bring up an old topic... but it so very much worth paying $2.50 for the correct bolt from the dealership, assuming they can order it correctly. After 3 trips and 2 weeks, I finally got the right bolt. It came with sealer already on it. I compared it to the bolt I had in there and it was a good 6-7mm longer. It wasn't quite as long as a 40mm. There were just enough good threads in there to get just enough an amount of grip. I ordered many other bolts from the dealer previously and I very much regret not picking this one up as well.
On a side note, I bought some heli coils but I don't think that they would work as the depth of the cover is less than the depth of the heli coil. perhaps you could have started the heli coil in the oil pump but there is not that material there to work with it. And it makes it tough to get things tight with threads through both surfaces...
I also had "lost" #4 cylinder. I pulled the plugs and what I saw was abysmal. I had replaced them 5 years ago and hadn't put that many miles on these but I guess it was just the duration that did them in. runs a bit peppier now. I also broke down and paid $39 for a basic timing light since autozone wouldn't loan one out. Turns out I had it set at about 6 degrees, not 5 degrees BTDC. I set that right and it doesn't lug during acceleration now. I think I have either bad gas (in the truck) or a bad wire now because it started cutting out on me after 3500 rpms in 3rd 4th and 5th, cutting out worse as the gear goes higher. $27 for a set of wires from sparkplugs.com will hopefully do the trick.
It's still noisy up top. i have adjusted the valves I don't know how many times cold. I think I will try it warm next time to see if I can get them quiet. It still wants to leak a drop or so of oil but man I can definitely live with a drop less than a dime rather than a stain the size of a small dinner plate every time I drive it.
Just thought I would share some good news. <img src="/forums/images/graemlins/wink.gif" alt="" />