From: owner-diesel-benz-digest-at-digest.net (diesel-benz-digest) To: diesel-benz-digest-at-digest.net Subject: diesel-benz-digest V1 #820 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, October 20 2002 Volume 01 : Number 820 Forum for Discussion of Diesel Mercedes Benz Automobiles Derick Amburgey Digest Coordinator Contents: Re: timing chain Re: timing chain Re: timing chain Re: timing chain new powerplant for hondas... :) 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: 19 Oct 2002 08:50:08 -0400 From: "Gary, Orlando" Subject: Re: timing chain Mike, There are three basic components to the timing chain... The chain, tensioner, and chain guide. Did you measure chain stretch? This too will dictate which way you go. I just checked the chain on my '86 109d 2.5 and it is at 0! It has 175K mi. Normally the chain guides need not be replaced unless your engine is at high miles. The tensioner can be replaced from outside the engine. If you look just forward of the exhaust manifold, on the right side cover of the timing chain, you will see a 1-1/2 in plug looking device. That's it. The tensioner is supposed to hold tension when the engine is off to prevent the noises you hear. Just spin out the old, and spin in the new. They are very inexpensive. - -Gary, Orlando 1986 MB 190D 2.5 On Sat, 2002-10-19 at 08:12, Michael Aimino wrote: > Howdy. My 300SD recently developed a strange rattle. Once warmed up, > at idle, there's a constant rattling under the hood. If I touch the > accelerator, the rattle goes away. I noticed that when the oil > pressure goes up, the rattle went away, so I suspected my timing > chain was loose. I took my camshaft cover off and the timing chain is > rather loose (I can easily move it a bit off of the tensioner rail). > > Question: Timing chain replacement? Chain tensioner? Or both? I'd > like to do this in one shot. ;-> Thanks. > > Kind Regards, > Mike Aimino > 1983 300TD > 1981 300SD ------------------------------ Date: Sat, 19 Oct 2002 11:03:23 -0400 From: "Michael Aimino" Subject: Re: timing chain Hi Gary. Thank you for the info. I'm pretty sure now that the problem is the tensioner. The pressure bolt on the chain tensioner can be moved back when the engine is stopped. The MBZ repair CD says this should not happen. Sounds like a defective chain tensioner. Also, the timing marks on the flywheel and the cam sproket are matching up, so it doesn't look like the chain is stretched. Does it sound like I'm on the right track? Thanks! Mike On 19 Oct 02, at 8:50, Gary, Orlando wrote: > Mike, > There are three basic components to the timing chain... The chain, > tensioner, and chain guide. > > Did you measure chain stretch? This too will dictate which way you go. > I just checked the chain on my '86 109d 2.5 and it is at 0! It has > 175K mi. > > Normally the chain guides need not be replaced unless your engine is > at high miles. > > The tensioner can be replaced from outside the engine. If you look > just forward of the exhaust manifold, on the right side cover of the > timing chain, you will see a 1-1/2 in plug looking device. That's it. > The tensioner is supposed to hold tension when the engine is off to > prevent the noises you hear. Just spin out the old, and spin in the > new. They are very inexpensive. > > -Gary, Orlando > 1986 MB 190D 2.5 > > > > On Sat, 2002-10-19 at 08:12, Michael Aimino wrote: > > Howdy. My 300SD recently developed a strange rattle. Once warmed up, > > at idle, there's a constant rattling under the hood. If I touch the > > accelerator, the rattle goes away. I noticed that when the oil > > pressure goes up, the rattle went away, so I suspected my timing > > chain was loose. I took my camshaft cover off and the timing chain > > is rather loose (I can easily move it a bit off of the tensioner > > rail). > > > > Question: Timing chain replacement? Chain tensioner? Or both? I'd > > like to do this in one shot. ;-> Thanks. > > > > Kind Regards, > > Mike Aimino > > 1983 300TD > > 1981 300SD ------------------------------ Date: 19 Oct 2002 12:16:53 -0400 From: "Gary, Orlando" Subject: Re: timing chain Mike, Sounds like the tensioner to me. An easy and inexpensive fix. Sounds like minimal chain stretch as well. Line up the cam sprocket line to the one on the cam bearing cap. Then look at the crank pulley and read the degrees. Record this value and the mileage for future reference. Anything less than 4 should be good to go. Good Luck, - -Gary, Orlando On Sat, 2002-10-19 at 11:03, Michael Aimino wrote: > Hi Gary. Thank you for the info. I'm pretty sure now that the problem > is the tensioner. The pressure bolt on the chain tensioner can be > moved back when the engine is stopped. The MBZ repair CD says this > should not happen. Sounds like a defective chain tensioner. Also, the > timing marks on the flywheel and the cam sproket are matching up, so > it doesn't look like the chain is stretched. > > Does it sound like I'm on the right track? Thanks! > > Mike ------------------------------ Date: Sat, 19 Oct 2002 19:53:09 -0400 From: "Michael Aimino" Subject: Re: timing chain Thanks for your help. I'm ordering a new chain tensioner. On 19 Oct 02, at 12:16, Gary, Orlando wrote: > Mike, > Sounds like the tensioner to me. An easy and inexpensive fix. > > Sounds like minimal chain stretch as well. Line up the cam sprocket > line to the one on the cam bearing cap. Then look at the crank pulley > and read the degrees. Record this value and the mileage for future > reference. Anything less than 4 should be good to go. > > Good Luck, > > -Gary, Orlando > > On Sat, 2002-10-19 at 11:03, Michael Aimino wrote: > > Hi Gary. Thank you for the info. I'm pretty sure now that the > > problem is the tensioner. The pressure bolt on the chain tensioner > > can be moved back when the engine is stopped. The MBZ repair CD says > > this should not happen. Sounds like a defective chain tensioner. > > Also, the timing marks on the flywheel and the cam sproket are > > matching up, so it doesn't look like the chain is stretched. > > > > Does it sound like I'm on the right track? Thanks! > > > > Mike ------------------------------ Date: Sun, 20 Oct 2002 11:59:01 -0700 From: john Subject: new powerplant for hondas... :) http://www.wagoneers.com/pages/RocketCar/Civic_V-1.jpg someone found the Rocket Car story on my server and sent me this picture... :) john - ------------------------------------------------------------------ http://www.WAGONEERS.com/ Snohomish, WA - where Jeeps don't rust, they mold... jesus, don't leave life without him, please! - ------------------------------------------------------------------- ------------------------------ End of diesel-benz-digest V1 #820 *********************************