How would one confirm "leaky testing"? On Tue, Jul 6, 2010 at 4:24 PM, Rolf <r...@winmutt.com> wrote:
> Those numbers are way to low. Stuck rings, junk engine or leaky testing. > > -Rolf > > > On 07/06/2010 03:33 PM, andrew strasfogel wrote: > >> I need a second opinion on the following account of a compression test >> from >> the seller of a 1985 300TD wagon. He himself is a tech and administered >> the >> test (he's not a Mercedes tech). >> >> "Here are the compression results (the highest reading from each cylinder) >> with a warm engine, jumped battery [after a valve adjustment]. On #3 the >> adapter fitting was leaking so re-tested most if not all by snugging up >> the >> adapter with a socket first, this evened things out significantly. I did >> them on eight compression cycles each. They are lower than I would like >> to >> see but I believe it is because of a slow cranking speed [allegedly due to >> a >> tired starter motor]. There is, however, no way of really knowing this >> for >> certain unless the slow cranking [due to starter?] was replaced and >> another >> test was conducted. The readings: >> >> Cylinder 1- 220-225 >> 2- 220 >> 3- 200 >> 4- 210 >> 5- 230 >> >> Also noticed when adjusting the valves a very minute nick (1-2mm) on the >> edge/side of the #1 cam lobe. It is nothing that I would have any concern >> over at all but just want to disclose everything I see..." >> >> My mechanic says the readings are way too low to allow the engine to start >> in cold temps due to worn rings. He says a new engine rates at 400, and >> that 275 is the absolute limit. Any comments? BTW, the car has 300+ K >> miles, has been well maintained, and hasn't been driven for the past year >> due to rust issues. >> >> TIA, >> >> Andrew >> 1983 300TD >> 1985 300 semi-TD >> (I sold the 280SE 3.5) >> _______________________________________ >> 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 > _______________________________________ 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
