adrianphu123 73 Posted January 7, 2020 Hey guys, In the middle of a plenum repair on an XF ute, just wondering from those who have done it. Is the brace on the drivers side right next to the vent really necessary or can i leave it off? thanks, adrian Share this post Link to post Share on other sites
gerg 10,871 Posted January 7, 2020 Which brace do you mean Adrian? Are you talking about the little one in the valley that catches all the leaves and blocks up?Sent from my CPH1903 using Tapatalk Share this post Link to post Share on other sites
adrianphu123 73 Posted January 8, 2020 Yeah that’s the one. The only problem I can think of is the wiper motor flexing that part of the plenum but if I can get away with not putting it back I’d prefer not to Share this post Link to post Share on other sites
macman 774 Posted January 8, 2020 I'd probably lean towards leaving it out too. And the smaller one on the passenger side. If I had needed to do an in-depth repair of the area, I'd have made some modifications to reduce the chance of water and muck getting trapped in there too. The drivers side one does look more like a strengthening brace, but it doesn't look to be relating to the wiper motor assembly or pedal box or anything IMO. Share this post Link to post Share on other sites
dvfalcon 352 Posted January 8, 2020 It does support the top plenum cover couple of spot welds, directly below there is the pedal box. There is bolts on that area for the wiper motor assembly isn’t there? Support Just going of memory car to far away atm. Share this post Link to post Share on other sites
adrianphu123 73 Posted January 8, 2020 Yes that’s the one. I remember reading somewhere you did a plenum repair before, did you leave it out or put it back? Share this post Link to post Share on other sites
dvfalcon 352 Posted January 22, 2020 Put it back as it left the factory Share this post Link to post Share on other sites
dvfalcon 352 Posted January 22, 2020 Sent from my iPad using Tapatalk 1 2redrovers reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted January 22, 2020 If it's not there for strength, I dare say it could be to help prevent cabin drumming (chassis vibration).Sent from my CPH1903 using Tapatalk Share this post Link to post Share on other sites
gregaust 319 Posted January 25, 2020 Looking where it is located , possibly stability for the brake booster area ?? 2 gerg and deankxf reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted January 25, 2020 Yeah good point. The firewalls do love to flex, especially in the clutch master or cable mountSent from my CPH1903 using Tapatalk Share this post Link to post Share on other sites
adrianphu123 73 Posted February 1, 2020 Good points guys, I've decided to leave it out and im halfway to closing that area up. From the way its mounted, any flex in the brake booster area would now occur below the seam anyway but just to satisfy my paranoia I'll be looking to make a brace that mounts to the upper shock tower and butts against the front of the master cylinder to prevent any flex in that area. Share this post Link to post Share on other sites