How to Adjust the Valves, Time the Cam & Install the Fly Wheel on the Opel CIH Engine in an Opel GT

GoinManta
December 17, 2020 at 11:17 AM
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Final video on building a CIH motor long block. Some final checks and valve adjustment for both Solid and Hydraulic lifters.

Note the 10 Bolt head cam button is now available again :

https://opelgtsource.com/search/3527/details

0:00 Intro

0:26 Front Cam Cover

4:28 Installing the Flywheel

7:45 Confirming Timing Alignment Marks for Cam and Crank

10:40 How to correct if you have the cam off a tooth and need to realign the cam on an assembled motor

11:45 Adjusting the Valves and Valve Lifters on an Opel CIH Motor.

NOTE: One thing I forgot to mention.. On the flywheel of the earlier motors there is ONE of the flywheel bolts marked with a "P". Note which hole it comes from. I believe it is the 1 O'Clock position when the flywheel is located properly. It needs to go back into the same spot. The "P" bolt has a minimally larger shaft and the hole it goes into is fractionally smaller to make for a tight fit.

While not "CRITICAL" that its in the right spot ( your motor will be fine.. ). If you do not mark the front pulley for TDC ( Opel did NOT.. with exception of the 2.4L EFI Pulley ) and are using the rear pointer to time your motor by TDC. The pointer could be off by upwards of 7 degrees in either direction.

Later models either did away with using the pointer and used the front pulley or in the case of the 2.4L the timing was fixed by the crank pulley sensor. I will be showing a few tricks on the timing and distributors when I do the next video.

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or call 1-804-503-0249

For more info on availability of custom motors, and Getrag 240 5 speeds.

Best sources for C.I.H. Parts :

Opel GT Source - https://www.opelgtsource.com/search?car_id=7 - 1(800) 673-5487

Opels Unlimited - https://www.facebook.com/Opels-Unlimited-105620217590246/ - 1-909-355-6735

Edelschmiede - https://www.edelschmiede.com/ ( Best option for those in Europe )

Background music courtesy of : The Clear - https://spoti.fi/3lMX34K