Is the crack fixable?

J

jwk72

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Gibson City, Illinois

Mar 17, 2019

#1

• Mar 17, 2019

• #1

Below, the wider photo has a circle the shows the area of the tighter photo of the crack in question. I was going to replace the head(s) bit my son and I found another car we are going to move onto I think. This is a GT40P head that I was going to scrap but I’ve seen talk that some cracks are repairable depending on their location. Hate to dump a lot of extra money into car if we decide to move on but want to get the car running. Input???

 

RangerJoe

I leave the horn on while driving

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#2

• Mar 17, 2019

• #2

Is that really a crack? Hard to tell in the photo. Whether it is repairable or not, I would say that you could replace the P head cheaper than you could fix it.

Joe

 

FastDriver

I was uncomfortably high & wearing a helmet

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Mar 18, 2019

#3

• Mar 18, 2019

• #3

JB Weld:

View: https://www.youtube.com/watch?v=aVLoJe3JbFI&vl=en


View: https://www.youtube.com/watch?v=587RuL45jS8

I don't know how long it would work, or if it would hold together in an automotive application, but it would be entertaining for us. Honestly, I can't see the crack, even on a nice sized and very bright monitor. I see what looks like a white powder, or calcium deposit or something.

 

Last edited: Mar 18, 2019

K

kendawg73

Well-Known Member

Feb 5, 2014

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Mar 18, 2019

#4

• Mar 18, 2019

• #4

yeah, that doesn't look like a crack to me....and I think that would be the last place it would crack anyway... (to me)

 

KZGUNS

I can swing up to 11”

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Mar 18, 2019

#5

• Mar 18, 2019

• #5

spray wd40 on it and let it soak for a day, then wipe away the the excess and from the back heat it with a heat gun etc. If theres a crack you'll see the oil creep out of the crack. its not scientific like magnaflux but its worked in the past for me.

 

Reactions: RangerJoe, General karthief and 90sickfox

J

jwk72

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Dec 7, 2018

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Gibson City, Illinois

Mar 21, 2019

#6

• Mar 21, 2019

• #6

So I decided to get down to as bare metal as I could and I blasted it with baking soda. I’m no pro but I’m having a hard time seeing much of anything. I circled the area in question again, fire away with opinions!

I’m not sure if I soaked it with wd40 I could back heat it effectively. I’m adding a pic of the bottom side as well. There is a water/coolant port (I assume) there. I’ve shined a light as best I can into it but can’t see anything the resembles a crack.

 

RangerJoe

I leave the horn on while driving

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Mar 21, 2019

#7

• Mar 21, 2019

• #7

I think you are good to go.

Joe

 

FastDriver

I was uncomfortably high & wearing a helmet

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Mar 21, 2019

#8

• Mar 21, 2019

• #8

I'd run it.

 

2Blue2

will be trying this sex one when I can find it

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#9

• Mar 21, 2019

• #9

Never seen one crack there before

 

J

jwk72

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Dec 7, 2018

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Gibson City, Illinois

Mar 21, 2019

#10

• Mar 21, 2019

• #10

Well I guess I feel a little better now. Thanks for help and input!

 

fun331

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East Coast of Canada

Mar 27, 2019

#11

• Mar 27, 2019

• #11

If it's really cracked it'd hold water there and rust. Any chance spraying that nice bare metal with water would get it to rust in a few days where you live. you could then lightly sand the surface rust away have a line of rust in the crack assuming there is one? Never done it, just a thought.

 

jrichker

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Mar 28, 2019

#12

• Mar 28, 2019

• #12

Cracks -that's what MagnaFlux testing is for...

View: https://www.youtube.com/watch?v=oQK1t8lGEK8

You don't have to take anything apart to check the crack you are looking at...