Crack fixable? Hairline crack between coolant passages
#1
Crack fixable? Hairline crack between coolant passages
I pulled this gsr head from a swap I purchased and noticed that is a hairline crack between two coolant passages. It was assembled by a shop so I’m surprised (kinda) that they didn’t tell the guy his head was cracked. Long story short is the head repairable or do I really need to worry about it. I was thinking the repair would be easy to drop a few beads across the crack then get the head milled. I don’t think the hairline crack would really matter and unless you overheat the head it shouldn’t get worse but that’s a complete guess. I never ran a head with a hairline crack like that. Curious to see if anyone ever ran a head with a small crack like this. Thanks for any suggestions or advice.
#3
Re: Crack fixable? Hairline crack between coolant passages
I don't see why you couldn't. I have seen way worse damage repaired. Groove out the crack, weld it up, scratch it off. Just do a thorough check of the rest of the head before you put it into service. There may be other issues that the heat that cracked it caused.
#4
Honda-Tech Member
#5
Re: Crack fixable? Hairline crack between coolant passages
What difference would the depth make? Even if it goes all the way through into the water jackets, so what? Prep it and weld it out.
#6
Re: Crack fixable? Hairline crack between coolant passages
guys have fixed heads from over porting as well just make sure whoever is welding it isnt a hack
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