I have a book about turbocharging that I have had for years. One of the examples that they use in it is a kit that was available for the 240D. My recollection is that they said it not only improved the power but also the economy and the emissions. It ran cleaner, stronger, and more efficiently. How could that really hurt the engine much? Obiously, too much boost, and fuel, and heat etc could be detrimental but I doubt that is necessarily going to follow absolutely. I suggest that it could be a good thing if not taken too far.
Randy -----Original Message----- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com]on Behalf Of tyler Sent: Thursday, May 28, 2009 2:41 PM To: Mercedes Discussion List Subject: Re: [MBZ] Mercedes 240D Manual Turbocharged Just to play devils advocate (if you didn't notice, I like to argue...) what harm would the turbo cause that would result in premature failure? I know it would put extra stress on anything, but the whole engine and drivetrain of a 240D is severely overbuilt. Most older 240D engines I see finally die from low compression and severe blowby. With the turbo (even with some conservative fuel enrichment) the engine will burn cleaner, and have less abrasive soot to wear the pistons and rings. Perhaps the increased power would break something else, but it's also possible that it would not if the turbo system was built and tuned properly. Tyler Mitch Haley wrote: > rdeaf...@aol.com wrote: >> Hey Guys, >> I have a chance to offer on somebody I know who >> has a 1982 Black 240D manual transmission that has turbocharger. > > > Such a modification will reduce engine life if the fuel was turned up > to match the extra air going in. If the fuel wasn't turned up, then > the turbo is useless, but won't do any real harm either. Since the > engine has a life expectancy of hundreds of thousands of miles in > normal tune, it's your decision as to whether the extra power offsets > the shorter lifespan. If you like the car, and the engine is still in > good shape, and you're afraid of the turbo, you could always tune the > injection pump down to 70hp and it should be as reliable as any other > 240D. > > If you do buy this car, I strongly recommend that you install an > exhaust temperature gauge, preferably between the engine and the > turbo. You don't want to see more than 1200 degrees F on that gauge on > an ongoing basis, and any time above 1300 degrees should be very brief. > http://www.egauges.com/vdo_mult.asp?Type=Pyrometer&Series=Cockpit&Units=E > http://store.summitracing.com/partdetail.asp?autofilter=1&part=VDO%2D310953&N=700+115&autoview=sku > > > All of the above advice is pointless if somebody has gone to the > expense and bother of removing the 4 cylinder OM616 and replaced it > with a proper five cylinder OM617 turbo engine. > > Mitch _______________________________________ 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
