of course you're right - I should ave said my method starts once the fasteneers are down to the 1st position.
Thanks for clarifying - Larry T (67 MGB, 74 911, 78 240D, 91 300D) www.youroil.net for Oil Analysis and Weber Parts Test Results http://members.rennlist.com/oil PORSCHE POSTERS! youroil.net Weber Carb Info http://members.rennlist.com/webercarbs . ----- Original Message ----- From: "dave walton" <[EMAIL PROTECTED]> To: "Mercedes Discussion List" <mercedes@okiebenz.com> Sent: Sunday, August 12, 2007 7:50 AM Subject: Re: [MBZ] OM603 camshaft installation > Both the removal and tightening sequence of a camshaft on a 603 is > determined by the lobes that have pressure on them at TDC - i.e. open > valves. The crankshaft and camshaft markings must both be at TDC. When > I say sequence, I mean the order in which you start tightening (or > removing) the bolts as pressure is applied to the camshaft from the > valve springs, not just the order in which you torque them down after > they are snug. > > -Dave Walton > > On 8/12/07, LarryT <[EMAIL PROTECTED]> wrote: >> Hi Luther, >> One thing about the torque sequence - typically, it's best to start in >> the >> middle and work towards the outside.. Hmmm... I'm havng trouble finding >> a >> way to dcscribe it... >> >> if the cam cover looks like this - with the #s being bolts -- >> 1 - 2 - 3 - 4 - 5 - 6 >> 7 - 8 - 9 - 10-11-12 >> >> 1st, snug one of the middles - 3,4,9 or 10. then the one opposite/other >> side - say you did 3, the next would be 10, then 9, then 4, then >> 8,5,2,11,1,12,7 & 6. >> >> That way, the surface will be kept smooth as any imperfections will be >> pushed to the outer edges with the tightening of each fastener, >> >> It's probably too late for you, but it should be disassembled in a >> similar >> sequence. >> >> Good luck - >> >> Larry T (67 MGB, 74 911, 78 240D, 91 300D) >> www.youroil.net for Oil Analysis and Weber Parts >> Test Results http://members.rennlist.com/oil >> PORSCHE POSTERS! youroil.net >> Weber Carb Info http://members.rennlist.com/webercarbs >> . >> >> ----- Original Message ----- >> From: "Luther" <[EMAIL PROTECTED]> >> To: "Mercedes Discussion List" <Mercedes@okiebenz.com> >> Sent: Thursday, August 09, 2007 1:35 PM >> Subject: [MBZ] OM603 camshaft installation >> >> >> > Anyone have experience installing camshafts? I can't keep mine at TDC >> > when I'm tightening it. I've tried tightening in these orders. >> > 7,4,3,2; >> > 2,3,4,7; 7,2,4,3; and 2,3,4,7,7,4,3,2 etc. I've tried all those >> > patterns >> > twice; the first time tightening the right bolt first, then the left, >> > and >> > second time tightening the left bolt, then the right. Yes, I am >> > tightening all 8 bolts 1 turn before going through the sequence again. >> > I've been working on it nearly 2 hours this morning and cannot get it >> > to >> > hold TDC. Advice? TIA all. >> > >> > -- >> > Luther KB5QHU Alma, Ark >> > '87 300SDL (272,xxx mi) head case >> > '85 Ford F250 6.9 diesel (x58,xxx mi) >> > '82 300CD (166 kmi) >> > '82 300D (74 kmi) getting donor engine-sold >> > '85 300D (280,176) parts car sans engine >> > >> > _______________________________________ >> > http://www.okiebenz.com >> > For new parts see official list sponsor: http://www.buymbparts.com/ >> > For used parts email [EMAIL PROTECTED] >> > >> > To Unsubscribe or change delivery options go to: >> > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > >> > >> > -- >> > No virus found in this incoming message. >> > Checked by AVG Free Edition. >> > Version: 7.5.476 / Virus Database: 269.11.10/943 - Release Date: >> > 8/8/2007 >> > 5:38 PM >> > >> >> >> _______________________________________ >> http://www.okiebenz.com >> For new parts see official list sponsor: http://www.buymbparts.com/ >> For used parts email [EMAIL PROTECTED] >> >> To Unsubscribe or change delivery options go to: >> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.476 / Virus Database: 269.11.13/946 - Release Date: 8/10/2007 > 3:50 PM > > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
