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The EASY way to line up Crank marks for Timing Belt

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
1997 - 2000 V70-XC
1997 - 2004 C70

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erikv11
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Re: The EASY way to line up Crank marks for Timing Belt

Post by erikv11 » Mon Feb 11, 2019 2:31 pm

Yes, they face the engine, so you can see the little notches from the top in good light. Those notches are visible in your first pic where the timing is off by a half tooth. A PITA but it works. Good move marking them to make it easier in the future.

Ball park tests are not advisable for timing an interference engine, always be certain with the actual crank marks. It may be hard to see them but they are there, don't stop until you see them ...
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

XC70Rider
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Re: The EASY way to line up Crank marks for Timing Belt

Post by XC70Rider » Tue Feb 12, 2019 1:31 pm

erikv11 wrote:
Mon Feb 11, 2019 2:31 pm
Yes, they face the engine, so you can see the little notches from the top in good light. Those notches are visible in your first pic where the timing is off by a half tooth. A PITA but it works. Good move marking them to make it easier in the future.

Ball park tests are not advisable for timing an interference engine, always be certain with the actual crank marks. It may be hard to see them but they are there, don't stop until you see them ...
After throwing the crank gear back on I installed the timing belt. As known you don't want to rotate the crank with the belt missing. After fully rotating by hand twice the crank and both cam markings were still dead center. With the strut tower blockage I used a tiny ruler and mirror to confirm the exhaust cam marking. Got it done on the first try and she's running smooth with no codes.

Mountainman45
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Re: The EASY way to line up Crank marks for Timing Belt

Post by Mountainman45 » Sat Jan 11, 2020 5:17 am

Why don't you want to rotate the crank alone

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ZionXIX
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Re: The EASY way to line up Crank marks for Timing Belt

Post by ZionXIX » Sat Jan 11, 2020 11:31 pm

Mountainman45 wrote:
Sat Jan 11, 2020 5:17 am
Why don't you want to rotate the crank alone
For fear of bending the valves

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