eva243•16d agoProlific Poster

Replaced a valve cover gasket on my 2012 Civic yesterday and somehow ended up with a coolant leak I didn't have before.

I torqued everything to spec in the manual but the lower intake manifold bolt snapped clean off at 12 ft-lbs, has anyone else had this happen on a D-series motor?

3 comments

3 Comments

angela19116d ago

Snapped bolt means the torque spec in the manual might be wrong for that motor.

richard_west516d ago

Snapped that bolt at 12 ft-lbs myself on my old Civic and I still have no idea how I managed it. Thought I was being careful but the moment I heard that crack, I just stood there staring at the broken end like it had personally offended me. Ended up drilling it out and using a helicoil kit while muttering a lot of colorful words under my breath. Made a total mess of my garage floor with coolant and swear words that day. Did you have any luck getting the broken piece out?

lucas_price8316d agoMost Upvoted

Angie, have you actually looked up the factory torque spec for those lower intake bolts on a D17? I've seen three different numbers floating around online depending which year manual you grab.