(go Timesert - apparently Helicoils can back out over time)
There should be a recess in the flange of that nut that will hold a beveled o-ring to seal it against the block. A normal o-ring won't seal properly, it has to be the original Honda part. Readily available (#91313-393-003)
I've got one broken off in my cb750. Can't get it out for shit, but it not moving at all. I've been riding with it. It definitely gets an oil drip tho. Sent from my iPhone using DO THE TON
Thanks man, I'll have to check which bolts I've tried but the insert on the engine was slightly tampered with and had some JB Weld on it. Thanks for the part number though. I tried eBay and Amazon for 91313-393-003 and I only came up with 91213-393-003? Anyone have one with the bolt included? Bueller? Bueller?Sent from my iPhone using DO THE TON
I have a spare bolt and nut, but no o-ring? It seems I was mistaken, and a plain 7.7x2.3 o-ring will do the job. http://www.davidsilverspares.co.uk/parts/by-part-number/hpart_91313393003/Only problem will be the delay in getting from Oz to you?Let me know if you want it?