Paul, The tube going inside the air flow meter doesn't have to be greased. But I do it in the shop to insure the tube doesn't push the O ring out when inserting. If you are going to which I do suggest I use a small amount of axel grease on both the tube and around the o ring. The o ring is the most important and again doesn't have to be greased. We also have the complete set of manuals with laminated wiring diagrams for $99.00 if you don't have them. This mechanic trick normally isn't in the books. John Hervey www.specialtauto.com -----Original Message----- From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of sweetp01569 Sent: Monday, September 12, 2005 5:31 AM To: dmcnews@xxxxxxxxxxxxxxx Subject: Re: [DML] distributor cap and rotor How much does not greasing the idle speeb pipe and cup seal affect idling. I have a hot idle problem that the idle goes up and down, to the point of the engine almost stalling, then catching itself. The tube is inside the O-ring, but I did not lube it when I reinstalled. Can a lot of air pass through this? Does the grease prevent the vacuum leak? Also, what kind of grease, like wheel bearing grease? Thanks, Paul [moderator snip] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/