The pump head on my father-in-law's power washer has a hairline crack along the threads on part of the pump that is causing it to leak/spray like crazy. I believe he over torqued the bolt. I have clearer images, but the photo gallery is not cooperating, so hopefully the little ones will work. Aside from spending $150 on a new pump, has anyone repaired something like this? I'm thinking JB Weld, but figured to see if anyone has done it successfully already. The pump head looks to be cast aluminum. Thanks!