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Author HELP
stu_c
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Registered: 11th Dec 07
Location: Westleigh, Greater Manchester
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22nd Sep 09 at 20:15   View User's Profile U2U Member Reply With Quote
just changed the manifold gasket on my vectra only to find that 3 of the threads have come out of the head

now i cant get the manifold bolts back in cos theres no thread

anyone know wat i can do?
Jon_C
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Registered: 7th Dec 05
Location: Suffolk
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22nd Sep 09 at 20:16   View Garage View User's Profile U2U Member Reply With Quote
Helicoil?
stu_c
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Registered: 11th Dec 07
Location: Westleigh, Greater Manchester
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22nd Sep 09 at 20:16   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Jon_C
Helicoil?


GregGsi
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Registered: 6th Jan 08
Location: Leigh, Wigan
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22nd Sep 09 at 20:17   View Garage View User's Profile U2U Member Reply With Quote
i tryd ringing you back


BHP vaux
GregGsi
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Registered: 6th Jan 08
Location: Leigh, Wigan
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22nd Sep 09 at 20:18   View Garage View User's Profile U2U Member Reply With Quote
new head time

BHP vaux
dan-sport
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Registered: 9th Oct 07
Location: Bushbury, West Midlands
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22nd Sep 09 at 20:25   View User's Profile U2U Member Reply With Quote
threads? you mean studs?
stu_c
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Registered: 11th Dec 07
Location: Westleigh, Greater Manchester
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22nd Sep 09 at 20:27   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by dan-sport
threads? you mean studs?


threads inside the head
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
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22nd Sep 09 at 20:28   View User's Profile U2U Member Reply With Quote
If steel threaded inserts have come of the head. Use a helicoil. Google it, but basically drill a slghtly bigger hole tap a new bigger thread in and put a new threaded insert in with the outer dia ofthe tapped hole and the inner of the original insert
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
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22nd Sep 09 at 20:30   View User's Profile U2U Member Reply With Quote
Excuse spelling on iPhone
Jon_C
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Registered: 7th Dec 05
Location: Suffolk
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22nd Sep 09 at 20:32   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Sean-B
If steel threaded inserts have come of the head. Use a helicoil. Google it, but basically drill a slghtly bigger hole tap a new bigger thread in and put a new threaded insert in with the outer dia ofthe tapped hole and the inner of the original insert


What he said
stu_c
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Location: Westleigh, Greater Manchester
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22nd Sep 09 at 20:35   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Jon_C
quote:
Originally posted by Sean-B
If steel threaded inserts have come of the head. Use a helicoil. Google it, but basically drill a slghtly bigger hole tap a new bigger thread in and put a new threaded insert in with the outer dia ofthe tapped hole and the inner of the original insert


What he said


so head off time then
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
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22nd Sep 09 at 20:40   View User's Profile U2U Member Reply With Quote
No. Do it in situ? Although don't know how much room there is in a vec

could do it in situ on a corsa though
Ben-B
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Registered: 28th Jul 08
Location: the lovely Nottingham
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22nd Sep 09 at 20:43   View User's Profile U2U Member Reply With Quote
were the bolts mega tight to undo when taking the manifold off? dont usually see 3 coming out.
stu_c
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Registered: 11th Dec 07
Location: Westleigh, Greater Manchester
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22nd Sep 09 at 20:49   View User's Profile U2U Member Reply With Quote
not really tight butthey wernt thge original studs but anything with a thread it seems

think stevie woner may have put it back on
Jon_C
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22nd Sep 09 at 20:53   View Garage View User's Profile U2U Member Reply With Quote
Can't do it with the head on the car. Openin up holes means drilling meaning swarth fallin inside the engine.
Terry12
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Registered: 24th Sep 07
Location: Manchester
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22nd Sep 09 at 20:53   View User's Profile U2U Member Reply With Quote
What size are the studs M8?
I have an M6 helicoil set here bud if it's right size.
Not too hard to do either.
Terry12
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Registered: 24th Sep 07
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22nd Sep 09 at 20:54   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Jon_C
Can't do it with the head on the car. Openin up holes means drilling meaning swarth fallin inside the engine.


Why not? just cover up the exhaust ports well.
stu_c
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Registered: 11th Dec 07
Location: Westleigh, Greater Manchester
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22nd Sep 09 at 20:58   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Terry12
What size are the studs M8?
I have an M6 helicoil set here bud if it's right size.
Not too hard to do either.


not got a clue what size they are terry
they are just normal manifold studs
alan-g-w
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Registered: 9th Nov 07
Location: Glasgow
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22nd Sep 09 at 21:00   View User's Profile U2U Member Reply With Quote
M8's.

Is there room for a helicoil? ie is there enough metal around the fucked holes for a bigger hole?

[Edited on 22-09-2009 by alan-g-w]
Terry12
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Registered: 24th Sep 07
Location: Manchester
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22nd Sep 09 at 21:01   View User's Profile U2U Member Reply With Quote
Think they'll be M8 mate.
Helicoil kits are about £15-25 and fairly simple to do.

With the manifold off is there enough room to fit a drill in between the slam panel and head? Might be worth removing the rad for access.
Terry12
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Registered: 24th Sep 07
Location: Manchester
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22nd Sep 09 at 21:02   View User's Profile U2U Member Reply With Quote
http://cgi.ebay.co.uk/Helicoil-Thread-Repair-Kit-Set-Inserts-M8-x-1-25mm_W0QQitemZ140311976178QQcmdZViewItemQQptZUK_Home_Garden_PowerTools_SM?hash=item20ab3ed8f2&_trksid=p3286.c0.m14
alan-g-w
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Location: Glasgow
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22nd Sep 09 at 21:03   View User's Profile U2U Member Reply With Quote
Or you could just bodge it and weld the studs in the head...
DizzyRebel
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Registered: 2nd Jan 09
Location: Lincoln
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22nd Sep 09 at 21:04   View User's Profile U2U Member Reply With Quote
Cant you just tap it out to 8mm then use 8mm studs? Helicoils are shit, they always break. Wurth do some good things called time serts which do the job of a helicol without the faffing about.
Terry12
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22nd Sep 09 at 21:05   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by alan-g-w
Or you could just bodge it and weld the studs in the head...


How exactly would you weld steel to an aluminum head
Terry12
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Registered: 24th Sep 07
Location: Manchester
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22nd Sep 09 at 21:05   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by DizzyRebel
Cant you just tap it out to 8mm then use 8mm studs? Helicoils are shit, they always break. Wurth do some good things called time serts which do the job of a helicol without the faffing about.


Studs are already M8

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