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AD3 152 injector hold down studs?

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09-13-2017 01:57:31

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I have another thread going on tractor talk asking about this but I wanted to check here as well. Does anyone know if the holes in the head for the injector studs are supposed to be blind or are they open to coolant? I ask as I have coolant appearing to leak out from the lower stud on the front injector. The studs were very recently out. Thanks, Sam

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09-13-2017 05:46:15

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 Re: AD3 152 injector hold down studs? in reply to tractorsam, 09-13-2017 01:57:31  
Don't recall on that engine, but some other Perkins I've worked on did have stud holes open to the water jacket, stud sealer would then be needed. The A4.300 in my S90 has exhaust studs into the water too.

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09-13-2017 06:34:32

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 Re: AD3 152 injector hold down studs? in reply to Dieseltech, 09-13-2017 05:46:15  
Thank you. I just don't want to put sealer on it if the head might be cracked or have other issues. I did just have the studs out. Sam

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