TeamGrumman-List Digest Archive

Thu 01/19/12


Total Messages Posted: 1



Today's Message Index:
----------------------
 
     1. 08:52 PM - New larger battery tray: First install (Gary Vogt)
 
 
 


Message 1


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    Time: 08:52:55 PM PST US
    From: Gary Vogt <teamgrumman@yahoo.com>
    Subject: New larger battery tray: First install
    I had asked John Coze to let me see his aft-mounted battery tray in his 6 c ylinder Cheetah/Tiger. -I pushed on the side to see how rigid the install ation was a was surprised to see it move around a lot. -I guess cutting o ff the end so a larger (longer) battery can be installed is not a great ide a.=0A=0AJohn chose to have me install my new battery tray.=0A=0AWhat I foun d was quite interesting. -Of the 4 screws/bolts holding the tray in place , no two were alike. -Well, they each had the same lock nuts. -Two crew s on the outboard side were next to impossible to remove. -Note to self: install nut plates. -Each of those screws were different as were the wash ers used. -Both screws were WAAAAY too long. -One a half inch longer th an the other. -Makes removing a lock nut a pain-in-the-ass. -Neither of the two bolts on the inboard side were the same. -One was just barely lo ng enough to install a lock nut, sans washer.=0A=0AI installed the new tray with new hardware: -2 AN3-11A bolts on top (the cross brace adds thickne ss) and 2 AN3-7A bolts on the bottom. -All bolts got AN970-3 on the back (against the honeycomb) and on the battery tray side. -Turns out there is enough room to use them there also. -I used MS21042-L3 nuts on all bolts .=0A=0AUnfortunately, the aluminum 'bobbin' spacers were never used and the honeycomb is crushed a little. -Can't get in there to open up the honeyc omb to install them either.




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