---------------------------------------------------------- TeamGrumman-List Digest Archive --- Total Messages Posted Mon 09/18/06: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:39 AM - lower cowling (Chad Miller) 2. 10:28 AM - Re: lower cowling (flyv35b) 3. 11:01 AM - Upper Cowling stiffener (Mark Miller) 4. 11:33 AM - Re: Upper Cowling stiffener (923te) 5. 11:58 AM - Re: Oil Temp Followup (teamgrumman@AOL.COM) 6. 12:20 PM - Re: lower cowling (teamgrumman@AOL.COM) 7. 12:28 PM - Re: Upper Cowling stiffener (teamgrumman@aol.com) 8. 12:37 PM - Re: Oil Temp Followup (923te) 9. 12:39 PM - Re: Oil Temp Followup (923te) 10. 01:35 PM - Minolta Camera for sale (teamgrumman@AOL.COM) 11. 01:37 PM - Scanner for sale (teamgrumman@AOL.COM) 12. 10:19 PM - Re: lower cowling (Gil Alexander) ________________________________ Message 1 _____________________________________ Time: 09:39:14 AM PST US From: "Chad Miller" Subject: TeamGrumman-List: lower cowling Is there anyway to repair cracks in a lower cowling on a 1978 Tiger, besides putting patches on the outside? ________________________________ Message 2 _____________________________________ Time: 10:28:55 AM PST US From: "flyv35b" Subject: Re: TeamGrumman-List: lower cowling Yes, put the patch on the INSIDE and flush rivet it. The patch and cowl skin can usually be dimpled to accept the flush rivet. Use AN426-3 rivets typically. Cliff A&P/IA ----- Original Message ----- From: Chad Miller To: teamgrumman-list@matronics.com Sent: Monday, September 18, 2006 9:37 AM Subject: TeamGrumman-List: lower cowling Is there anyway to repair cracks in a lower cowling on a 1978 Tiger, besides putting patches on the outside? ________________________________ Message 3 _____________________________________ Time: 11:01:49 AM PST US From: Mark Miller Subject: TeamGrumman-List: Upper Cowling stiffener --> TeamGrumman-List message posted by: Mark Miller There is a honeycomb stiffener on the inside front of the upper cowling doors that has partially de-bonded from the skin on my 75 Tiger. I assume there is a simple way to re-bond them or is this best done with rivets or some other technique? Thanks all. 74090 ________________________________ Message 4 _____________________________________ Time: 11:33:35 AM PST US From: "923te" <923te@cox.net> Subject: Re: TeamGrumman-List: Upper Cowling stiffener --> TeamGrumman-List message posted by: "923te" <923te@cox.net> I believe there is a factory approved method for repairing this particular debond. As I recall, the repair method is either in a SB or in the maintenance manual. Check with Fletchair for a copy of the SB or Gary will probably know.... ________________________________ Message 5 _____________________________________ Time: 11:58:15 AM PST US Subject: Re: TeamGrumman-List: Oil Temp Followup From: teamgrumman@AOL.COM --> TeamGrumman-List message posted by: teamgrumman@aol.com yea, probably, but why would you cheap-out on an oil cooler? I've used the 8406R on several installations (Citabria, Cheetah) and I really like them. The 8406R is welded as opposed to vacuum brazed on the cheaper ones. I've had too many leaky vacuum brazed oil coolers to even consider bothering with them. -----Original Message----- From: airman@appledumplings.com Sent: Sat, 16 Sep 2006 5:20 PM Subject: TeamGrumman-List: Oil Temp Followup --> TeamGrumman-List message posted by: "airman@appledumplings.com" All, I have tracked down the AK(Accessory Kit) put out by American General Aircraft for upgrading the oil cooler on the AA5B. The cooler used is the Stewart Warner 8406R. Apparently they never produced this kit. Anyway the question I have is this: There are other companies that have coolers,which are cheaper, that have cross-over numbers to the 8406R such as NDM part 20002A and Aero Classic 800075. Can these be substituted legally? what is the difference between PMA and FAA approved? Thanks Much , Thomas ____|____ /[ ]\ <:::::::::::::[<=o=>]:::::::::::::> o/ \o N74225 D73 ________________________________________________________________________ Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more. ________________________________ Message 6 _____________________________________ Time: 12:20:22 PM PST US Subject: Re: TeamGrumman-List: lower cowling From: teamgrumman@AOL.COM --> TeamGrumman-List message posted by: teamgrumman@aol.com Unfortunately, no. You're stuck with a patch. All 78 and 79 Tiger cowlings will crack on the lower right side in the cooling exit ramp area. The metal cooling exit ramps do not absorb enough of the vibrations from the prop-exhaust pulses. The only way I know of to recuce or eliminate future cracks is to replace the metal ramp with a fiberglass ramp. -----Original Message----- From: tiger862@ligtel.com Sent: Mon, 18 Sep 2006 9:37 AM Subject: TeamGrumman-List: lower cowling Is there anyway to repair cracks in a lower cowling on a 1978 Tiger, besides putting patches on the outside? ________________________________________________________________________ Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more. ________________________________ Message 7 _____________________________________ Time: 12:28:07 PM PST US Subject: Re: TeamGrumman-List: Upper Cowling stiffener From: teamgrumman@aol.com --> TeamGrumman-List message posted by: teamgrumman@aol.com I have sent the upper cowling to Fletcher to have it repaired in the past. I