exhaust manifold studs.

467 Views 8 Replies 6 Participants Last post by rebel_eye, Feb 20, 2002

rebel_eye

Discussion Starter · Feb 13, 2002

I wastakign apart my exhaust mani and downpipe
and some of the nuts were 16 and some were 17 mm ! WTF ?
However I want to replace the studs since they are so rotted!
Any one have any tips ?

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tkic

· #2 · Feb 13, 2002

Re: exhaust manifold studs. (rebel_eye)

no tips, really, but thank your lucky stars that they did'nt break off in the head. i seem to lose a stud every time.

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Re: exhaust manifold studs. (EbraketurnGTI)

Soak 'em in penetrating oil, and then heat 'em up and then use a stud extractor tool to take them out.
No fun when one breaks and you have to drill the EZ out the drill out the briken EZout and............... http://****************.com/smile/emthdown.gif
And neverseize the new ones on instalation and cleanout the thread holes if they a pooped

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Dieder

· #4 · Feb 14, 2002

Re: exhaust manifold studs. (rebel_eye)

would there be advantage to upgrading to stainless steel studs? How do they handle heat?

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B3VR6

· #5 · Feb 14, 2002

Re: exhaust manifold studs. (Dieder)

Stainless is usually worse at handling vibration stresses, heat and is brittle. Not the best solution. If you think about it, those original studs probably have 15+ years on them. Simply replacing with new ones gives you another 15+ years.

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rebel_eye

Discussion Starter · #6 · Feb 15, 2002

Re: exhaust manifold studs. (B3VR6)

agreed !
I have 1 stud out
using penetrating oil and vice grips ..
ouch !

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lugnut111

· #7 · Feb 15, 2002

Re: exhaust manifold studs. (rebel_eye)

quote:[HR][/HR]agreed !
I have 1 stud out
using penetrating oil and vice grips ..
ouch ![HR][/HR]

Have you tried double nutting them? Put two nuts on the stud (that may be the dirtiest thing I have ever written) Then tighten them against each other. Use a wrench on the first nut you put on and turn it. (righty tighty, lefty loosey) The pressure of the first nut against the second will allow you to thread the stud out of the block. http://****************.com/smile/emthup.gif

[Modified by lugnut111, 9:43 PM 2-14-2002]

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