see the one upper left of the crank? is that an oil passage plug? if so mine is leaking. what should i put on it and what size is that hex head?

 

help!!

 

Yes. It's a plug for a pressurized oil passage that's used to feed oil to the block and head.

You use a 14mm allen-head, internally-wrenched socket with an impact or a break bar. It's on there pretty tight, so an impact is highly recommended to loosen it.

I think it's a 28mm crush washer. You can use a crush washer from a '88 to '91 Prelude's crankcase vent plugs. I don't think parts diagrams show them for these engines.

 

are these parts available at a parts store? or dealership item?

 

I haven't found any place other than a dealership that has them.

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