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d12 exhaust manifold mounting bolts
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Travo View Drop Down
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Joined: 03 May 2015
Location: IOWA
Points: 22 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Travo Quote  Post ReplyReply Direct Link To This Post Topic: d12 exhaust manifold mounting bolts
    Posted: 22 Feb 2016 at 11:10am
Are the two inside bolts for the exhaust manifold, on a D12 wet bolts? If so, is there any suggested method of sealing the threads?

I recently had the head rebuilt. After putting everything back together and putting coolant in, I noticed that there is coolant leaking from the bolt holes (while bolt is in hole). If I take a bolt out, fluid gushes out. I assume that they pass through the jacket.. Can anyone confirm this.

Thanks,
Travis
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Tracy Martin TN View Drop Down
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Joined: 11 Sep 2009
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Points: 10723 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 22 Feb 2016 at 11:13am
That is common with them. Use a good non hardening sealer like Permatex brand. Tighten the stud down before installing manifold, you won't have any proiblems. HTH Tracy
No greater gift than healthy grandkids!
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CTuckerNWIL View Drop Down
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Points: 22824 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CTuckerNWIL Quote  Post ReplyReply Direct Link To This Post Posted: 22 Feb 2016 at 12:01pm
There shouldn't be any "bolts" there. Use a stud and do like Tracy said, bottom the studs out in the threads but don't torque them in place, just snug them in the bottom and then torque the nut.
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Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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