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Showing results for tags 'rocker cover'.
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Today was the day to get on with some necessary engine work. The 150,000-mile EJ202 has been stuttering at low revs and generally felt sluggish. The PO told me that the CEL light came on every so often due to the plugs needing renewal. I quietly wondered why he hadn’t done it. The leads are brand new NGK, and the distributor has been replaced by an aftermarket one. Luckily the original Hitachi remained in a box in the trunk so I have reinstalled that one. I didn’t have to search for long to discover the spark plug problem. Oil on the lead boots is due to one thing; the plug tube oil seals in the rocker cover. The plugs were in a state. No.2 cyl: so here’s my process for changing the spark plugs and seals, and checking the valve clearance whilst the covers are off: 1. put the front wheels on blocks to get underneath. 2. Remove the under guard. 3. Remove the air intake assembly, Battery and screen wash bottle. 4. Give the area a good washing as dirt must not enter the open heads. 5. I drained the oil. I believe it is not necessary, but I wanted to change it anyway. 6. I also removed the radiator fans and coolant overflow to gain access to the crank pulley, to be able to rotate the engine 90 degrees at a time for the valve clearance service. Now we are about ready to get on with the job...
