From: owner-diesel-benz-digest-at-digest.net (diesel-benz-digest) To: diesel-benz-digest-at-digest.net Subject: diesel-benz-digest V1 #357 Reply-To: diesel-benz-at-digest.net Sender: owner-diesel-benz-digest-at-digest.net Errors-To: owner-diesel-benz-digest-at-digest.net Precedence: bulk diesel-benz-digest Sunday, July 23 2000 Volume 01 : Number 357 Forum for Discussion of Diesel Mercedes Benz Automobiles John Meister Digest Coordinator Contents: Re: bypass oil filters Rotella T Re: bypass oil filters Timing chain issue on 1981 300SD Turbo Re: Shell Rotella T availability pictures from Saturday Re: bypass oil filters Diesel Benz Digest Home Page: http://www.digest.net/diesel-benz/ Send submissions to diesel-benz-digest-at-digest.net Send administrative requests to diesel-benz-digest-request-at-digest.net To unsubscribe, include the word unsubscribe by itself in the body of the message, unless you are sending the request from a different address than the one that appears on the list. Include the word help in a message to stag-digest-request to get a list of other majordomo commands. ---------------------------------------------------------------------- Date: Sat, 22 Jul 2000 15:41:33 -0700 From: Richard J Laue Subject: Re: bypass oil filters In clear, layman's language, can someone explain: 1. What is a "bypass oil filter?" 2. What is its purpose? Cheers - RJLaue ------------------------------ Date: Sat, 22 Jul 2000 18:56:04 -0400 (EDT) From: Evan Reisner Subject: Rotella T You can't *NOT* find Rotella at truck stops. Also, Auto Zone carries it. Evan ------------------------------ Date: Sat, 22 Jul 2000 15:57:52 -0700 (PDT) From: Dan Youngquist Subject: Re: bypass oil filters On Sat, 22 Jul 2000, Richard J Laue wrote: > In clear, layman's language, can someone explain: > > 1. What is a "bypass oil filter?" > > 2. What is its purpose? Your engine's regular oil filter has to filter _all_ the oil that's pumped through the engine; this is known as a "full flow" filter. It has to sacrifice fine filtering ability in favor of the necessary flow rate. So it can filter down to only around 30-40 microns, which leaves an awful lot of small stuff to wear your engine. A bypass filter, on the other hand, filters down to around 2 microns, but it doesn't have the flow rate necessary to be a full flow filter, which is where the "bypass" comes in. You bleed off a little oil from a high pressure source, for example the oil filter mount or the oil pressure sender, and send it to the bypass filter, then dump it back in at a low pressure point, like the valve cover. It takes the bypass filter maybe 5-10 minutes to see all the oil in the engine, which is plenty fast enough for it to do its job. A bypass filter does 2 things: (1) removes everything big enough to cause engine wear, and (2) keeps the oil clean so you don't have to change it as often. Dan Youngquist Homestead Products Grain mills, water filters, lanterns, simple living & outdoors items http://www.teleport.com/~dany tel# 208-926-7137 / fax# 208-926-7139 / dany-at-teleport.com ------------------------------ Date: Sat, 22 Jul 2000 14:58:55 -0400 From: Phil Risby Subject: Timing chain issue on 1981 300SD Turbo Grretings fellow Benzers Im a new kid on this block so please bear with me if this has already been asked Im doing a valve job on my Merc ( 81 300SD Turbo) Followed the instructions in my Haynes Manual, and left the timing chain in the engine held tight by a length of wire. Time has come to put the head back, its on there, timing chain all lined up and nothes in the right places,It seems as though it is too short though I cannot get the sprocket back on the cam shaft OK , so I pull out the tensioner, now it fits easy on to the camshaft BUT now I cant get the tensioner back in Something very odd is going on Ive turned the engine a full two turns to check that there are no kinks in the chain, all is fine If I assembl eit all, without the tensioner, then add the tensioner body , then the tensioner piston and spring, and then outer nut, it all goes together fine, but isnt the little ring seal on the end of the tensioner piston intended to run in the tensio0ner body, and not in the threads at the outer end of the tensioner body? Does anyone know what the heck Im talking about? Anyone ever done this jobn maybe could write to me privately and help me out here? I woud realy appreciate it Thanks Phil - -- Phil Risby C-TEK San Juan Puerto Rico ------------------------------ Date: Sat, 22 Jul 2000 20:42:13 -0500 From: Jim Hoffman Subject: Re: Shell Rotella T availability Matt, Wal-Mart definately stocks it in my area (S.E. Wisconsin) I get it there regularly. Jim/ '83 240d mmason wrote: > Hey, if there are any dino-oil devotees left on the list: > > Walked into one of the better-equipped Shell stations in the area (I was in > northern Westchester, NY, though my folks live farther down-county), and no > one in there had even HEARD of Rotella T... > > I got very lucky out at school (Iowa City, IA), and found enough for an oil > change in a Target store. Haven't seen it there before or since. > > Anyone know of a reliable source of Rotella T 15w40? I'm about to do some > online searching, so this may be moot in a few minutes... :) > > Matt -- '80 240D on overhauled engine, 15k miles ------------------------------ Date: Sun, 23 Jul 2000 00:04:16 -0700 From: john Subject: pictures from Saturday (this is the URL for the directory, two separate sets of pictures) http://www.wagoneers.com/john/FOTOS/July22-2000-AMC-n-PacificCoast "WhiteCaps and HubCaps AMC car show" at Ocean Shores, WA The picture that shows a contact sheet of all the pictures is: http://www.wagoneers.com/john/FOTOS/July22-2000-AMC-n-PacificCoast/AMC-2000- whitecaps-n-hubcaps/ALL-AMC-2000-pix.jpg and then our drive up the Coast. http://www.wagoneers.com/john/FOTOS/July22-2000-AMC-n-PacificCoast/PacificCo astDrive/ALL-OlympicPeninsula-July22-pix.jpg We left Snohomish, WA around 9am, drove down I-405 to I-5, then headed west at Olympia for Ocean Shores. I was looking for parts for my Jeep's AMC 258 engine... After not finding any parts, but seeing some nice old cars, we drove out onto the beach with the Jeep, did some antique shopping (well, I mostly sat in the truck) and then drove up the Coast the long way... up and around the Olympic Peninsula. :) Got home around 10:30pm... BUT, I'm very, very happy about getting 19.95 mpg with my 83 J10 Stepside. :) The BEST economy I've ever gotten with a Full Size Jeep. Even my 81 300D only got about 27mpg on the road, usually around 22 or so... Imagine, almost 20 mpg from a Full Size Jeep... wow. My little wagoneer hasn't gotten better than 18 or 19! john - ------------------------------------------------------ http://www.WAGONEERS.com/ http://www.wagoneers.com/think-about-this.html Snohomish, WA - where Jeeps don't rust, they mold... - ------------------------------------------------------- ------------------------------ Date: Sun, 23 Jul 2000 17:37:01 -0700 (PDT) From: Jerome Kaidor Subject: Re: bypass oil filters > On Sat, 22 Jul 2000, Richard J Laue wrote: > > A bypass filter, on the other hand, filters down to around 2 microns, **** Is this fine enough to remove the diesel "black" from the oil? - Jerry Kaidor ( jerry-at-tr2.com ) ------------------------------ End of diesel-benz-digest V1 #357 *********************************