You said back? he didnt fix yours the first time either? Let me guess, did you have an \"airpocket\" HA- BS But, If its free why not- those new inserts he uses are because of me. I demanded the monster inserts.. Time Serts Do not hold up- and never have. The big ones go into the virgin aluminum and have a better bite. Just dont give him a nickel.....If he did work on it, do me a favor.....have your mechanic take off the front valve cover (its easy) then remove one or two head bolts.... look in there to see if there are \"any inserts at all\" I'll betcha there isnt. I believe he'd only install inserts if he see's a flakey head bolt when he was \"rebuilding\" --- with mine, he didnt mill the cylinder heads the first time either. So what happens is, when he re-tightens the head thats when the head bolts would start to strip out. All this to save what......$100 bucks on a 5000 rebuild? Also, if you find no inserts- why should you then pay for labor? It is clearly advertised he is frantic over doing that as part of the supposed rebuild.