Re: weeping freeze plugs
[Re: Sport383]
#2738103
01/30/20 02:27 PM
01/30/20 02:27 PM
|
Joined: Jun 2004
Posts: 3,390 St. Charles, MO
wingman
Uncreative Title
|
Uncreative Title
Joined: Jun 2004
Posts: 3,390
St. Charles, MO
|
Brass or steel? How long have they been installed?
1969 Dodge Coronet Super Bee 383 A4 1970 Plymouth Road Runner 440 FC7 (sold)
|
|
|
Re: weeping freeze plugs
[Re: Sport383]
#2738112
01/30/20 02:40 PM
01/30/20 02:40 PM
|
Joined: Jan 2003
Posts: 13,385 Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,385
Marion, South Carolina [><]
|
Blue Devil. It's a stop leak additive from your local parts store.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
|
|
|
Re: weeping freeze plugs
[Re: Sport383]
#2738141
01/30/20 04:27 PM
01/30/20 04:27 PM
|
Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
master
|
master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
|
[quote=Sport383]I have three weeping freeze plugs on my 383 cylinder heads. I can replace two without removing the heads. They only weep when it is cold but seem to seal up when the engine warms up. is there a good leak stop additive on the market to use to seal up the one I can not replace? Advice, recommendations, and snide remarks welcome because they are out there. Thanks in advance. [/quote Do it now the right way,you will have to eventually do it anyway !
|
|
|
Re: weeping freeze plugs
[Re: dOc !]
#2738172
01/30/20 06:24 PM
01/30/20 06:24 PM
|
Joined: Jan 2003
Posts: 4,287 Morrow, OH
markz528
master
|
master
Joined: Jan 2003
Posts: 4,287
Morrow, OH
|
Sounds like they are rusted. If so, you are pushing a rope with a sealant for long term fix. Sealant should work for a while but will start leaking again.
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
|
|
|
Re: weeping freeze plugs
[Re: Sport383]
#2738253
01/30/20 10:03 PM
01/30/20 10:03 PM
|
Joined: Aug 2003
Posts: 43,284 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,284
Bend,OR USA
|
Alumaseal (SP?) It comes in a small tube, it is a powder. It works great, use all the tube and follow the directions
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: weeping freeze plugs
[Re: markz528]
#2738358
01/31/20 11:01 AM
01/31/20 11:01 AM
|
Joined: Jun 2004
Posts: 3,390 St. Charles, MO
wingman
Uncreative Title
|
Uncreative Title
Joined: Jun 2004
Posts: 3,390
St. Charles, MO
|
Sounds like they are rusted. If so, you are pushing a rope with a sealant for long term fix. Sealant should work for a while but will start leaking again. Unfortunately I agree with this. Sealants may help for a while, but based on the length of time that they have been in there, it sounds like your steel plugs are on their way out. The problem with limping them along is that one day under pressure one may fail completely and leave you stranded (best case) or overheat your engine (worst case).
1969 Dodge Coronet Super Bee 383 A4 1970 Plymouth Road Runner 440 FC7 (sold)
|
|
|
Re: weeping freeze plugs
[Re: Neil]
#2738496
01/31/20 07:52 PM
01/31/20 07:52 PM
|
Joined: Dec 2009
Posts: 20,660 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
|
Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,660
in a cattle trailer down by th...
|
They are rusted. Best plan is pull the engine and replace them all then you are done with it.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
|
|
|
Re: weeping freeze plugs
[Re: topside]
#2738528
01/31/20 09:52 PM
01/31/20 09:52 PM
|
Joined: Oct 2003
Posts: 3,379 KY USA
mopargem
master
|
master
Joined: Oct 2003
Posts: 3,379
KY USA
|
I really wouldn't want that time-bomb ticking away, worrying about it every time I take the car out. Do the right thing, pull it apart as needed, and give it the permanent repair. If the freeze plugs in the heads are going away, I'd also wonder about the ones in the block. Granted, it's a PITA, and I don't envy anyone with that problem.
If there's enough access to the rear ones in the car, maybe a right-angle drill would help. I'm thinking drill a hole that you can screw a fastener into and pry the plug out. Might as well split the transmission and get those on the back of the block as well
|
|
|
Re: weeping freeze plugs
[Re: mopargem]
#2738537
01/31/20 10:10 PM
01/31/20 10:10 PM
|
Joined: Aug 2006
Posts: 2,533 God's Country Maryland
GODSCOUNTRY340
master
|
master
Joined: Aug 2006
Posts: 2,533
God's Country Maryland
|
I really wouldn't want that time-bomb ticking away, worrying about it every time I take the car out. Do the right thing, pull it apart as needed, and give it the permanent repair. If the freeze plugs in the heads are going away, I'd also wonder about the ones in the block. Granted, it's a PITA, and I don't envy anyone with that problem.
If there's enough access to the rear ones in the car, maybe a right-angle drill would help. I'm thinking drill a hole that you can screw a fastener into and pry the plug out. Might as well split the transmission and get those on the back of the block as well There are no freeze plugs on the front or rear of the block on big blocks, just the cam plug.
I love the smell of Deer guts in the morning, it smells like... VICTORY!
|
|
|
Re: weeping freeze plugs
[Re: Sport383]
#2738578
01/31/20 11:55 PM
01/31/20 11:55 PM
|
Joined: Jan 2003
Posts: 1,908 Nebraska
4406bbl
top fuel
|
top fuel
Joined: Jan 2003
Posts: 1,908
Nebraska
|
I have three weeping freeze plugs on my 383 cylinder heads. I can replace two without removing the heads. They only weep when it is cold but seem to seal up when the engine warms up. is there a good leak stop additive on the market to use to seal up the one I can not replace? Advice, recommendations, and snide remarks welcome because they are out there. Thanks in advance. If I was you I would pull the motor, knock out all of the plugs, then wash the 1-2" of dirt and rust out of the bottom of the block with a hose. That is what I see when I see cars that have sat a lot. You might want think new head gaskets if they are steel shim type, and the spring in the lower hose will also be rusty or gone. It does not take long once you decide to fix it right.
|
|
|
|
|