Project 240SX Overhaul Journal (Day 26)
Sep 8, 2008 240sx Build Journals
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Day 26 and there are a lot of miscellaneous things creeping up. First, I am making a few changes to the oil system in the cylinder head of the CA18DET. Below are a few random pics and I will follow this up with a full guide that explains the method and reason to add this feature the CA18DET. (I am swamped right now so expect to see this in 2 to 3 weeks.) Also, it turns out my torque wrench went south and as a result, I had to fix a broken off bolt from the #4 cam cap. Not fun. And finally, with the removal of the head, I was able to document several procedures such as replacing the timing belt which is an oft asked question by new ca owners. So this guide will be added soon also.
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- The offender is the cam cap bolt. These snap very easily as they are only supposed to see 8.5 ft-lbs torque. This is how I learned my torque wrench was out of spec.
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- Using a grinder, you have to taper the end of a deep 13mm socket in order to reach the head bolts.
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- The cylinder head removed from the CA18DET.
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- The two plugs that need to be removed from the back of the head to add the rear oil drain.
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- Pic showing the removed plugs. (Note, you can now see the valves.)
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- A thread plug is tapped in place on each side.
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- The same process has been done on the block on cylinder heads original block return.
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- Removing the original return from the intake side valve cover.
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- My head gasket was still in great shape so I reused it by spraying it with copper gasket spray.