tried one many, many years ag. It never came back, so, I assume it never debonded again. I used a metal to metal bonding agent used by the Experimental guys. I don't rmember what it was. I have a complete upper cowling from my 78 Tiger that I'd sell for $1500. It is in very good condition. It has a very nice 3-color Imron paint job on it too. Although, I doubt it would match your paint. -----Original Message----- From: mark@edenfx.com Sent: Mon, 18 Sep 2006 11:02 AM Subject: TeamGrumman-List: Upper Cowling stiffener --> TeamGrumman-List message posted by: Mark Miller There is a honeycomb stiffener on the inside front of the upper cowling doors that has partially de-bonded from the skin on my 75 Tiger. I assume there is a simple way to re-bond them or is this best done with rivets or some other technique? Thanks all. 74090 ________________________________________________________________________ Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more. ________________________________ Message 8 _____________________________________ Time: 12:37:42 PM PST US From: "923te" <923te@cox.net> Subject: Re: TeamGrumman-List: Oil Temp Followup --> TeamGrumman-List message posted by: "923te" <923te@cox.net> http://www.rvproject.com/20040519.html The above link might be if interest. This from an RV builder / flyer who compared the performance of different oil coolers. The Stewart Warner comes out on top and is considered by Pacific oil coolers to be around 15% more effecient at cooling thant the NDM or aero classic... --> TeamGrumman-List message posted by: teamgrumman@aol.com yea, probably, but why would you cheap-out on an oil cooler? I've used the 8406R on several installations (Citabria, Cheetah) and I really like them. The 8406R is welded as opposed to vacuum brazed on the cheaper ones. I've had too many leaky vacuum brazed oil coolers to even consider bothering with them. -----Original Message----- From: airman@appledumplings.com Sent: Sat, 16 Sep 2006 5:20 PM Subject: TeamGrumman-List: Oil Temp Followup --> TeamGrumman-List message posted by: "airman@appledumplings.com" All, I have tracked down the AK(Accessory Kit) put out by American General Aircraft for upgrading the oil cooler on the AA5B. The cooler used is the Stewart Warner 8406R. Apparently they never produced this kit. Anyway the question I have is this: There are other companies that have coolers,which are cheaper, that have cross-over numbers to the 8406R such as NDM part 20002A and Aero Classic 800075. Can these be substituted legally? what is the difference between PMA and FAA approved? Thanks Much , Thomas ____|____ /[ ]\ <:::::::::::::[<=o=>]:::::::::::::> o/ \o N74225 D73 ________________________________________________________________________ Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more. ________________________________ Message 9 _____________________________________ Time: 12:39:38 PM PST US From: "923te" <923te@cox.net> Subject: Re: TeamGrumman-List: Oil Temp Followup --> TeamGrumman-List message posted by: "923te" <923te@cox.net> http://www.romeolima.com/RV8/FirewallForward.htm#Oil%20cooler The above link is also a good comparison of the different brands of oil coolers ________________________________ Message 10 ____________________________________ Time: 01:35:31 PM PST US Subject: TeamGrumman-List: Minolta Camera for sale From: teamgrumman@AOL.COM --> TeamGrumman-List message posted by: teamgrumman@aol.com Anyone interested in a Minolta X700? It has a motor drive that takes 4.5 frames per sec, 3 different zoom lenses, and lots of filters. I had it overhauled by Minolta in 2003. ________________________________________________________________________ Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more. ________________________________ Message 11 ____________________________________ Time: 01:37:36 PM PST US Subject: TeamGrumman-List: Scanner for sale From: teamgrumman@AOL.COM --> TeamGrumman-List message posted by: teamgrumman@aol.com I also have an HP scanner and Printer for sale. I used them both before I moved to Auburn. Once I got here, I bought an HP all-in-one printer etc, Scanner was the top of the line scanner in 2002. Printer was too, I think. Best offer. If you can use them, let me know. ________________________________________________________________________ Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more. ________________________________ Message 12 ____________________________________ Time: 10:19:01 PM PST US From: Gil Alexander Subject: Re: TeamGrumman-List: lower cowling At 12:19 PM 9/18/2006, you wrote: >--> TeamGrumman-List message posted by: teamgrumman@aol.com > >Unfortunately, no. You're stuck with a patch. All 78 and 79 Tiger >cowlings will crack on the lower right side in the cooling exit ramp >area. The metal cooling exit ramps do not absorb enough of the vibrations >from the prop-exhaust pulses. The only way I know of to recuce or >eliminate future cracks is to replace the metal ramp with a fiberglass ramp. Gary... is the damage less with a PowerFlow exhaust?? The pulses should not be hitting the cowling... gil A >-----Original Message----- >From: tiger862@ligtel.com >To: teamgrumman-list@matronics.com >Sent: Mon, 18 Sep 2006 9:37 AM >Subject: TeamGrumman-List: lower cowling > > Is there anyway to repair cracks in a lower cowling on a 1978 Tiger, > besides putting patches on the outside?