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850 T5 94my Turbo Head bolt torque

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.
1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
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1997 - 2004 C70

850 T5 94my Turbo Head bolt torque

Postby carp-guru » 13 Dec 2008, 23:38

Can anybody advise me on the Head gasket bolt torque please?
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Re: 850 T5 94my Turbo Head bolt torque

Postby Ozark Lee » 14 Dec 2008, 02:01

It is a three stage torque sequence.

Stage 1 - 15 lb/ft - follow the pattern.
Stage 2 - 37 lb/ft - follow the pattern.
Stage 3 - an additional 130° - follow the pattern.

The upper half of the cam tower is 12 lb/ft.

...Lee
'94 850 N/A
'96 850 N/A
'96 Platinum Edition Turbo
'98 S70 T5
'99 V70XC - RIP Killed by a drunk driver.
Previous: 1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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Re: 850 T5 94my Turbo Head bolt torque

Postby MadeInJapan » 14 Dec 2008, 02:04

Note that the first section below is for the head gasket (lower section). There is also the upper half section that fits over the cylinder head. I assume that you have gotten one or the other off and need help putting things back?

The bolts can be used once after the R&R of the head but that's it...if you have to take it apart again, you'll need to use new bolts (they stretch after awhile). After lubricating them, torque then in 3 stages starting from center and working outward- first, all at 14.75 ft lbs, second, at 44.25 ft lbs, then finally, 130 degrees more. Volvo has a special protractor that is used, but you can make your own with a piece of cardboard with center cut out for the socket. I hope this helps. Btw, if you haven't taken the bolts out yet, you're suppose to loosen them in sequence too...this time starting from the outside working in.

Now, if you're talking about the upper 1/2 portion of the cylinder head, it should have had a cam holding tool (either the official tool or one you made holding things together, correctly)....you use a roll-on anaerobic liquid gasket (Volvo part #1161059-9) on the upper half of the cylinder head and use a pull down tool to make sure the fit is tight, then you tighten the bolts from the inside to the outside with 12.5 ft. lbs on each. I would tighten them a bit at a time, making sure of the correct torque for each bolt.

If I missed your question, then I'm sorry- please post back with a more specific question.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
94 850 Sedan NA Drk Blue/Tan
'00 V40 Purple/Grey Mobil-1
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Re: 850 T5 94my Turbo Head bolt torque

Postby carp-guru » 14 Dec 2008, 06:16

Thank you guys that covers the question very well.

Has anybody got the part number for the cam locking tool please??
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Re: 850 T5 94my Turbo Head bolt torque

Postby MadeInJapan » 14 Dec 2008, 12:54

You can build your own- otherwise the cost is prohibitive. Or, you might be able to borrow or rent them from the dealer. There are actually 2 tools...one on the end of the block and the other that goes in the middle to pull down the top of the cylinder cover. I'll look for where to get info on building them...really not hard to make yourself.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
94 850 Sedan NA Drk Blue/Tan
'00 V40 Purple/Grey Mobil-1
MadeInJapan
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Posts: 12099
Joined: 31 Mar 2005, 14:14
Location: Knoxville, TN American but born in Japan
Model and Year: '98 S70 T5

Re: 850 T5 94my Turbo Head bolt torque

Postby Ozark Lee » 14 Dec 2008, 14:03

carp-guru wrote:Thank you guys that covers the question very well.

Has anybody got the part number for the cam locking tool please??


Buy a Haynes manual. It shows how to homebrew all of the tools - It also has torque specs. Most auto parts stores that carry Haynes can get you one within 24 hours.

...Lee
'94 850 N/A
'96 850 N/A
'96 Platinum Edition Turbo
'98 S70 T5
'99 V70XC - RIP Killed by a drunk driver.
Previous: 1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
User avatar
Ozark Lee
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Posts: 11914
Joined: 07 Sep 2006, 14:24
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