You have a point there, most over the road truck drivers will tell you a diesel is at it best when it hauling a heavy load. I drive most of my verhicles fairly hard and never had a problem with carbon build up
"Hendrik Riessen" <[EMAIL PROTECTED]> wrote: >Gday Diesel heads, > >First of all there is a difference for performing an Italian tune up between >petrol and diesel motors. >Petrol(gas in your language) engines if not put under load every now and >again will carbon up, mostly due to not getting enough heat into the >engine(incomplete combustion). A classic example is the M110 engine which is >designed for high speed touring(on the autobahn) and if used by grandma to >go to church at a leisurely pace will build up a lot of gunk in the engine. >Diesel motors on the other hand will develop cylinder glazing(also caused by >incomplete combustion) which is basically a build up of material on the >cylinder walls. >The problem with cylinder glazing is that the piston rings will not seal as >well, resulting in more oil usage and a drop in performance. >To get rid of this glazing a diesel will have to be put under heavy load for >an extended period of time and just running the motor at full revs will not >always achieve this because it is not so much the amount of times a minute >the piston goes up and down but the amount of pressure put on the piston >rings that is the critical element. >A good example is that if you have a petrol motor a high speed run from >Munich to Hamburg will do wonders but a diesel motor will get good results >from being driven through the alps(especially if it is towing a heavy tailer >or caravan). >I very excessive cases of cylinder glazing the only way to cure it is to >disassemble the motor and hone the bore. >Another contributor to cylinder glazing is extended periods of idling, such >as commuting to work in slow stop go traffic. > >Hendrik >82 U1300L with some cylinder glazing(propably due to extended periods of >idling) >82 230E running pretty good due to small engine in heavy car and getting >it's legs stretched every now and then >87 Nissan patrol with no glazing due to a 3.3 litre motor pulling a heavy >vehicle up lots of hills > >----- Original Message ----- >From: "redghost" <[EMAIL PROTECTED]> >To: "Mercedes list" <[EMAIL PROTECTED]> >Sent: Saturday, September 10, 2005 5:34 AM >Subject: [MBZ] Please chime in > > >> http://mbca.cartama.net/showthread.php?t=8157&goto=newpost >> >> If anybody, such as Marshall or others, well behaved now, could check >> this thread and offer an opinion on Italian Tune ups >> >> -- >> Clay >> Seattle Bioburner >> >> 1972 220D - Gump >> 1995 E300D - Cleo >> 1987 300SDL - POS - DOA >> The FSM would drive a Diesel Benz >> >> >> _______________________________________ >> For used parts email [EMAIL PROTECTED] >> >> To Unsubscribe or change delivery options go to: >> http://striplin.net/mailman/listinfo/mercedes_striplin.net >> >> >> -- >> No virus found in this incoming message. >> Checked by AVG Anti-Virus. >> Version: 7.0.338 / Virus Database: 267.10.18/90 - Release Date: 5/09/2005 >> > > >_______________________________________ >For used parts email [EMAIL PROTECTED] > >To Unsubscribe or change delivery options go to: >http://striplin.net/mailman/listinfo/mercedes_striplin.net > -- 69 280 SEL 120,000 Miles 72 350SL 108,000 Miles 2004 VW Passat 4 Motion 1999 Mazda Miata __________________________________________________________________ Switch to Netscape Internet Service. As low as $9.95 a month -- Sign up today at http://isp.netscape.com/register Netscape. Just the Net You Need. New! Netscape Toolbar for Internet Explorer Search from anywhere on the Web and block those annoying pop-ups. Download now at http://channels.netscape.com/ns/search/install.jsp
