RE:Can't get enough swing with the tq. wrench on #16 head bolt |
Subject: RE:Can't get enough swing with the tq. wrench on #16 head bolt by biggrizzly on 2008/1/24 21:23:40 Quote: biggrizzly, you do need to roll the threads in on new ARP bolts. On mine, I used lube and torqued the heads down by the bolt sequence. Then, I started with bolt 1, loosened and retorqued it 5 times, then took it out, installed permatex thread sealer (I heard of problems with leakage on ARP thread sealer, but it may be fine), lube under the bolt head and washer, then torqued the bolt down the final time. Then I went on to bolt number 2, and 3, and right through the sequence. I was surprised at, after the bolt is torqued down the first time, when you loosen it and torque it the second time, how much farther the wrench circles around to reach that torque. Dan, Thanks for this great information - I had missed this until today. After reading this and then going back to ARPs website, I see that I indeed missed this step of stretching the bolts. However I did intall and remove them twice. I guess what this means then is that I need to go ahead and cycle all of the bolts at least 3 to 4 more times and then before the final torque, remove the bolts and put some fresh sealer on the threads, since it has been several days since they have been torqued. I'm also concerned that the white ARP sealant is good enough for proper seal. I know it is designed for that, but I have read a couple of posts where people said it had leaked. Initially when I put on the sealer, and had to remove the head, I could see where the sealer had actually squeezed out in between the head and the gasket a bit around the holes. The second time I lessened the amount of sealant thinking I didn't want to overdo the sealant. Comments please. |