---------------------------------------------------------- LycomingEngines-List Digest Archive --- Total Messages Posted Tue 04/26/11: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:34 AM - Re: Baffle Springs (Vinod Wahi) 2. 06:07 AM - Re: Baffle Springs (FLYaDIVE) 3. 06:45 AM - Re: Baffle Springs (Vinod Wahi) 4. 09:17 AM - Re: Baffle Springs (Dale Ensing) ________________________________ Message 1 _____________________________________ Time: 02:34:00 AM PST US Subject: Re: LycomingEngines-List: Baffle Springs From: Vinod Wahi Hi Dale Thanks any way. Vinod On 23 April 2011 17:31, Dale Ensing wrote: > Sorry Vinod, could not find a picture. > > Sent from my iPhone > > On Apr 19, 2011, at 4:11, Vinod Wahi wrote: > > Thanks for your efforts Dale. > On 19 April 2011 02:37, Dale Ensing wrote: > >> Vinod >> I'll look thru my files for a picture. >> >> >> ----- Original Message ----- >> *From:* Vinod Wahi >> *To:* lycomingengines-list@matronics.com >> *Sent:* Monday, April 18, 2011 12:13 PM >> *Subject:* Re: LycomingEngines-List: Baffle Springs >> >> Dale, >> do you have a picture? >> >> On 18 April 2011 16:44, Dale Ensing wrote: >> >>> densing@carolina.rr.com> >>> >>> Mick >>> Another solution I used.... >>> Cut the heads off from four 1 inch 4-40 screws. Peen a flat on the cut >>> end of the screws. Drill a hole in the flat for safety wire. Connected each >>> end of pre-measured length of safety wire to a screw. Insert a screw, with >>> an adjustment nut already on screw, into hole in each baffle. Install all >>> metal lock nut on end of each screw. Adjust for proper length and tighten >>> nuts. >>> Dale >>> >>> Sent from my iPad >>> >>> On Apr 18, 2011, at 3:26 AM, "mullokintyre" >>> wrote: >>> >>> mmul6471@bigpond.net.au> >>> > >>> > I have seen a number of solutions to tying together the front and rear >>> baffles underneath the cylinders on an o_320, >>> > One solution is to attach springs. That's good, but no one seems to >>> have any idea of the spring size, tension etc etc >>> > 2Second solution is to use steel tie wire with a washer at either end. >>> But I have difficulty picturing this - how do you stop the wire from >>> untwisting? And what length of wire do you start off with?? Both attempts I >>> have had result in the twisted wire breaking before it takes up the slack >>> and tightens the two baffles. >>> > 3. >>> > On another aircraft (production) I have seen a rod with both ends >>> threaded that takes very small all steel lock nuts. >>> > This is the solution I want, but can't find any part numbers in my >>> Lycoming parts book. >>> > Anyone have an idea where I might find them?? >>> > Thanks, >>> > Mick >>> > >>> > >>> > >>> > >>> > Read this topic online here: >>> > >>> > http://forums.matronics.com/viewtopic.php?p=337311#337311 >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> >tures Navigator to browse >>> s.com/Navigator?LycomingEngines-List" target="_blank"> >>> http://www.matronics.com/Navigator?LycomingEngines-List >>> ronics.com/" target="_blank">http://forums.matronics.com >>> Matt Dralle, List Admin. >>> ==== >>> >>> >>> >>> >> >> >> -- >> Vinod Wahi >> >> Mailto:vinod.wahi@googlemail.com >> www.wahi-air.com >> Tel.:+49 172 4038 502 >> >> * >> >> s-List">http://www.matronics.com/Navigator?LycomingEngines-Listics.commatronics.com/contribution >> * >> >> * >> >> >> s-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngines-List >> >> ttp://forums.matronics.com >> _blank">http://www.matronics.com/contribution >> * >> >> > > > -- > Vinod Wahi > > Mailto:vinod.wahi@googlemail.com > www.wahi-air.com > Tel.:+49 172 4038 502 > > * > > * > > * > > * > > -- Vinod Wahi Mailto:vinod.wahi@googlemail.com www.wahi-air.com Tel.:+49 172 4038 502 ________________________________ Message 2 _____________________________________ Time: 06:07:46 AM PST US Subject: Re: LycomingEngines-List: Baffle Springs From: FLYaDIVE Dale: WAY TOO MUCH WORK! Vinod... This is what you do... Just get a 4-40 threaded rod - - A few 4-40 Locking Nuts [NOT ELASTIC STOP NUTS // NYLON LOCK NUTS <--- NOT!] Cut the rod 1 1/2" longer than the spacing between the baffle flaps. Install a Lock Nut at each end and tighten down just enough to hold the shape of the baffle curve next to the cylinders. THAT IS ALL - YOU ARE DONE! But ... Tthere is always a BUT! The part that FAILS is the HOLE in the ALUMINUM Baffle. To prevent this - - Well, that is a bit more work. Install a BRASS GROMMET in the hole. Peen over the part that goes through to hole in in and lock the position. The HARD parts about this are: 1 - Finding or making the Brass Grommet. 2 - Peening it.... The baffling usually has to be removed. There are a few tricks with a rivet squeezing tool BUT you would need a rivet squeezing tool and die. Sorry I can't make this part as easy as the first. Hope you have baffles that have the hole? Barry ====================================================== On Tue, Apr 26, 2011 at 5:29 AM, Vinod Wahi wrote: > Hi Dale > Thanks any way. > Vinod > On 23 April 2011 17:31, Dale Ensing wrote: > >> Sorry Vinod, could not find a picture. >> >> Sent from my iPhone >> >> On Apr 19, 2011, at 4:11, Vinod Wahi wrote: >> >> Thanks for your efforts Dale. >> On 19 April 2011 02:37, Dale Ensing wrote: >> >>> Vinod >>> I'll look thru my files for a picture. >>> >>> >>> ----- Original Message ----- >>> *From:* Vinod Wahi >>> *To:* lycomingengines-list@matronics.com >>> *Sent:* Monday, April 18, 2011 12:13 PM >>> *Subject:* Re: LycomingEngines-List: Baffle Springs >>> >>> Dale, >>> do you have a picture? >>> >>> On 18 April 2011 16:44, Dale Ensing wrote: >>> >>>> densing@carolina.rr.com> >>>> >>>> Mick >>>> Another solution I used.... >>>> Cut the heads off from four 1 inch 4-40 screws. Peen a flat on the cut >>>> end of the screws. Drill a hole in the flat for safety wire. Connected each >>>> end of pre-measured length of safety wire to a screw. Insert a screw, with >>>> an adjustment nut already on screw, into hole in each baffle. Install all >>>> metal lock nut on end of each screw. Adjust for proper length and tighten >>>> nuts. >>>> Dale >>>> >>>> Sent from my iPad >>>> >>>> On Apr 18, 2011, at 3:26 AM, "mullokintyre" >>>> wrote: >>>> >>>> mmul6471@bigpond.net.au> >>>> > >>>> > I have seen a number of solutions to tying together the front and rear >>>> baffles underneath the cylinders on an o_320, >>>> > One solution is to attach springs. That's good, but no one seems to >>>> have any idea of the spring size, tension etc etc >>>> > 2Second solution is to use steel tie wire with a washer at either >>>> end. But I have difficulty picturing this - how do you stop the wire from >>>> untwisting? And what length of wire do you start off with?? Both attempts I >>>> have had result in the twisted wire breaking before it takes up the slack >>>> and tightens the two baffles. >>>> > 3. >>>> > On another aircraft (production) I have seen a rod with both ends >>>> threaded that takes very small all steel lock nuts. >>>> > This is the solution I want, but can't find any part numbers in my >>>> Lycoming parts book. >>>> > Anyone have an idea where I might find them?? >>>> > Thanks, >>>> > Mick >>>> > >>>> > >>>> > >>>> > >>>> > Read this topic online here: >>>> > >>>> > http://forums.matronics.com/viewtopic.php?p=337311#337311 >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> >tures Navigator to browse >>>> s.com/Navigator?LycomingEngines-List" target="_blank"> >>>> http://www.matronics.com/Navigator?LycomingEngines-List >>>> ronics.com/" target="_blank">http://forums.matronics.com >>>> Matt Dralle, List Admin. >>>> ==== >>>> >>>> >>>> >>>> >>> >>> >>> -- >>> Vinod Wahi >>> >>> Mailto:vinod.wahi@googlemail.com >>> www.wahi-air.com >>> Tel.:+49 172 4038 502 >>> >>> * >>> >>> s-List">http://www.matronics.com/Navigator?LycomingEngines-Listics.commatronics.com/contribution >>> * >>> >>> * >>> >>> >>> s-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngines-List >>> >>> ttp://forums.matronics.com >>> _blank">http://www.matronics.com/contribution >>> * >>> >>> >> >> >> -- >> Vinod Wahi >> >> Mailto:vinod.wahi@googlemail.com >> www.wahi-air.com >> Tel.:+49 172 4038 502 >> >> * >> >> * >> >> * >> >> s-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngines-List >> ttp://forums.matronics.com >> _blank">http://www.matronics.com/contribution >> * >> >> > > > -- > Vinod Wahi > > Mailto:vinod.wahi@googlemail.com > www.wahi-air.com > Tel.:+49 172 4038 502 > > * > > * > > ________________________________ Message 3 _____________________________________ Time: 06:45:26 AM PST US Subject: Re: LycomingEngines-List: Baffle Springs From: Vinod Wahi Thanks to all of you. I will give a try and post Pics, if successful. On 26 April 2011 15:04, FLYaDIVE wrote: > Dale: > > WAY TOO MUCH WORK! > > Vinod... This is what you do... > > Just get a 4-40 threaded rod - - A few 4-40 Locking Nuts [NOT ELASTIC STOP > NUTS // NYLON LOCK NUTS <--- NOT!] > > Cut the rod 1 1/2" longer than the spacing between the baffle flaps. > Install a Lock Nut at each end and tighten down just enough to hold the > shape of the baffle curve next to the cylinders. > > THAT IS ALL - YOU ARE DONE! > > But ... Tthere is always a BUT! > > The part that FAILS is the HOLE in the ALUMINUM Baffle. > To prevent this - - Well, that is a bit more work. > Install a BRASS GROMMET in the hole. Peen over the part that goes through > to hole in in and lock the position. The HARD parts about this are: > 1 - Finding or making the Brass Grommet. > 2 - Peening it.... The baffling usually has to be removed. There are a few > tricks with a rivet squeezing tool BUT you would need a rivet squeezing tool > and die. > Sorry I can't make this part as easy as the first. Hope you have baffles > that have the hole? > > Barry > ============================= > On Tue, Apr 26, 2011 at 5:29 AM, Vinod Wahi wrote: > >> Hi Dale >> Thanks any way. >> Vinod >> On 23 April 2011 17:31, Dale Ensing wrote: >> >>> Sorry Vinod, could not find a picture. >>> >>> Sent from my iPhone >>> >>> On Apr 19, 2011, at 4:11, Vinod Wahi wrote: >>> >>> Thanks for your efforts Dale. >>> On 19 April 2011 02:37, Dale Ensing wrote: >>> >>>> Vinod >>>> I'll look thru my files for a picture. >>>> >>>> >>>> ----- Original Message ----- >>>> *From:* Vinod Wahi >>>> *To:* lycomingengines-list@matronics.com >>>> *Sent:* Monday, April 18, 2011 12:13 PM >>>> *Subject:* Re: LycomingEngines-List: Baffle Springs >>>> >>>> Dale, >>>> do you have a picture? >>>> >>>> On 18 April 2011 16:44, Dale Ensing wrote: >>>> >>>>> densing@carolina.rr.com> >>>>> >>>>> Mick >>>>> Another solution I used.... >>>>> Cut the heads off from four 1 inch 4-40 screws. Peen a flat on the cut >>>>> end of the screws. Drill a hole in the flat for safety wire. Connected each >>>>> end of pre-measured length of safety wire to a screw. Insert a screw, with >>>>> an adjustment nut already on screw, into hole in each baffle. Install all >>>>> metal lock nut on end of each screw. Adjust for proper length and tighten >>>>> nuts. >>>>> Dale >>>>> >>>>> Sent from my iPad >>>>> >>>>> On Apr 18, 2011, at 3:26 AM, "mullokintyre" >>>>> wrote: >>>>> >>>>> mmul6471@bigpond.net.au> >>>>> > >>>>> > I have seen a number of