Rebuild all the salvage Miatas! ASS!
#3049
I take big bites

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Join Date: Sep 2010
Location: Hurricane, UT
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Gents, I haz question.
Getting ready to put my Miata back together this weekend. Got the coolant fitting replaced and got my manifold surfaced.
The mani to head nuts don't really seem to lock anymore. I'm guessing that's from heat fatigue? They seem to tighten down just fine, but I can spin them most of the way on by hand.
If I resbond them can I expect them to stay, or do I need to replace these nuts?
Getting ready to put my Miata back together this weekend. Got the coolant fitting replaced and got my manifold surfaced.
The mani to head nuts don't really seem to lock anymore. I'm guessing that's from heat fatigue? They seem to tighten down just fine, but I can spin them most of the way on by hand.
If I resbond them can I expect them to stay, or do I need to replace these nuts?
#3051

My experience is that, yes, this happens with the manifold-to-head nuts pretty much any time you've had them good and hot from track use and I generally plan on replacing most of them if I'm going to have the manifold off. That said, if it's the last thing stopping you from driving the car, go ahead and put it together with the old ones, drive the car, order new ones, and replace them when they arrive. It's not going to fall off in a couple weeks of driving.
I wouldn't bother with resbond on these.
--Ian
I wouldn't bother with resbond on these.
--Ian
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