Engine block hose barb.
Thread Starter
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Laughing Gas
Joined: Mar 2016
Posts: 757
Likes: 43
From: Cheyenne, Wy
Engine block hose barb.
Heater hose engine barb
I have the replacement. How do I get this out? It is brass. I have had mapp gas heat on it about 13-15 minutes. It is so corroded to the engine block.
I've tried vise grips, channel locks. They deform the nipple piece but will not break the bond between nipple and block.
Last edited by black & blue 78/9; Mar 29, 2020 at 10:17 AM. Reason: Title change
Thread Starter
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Laughing Gas
Joined: Mar 2016
Posts: 757
Likes: 43
From: Cheyenne, Wy
Thanks for the response. I have today only. Tomorrow I start another 11 days working. 10 -12 hours. I finally got it loose but it drove down into the block. So now I have. 1/4-3/8" sticking out of the block. One problem turns into a worse problem.
Mountain Pass
Joined: May 2006
Posts: 217
Likes: 5
piece by tiny piece.
try chipping away at it with a small chisel, attempt to collapse it inward.
small grinder like a Dremel, be careful not to cut into the block. that weakens it before chiseling.
have a set of thread taps? measure the inner & outer diameter and run a fine tap down it.
then you can try putting a bolt in and slide hammer it out. thread grooves also weaken it for easier chiseling.
edit: now that you've knocked it loose, try the tap 'n thread method.
you can insert a bolt into it so the vice grips don't crush it.
try chipping away at it with a small chisel, attempt to collapse it inward.
small grinder like a Dremel, be careful not to cut into the block. that weakens it before chiseling.
have a set of thread taps? measure the inner & outer diameter and run a fine tap down it.
then you can try putting a bolt in and slide hammer it out. thread grooves also weaken it for easier chiseling.
edit: now that you've knocked it loose, try the tap 'n thread method.
you can insert a bolt into it so the vice grips don't crush it.
Last edited by 78Broncoinpieces; Mar 28, 2020 at 06:10 PM. Reason: more B. S.
FTE Legend
Joined: Nov 2015
Posts: 30,940
Likes: 4,125
From: Angier, NC
How about a hack saw blade and try cutting it from the inside out, again being careful not to cut into the block.
Once cut some you could also fold it in and peal it out.
Dave ----
Once cut some you could also fold it in and peal it out.
Dave ----
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Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
The heater hose nipple is steel. You are also going about it the wrong way. The proper and easy way is to take a chisel and indent the old piece vertical. It will collapse the tube and will pull right out. The new one is installed with gasket tack or aviation sealer.
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Thread Starter
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Laughing Gas
Joined: Mar 2016
Posts: 757
Likes: 43
From: Cheyenne, Wy
Thanks to all that responded. I got it out. Finally.
Ford360gashog... I did usr a chisel to dent it but I went horizontal (ooooops. I didn't know) Anyway, now that I have it out, now I have a new problem. In a previous thread titled "What size" I was given the ford number for this nipple. It should have been 5/8". It is actually a 3/4" bore and nipple.
Does anyone know the ford number for the 3/4" nipple.
Vehicle... 79 bronco 351m and 79 f150 scab 400 (6.6))L)
Ford360gashog... I did usr a chisel to dent it but I went horizontal (ooooops. I didn't know) Anyway, now that I have it out, now I have a new problem. In a previous thread titled "What size" I was given the ford number for this nipple. It should have been 5/8". It is actually a 3/4" bore and nipple.
Does anyone know the ford number for the 3/4" nipple.
Vehicle... 79 bronco 351m and 79 f150 scab 400 (6.6))L)
Cargo Master
Joined: May 2010
Posts: 3,365
Likes: 12
From: NW Indiana
Glad you got it out....any good hardware should have that barb. Ask for 3/4 pipe with 5/8 barb if that's how yours is set up. Make sure it doesn't have a hex on the nipple. Looks like it would interfere as the threads look a little deep from Rich's pic in the other thread.
Thread Starter
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Laughing Gas
Joined: Mar 2016
Posts: 757
Likes: 43
From: Cheyenne, Wy
Thank you
Thanks to all that responded.
Someone suggested to tap the hole as a 3/8 NPT. I would like to do that but the way my BAD luck is going, the tap would break in the hole. I have a HF tap/die set but the taps are more for thread clean up than cutting.
Is the 3/4" bore hole the correct size to properly tap a 3/8NPT ? Would I have to drill it slightly bigger? Either way, I have to wait for another day off and decent weather.
Someone suggested to tap the hole as a 3/8 NPT. I would like to do that but the way my BAD luck is going, the tap would break in the hole. I have a HF tap/die set but the taps are more for thread clean up than cutting.
Is the 3/4" bore hole the correct size to properly tap a 3/8NPT ? Would I have to drill it slightly bigger? Either way, I have to wait for another day off and decent weather.
Fleet Mechanic
Joined: Jan 2012
Posts: 1,668
Likes: 13
From: Saskatchewan
Pretty sure when I did my 400 all I did was drill it out to 23/32 or whatever size your supposed to for a 1/2” npt tap. Tapped some threads in it and installed a 1/2” npt x 5/8” hose barb fitting. Worked great.