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Broken head bolt

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
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erikv11
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Joined: 25 July 2009
Year and Model: 850, V70, S60R, XC70
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Re: Broken head bolt

Post by erikv11 »

greg850r wrote: ↑12 Jun 2018, 16:40... Every one of them sounded like it was breaking, we used a floor jack handle to extend the 1/2" breaker bar. ...
It's like this every time with these P80 engines, pretty unnerving! Intuitively, leaning in to a long lever arm with steadily increasing torque seems better than hard jerks to get them started, then repeat until they are loose. I've not broken one (yet? knock on wood) so don't have first-hand experience but over the years the left-handed-bit-with-guide approach has given a lot of success for people on this forum.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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