Thermostat Housing help 2.0l help needed - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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Karnage Corsa

Member

Registered: 4th Nov 02
Location: Norton, Stockton-on-Tees
User status: Offline

21st Nov 04 at 13:20

Right here goes this mornign I fitted a thermostat to the engine upon refitting everythibng and flushing the system I started the engine and the housing was leaking so I tightened it up and on of the 10mm bolts has snapped inside the housing what the hell do I do ?

Am I going to have to drill and retap or is it possible that the housing can just be replaced ? I see it connects to the block with a lager bolt does this mean a new thermostat housing can be purchased hopefully that can be done can anyone give me any ideas of what to do please I am desperate, Regards Paul...

[Edited on 21-11-2004 by Karnage Corsa]

myke

Member

Registered: 7th Feb 01
Location: High Wycombe, Buckinghamshire
User status: Offline

21st Nov 04 at 14:37

the o-ring probably wasn't seated properly. you should have taken it off and tried again rather than tightening it up more.

you could probably re-tap it a size up, or buy a new housing, whichever is easiest for you.

Karnage Corsa

Member

Registered: 4th Nov 02
Location: Norton, Stockton-on-Tees
User status: Offline

21st Nov 04 at 14:38

goint to get a new housing mate thanks a lot but these are dealer only so I am knackered now for a few days

Dan

Premium Member

Registered: 22nd Apr 02
Location: Gorleston on Sea, Norfolk
User status: Offline

21st Nov 04 at 14:53

rather then tapping it out, y dont ya just get the broken piece out?? not that hard really

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Karnage Corsa

Member

Registered: 4th Nov 02
Location: Norton, Stockton-on-Tees
User status: Offline

21st Nov 04 at 14:55

like how

Darren

Member

Registered: 21st Apr 02
Location: Hadleigh, Suffolk
User status: Offline

21st Nov 04 at 14:59

drill it

Karnage Corsa

Member

Registered: 4th Nov 02
Location: Norton, Stockton-on-Tees
User status: Offline

21st Nov 04 at 15:00

but that surely will knacker the thread with it only being 10mm its going to be really tight

ste_nova

Member

Registered: 8th Jan 01
Location: St. Asaph, N. Wales
User status: Offline

21st Nov 04 at 16:22

remove the housing.... twist out the snapped bit... won't be tight as it's not holding anything

TOMAS

Member

Registered: 7th Aug 02
Location: Nottinghamshire
User status: Offline

21st Nov 04 at 16:59

Is there any of the thread protruding? If its tight and wont budge by hand or pliers then if you can get a hacksaw and cut a slot into the tread. Then use a flatblade driver to unscrew the remaining threaded section of bolt...

Adam-D

Member

Registered: 11th May 02
Location: Cheshire
User status: Offline

21st Nov 04 at 17:21

get a screw remover about £8 for a set from halfords yuo drill a hole into the broken bolt and then tap the right size screw remover into it and undo it with a spanner

something like this
screw extractor set

Joff

Member

Registered: 17th Oct 00
Location: Cambridgeshire
User status: Offline

21st Nov 04 at 18:01

quote:
Originally posted by Adam-D
get a screw remover about £8 for a set from halfords yuo drill a hole into the broken bolt and then tap the right size screw remover into it and undo it with a spanner

something like this
screw extractor set

Oooh the holy grail for bodged DIY maintenance

I think I'll get me a set

myke

Member

Registered: 7th Feb 01
Location: High Wycombe, Buckinghamshire
User status: Offline

21st Nov 04 at 18:22

a.k.a stud extractors or easy outs.

i got a set for a quid from ebay.

Karnage Corsa

Member

Registered: 4th Nov 02
Location: Norton, Stockton-on-Tees
User status: Offline

21st Nov 04 at 18:24

quote:
Originally posted by Adam-D
get a screw remover about £8 for a set from halfords yuo drill a hole into the broken bolt and then tap the right size screw remover into it and undo it with a spanner

something like this
screw extractor set

thats a damn good idea I will go there tomorrow see what I can sort out

ste_nova

Member

Registered: 8th Jan 01
Location: St. Asaph, N. Wales
User status: Offline

21st Nov 04 at 18:25

single use ones

Adam-D

Member

Registered: 11th May 02
Location: Cheshire
User status: Offline

21st Nov 04 at 21:20

i got a set of lazer ones when a seat bolt sheard coz of the damm locknut

i wanst taking anychances either i drilled the hole progressivly bigger till i got the right size then heated the whole lot up with a blow torch tapped it in and turned it came out dead easy

Karnage Corsa

Member

Registered: 4th Nov 02
Location: Norton, Stockton-on-Tees
User status: Offline

21st Nov 04 at 22:04

how exactly do these work chaps ? I get the theory of drillign it and retapping it to make a new thread but surely if drilled then a thread made out of the one thats stuck when turned in the opposite way wont it just comeout of the thread I dont exactly get it if this works it will save me a hell of a lot of work cant use the car till its fixed as its p!ssing water out cheers chaps

Adam-D

Member

Registered: 11th May 02
Location: Cheshire
User status: Offline

21st Nov 04 at 22:07

you drill a hole into the broken thread/nut
tap this baby into the hole and undo
it will undo the broken bolt and leave it ready for a new one

Karnage Corsa

Member

Registered: 4th Nov 02
Location: Norton, Stockton-on-Tees
User status: Offline

21st Nov 04 at 22:10

thats all I needed to know how much are these again ? hopefully I can have my baby back for tuesday wednesday latest dont finish work till 5 and its pitch black by then

myke

Member

Registered: 7th Feb 01
Location: High Wycombe, Buckinghamshire
User status: Offline

21st Nov 04 at 22:38

they're reverse thread and tapered, so as you tighten them in (counterclockwise) they get wedged and start to undo the broken bolt/stud thats stuck.

you'll probably need a tap holder to get it in straight, and may be an idea to take the housing off the car so you don't drop swarf into it.

AdamF

Premium Member

Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline

22nd Nov 04 at 08:02

its not as easy as its sounds mate. youll more than likely crack the housing. a new housing is 37 quid + vat from vaux

Karnage Corsa

Member

Registered: 4th Nov 02
Location: Norton, Stockton-on-Tees
User status: Offline

22nd Nov 04 at 17:05

I decided this mornign afetr consulting with my gaffer its too much of a mess on as the hole is tiny if it were bigger it may ebe fesable but not to worry I ahve ordered the new housing which wil hopefully be here on wednesday and fitted the same day with any luck thanks to everyone that helped me out its hugely appreciated, Regards Paul...

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