Trying to tighten up the rocker assembly nuts on my new head the studs just spin freely! Any way of fixing this/preventing it?
Bloody Head Studs!
Started by
not so mini dan
, Sep 19 2007 06:42 PM
13 replies to this topic
#1
not so mini dan
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Posted 19 September 2007 - 06:42 PM
#2
Jammy
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Posted 19 September 2007 - 06:57 PM
Sounds like the thread has stripped, in which case you'll need to take the head off and have helicoils inserted. Either that or you have the wrong thread on the stud or in the head.
#3
not so mini dan
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Posted 19 September 2007 - 07:39 PM
Arses, can i insert the helicoils myself or would it be best to get a proffessional to do it?
#4
Big_Adam
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Posted 19 September 2007 - 07:48 PM
Yeah, you can get a helicoil kits. Simpler just to get a machinist to do it.
#5
not so mini dan
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Posted 19 September 2007 - 08:42 PM
But that involves removing the engine, no?
#6
Jammy
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Posted 19 September 2007 - 08:53 PM
No, it would involve removing the head. You could do it yourself, but if you don't get it in straight then you *could* end up causing yourself much more of a problem.
#7
Ethel
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Posted 19 September 2007 - 08:58 PM
If your lucky it's the nut or stud you've stripped not the head.
#8
not so mini dan
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Posted 19 September 2007 - 09:05 PM
Most likely the stud then as they're brand new nuts (granted that doesn't mean they can't be stripped)
#9
Ethel
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Posted 19 September 2007 - 09:08 PM
I think nuts are designed to strip in preference to the stud.
They were defo the right thread 'n grade?
They were defo the right thread 'n grade?
#10
not so mini dan
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Posted 19 September 2007 - 09:18 PM
As sure as i can be, went to Somerford and they sorted me out, they possibly could have made a mistake but i doubt it.
#11
Dan
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Posted 19 September 2007 - 09:20 PM
The studs and nuts are steel. The head is maleable cast iron. The iron will break first before the stud but it could be the nut, there's less thread there.
Do you meant the rocker pedestal only studs or the rear row of head studs?
Do you meant the rocker pedestal only studs or the rear row of head studs?
#12
not so mini dan
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Posted 19 September 2007 - 09:29 PM
Just the rocker pedestal, should have specified that from the start.
#13
Sprocket
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Posted 19 September 2007 - 10:55 PM
I had this happen to me a few years back and luckily it was the staud that needed replacing. Hope you have the same luck
#14
minijazz
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Posted 20 September 2007 - 07:10 PM
Hi
I managed to helicoil my 998 without too much problems apart from cacking myself with nerves.
I have a suitable drill and some helicoils if you want them- pay only for the cost of the coils and postage & return postage. Set is pricey ..about £ 40 so you save a load of dosh.
i used two spirit levels to get the drilling done , although you could hand drill easily.
let me know
col
I managed to helicoil my 998 without too much problems apart from cacking myself with nerves.
I have a suitable drill and some helicoils if you want them- pay only for the cost of the coils and postage & return postage. Set is pricey ..about £ 40 so you save a load of dosh.
i used two spirit levels to get the drilling done , although you could hand drill easily.
let me know
col
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