solutions to tying together the front and >>>>> rear baffles underneath the cylinders on an o_320, >>>>> > One solution is to attach springs. That's good, but no one seems to >>>>> have any idea of the spring size, tension etc etc >>>>> > 2Second solution is to use steel tie wire with a washer at either >>>>> end. But I have difficulty picturing this - how do you stop the wire from >>>>> untwisting? And what length of wire do you start off with?? Both attempts I >>>>> have had result in the twisted wire breaking before it takes up the slack >>>>> and tightens the two baffles. >>>>> > 3. >>>>> > On another aircraft (production) I have seen a rod with both ends >>>>> threaded that takes very small all steel lock nuts. >>>>> > This is the solution I want, but can't find any part numbers in my >>>>> Lycoming parts book. >>>>> > Anyone have an idea where I might find them?? >>>>> > Thanks, >>>>> > Mick >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > Read this topic online here: >>>>> > >>>>> > http://forums.matronics.com/viewtopic.php?p=337311#337311 >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> >tures Navigator to browse >>>>> s.com/Navigator?LycomingEngines-List" target="_blank"> >>>>> http://www.matronics.com/Navigator?LycomingEngines-List >>>>> ronics.com/" target="_blank">http://forums.matronics.com >>>>> Matt Dralle, List Admin. >>>>> ==== >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>>> -- >>>> Vinod Wahi >>>> >>>> Mailto:vinod.wahi@googlemail.com >>>> www.wahi-air.com >>>> Tel.:+49 172 4038 502 >>>> >>>> * >>>> >>>> s-List">http://www.matronics.com/Navigator?LycomingEngines-Listics.commatronics.com/contribution >>>> * >>>> >>>> * >>>> >>>> >>>> s-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngines-List >>>> >>>> ttp://forums.matronics.com >>>> _blank">http://www.matronics.com/contribution >>>> * >>>> >>>> >>> >>> >>> -- >>> Vinod Wahi >>> >>> Mailto:vinod.wahi@googlemail.com >>> www.wahi-air.com >>> Tel.:+49 172 4038 502 >>> >>> * >>> >>> * >>> >>> * >>> >>> s-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngines-List >>> ttp://forums.matronics.com >>> _blank">http://www.matronics.com/contribution >>> * >>> >>> >> >> >> -- >> Vinod Wahi >> >> Mailto:vinod.wahi@googlemail.com >> www.wahi-air.com >> Tel.:+49 172 4038 502 >> >> * >> >> s-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngines-List >> ttp://forums.matronics.com >> _blank">http://www.matronics.com/contribution >> * >> >> > * > > * > > -- Vinod Wahi Mailto:vinod.wahi@googlemail.com www.wahi-air.com Tel.:+49 172 4038 502 ________________________________ Message 4 _____________________________________ Time: 09:17:49 AM PST US From: "Dale Ensing" Subject: Re: LycomingEngines-List: Baffle Springs It is a bit of light work ....sounds more than it is.. BUT, I don't have any problems with the hole failing in the aluminum baff le after 6 years. And, there is no need to remove the baffle.... ----- Original Message ----- From: FLYaDIVE To: lycomingengines-list@matronics.com Sent: Tuesday, April 26, 2011 9:04 AM Subject: Re: LycomingEngines-List: Baffle Springs Dale: WAY TOO MUCH WORK! Vinod... This is what you do... Just get a 4-40 threaded rod - - A few 4-40 Locking Nuts [NOT ELASTIC STO P NUTS // NYLON LOCK NUTS <--- NOT!] Cut the rod 1 1/2" longer than the spacing between the baffle flaps. Install a Lock Nut at each end and tighten down just enough to hold the s hape of the baffle curve next to the cylinders. THAT IS ALL - YOU ARE DONE! But ... Tthere is always a BUT! The part that FAILS is the HOLE in the ALUMINUM Baffle. To prevent this - - Well, that is a bit more work. Install a BRASS GROMMET in the hole. Peen over the part that goes throug h to hole in in and lock the position. The HARD parts about this are: 1 - Finding or making the Brass Grommet. 