corsasport.co.uk
 

Corsa Sport » Message Board » General Chat » tightening up head bolts


New Topic

New Poll
  Subscribe | Add to Favourites

You are not logged in and may not post or reply to messages. Please log in or create a new account or mail us about fixing an existing one - register@corsasport.co.uk

There are also many more features available when you are logged in such as private messages, buddy list, location services, post search and more.


Author tightening up head bolts
chris_uk
Premium Member

Avatar

Registered: 8th Jul 03
User status: Offline
7th Dec 10 at 20:18   View Garage View User's Profile U2U Member Reply With Quote

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
ed
Member

Registered: 10th Sep 03
User status: Offline
7th Dec 10 at 20:19   View User's Profile U2U Member Reply With Quote

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...
Jon_C
Premium Member

Avatar

Registered: 7th Dec 05
Location: Suffolk
User status: Offline
7th Dec 10 at 20:21   View Garage View User's Profile U2U Member Reply With Quote

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
chris_uk
Premium Member

Avatar

Registered: 8th Jul 03
User status: Offline
7th Dec 10 at 20:23   View Garage View User's Profile U2U Member Reply With Quote

that how i thought it would be, cheers, i will instruct him to buy an angle gauge tomorrow.

ta.
ed
Member

Registered: 10th Sep 03
User status: Offline
7th Dec 10 at 20:24   View User's Profile U2U Member Reply With Quote

You can do it by eye. But buy a guage... They're about £10, if that.
Ian
Site Administrator

Avatar

Registered: 28th Aug 99
Location: Liverpool
User status: Online
8th Dec 10 at 00:07   View Garage View User's Profile U2U Member Reply With Quote

An angle guage?

Just start with the ratchet handle vertical and stop when it's quarter of a turn?
alan-g-w
Member

Registered: 9th Nov 07
Location: Glasgow
User status: Offline
8th Dec 10 at 05:56   View User's Profile U2U Member Reply With Quote

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.
LeeM
Member

Registered: 26th Sep 05
Location: Liverpool
User status: Offline
8th Dec 10 at 08:05   View User's Profile U2U Member Reply With Quote

Some torque wrenches have angles on the back. For 90 and 45 it's not really needed tho
A>J
Member

Registered: 2nd Dec 13
User status: Offline
6th Dec 13 at 09:27   View User's Profile U2U Member Reply With Quote

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
FlaFFy_91
Premium Member

Avatar

Registered: 30th Sep 08
Location: Formby, Merseyside
User status: Offline
6th Dec 13 at 13:30   View Garage View User's Profile U2U Member Reply With Quote

only just spotted the date of the origional.... replied in you thread mate

[Edited on 06-12-2013 by FlaFFy_91]
FlaFFy_91
Premium Member

Avatar

Registered: 30th Sep 08
Location: Formby, Merseyside
User status: Offline
6th Dec 13 at 13:30   View Garage View User's Profile U2U Member Reply With Quote

10, 6, 2, 3, 7,
9, 5, 1, 4, 8,
Front


Thats the bolt pattern
alan-g-w
Member

Registered: 9th Nov 07
Location: Glasgow
User status: Offline
6th Dec 13 at 14:59   View User's Profile U2U Member Reply With Quote

Personally I'd swap 4+5
SVM 286
Member

Registered: 13th Feb 05
Location: pain
User status: Offline
6th Dec 13 at 17:19   View User's Profile U2U Member Reply With Quote

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
Robin
Premium Member

Avatar

Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
6th Dec 13 at 17:35   View Garage View User's Profile U2U Member Reply With Quote

Angle gauge? It's not 22.647 degrees, it's 90
FlaFFy_91
Premium Member

Avatar

Registered: 30th Sep 08
Location: Formby, Merseyside
User status: Offline
6th Dec 13 at 21:36   View Garage View User's Profile U2U Member Reply With Quote

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.
alan-g-w
Member

Registered: 9th Nov 07
Location: Glasgow
User status: Offline
7th Dec 13 at 17:13   View User's Profile U2U Member Reply With Quote

It wouldn't make a slight bit of difference but from years of torquing shit up it'd make more sense to me.
Jed D
Member

Registered: 15th Mar 11
Location: Durham
User status: Offline
7th Dec 13 at 17:20   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Ian

Just start with the ratchet handle vertical and stop when it's quarter of a turn?


i do this ^

 
New Topic

New Poll

Corsa Sport » Message Board » General Chat » tightening up head bolts 23 database queries in 0.0112329 seconds