chris_uk
Premium Member
Registered: 8th Jul 03
User status: Offline
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putting a new head on a 1.6 astra and i was wondering exactly how much i need to tighten them, ive looking in the TIS manual and it says;
Renew bolts: Yes
Tighten: 25 Nm
- Tighten: 90°
- Tighten: 90°
- Tighten: 90°
- Tighten: 45°
how do i tighten them up?
ta
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ed
Member
Registered: 10th Sep 03
User status: Offline
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Torque wrench to 25Nm
Then angle tighten them to the angles using an angle gauge. Make sure you do them in the correct pattern too...
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Jon_C
Premium Member
Registered: 7th Dec 05
Location: Suffolk
User status: Offline
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Tighten bolts to 25Nm and then in series turn them 90 degrees and then go back to start for another 90 and repeat and then a final quarter turn of 45 degrees.
I think thats how it works
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chris_uk
Premium Member
Registered: 8th Jul 03
User status: Offline
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that how i thought it would be, cheers, i will instruct him to buy an angle gauge tomorrow.
ta.
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ed
Member
Registered: 10th Sep 03
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You can do it by eye. But buy a guage... They're about £10, if that.
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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An angle guage?
Just start with the ratchet handle vertical and stop when it's quarter of a turn?
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alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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Do you get the full turns the Haynes says with the 1.6s? I know that the when I was doing the XE's head I was scared to do the last angle stage for fear of the bolts going.
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LeeM
Member
Registered: 26th Sep 05
Location: Liverpool
User status: Offline
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Some torque wrenches have angles on the back. For 90 and 45 it's not really needed tho
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A>J
Member
Registered: 2nd Dec 13
User status: Offline
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hey dose any body know the Torque specs for a Crosa gsi 1.6 2001 model Head Bolts and paren to flow when i do it
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FlaFFy_91
Premium Member
Registered: 30th Sep 08
Location: Formby, Merseyside
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only just spotted the date of the origional.... replied in you thread mate
[Edited on 06-12-2013 by FlaFFy_91]
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FlaFFy_91
Premium Member
Registered: 30th Sep 08
Location: Formby, Merseyside
User status: Offline
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10, 6, 2, 3, 7,
9, 5, 1, 4, 8,
Front
Thats the bolt pattern
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alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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Personally I'd swap 4+5
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SVM 286
Member
Registered: 13th Feb 05
Location: pain
User status: Offline
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quote:
Originally posted by chris_uk
putting a new head on a 1.6 astra and i was wondering exactly how much i need to tighten them, ive looking in the TIS manual and it says;
Renew bolts: Yes
Tighten: 25 Nm
- Tighten: 90°
- Tighten: 90°
- Tighten: 90°
- Tighten: 45°
how do i tighten them up?
ta
Clockwise Chris
 X
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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Angle gauge? It's not 22.647 degrees, it's 90 
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FlaFFy_91
Premium Member
Registered: 30th Sep 08
Location: Formby, Merseyside
User status: Offline
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quote:
Originally posted by alan-g-w
Personally I'd swap 4+5
Why?
That's how vauxhall tell you to do it. So I'm sure that would be the best way.
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alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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It wouldn't make a slight bit of difference but from years of torquing shit up it'd make more sense to me.
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Jed D
Member
Registered: 15th Mar 11
Location: Durham
User status: Offline
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quote:
Originally posted by Ian
Just start with the ratchet handle vertical and stop when it's quarter of a turn?
i do this ^
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