2 - Peening it.... The baffling usually has to be removed. There are a f ew tricks with a rivet squeezing tool BUT you would need a rivet squeezing tool and die. Sorry I can't make this part as easy as the first. Hope you have baffles that have the hole? Barry ======================== ===== On Tue, Apr 26, 2011 at 5:29 AM, Vinod Wahi w rote: Hi Dale Thanks any way. Vinod On 23 April 2011 17:31, Dale Ensing wrote: Sorry Vinod, could not find a picture. Sent from my iPhone On Apr 19, 2011, at 4:11, Vinod Wahi wrot e: Thanks for your efforts Dale. On 19 April 2011 02:37, Dale Ensing wrote : Vinod I'll look thru my files for a picture. ----- Original Message ----- From: Vinod Wahi To: lycomingengines-list@matronics.com Sent: Monday, April 18, 2011 12:13 PM Subject: Re: LycomingEngines-List: Baffle Springs Dale, do you have a picture? On 18 April 2011 16:44, Dale Ensing w rote: ing@carolina.rr.com> Mick Another solution I used.... Cut the heads off from four 1 inch 4-40 screws. Peen a flat o n the cut end of the screws. Drill a hole in the flat for safety wire. Conn ected each end of pre-measured length of safety wire to a screw. Insert a s crew, with an adjustment nut already on screw, into hole in each baffle. In stall all metal lock nut on end of each screw. Adjust for proper length and tighten nuts. Dale Sent from my iPad On Apr 18, 2011, at 3:26 AM, "mullokintyre" wrote: > > I have seen a number of solutions to tying together the fro nt and rear baffles underneath the cylinders on an o_320, > One solution is to attach springs. That's good, but no one seems to have any idea of the spring size, tension etc etc > 2Second solution is to use steel tie wire with a washer at either end. But I have difficulty picturing this - how do you stop the wir e from untwisting? And what length of wire do you start off with?? Both att empts I have had result in the twisted wire breaking before it takes up the slack and tightens the two baffles. > 3. > On another aircraft (production) I have seen a rod with bot h ends threaded that takes very small all steel lock nuts. > This is the solution I want, but can't find any part number s in my Lycoming parts book. > Anyone have an idea where I might find them?? > Thanks, > Mick > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=337311#337311 > > > > > > > > > >tures Navigator to browse s.com/Navigator?LycomingEngines-List" target="_blank">http: //www.matronics.com/Navigator?LycomingEngines-List ronics.com/" target="_blank">http://forums.matronics.com Matt Dralle, List Admin. ==== -- Vinod Wahi Mailto:vinod.wahi@googlemail.com www.wahi-air.com Tel.:+49 172 4038 502 s-List">http://www.matronics.com/Navigator?LycomingEngines-List ics.com matronics.com/contribution s-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngine s-List ttp://forums.matronics.com _blank">http://www.matronics.com/contribution -- Vinod Wahi Mailto:vinod.wahi@googlemail.com www.wahi-air.com Tel.:+49 172 4038 502 s-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngine s-List ttp://forums.matronics.com _blank">http://www.matronics.com/contribution -- Vinod Wahi Mailto:vinod.wahi@googlemail.com www.wahi-air.com Tel.:+49 172 4038 502 s-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngine s-List ttp://forums.matronics.com _blank">http://www.matronics.com/contribution ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message lycomingengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/LycomingEngines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/lycomingengines-list Browse Digests http://www.matronics.com/digest/lycomingengines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.