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Bolts Loosening up?

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Old 05-09-2012, 08:34 PM
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Default Bolts Loosening up?

Today the wastegate bolts were totally loose, the downpipe bolts were loose, The turbo to manifold bolts are loose! ( I think only one) and it looks like it ripped apart the gasket on the side it became loose, and where the exhaust leak is.

Pretty much, what the hell do I do to keep these bolts in? I can use loctite on the wastegate, and the downpipe to turbo, but I don't want to use it on the bolts for the turbo to manifold, because I know I'll have to remove the turbo/downpipe to remove my oil pan for example (its impossible to install the DP when the turbo is mounted already.) Also, I think it says loctite is only good for 300 degree F, which I don't think is suitable for the wastegate, and downpipe to turbo. Thoughts?!

http://www.youtube.com/watch?v=J1kJHkQrrnM

just a lil 3rd gear pull. Currently on 7psi. I have a 10lb spring, but the tuner recommended not to run 10lbs without arp head studs, so I followed suit. I have arp head bolts that I am going to install this weekend. What should I do while the head is off? Can I do anything that will benefit me without ripping the block apart? I will be using an OEM head gasket.
Old 05-09-2012, 09:12 PM
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Default Re: Bolts Loosening up?

I use copper anti-seize to get the bolts extra tight and to ensure they come out smoothly. Haven't had any problems yet.
Old 05-09-2012, 10:15 PM
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Default Re: Bolts Loosening up?

On the old two bolt Wastegates, we used either safety wire, or tack-welded them on there. that's why i'm glad the MVS took over, and why I don't recommend cast manifolds that still use that 2 bolt setup
Old 05-10-2012, 03:39 AM
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Default Re: Bolts Loosening up?

I have the 38mm 2 bolt style.. I used the black coated allen bolts with lock washers. works fine for me..

As far as the manifold.. I also had issues with my 1st cast mani bolts backing out. You can either use studs or use large allen head bolts with lock washers. I didnt use the cheap hardware that came with it.

Bottom line is replace it all with quality bolts and lock washers.
Old 05-10-2012, 04:26 AM
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Default Re: Bolts Loosening up?

Home hardware nut bolt an washer here with blue thread lock tightened up realllll tight. You could double nut the ends and see if that helps
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