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Author Topic: Head gasket replacement on an Astra 1.8  (Read 6923 times)

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terry paget

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Head gasket replacement on an Astra 1.8
« on: 13 March 2019, 12:55:41 »

I imagine that changing the head gasket on an Astra 1.8 petrol is similar to the job an Omega 2.2. Am I right?
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Migv6 le Frog Fan

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Re: Head gasket replacement on an Astra 1.8
« Reply #1 on: 13 March 2019, 13:14:15 »

May be a bit more awkward assuming its transverse orientation ? Fundamentally the same though.
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dave the builder

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Re: Head gasket replacement on an Astra 1.8
« Reply #2 on: 13 March 2019, 14:30:33 »

what year / model of astra  :-\
have you confirmed the headgasket has gone for sure ?
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terry paget

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Re: Head gasket replacement on an Astra 1.8
« Reply #3 on: 13 March 2019, 17:22:19 »

what year / model of astra  :-\
have you confirmed the headgasket has gone for sure ?
No. Car is on e-bay in Somerset, decent MOT, good tyres, and cheap so far. I have changed a head gasket on a 2.2, and my Omegas are dying.
https://www.ebay.co.uk/itm/2007-Vauxhall-Astra-1-8-91-000-8-months-MOT-Spares-or-repair/223445598488?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
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dave the builder

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Re: Head gasket replacement on an Astra 1.8
« Reply #4 on: 13 March 2019, 18:08:52 »

pretty much the same process as a 2.2 ,easy enough to do
headgaskets go for a reason though  ::)
if local, worth looking BEFORE you commit ,check the rest of the car over
looks like a dent on the sill  :-\ bash on the front needs more investigation .
good spec being a design edition  :y
obviously will need a full gasket set,head bolts,cambelt kit,waterpump,oil,filters and antifreeze  etc etc (so £250+ in parts to budget for + skim head )
1.8s are not so good on fuel
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terry paget

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Re: Head gasket replacement on an Astra 1.8
« Reply #5 on: 13 March 2019, 19:21:51 »

https://www.ebay.co.uk/itm/Vauxhall-Astra-1-8-SRI-2007/153409917276?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
This one is even nearer, about 8 miles away. Similar car, a 2007 1.8. Less MOT, and a runner. Any coments?
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dave the builder

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Re: Head gasket replacement on an Astra 1.8
« Reply #6 on: 13 March 2019, 19:48:45 »

Again best to go look ,inspect it all , simple stuff like clean antifreeze rather than rusty water  :P check the oil,filler cap,tyres,exhaust,condition of underneath ,do a pedal test and see what stored codes etc (or take a code reader, a genuine seller should not have an issue with that)
MOT history......
Oil leak, but not excessive (8.4.1 (a) (i))

could be anything ,a simple seal to the rear crankshaft mail seal (gearbox out job)

Nearside Front Upper Anti-roll bar ball joint has slight play (5.3.4 (a) (i))
£15 for drop links
Nearside Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
Offside Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

so new discs and pads required ,and points to the "family member mechanic"  doing the bare minimum to get an MOT  :-\

Nearside Rear Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))
Offside Rear Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

from experience, the shocks are probably shot rather than the axle bushings

so again probably going to cost £200+ in parts and it has a short mot

if you like spannering and want something to tinker with ,fair enough

£1000 should see you with an astra with 12 months mot
(not that an mot is any guarantee  of the cars condition ,seen some dogs with 12 months mot  ::))

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dave the builder

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Re: Head gasket replacement on an Astra 1.8
« Reply #7 on: 13 March 2019, 20:57:06 »

£700 buy it now with 12 months mot clicky
mot history has no nasty pointers
about as close to you as the other one  :-\
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henryd

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Re: Head gasket replacement on an Astra 1.8
« Reply #8 on: 13 March 2019, 21:35:05 »

£700 buy it now with 12 months mot clicky
mot history has no nasty pointers
about as close to you as the other one  :-\

That looks ok tbh,a bit of a barter could get that cheaper :y
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terry paget

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Re: Head gasket replacement on an Astra 1.8
« Reply #9 on: 13 March 2019, 21:44:28 »

Again best to go look ,inspect it all , simple stuff like clean antifreeze rather than rusty water  :P check the oil,filler cap,tyres,exhaust,condition of underneath ,do a pedal test and see what stored codes etc (or take a code reader, a genuine seller should not have an issue with that)
MOT history......
Oil leak, but not excessive (8.4.1 (a) (i))

could be anything ,a simple seal to the rear crankshaft mail seal (gearbox out job)

Nearside Front Upper Anti-roll bar ball joint has slight play (5.3.4 (a) (i))
£15 for drop links
Nearside Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
Offside Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

so new discs and pads required ,and points to the "family member mechanic"  doing the bare minimum to get an MOT  :-\

Nearside Rear Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))
Offside Rear Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

from experience, the shocks are probably shot rather than the axle bushings

so again probably going to cost £200+ in parts and it has a short mot

if you like spannering and want something to tinker with ,fair enough

£1000 should see you with an astra with 12 months mot
(not that an mot is any guarantee  of the cars condition ,seen some dogs with 12 months mot  ::))
Thanks, good advice. I did enquire of the vendor, it has not had a cam belt change, which confirms your view of the family mechanic. Having said that, most Omegas I have bought were well beyond thei cam belt mileages. Once cars get out of warranty they only get oil a d filter change and garages call it a full service. As you say, I should visit these cars before bidding for them.
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dave the builder

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Re: Head gasket replacement on an Astra 1.8
« Reply #10 on: 13 March 2019, 21:47:48 »

£495 clicky and a trip to Bournemouth bucket and spade,day at the beach   :P

factor in scrap value @ £150 , so £349 divided by 11 months =£32 a month  ;D
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Re: Head gasket replacement on an Astra 1.8
« Reply #11 on: 13 March 2019, 21:49:08 »

Those have a 100k interval, so belt may not actually be due ::)
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dave the builder

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Re: Head gasket replacement on an Astra 1.8
« Reply #12 on: 13 March 2019, 21:54:32 »

Those have a 100k interval, so belt may not actually be due ::)
also due at 10 years though
just purchased a gates kit including tensioner ,roller and water pump delivered £85

I would not trust being told the belt had been done anyway , many car dealers would get their garage to replace JUST the belt , not pump or rollers

simple job, 2 hours at most ,the skin will grow back on your knuckles  :y
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terry paget

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Re: Head gasket replacement on an Astra 1.8
« Reply #13 on: 14 March 2019, 22:26:15 »

£700 buy it now with 12 months mot clicky
mot history has no nasty pointers
about as close to you as the other one  :-\
Thanks for that, looks attractive. When my second Astra seized during MOT I struggled to find anything cheap and useable. The Frome car ha a short MOT with advisories, while the Wedmore car will be cheap 'cos it needs a head gasket replacing. Most e-bay Astras are from traders and jolly expensive to a man accustomed to buying Omegas under £500. Does the Astra 1.8 use heater bypass valves?
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dave the builder

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Re: Head gasket replacement on an Astra 1.8
« Reply #14 on: 15 March 2019, 00:35:15 »

£700 buy it now with 12 months mot clicky
mot history has no nasty pointers
about as close to you as the other one  :-\
........ Does the Astra 1.8 use heater bypass valves?
i doubt they have HBV, only 1.8 vauxhalls i have had have been vectra and cavalier .i've not had a astra 1.8
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