1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

360 Freeze plug

Thread Tools
 
Search this Thread
 
  #1  
Old 12-15-2018, 08:26 AM
MtnDweller's Avatar
MtnDweller
MtnDweller is offline
New User
Thread Starter
Join Date: Dec 2018
Location: Arvada Colorado
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
360 Freeze plug

So While flushing the coolant system in Ole Gael I found that a freeze plug was leaking. A little further investigation is that it has a hole in from rusting through. I have been trying to figure out how to replace it without removing the motor so I supported the engine and removed the motor mount that is in the way and was thinking that I could knock out the old one. But that seems to much more difficult than I anticipated.
Anyone know any tricks?
 
  #2  
Old 12-15-2018, 10:42 AM
kenny nunez's Avatar
kenny nunez
kenny nunez is offline
Fleet Mechanic
Join Date: Oct 2011
Location: Kenner,La.
Posts: 1,869
Received 166 Likes on 128 Posts
Freeze/core plug

The correct size of the plug is 2 & 49/64”. They can be really hard to install. I must say that particular job was the one I hated the most working at my Dad’s shop. There is a rubber expander plug which may get you running again. Just be sure that the hole is clean and dry and do not use any sealant otherwise the plug will not stay in. When you knock out the old plug get ready to get pelted with the casting mud that is in the cooling jacket. Try to hose out as much as possible. Good luck
 
  #3  
Old 12-15-2018, 11:17 AM
NumberDummy's Avatar
NumberDummy
NumberDummy is offline
Ford Parts Specialist

Join Date: Nov 2006
Location: Simi Valley, CA
Posts: 88,826
Received 648 Likes on 543 Posts
Originally Posted by kenny nunez
The correct size of the plug is 2 & 49/64."
FE freeze plugs are 1.75" O.D.
 
  #4  
Old 12-15-2018, 05:05 PM
MtnDweller's Avatar
MtnDweller
MtnDweller is offline
New User
Thread Starter
Join Date: Dec 2018
Location: Arvada Colorado
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by NumberDummy
FE freeze plugs are 1.75" O.D.
yep. Worked out well.
It was easier than I thought it’d be. Just punched it in on one side and it spun so I could grab it with some pliers.
Then used a socket and hammer to press the new one back in.
 
  #5  
Old 12-16-2018, 04:33 AM
GaryKip's Avatar
GaryKip
GaryKip is offline
Logistics Pro
Join Date: Aug 2015
Location: Lind, WA- Eastern WA
Posts: 4,092
Received 13 Likes on 13 Posts
Good job! I bought a set of brass ones, I'll have to do them this winter, before I put the headers on.
 
  #6  
Old 12-16-2018, 10:35 AM
kenny nunez's Avatar
kenny nunez
kenny nunez is offline
Fleet Mechanic
Join Date: Oct 2011
Location: Kenner,La.
Posts: 1,869
Received 166 Likes on 128 Posts
Red face Freeze/core plugs

I have used 2 3/4” core plugs many times and just last night at our Ford club’s party, one of our members is a engine rebuilder. He also uses the 2 3/4” plugs.
There is a new publication # sa352 Workbech How-to by Barry Rabotnick on the FE and how to rebuild them. He claims that the 2 49/64” is the correct size. I realize that this is “splitting hairs” but it would be interesting to know which is the correct plug.
I am sure that pounding in the larger plug while the engine is on a stand is not too hard. So the smaller is easier to install from underneath with a drop light burning your arm and water dripping in your face while the creeper is moving too much or stuck against the jack stand and at the same time making comments about the parentage of the vehicle you are under adds to the fun because you just hit your hand with the hammer.
 
  #7  
Old 12-16-2018, 11:16 AM
MtnDweller's Avatar
MtnDweller
MtnDweller is offline
New User
Thread Starter
Join Date: Dec 2018
Location: Arvada Colorado
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by kenny nunez
I have used 2 3/4” core plugs many times and just last night at our Ford club’s party, one of our members is a engine rebuilder. He also uses the 2 3/4” plugs.
There is a new publication # sa352 Workbech How-to by Barry Rabotnick on the FE and how to rebuild them. He claims that the 2 49/64” is the correct size. I realize that this is “splitting hairs” but it would be interesting to know which is the correct plug.
I am sure that pounding in the larger plug while the engine is on a stand is not too hard. So the smaller is easier to install from underneath with a drop light burning your arm and water dripping in your face while the creeper is moving too much or stuck against the jack stand and at the same time making comments about the parentage of the vehicle you are under adds to the fun because you just hit your hand with the hammer.
😂😂
I'm not real sure which is official but I do know that Napa gives you a 2-3/4 in a freeze plug kit for a 72 Ford 360 and it went in without leaking.
 
  #8  
Old 12-16-2018, 01:05 PM
NumberDummy's Avatar
NumberDummy
NumberDummy is offline
Ford Parts Specialist

Join Date: Nov 2006
Location: Simi Valley, CA
Posts: 88,826
Received 648 Likes on 543 Posts
Originally Posted by MtnDweller

����
I'm not real sure which is official but I do know that Napa gives you a 2-3/4 in a freeze plug kit for a 72 Ford 360 and it went in without leaking.

How can a 2 3/4" core plug replace a 1 3/4" (1.75") core plug?

Pic: See C8AZ-6026-A




 
  #9  
Old 12-16-2018, 03:27 PM
Tedster9's Avatar
Tedster9
Tedster9 is offline
Post Fiend
Join Date: Apr 2002
Location: Waterloo, Iowa
Posts: 19,311
Likes: 0
Received 66 Likes on 65 Posts
Originally Posted by kenny nunez
...easier to install from underneath with a drop light burning your arm and water dripping in your face while the creeper is moving too much or stuck against the jack stand and at the same time making comments about the parentage of the vehicle you are under adds to the fun because you just hit your hand with the hammer.
LOL ain't it fun
 
  #10  
Old 12-16-2018, 08:03 PM
MtnDweller's Avatar
MtnDweller
MtnDweller is offline
New User
Thread Starter
Join Date: Dec 2018
Location: Arvada Colorado
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts


Originally Posted by NumberDummy
How can a 2 3/4" core plug replace a 1 3/4" (1.75") core plug?
😳 1-3/4 is what I meant to say.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jmsmith76
1994.5 - 1997 7.3L Power Stroke Diesel
2
06-16-2013 03:19 PM
rockslut
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
5
03-07-2006 11:26 PM
Seifferlein
1967 - 1972 F-100 & Larger F-Series Trucks
5
08-17-2004 11:48 PM
62stepside
1961 - 1966 F-100 & Larger F-Series Trucks
2
04-09-2003 08:01 AM
mobleyt
1961 - 1966 F-100 & Larger F-Series Trucks
3
07-22-2002 01:33 PM



Quick Reply: 360 Freeze plug



All times are GMT -5. The time now is 03:09 PM.