23-26 (Digital Version – click to download PDF)
Build
Camshaft Chains
Step 01
Retrieve a Camshaft Sprocket B and Camshaft Sprocket C from the previous pack. Fit these Sprockets inside one of the Camshaft Chains.
Note that the two Camshaft Chains are slightly smaller than the Oil Pump Chain – be sure to use the correct one here. Also, ensure the raised center sections of the Sprockets are facing up and the thicker Camshaft Sprocket B is to the right, as shown:
Step 02
Retrieve your engine assembly from the previous pack. Fit this Camshaft Chain assembly onto the keyed posts of the Right Camshafts, aligning the sprockets as shown:
Secure the Camshaft Sprocket C to the end of the Right Exhaust Camshaft with one (1) NM screw.
Do not over-tighten this screw as the sprocket should be able to rotate freely. This is also your friendly reminder to try using 3-in-One Oil on all screws going into metal:
Step 03
Retrieve a Camshaft Sprocket A from the previous pack and fit it onto the two pins of the Camshaft Sprocket B. Secure this sprocket into place with one (1) HM screw, as shown:
Step 04
Repeating this process again, retrieve the remaining Camshaft Sprocket B and Camshaft Sprocket C from the previous pack. Fit these Sprockets inside the remaining Camshaft Chain.
Be sure the raised center sections of the Sprockets are facing up and the thicker Camshaft Sprocket B is to the left, as shown:
Step 05
Fit this Camshaft Chain assembly onto the keyed posts of the Left Camshafts, aligning the sprockets as shown:
Secure the Camshaft Sprocket C to the end of the Left Exhaust Camshaft with one (1) NM screw.
Remember, do not over-tighten this screw as the sprocket should be able to rotate freely:
Step 06
Retrieve your remaining Camshaft Sprocket A from the previous pack and fit it onto the two pins of the Camshaft Sprocket B. Secure this sprocket into place with one (1) HM screw, as shown:
Step 07
Retrieve your Oil Pump Sprocket A and Oil Pump Sprocket B from the previous pack. Fit these Sprockets inside the Oil Pump Chain, as shown:
Step 08
Fit the larger Oil Pump Sprocket A of this Oil Pump Chain assembly onto the keyed post of the Front Bearing Crankshaft, and fit the smaller Oil Pump Sprocket B onto the post of the Oil Pump, as shown:
Secure the Oil Pump Sprocket B to the Oil Pump post with one (1) DP screw.
Remember, do not over-tighten this screw as the sprocket should be able to rotate freely. Also, on my model, I ended up flipping the Oil Pump Sprocket A around in the next pack as it was rubbing on my Oil Pump Pipe (see the next pack for details):
Thoughts
I am so grateful that these Chains are already pre-assembled – I would not have wanted to build these things manually! They are a nice combination of plastic pins held together with stainless steel links, so they are quite realistic.
Next Up
Engine 24 – Primary Timing Chain