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Author Topic: At which point did the manifold stud break?  (Read 2227 times)

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JamesV6CDX

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At which point did the manifold stud break?
« on: 11 June 2009, 15:38:57 »
Just for a test - using a scrap V6 head, and a damaged exhaust manifold - I thought I'd have a laugh and see how tight I can do up a stud before it breaks.

How far do you reckon I got?  ::)
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Entwood

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Re: At which point did the manifold stud break?
« Reply #1 on: 11 June 2009, 15:47:36 »
We need to know how many weetabix you had for breakfast first ......


 ;D ;D ;D ;D ;D ;D
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JamesV6CDX

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Re: At which point did the manifold stud break?
« Reply #2 on: 11 June 2009, 16:01:07 »
Quote
We need to know how many weetabix you had for breakfast first ......


 ;D ;D ;D ;D ;D ;D

2 bits of toast and Jam Nige  ;D ;D

I was using a halfrauds torquewrench....  :y
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feeutfo

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Re: At which point did the manifold stud break?
« Reply #3 on: 11 June 2009, 16:07:56 »
voted 55 but probably more....maybe.
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Lazydocker

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Re: At which point did the manifold stud break?
« Reply #4 on: 12 June 2009, 08:35:29 »
I voted for 60 but I reckon the thread in the head stripped before the stud broke :y :y
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Omega man 2

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Re: At which point did the manifold stud break?
« Reply #5 on: 12 June 2009, 08:37:32 »
I've broken one before so I'd say not alot ::)
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Ken T

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Re: At which point did the manifold stud break?
« Reply #6 on: 12 June 2009, 13:08:10 »
When I was changing my exhaust, both bolts sheared with little force. What's 15ft-lbs in funny units ?.

ken
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shammster

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Re: At which point did the manifold stud break?
« Reply #7 on: 12 June 2009, 13:11:22 »

When do you put us out of our misery ?
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Marks DTM Calib

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Re: At which point did the manifold stud break?
« Reply #8 on: 12 June 2009, 13:22:45 »
Not sure how relevant this is in real terms....


The stud should be very strong if tis already fitted to a head adn teh nut is being wound on.

If (as is often the case), the stud still has the nut on it and is then wound into the head, the moment of force on the head wont need to be much more than the torque value to pull the threads from the casting (the stud wont snap though).

So, not enough detail to answer!
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JamesV6CDX

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Re: At which point did the manifold stud break?
« Reply #9 on: 12 June 2009, 22:43:24 »
Snapped on 55nm..... I think it was probably a bit brittle though...  :y
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ScottieMV6

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Re: At which point did the manifold stud break?
« Reply #10 on: 13 June 2009, 14:56:25 »
Wow I guessed right!!

What do I win???  ;D ;D
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Del Boy

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Re: At which point did the manifold stud break?
« Reply #11 on: 13 June 2009, 15:09:58 »
Only 10 out  ;D
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