Should also help to flush the heater core. Randy B
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of LarryT Sent: Wednesday, July 05, 2006 6:08 PM To: Mercedes Discussion List Subject: Re: [MBZ] Citric acid flush questions To add one small nugget to Marshalls excellent instructions, turn the heater control to full hot - and leave it there until finished with the whole process including refilling with the appropriate coolant mixture. Failing to do so can allow a bubble to form that will not be flushed out and irratic temps will occur. Good luck with your Citric flush - I plan to try it myself during the next year or so. 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 Weber Carb Info http://members.rennlist.com/webercarbs Porsche Road Test http://members.rennlist.com/roadtest/ . ----- Original Message ----- From: "Marshall Booth" <[EMAIL PROTECTED]> To: "Mercedes Discussion List" <mercedes@okiebenz.com> Sent: Wednesday, July 05, 2006 4:07 PM Subject: Re: [MBZ] Citric acid flush questions > Steve MacSween wrote: >> 1. IIRC, the flush mixture stays in for 20 minutes. Yes? >> >> 2. Is it acceptable to use the lower rad hose as a drain? (Not being >> lazy, >> just my back is sore as the devil and I don't want to jack the car up and >> put a jackstand under it, to use the drain.) >> >> TKS >> > > Needs to be warmed up and then allowed to cool down. Allow to warm to 80 > deg. C (normal operating temperature) and allow to remain there for 10+ > minutes. Allow to cool to 50 deg. C (that usually takes 10-20 minutes) > and drain. > > You can drain it any way you wish, but virtually all the fluid must come > out (from the radiator AND the block drains). Engine MUST be flushed at > least 3 times (each time the engine must be brought to operating temp > and run for 5 minutes at that temp to insure the acid is all out). > > Marshall > > Marshall > -- > Marshall Booth (who doesn't respond to unsigned questions) > "der Dieseling Doktor" [EMAIL PROTECTED] > '87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84 > 190D 2.2 229Kmi (retired) > > _______________________________________ > 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
