frost/core plug issue - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 09-20-2010, 04:34 PM
Registered User
Join Date: Sep 2010
Location: Davenport, Iowa
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
frost/core plug issue

So i was out driving my truck around now that i just got the tranny finished up, and about a mile away from home i start smelling coolant and hear a loud steaming noise. I pull over and to my surprise the frost plug next to the motor mount had a hole blown in it and it was blowing coolant out. I got it home and the thing was badly overheated. Im an idiot, yes i know. Im now wondering is there a way to change out the frost plug w/o pulling the motor? I wanted to rebuild it anyways but wanted to wait till december to start that project. Id like to get a few more months out of it before i rebuild... Any help would be appreciated!

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 09-20-2010, 04:35 PM
Registered User
Join Date: Sep 2010
Location: Davenport, Iowa
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
its a 360 ci motor
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 09-20-2010, 05:35 PM
richard stewart 3rd's Avatar
Registered User

Last journal entry: 351W rebuild
Last photo:
Join Date: Jan 2006
Location: tremont, pa.
Age: 72
Posts: 2,263
Wiki Edits: 0

Thanks: 26
Thanked 33 Times in 31 Posts
Hi, There is a rubber plug w/a bolt, nut, & washer, you insert the plug then tighten the nut,
as you tighten the nut it forces the rubber to expand & seal the hole.
Good luck,
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-20-2010, 05:37 PM
bigdog7373's Avatar
Of course it's fast
Last photo:
Join Date: May 2010
Location: florida
Posts: 2,670
Wiki Edits: 0

Thanks: 13
Thanked 49 Times in 49 Posts
It's a freeze plug btw.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-20-2010, 05:51 PM
Irelands child's Avatar
Registered User
Last wiki edit: Ford engine specifications Last photo:
Join Date: Jan 2005
Location: Upstate New York
Posts: 5,368
Wiki Edits: 8

Thanks: 59
Thanked 530 Times in 410 Posts
Originally Posted by bigdog7373
It's a freeze plug btw.
Nope - a core plug and is used to remove casting sand. For it to be of any use as a "freeze" protection plug, it would literally have to cover the entire side of the engine. For whatever reason, it has always been called a freeze plug - but...

Dave W
Irelands child
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 09-20-2010, 07:35 PM
cobalt327's Avatar
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Posts: 5,031
Wiki Edits: 1616

Thanks: 128
Thanked 616 Times in 565 Posts
Core plugs, frost plugs, freeze plugs, soft plugs, welch plugs, expansion plugs, those danged rusted out leaking plugs- it's all good. Maybe not textbook accurate, but the parts man should get the drift.

AFA replacing a bad one, much depends on how much elbow room you have to work with.

Inside most engine compartments, there's precious little room to use for levering the soft plugs out from their holes.

A seal puller can be used if a hole or notch is made to hook the end into- but the tool is like a foot or more long.

You can in some cases, knock the plug into the water jacket Partially or completely), then grab an edge w/a channel lock and lever them out, but again- there's the problem of having or making enough room to do this in.

Like Richard said, there are rubber expansion plugs that can be used to replace a bad plug- they are tightened w/a nut/washer that causes the plug to expand, so if you can get the bad one out, you can use that to replace it- it will last a couple years- but if one has gone, the rest are not far behind, so get to them all ASAP...
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
What model Delco Plug is the right one DarknessSpawned Engine 1 04-04-2008 07:05 PM
Never done pocket/combustion chamber porting Urbanfarmer Engine 12 09-10-2007 10:41 PM
plug / valve problem...again Speakrdude Engine 18 05-30-2007 01:00 PM
Two Plug Alternator coverted to four plug L_Maddox Electrical 6 04-27-2007 08:16 PM
Ford 2 bbl carb issue - detailed question V Bird Engine 6 08-10-2005 11:43 AM

All times are GMT -6. The time now is 08:52 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.