[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]
On 16 Dec 2005 at 3:19, David Yaghoubian wrote: > I have several loose and leaking oil sump studs after installing a 1.5 qt > sump without using any thread sealant/locking agent (brilliant, I know). You really don't need ANY sealant on the threads since they would only allow leaks down into your new sump. Any leaks radially outward in the joint between the case and the sump should be sealed by the gasket between them. You just need a standard oil change gasket here. You DID put a gasket in there, didn't you? If you did, and it still leaks, you probably need to check the fit and make sure the surfaces are clean. The only problem with loose studs is that they might loosen and fall out, relieving the compression on the gasket. If they are actually loose and can work around, then Loctite would be in order to keep them stationary. If they are allowed to work around, then they will wear out the threads in the case and cause trouble. I don't see any problem with using the most permanent kind of Loctite you can find. They can all be removed later, some are just harder than others. Just clean it off the parts where you don't want it and clean all the oil off the area where it gets installed. Q-tips and alcohol or acetone are probably a good idea. The original studs are just an interference fit in the case, so there was no other sealant there, either. The problem with these studs is that people tend to abuse them and this leads to them coming loose. They can eventually strip out completely, which just leaves you with a giant oil leak. I have a jig that allows me to drill and tap these holes nice and straight for a Heli-Coil, which I install and then Loctite the stud back in. When I rebuild an engine, one of the things I sometimes do, especially if there are already loose studs, is replace all the studs with bolts with the heads inside the case. I have to be careful to adjust the lengths to get them just right, but then they will never loosen up or strip out. That right front stud is hard to replace, however. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~