A quick freeze plug survey

If I were to do one, I'd seal and your product probably would be the glue. I never had to redo one being down here in the South so I
can't say from experience.
 
(quoted from post at 18:20:28 03/22/22) If I were to do one, I'd seal and your product probably would be the glue. I never had to redo one being down here in the South so I
can't say from experience.
f you want some experience , Mark, I have one leaking on a 350 Chebby behind the flywheel. :shock:
 
Yeah they are holes in the casting to make quality castings. Misnomer to distract the motoring public like a lot of other things we are fed.
 
Sealant; No.-1 permatex hardening formula.. on frost plug edge and edge of block hole.. Smack center of frost plug and let dry.. Sealed.
 
I use #2 permatex and have never had an issue, although aviation sealant would work fine as well. No way would I ever take a chance putting
them in without sealant.
 
They are freeze plugs and hot water heaters.... anything else and you're a foreigner. Try running no antifreeze in your block and find out what they are. And NO... you dont need a heater for your cold water taps. ;)
 
The reason some people call them freeze plugs is because they can in fact pop out when the block freezes with no antifreeze inside. So even though they were not designed for that reason, they do serve a secondary purpose.
 
(quoted from post at 20:58:12 03/22/22) They are freeze plugs and hot water heaters.... anything else and you're a foreigner. Try running no antifreeze in your block and find out what they are. And NO... you dont need a heater for your cold water taps. ;)

I you run plain water and the water freezes, the block can still crack even if there are "freeze plugs". That is not why they are there. The holes are part of the casting process, and the core plugs are there to keep the coolant in the block, not to protect the engine from water freezing.
 
Hahaha! Thanks everyone. I got a good chuckle out of this one. They are called expansion plugs by Dorman. But everyone of you knew what I was talking about.
I'm 65 and they have been "freeze plugs' all my life.
 
I worked for Pontiac in the 70s and early 80s and I had to attend a cracked block repair training session where 301s would freeze and crack the block betweenfreeze out plugs on the sides of the block. I never saw a plug pop out .
 
Your choice. Actually they are Welsh plugs. A very necessary piece to seal holes cast into the block so that all casting mold sand can
be removed. People in freezing climates consider them to be freeze plugs as they may pop out if water in the block freezes. However, if the
Welsh plug is properly installed they likely will not move.
 
(quoted from post at 17:34:25 03/25/22) Your choice. Actually they are Welsh plugs. A very necessary piece to seal holes cast into the block so that all casting mold sand can
be removed. People in freezing climates consider them to be freeze plugs as they may pop out if water in the block freezes. However, if the
Welsh plug is properly installed they likely will not move.


Gas pump, you mean "welch" plug not welsh, and I sure would like to see you get an actual welch plug into a hole for a freeze plug. Old continentals use actual welch plugs if you would like to play with some. And yes I, like Tom posted, know that they are not really freeze plugs but are casting plugs, but who ever calls them a casting plug? Most of us have always called them freeze plugs, so that is what they have become just like many other things. It is worth it to call them freeze plugs just to have a guppie come along every few years and give us a chuckle when he takes the bait.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top