Freeze Plug

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Freeze Plug

Post  bigjohn2007 on April 1st 2014, 1:31 pm

What you guys think of using rubber freeze plugs with the bolt in the center that expands for sealing the plug to block?
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Re: Freeze Plug

Post  Dave C. on April 1st 2014, 3:00 pm

Negative

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Re: Freeze Plug

Post  kim on April 1st 2014, 6:51 pm

Not even a medicore idea on a junk yard truck.

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Re: Freeze Plug

Post  maverick on April 1st 2014, 8:02 pm

^^^^^^^^^That's the kind of stuff you'd use to get your car limped off the roadside so you could fix it right.^^^^^^
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Re: Freeze Plug

Post  bigjohn2007 on April 2nd 2014, 12:12 am

maverick wrote:^^^^^^^^^That's the kind of stuff you'd use to get your car limped off the roadside so you could fix it right.^^^^^^
10-4 lol
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Re: Freeze Plug

Post  DILLIGASDAVE on April 2nd 2014, 3:30 am

Maybe I have just been lucky but I have used them, (and even re-used them) a number of times in the past & never had any problems with them.
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Re: Freeze Plug

Post  bbf-falcon on April 2nd 2014, 12:21 pm

maverick wrote:^^^^^^^^^That's the kind of stuff you'd use to get your car limped off the roadside so you could fix it right.^^^^^^

xactly Very Happy 

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Re: Freeze Plug

Post  bigjohn2007 on April 5th 2014, 3:44 pm

I took yall guys advice...... Very Happy 
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Re: Freeze Plug

Post  jasonf on April 5th 2014, 10:20 pm

I've actually used them for long term. The 460 I swapped into my 86 would blow frost plugs out occasionally. The one up under the motor mount could not be replaced so I used one of those rubber ones in there. That was over 12 years ago and it is still going strong. I would use the proper one if it is accessible however.
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Re: Freeze Plug

Post  steven gregoire on April 7th 2014, 11:59 am

are you having an issue with spitting out freeze plugs or something?
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Re: Freeze Plug

Post  bigjohn2007 on April 7th 2014, 12:57 pm

steven gregoire wrote:are you having an issue with spitting out freeze plugs or something?
No, just had one with slow leak so I replaced it.
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Re: Freeze Plug

Post  whatbumper on April 7th 2014, 2:51 pm

Core plugs are great for casting blocks.




Other than that who cares what kind of plug you put in there. We just thread the holes and run a screw in plug with sealant.

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Re: Freeze Plug

Post  bigjohn2007 on April 10th 2014, 10:48 pm

whatbumper wrote:Core plugs are great for casting blocks.




Other than that who cares what kind of plug you put in there.  We just thread the holes and run a screw in plug with sealant.
What size tap and screw in plugs do i need?Any picture or sites would be very helpful.Thanks
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Re: Freeze Plug

Post  whatbumper on April 10th 2014, 10:55 pm

To be honest I have no idea what size they are.  We had an old man give us a bunch of machining stuff and we just happened to make them work.  I'm not sure what size bbf plugs are.  When we did use press in plugs we used permatex glue to seal them.

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Re: Freeze Plug

Post  nuclearcobra on April 11th 2014, 7:32 am

I think it takes two taps to cut them, can't remember tho for sure, I just used the regular brass ones with red lock tight as Lem suggested, its worked great on the last 3 motors.
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Re: Freeze Plug

Post  jeffgfg on April 11th 2014, 8:41 am

It takes an 1-1/4" NPT tap some say you need only one some say you need two taps starter and bottoming.

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Re: Freeze Plug

Post  bigjohn2007 on April 12th 2014, 9:24 pm

anyone got part number for brass ones?
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Re: Freeze Plug

Post  69F100 on April 12th 2014, 11:19 pm

I am at work all night I think I got the number for the brass ones but will have to check tomorrow
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Re: Freeze Plug

Post  bigjohn2007 on April 13th 2014, 1:08 am

69F100 wrote:I am at work all night I think I got the number for the brass ones but will have to check tomorrow
Thanks
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Re: Freeze Plug

Post  bigjohn2007 on April 13th 2014, 6:33 pm

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Re: Freeze Plug

Post  bigjohn2007 on April 18th 2014, 12:01 am

Would like see some pic of engines with freeze plugs ''PIN'' in engine.Have read alot but cant see any good pictures.
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Re: Freeze Plug

Post  69F100 on April 18th 2014, 12:14 am





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Re: Freeze Plug

Post  bigjohn2007 on April 18th 2014, 1:10 am

Thanks, 69 but i was meaning like something about putting screws in 45 degree angle that allows head of screw to hold the plug in case it try blow out.I tried my car last week and one came out  affraid on one hell of a ride.I was bless not to hit wall so now i got a tester to hook it the rad. check pressure.
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screws

Post  460pulling on April 18th 2014, 9:29 am

John,
My dad always just took the soft plug to the vice and drilled 2- 1/8" holes across from each other about 1/4 of the way down the soft plug. Then drive it in the block and use the hole as a guide for whatever size drill bit you need for the size screw your using. I believe he used #6 screws about a 1/2" long and he only drilled into the block about a 1/4". He also put red locktite on the plug before driving it in.  Hope this helps. we had a 351 windsor that we pinned every soft plug, that was for a roundy round car though. Eventually we started putting the screw in type in.

I have also seen guys drive the plug a lil farther and do it like this. http://www.circletrack.com/enginetech/ctrp_0811_freeze_plugs/photo_14.html


Last edited by 460pulling on April 18th 2014, 9:35 am; edited 1 time in total (Reason for editing : added link)

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