An even easier way to check for head gasket leaks is to get the engine to operating temperature and (carefully) remove the radiator cap. Rev the engine and watch for bubbles in the radiator tank.
Dan --- On Sat, 2/27/10, Bob Fugler <bob.fug...@gmail.com> wrote: > From: Bob Fugler <bob.fug...@gmail.com> > Subject: Re: [MBZ] Overheating 1977 300D > To: mercedes@okiebenz.com > Date: Saturday, February 27, 2010, 8:13 PM > I had the same problem with but it > was with a gasser. I assume that it could > apply here. > I had a small head gasket leak so coolant was getting into > a cylinder. At > low rpms, the water pump could not keep up the system > pressure and the > coolant boiled. This showed up as overheating. At higher > rpms, the water > pump was able to keep the pressure up and avoid boiling the > coolant. I > believe that that my mechanic was able to find the problem > by testing each > cylinder with air pressure at the spark plug hole. > > Bob > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
