---------------------------------------------------------- TeamGrumman-List Digest Archive --- Total Messages Posted Mon 08/18/03: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:28 AM - I can POST I can POST (FLYaDIVE@aol.com) 2. 07:01 PM - Firewall Restoration (Steven Jackson) 3. 07:30 PM - Re: Firewall Restoration (bob milligan) 4. 07:45 PM - Re: Firewall Restoration (Steven Jackson) 5. 07:49 PM - Re: Firewall Restoration (flyv35b) 6. 07:55 PM - Re: Firewall Restoration (bob milligan) 7. 07:57 PM - Re: Firewall Restoration (linn walters) 8. 08:05 PM - Re: Firewall Restoration (bob milligan) 9. 08:56 PM - Re: Firewall Restoration (Gil Alexander) ________________________________ Message 1 _____________________________________ Time: 10:28:46 AM PST US From: FLYaDIVE@aol.com Subject: TeamGrumman-List: I can POST I can POST --> TeamGrumman-List message posted by: FLYaDIVE@aol.com Hi TG: I can also trot, but that is a horse of a different color. Barry "Chop'd Liver" ________________________________ Message 2 _____________________________________ Time: 07:01:35 PM PST US From: "Steven Jackson" Subject: TeamGrumman-List: Firewall Restoration --> TeamGrumman-List message posted by: "Steven Jackson" Gents, While I've got my engine off, I'm planning on doing some work on the firewall. So far, I've been using scotch-brite pads to remove the surface corrosion, but was wondering if there was some better techniques, especially as I get the rough stuff off, and begin getting it nice and smooth. Then, after that's taken care of, I was looking at options for painting (or not) the firewall to keep the corrosion from happening again. I've noticed a couple of aircraft that have painted firewalls, and was wondering if that was a good idea. Is there a way to keep the metal finish and still fight the corrosion? I've planned on getting the engine mount magnafluxed and repainted as well. Anyway, any ideas/experiences are welcome. Steven Jackson N1434R L22 Yucca Valley, CA ________________________________ Message 3 _____________________________________ Time: 07:30:14 PM PST US Subject: Re: TeamGrumman-List: Firewall Restoration From: bob milligan --> TeamGrumman-List message posted by: bob milligan on 8/18/03 6:57 PM, Steven Jackson at steven.jackson14@adelphia.net wrote: > --> TeamGrumman-List message posted by: "Steven Jackson" > > > Gents, > > While I've got my engine off, I'm planning on doing some work on the > firewall. So far, I've been using scotch-brite pads to remove the surface > corrosion, but was wondering if there was some better techniques, especially > as I get the rough stuff off, and begin getting it nice and smooth. Then, > after that's taken care of, I was looking at options for painting (or not) > the firewall to keep the corrosion from happening again. I've noticed a > couple of aircraft that have painted firewalls, and was wondering if that > was a good idea. Is there a way to keep the metal finish and still fight > the corrosion? I've planned on getting the engine mount magnafluxed and > repainted as well. > > Anyway, any ideas/experiences are welcome. > > Steven Jackson > N1434R > L22 > Yucca Valley, CA > > > > > > Regarding Steven's question, I have appreciated having the entire interior of my cowl, upper, lower and firewall all finished in gloss white. It's relatively easy to keep clean and hardly a fleck of dust nor a drop of oil can escape my scrutiny. Bob Milligan ________________________________ Message 4 _____________________________________ Time: 07:45:30 PM PST US From: "Steven Jackson" Subject: RE: TeamGrumman-List: Firewall Restoration --> TeamGrumman-List message posted by: "Steven Jackson" Thanks Bob, I'll take that on board. What type of paint/prep did you use for that? Steve -----Original Message----- From: owner-teamgrumman-list-server@matronics.com [mailto:owner-teamgrumman-list-server@matronics.com]On Behalf Of bob milligan Subject: Re: TeamGrumman-List: Firewall Restoration --> TeamGrumman-List message posted by: bob milligan on 8/18/03 6:57 PM, Steven Jackson at steven.jackson14@adelphia.net wrote: > --> TeamGrumman-List message posted by: "Steven Jackson" > > > Gents, > > While I've got my engine off, I'm planning on doing some work on the > firewall. So far, I've been using scotch-brite pads to remove the surface > corrosion, but was wondering if there was some better techniques, especially > as I get the rough stuff off, and begin getting it nice and smooth. Then, > after that's taken care of, I was looking at options for painting (or not) > the firewall to keep the corrosion from happening again. I've noticed a > couple of aircraft that have painted firewalls, and was wondering if that > was a good idea. Is there a way to keep the metal finish and still fight > the corrosion? I've planned on getting the engine mount magnafluxed and > repainted as well. > > Anyway, any ideas/experiences are welcome. > > Steven Jackson > N1434R > L22 > Yucca Valley, CA > > Regarding Steven's question, I have appreciated having the entire interior of my cowl, upper, lower and firewall all finished in gloss white. It's relatively easy to keep clean and hardly a fleck of dust nor a drop of oil can escape my scrutiny. Bob Milligan ________________________________ Message 5 _____________________________________ Time: 07:49:40 PM PST US From: "flyv35b" Subject: Re: TeamGrumman-List: Firewall Restoration --> TeamGrumman-List message posted by: "flyv35b" Steve, I have painted several firewalls and although it is quite a bit of work it is worth it if done properly. I typically use an epoxy primer (used by Boeing, I forgot the name but can get it) and then top coat it with DuPont Imron if you want the most finished look. I just sand the firewall and then use scotchbrite and a stainless wire brush to clean around the few rivets, etc. It needs to be thoroughly cleaned with lacquer thinner before painting. I also take off almost everything that can be unbolted readily like the starter and master relays, the battery box, primer line, wiring clamps. I leave the heater valve and cables and just mask them off. As far as the motor mount goes, don't magnaflux it as it isn't necessary and you will magnetize it so that you may never get your compass to work again. Just visually inspect all the welds, etc. for cracks, have it bead blasted to strip the the paint and clean any corrosion and then have it powder coated. A good powder coater can many times do both jobs. If the plane is a later model Tiger or Cheetah with the all stainless steel firewall then don't paint it, just clean it and polish it if you want. The earlier ones were steel that was "aluminized" and may have rusted and corroded over the years and need to be painted to restore them to good condition. Cliff A&P/IA ----- Original Message ----- From: "Steven Jackson" Subject: TeamGrumman-List: Firewall Restoration > --> TeamGrumman-List message posted by: "Steven Jackson" > > Gents, > > While I've got my engine off, I'm planning on doing some work on the > firewall. So far, I've been using scotch-brite pads to remove the surface > corrosion, but was wondering if there was some better techniques, especially > as I get the rough stuff off, and begin getting it nice and smooth. Then, > after that's taken care of, I was looking at options for painting (or not) > the firewall to keep the corrosion from happening again. I've noticed a > couple of aircraft that have painted firewalls, and was wondering if that > was a good idea. Is there a way to keep the metal finish and still fight > the corrosion? I've planned on getting the engine mount magnafluxed and > repainted as well. > > Anyway, any ideas/experiences are welcome. > > Steven Jackson > N1434R > L22 > Yucca Valley, CA > > ________________________________ Message 6 _____________________________________ Time: 07:55:57 PM PST US Subject: Re: TeamGrumman-List: Firewall Restoration From: bob milligan --> TeamGrumman-List message posted by: bob milligan on 8/18/03 7:41 PM, Steven Jackson at steven.jackson14@adelphia.net wrote: > --> TeamGrumman-List message posted by: "Steven Jackson" > > > Thanks Bob, I'll take that on board. What type of paint/prep did you use > for that? > > Steve > > -----Original Message----- > From: owner-teamgrumman-list-server@matronics.com > [mailto:owner-teamgrumman-list-server@matronics.com]On Behalf Of bob > milligan > To: teamgrumman-list@matronics.com > Subject: Re: TeamGrumman-List: Firewall Restoration > > > --> TeamGrumman-List message posted by: bob milligan > > on 8/18/03 6:57 PM, Steven Jackson at steven.jackson14@adelphia.net wrote: > >> --> TeamGrumman-List message posted by: "Steven Jackson" >> >> >> Gents, >> >> While I've got my engine off, I'm planning on doing some work on the >> firewall. So far, I've been using scotch-brite pads to remove the surface >> corrosion, but was wondering if there was some better techniques, > especially >> as I get the rough stuff off, and begin getting it nice and smooth. Then, >> after that's taken care of, I was looking at options for painting (or not) >> the firewall to keep the corrosion from happening again. I've noticed a >> couple of aircraft that have painted firewalls, and was wondering if that >> was a good idea. Is there a way to keep the metal finish and still fight >> the corrosion? I've planned on getting the engine mount magnafluxed and >> repainted as well. >> >> Anyway, any ideas/experiences are welcome. >> >> Steven Jackson >> N1434R >> L22 >> Yucca Valley, CA >> >> > Regarding Steven's question, I have appreciated having the entire interior > of my cowl, upper, lower and firewall all finished in gloss white. > > It's relatively easy to keep clean and hardly a fleck of dust nor a drop of > oil can escape my scrutiny. > > Bob Milligan > > > > > > Steve, here is how that came about: I took my newly purchased, sadly neglected Cheetah first to the engine shop, Performance Aero Engines at Bracket. While the engine was being overhauled, the mount was magnafluxed and powder coated. The firewall was stripped and painted as well. Then when I took the airplane to George at Corona for paint, I asked George to paint the insides of all parts of the cowl in white. I think he used the same Imron as on the rest of the airplane. In a word, I don't know. ________________________________ Message 7 _____________________________________ Time: 07:57:44 PM PST US From: linn walters Subject: Re: TeamGrumman-List: Firewall Restoration --> TeamGrumman-List message posted by: linn walters flyv35b wrote: >--> TeamGrumman-List message posted by: "flyv35b" >SNIP >If the plane is a later model Tiger or Cheetah with the all stainless steel >firewall then don't paint it, just clean it and polish it if you want. The >earlier ones were steel that was "aluminized" and may have rusted and >corroded over the years and need to be painted to restore them to good >condition. > >Cliff A&P/IA > If it is one with the steel firewall, get some OSPHO from the hardware store and brush or spray it on. If you spray it, use a good respirator. Let it sit for a day or two. Lightly sand off all the black goop and re-apply the OSPHO. Let it dry thoroughly before painting ..... you can get a self-etching polyurethane primer in white too. Linn ________________________________ Message 8 _____________________________________ Time: 08:05:00 PM PST US Subject: Re: TeamGrumman-List: Firewall Restoration From: bob milligan --> TeamGrumman-List message posted by: bob milligan on 8/18/03 7:49 PM, flyv35b at flyv35b@juno.com wrote: > --> TeamGrumman-List message posted by: "flyv35b" > > Steve, I have painted several firewalls and although it is quite a bit of > work it is worth it if done properly. I typically use an epoxy primer (used > by Boeing, I forgot the name but can get it) and then top coat it with > DuPont Imron if you want the most finished look. I just sand the firewall > and then use scotchbrite and a stainless wire brush to clean around the few > rivets, etc. It needs to be thoroughly cleaned with lacquer thinner before > painting. I also take off almost everything that can be unbolted readily > like the starter and master relays, the battery box, primer line, wiring > clamps. I leave the heater valve and cables and just mask them off. > > As far as the motor mount goes, don't magnaflux it as it isn't necessary and > you will magnetize it so that you may never get your compass to work again. > Just visually inspect all the welds, etc. for cracks, have it bead blasted > to strip the the paint and clean any corrosion and then have it powder > coated. A good powder coater can many times do both jobs. > > If the plane is a later model Tiger or Cheetah with the all stainless steel > firewall then don't paint it, just clean it and polish it if you want. The > earlier ones were steel that was "aluminized" and may have rusted and > corroded over the years and need to be painted to restore them to good > condition. > > Cliff A&P/IA > ----- Original Message ----- > From: "Steven Jackson" > To: "Team Grumman" > Subject: TeamGrumman-List: Firewall Restoration > > >> --> TeamGrumman-List message posted by: "Steven Jackson" > >> >> Gents, >> >> While I've got my engine off, I'm planning on doing some work on the >> firewall. So far, I've been using scotch-brite pads to remove the surface >> corrosion, but was wondering if there was some better techniques, > especially >> as I get the rough stuff off, and begin getting it nice and smooth. Then, >> after that's taken care of, I was looking at options for painting (or not) >> the firewall to keep the corrosion from happening again. I've noticed a >> couple of aircraft that have painted firewalls, and was wondering if that >> was a good idea. Is there a way to keep the metal finish and still fight >> the corrosion? I've planned on getting the engine mount magnafluxed and >> repainted as well. >> >> Anyway, any ideas/experiences are welcome. >> >> Steven Jackson >> N1434R >> L22 >> Yucca Valley, CA >> >> > > > > > > Cliff brings up a good point and reminds me of a rather unpleasant but funny story, (for another time). If you have them paint the firewall, and "take off almost everything that can be unbolted readily, like the starter and master relays," and you happen to include the voltage regulator, make darn sure they clean off the paint enough so that it gets a good ground when it is re-installed and then check the charging rate when they do the run-up. Bob Milligan ________________________________ Message 9 _____________________________________ Time: 08:56:16 PM PST US From: Gil Alexander Subject: Re: TeamGrumman-List: Firewall Restoration --> TeamGrumman-List message posted by: Gil Alexander Steve ... Scotchbrite Roloc disks on a Harbor freight angle die grinder are a "less work" way... http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=41655 Picture shows the Roloc disks... If you finish off with the grey "ultra fine" you get quite a polished finish ... but I would still paint, just go with a tough Imron paint. Since it's corroding, I presume it's not stainless...: ) gil in Tucson At 06:57 PM 8/18/2003 -0700, you wrote: >--> TeamGrumman-List message posted by: "Steven Jackson" > > >Gents, > >While I've got my engine off, I'm planning on doing some work on the >firewall. So far, I've been using scotch-brite pads to remove the surface >corrosion, but was wondering if there was some better techniques, especially >as I get the rough stuff off, and begin getting it nice and smooth. Then, >after that's taken care of, I was looking at options for painting (or not) >the firewall to keep the corrosion from happening again. I've noticed a >couple of aircraft that have painted firewalls, and was wondering if that >was a good idea. Is there a way to keep the metal finish and still fight >the corrosion? I've planned on getting the engine mount magnafluxed and >repainted as well. > >Anyway, any ideas/experiences are welcome. > >Steven Jackson >N1434R >L22 >Yucca Valley, CA > >