Quote:
Originally Posted by TTV8M
I believe you will still have to drill the hole in the oil cap and connect the mechanical vacuum gauge. This is so you can measure the negative pressure (vacuum) in the crankcase. Remember from previous posts, it can't be less than -10. The happy spot is around -8 vacuum on idle.
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Instead of drilling into the oil cap, maybe you can drill into the oil filler neck. I might attempt this.