Yikes that sounds complicated. I'm far from an engineer. To be honest, I'm not much of a mechanic either. My enthusiasm lies in the rust repair arena!
Sent from my iPhone > On Feb 19, 2015, at 3:18 PM, Randy Bennell via Mercedes > <mercedes@okiebenz.com> wrote: > > How about installing a water pressure gauge? > I believe you can get such a thing for outboard motors. > It could be tapped into the temperature sensor hole if nothing else. > > Or maybe some form of flow meter? Something that would indicate if pressure > changed or flow was different when the temperature gauge rises? > > Some little water wheel that would turn when the coolant is flowing and stop > or slow down if the flow lessens. > Does such a thing exist or who do we know that could make such a thing? Could > hook it into the heater hose fairly readily? > > RB > >> On 19/02/2015 2:03 PM, Curt Raymond via Mercedes wrote: >> Hi Randy, >> I'm with you on the chunk thats floating around causing this catastrophe, >> its the only thing that I can think of that would make an intermittent >> problem. The thermostat has been replaced at least twice, Dimitri and I both >> did it and I find the idea that we had 3 bad thermostats unlikely not the >> least of which because I tested two of them. >> I don't think it could be the wrong water pump, remember its had this pump >> for years. I drove it something like 25,000 miles on that pump. It could be >> a bad pump but Dimitri has been in there and checked it out and passed it. >> We've had it fail in a variety of weather conditions but the notable one is >> that it hasn't been much above freezing here for a month. A car doesn't need >> much of a cooling system at all below freezing... >> -Curt >> From: Randy Bennell via Mercedes <mercedes@okiebenz.com> >> To: Andrew Strasfogel <astrasfo...@gmail.com>; Mercedes Discussion List >> <mercedes@okiebenz.com> >> Sent: Thursday, February 19, 2015 2:57 PM >> Subject: Re: [MBZ] Overheating 240D more info >> I am curious about the lack of flow in the rad. >> If the thermostat works (and I believe it has been changed at least >> once) and the water pump is intact and working, then why would there be >> no flow? >> It has been suggested that the block passages are blocked. Is there only >> one sort of passage that could be blocked and stop the flow? If there is >> something loose inside that can move around, it might explain why it >> runs fine for a while and then just randomly overheats. The chunk might >> be such that it lays in the passage until something causes it to shift >> to an upright position for a while. >> >> I also wonder if there is any chance that the impeller on the pump is >> loose enough that it sometimes does not spin with the shaft and move fluid? >> >> Or, is there more than one sort of pump for these things and does it >> have the correct pump? One would think that would result in overheating >> most of the time, but maybe weather conditions make a difference? >> >> Things like this are interesting but not for the poor soul who owns the >> vehicle. >> >> RB >> >> >> >> _______________________________________ > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > All posts are the result of individual contributors and as such, those > individuals are responsible for the content of the post. The list owner has > no control over the content of the messages of each contributor. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
