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#1
07-19-2014, 02:35 PM
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Rear oil galley plug
Guys what size is the infamous plug....
I want to pull it and change it out to a softer one so I can drill it .030.... Unless someone has one drilled already....  ...Thanks Chris
__________________
 1973 Firebird Navajo Orange w/shaker,1973 400/461,1972 Intake SD CNC'd,1977 Q-Jet 800 CFM w/ Cliffs Kit,Tanks Inc PA4 255 Walbro intank pump ,-8an feed/return,RobbMc Regulator,RobbMc 40 micron filter,253 CFM 6x-8's w/H.S 1:5 Roller Rockers,SD Stump Puller H/R Cam 230/236 @.050 112 lobe separation 565/.570 lift,Crower Solid Rollers,28150 Hedman Headers,3" exhaust,full tailpipes,350 Turbo,9.5" 3200 Converter,3:42 gear,8.5 posi,C/E slide-alinks,Koni adj frt shocks,Best 12.18@110.55 Lookin for 11's
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#2
07-19-2014, 03:20 PM
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Oil Gallery Plug will be case hardened. Easy to heat the plug up to cherry red (after it is removed from the block) and then let it cool and drill it to size: .030"-.040" for lubing the distributor gear.
I hope the engine is on a stand. But if the block is on the ground that will work too. Sometimes the plugs need a lot of "leverage" to remove them. Plug is an odd ball size that takes a Male 5/16" square head drive (if memory serves me right) to fit into the plug. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#3
07-19-2014, 04:07 PM
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Yup, 5/16" square!
If you have a long round head punch who's tip will fit in the square then beat on it and you will jar the threads loose and then be able to back the plug out.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#4
07-19-2014, 04:39 PM
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thanks for the tips guys
__________________
1973 Firebird Navajo Orange w/shaker,1973 400/461,1972 Intake SD CNC'd,1977 Q-Jet 800 CFM w/ Cliffs Kit,Tanks Inc PA4 255 Walbro intank pump ,-8an feed/return,RobbMc Regulator,RobbMc 40 micron filter,253 CFM 6x-8's w/H.S 1:5 Roller Rockers,SD Stump Puller H/R Cam 230/236 @.050 112 lobe separation 565/.570 lift,Crower Solid Rollers,28150 Hedman Headers,3" exhaust,full tailpipes,350 Turbo,9.5" 3200 Converter,3:42 gear,8.5 posi,C/E slide-alinks,Koni adj frt shocks,Best 12.18@110.55 Lookin for 11's
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#5
07-19-2014, 04:51 PM
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BTW, it's a 3/8" pipe plug. I drill them by spinning a .030" drill bit real fast in a drill press. Then, holding the plug in my fingers, with both hands, I slowly feed the plug up into the drill bit until it goes through. Start drilling from inside the Allen wrench hole so the burr when the drill bit comes through will be on the flat, back side of the plug for easy de-burring. I have never broken a drill bit drilling them this way. If you feed the drill bit down into the plug, you will most certainly break the drill bit.
__________________
Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
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#6
07-19-2014, 05:07 PM
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Thanks Paul....
__________________
1973 Firebird Navajo Orange w/shaker,1973 400/461,1972 Intake SD CNC'd,1977 Q-Jet 800 CFM w/ Cliffs Kit,Tanks Inc PA4 255 Walbro intank pump ,-8an feed/return,RobbMc Regulator,RobbMc 40 micron filter,253 CFM 6x-8's w/H.S 1:5 Roller Rockers,SD Stump Puller H/R Cam 230/236 @.050 112 lobe separation 565/.570 lift,Crower Solid Rollers,28150 Hedman Headers,3" exhaust,full tailpipes,350 Turbo,9.5" 3200 Converter,3:42 gear,8.5 posi,C/E slide-alinks,Koni adj frt shocks,Best 12.18@110.55 Lookin for 11's
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#7
07-19-2014, 08:00 PM
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Another way to go is to cut a slot with a hack saw on the thread side of the original plug but not all the way to the edge, then just use the drill bit to go thru the last.060" of plug.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#8
07-19-2014, 09:32 PM
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Chris, if it's the engine you've rebuilt a couple of times, the factory plug should be long gone. If so, the plug in there should require an allen head for removal.
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears (Traded) '69 LeMans Vert, 350, #47 heads: Non-running project |
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#9
07-20-2014, 11:54 AM
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Quote:
I guess I should have stated that my bad 
__________________
1973 Firebird Navajo Orange w/shaker,1973 400/461,1972 Intake SD CNC'd,1977 Q-Jet 800 CFM w/ Cliffs Kit,Tanks Inc PA4 255 Walbro intank pump ,-8an feed/return,RobbMc Regulator,RobbMc 40 micron filter,253 CFM 6x-8's w/H.S 1:5 Roller Rockers,SD Stump Puller H/R Cam 230/236 @.050 112 lobe separation 565/.570 lift,Crower Solid Rollers,28150 Hedman Headers,3" exhaust,full tailpipes,350 Turbo,9.5" 3200 Converter,3:42 gear,8.5 posi,C/E slide-alinks,Koni adj frt shocks,Best 12.18@110.55 Lookin for 11's
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#10
07-20-2014, 01:21 PM
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Snap on males a special socket that fits the 5/16 square, Chris may not need it, but...
They also make a set of all those oddball squares, male and female...
__________________
1977 Black Trans Am 180 HP Auto, essentially base model T/A. I'm the original owner, purchased May 7, 1977. Shut it off Shut it off Buddy, I just shut your Prius down... 
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#11
07-20-2014, 01:59 PM
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A long 1/2 drive extension works good for popping out the rear freeze plug to get to it on an assembled short block too.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#12
07-20-2014, 05:00 PM
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If it's a hex drive, it's a 5/16" or 8mm also works.
__________________
Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
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#13
07-20-2014, 08:39 PM
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I considered the cost of the hex plug plus my time to drill them. Pontiac Dude has these available for a couple of bucks each. I bought a handful from him last time I ordered something. It was an easy decision to make
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#14
07-20-2014, 08:46 PM
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Quote:
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"Three may keep a secret, if two are dead" ~ Benjamin Franklin ~ |
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