What kind of oil in motor, too thick? You have hydraulic lifters, I think (if so shouldn't be valve adjust problem)?
-----Original Message----- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of WILTON Sent: Saturday, December 17, 2011 4:31 PM To: mercedes list Subject: [MBZ] Glowing ]91 350SDL Several months ago, I installed 6 new glow plugs in the SDL. Since then, when its cool, below 50F or so, I have to glow it for 3 or 4 30-second cycles to start it without "grinding" starter. Glow light gives normal indications, fuse is good/new (yes, it really is - good power (12v) on both sides of fuse), relay clicks at 30 seconds, continuity check of all plugs is good. 'Does same way with another good relay. Plugs are obviously heating some -' just takes longer/several times when engine is cold. When it starts, all cyls fire evenly with nice, smooth idle. 'Seems that when it gets warm enough to start, all cyls have warmed evenly. 'Just realized something I haven't done yet - check voltage at each of the 6 relay pins during the 30-second cycle. Always before, 'cept when plugs are bad, it started with just a touch of the starter switch to START. When I replaced the glow plugs, I did not ream the holes; suppose carbon build-up is keeping the plugs from heating as rapidly or as well as it normally has? 'Spose my need for additional glowing is due to carbon build-up? Wilton _______________________________________ 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://mail.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://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
