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Pin vs Weld? Now I know why most pin

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Old 01-28-2018, 04:29 PM
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powdrhound
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This is what my friend's coolant pipes looked like when he had his engine dropped last week to get them welded. Car is an 05GT3 with 20K miles on it. Two of the pipes were hanging on by a thread...


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Old 01-28-2018, 04:56 PM
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Gofishracing
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yep- They all will fail. Unbelievable but true. Each time I see one I get pissed.
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Old 01-29-2018, 02:42 AM
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mooty
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Originally Posted by powdrhound
This is what my friend's coolant pipes looked like when he had his engine dropped last week to get them welded. Car is an 05GT3 with 20K miles on it. Two of the pipes were hanging on by a thread...



THEY WILL FAIL
100%
u can wait and hit a wall, it will cost you a lot more money.
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Old 01-29-2018, 02:53 PM
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cgfen
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Upon inspection, all 8 of mine seemed to be solidly glued in place.
I still removed, cleaned, epoxied (JB Weld) and "pinned" them in place.
Note the not-so-great original adhesive coverage.

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Old 02-01-2018, 09:41 AM
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177mph
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Excellence magazine just had an article on gt3 coolant tubes and recommended welding over pinning.
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Old 02-01-2018, 10:25 AM
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Mike Billings
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I'm continually impressed how JB-Weld holds up in engines. We'll see in 20 years!

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Old 02-01-2018, 08:52 PM
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colin1976
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Knurled OEM + JB-Weld is the method I went with.
It was recommended to me by one of the respected shops here in the UK (JZM).
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Old 02-02-2018, 09:21 AM
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Marv
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Originally Posted by colin1976
Knurled OEM + JB-Weld is the method I went with.
It was recommended to me by one of the respected shops here in the UK (JZM).
Clever solution.
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Old 02-11-2018, 09:30 PM
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Serge944
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Originally Posted by 177mph
Excellence magazine just had an article on gt3 coolant tubes and recommended welding over pinning.
That's my opinion as well - it's what I did when I built my 996 4.0. It's the only "lifetime" solution if done right.

That said, doing anything is better than nothing.
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