Hi I'm trying to do a full coolant replacement on my 91 civic with a jdm 3 stage vtec motor and I can't find the coolant drain plug anywhere! I even tried searching online and couldn't find any pics if anyone has done a coolant change on a d15 or knows where the plug is please lmk! Any help would be greatly appreciated!!

also forgot to mention that im kinda a car newb idek if this is the right place to ask for help xp

 

Huge bolt on rear side of block. Can't miss it.

The bolt is a bitch unless you have a good impact wrench.

 

​​​​thannks bro but is that for my exact motor n is it toward the bottom? can't find it anywhere 😅
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Take a picture of the back of your engine and post it here... we can point you in the right direction.