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1998 and prior:
http://volvospeed.com/Repair/timingbelt.php
Somewhere (?late 1998 and after..the tensioner is temp-dependent);
http://www.babcox.com/editorial/ic/ic60326.htm
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Now my tips:
As a rule:
- TB good for 60-70K (although you can push the limit, I'd not do it, not worth the risk)
NOTE: Trick is:
1. after lining things up, in addition to the marks from factory on the cams and crank, I make one additional make on each cam and the crank (using white liquid paper) somewhere easy to see, jus double insurance!
I mark the cams at 12 o'clock position and on the plastic cover at corresponding locations.
I mark the CRANKSHAFT at 9 o'clock position.
2. When installing the NEW TB, use Bay 13 bungy cord trick; loop the new belt around:
- WP pulley and tensioner pulley
- crankshaft, now left hand holding the other side of the belt tight, righ hand pulls the belt so it is snugged with CRANKSHAFT
- then loop around right cam (intake cam)...then loop around the RIGHT hand pulley (fixed in place), keep tension on the TB with LEFT hand.
- then loop around left camshaft.
3. IMPORTANT TRICK: install the tensioner (I used a new one). If you use the old one then compress it VERY SLOWLY per Bay 13, insert the pin. Here is the trick: INSTALL the tensioner with pin in and white plastic collar.
DO NOT release the pin until you have TURNED the engine clockwise 2 revolutions.
(I learned this from mistake, things did not line up, I ended up removing the brand new tensioner and compress them again, it is a PAIN!)
4. ONLY AFTER 2 revolutions and things line up fine then release the pin.
AFTER relasing the pin so the tensioner now tensions the TB, remove the bungee cord.
Turn the CRANK 2 more revolutions (BY HAND!!!) and CHECK the marks again before you start the engine! Nothing is worse than having the Timing Belts Off marks and crank the engine using the battery. Better be safe than sorry.
- any tensioner anywhere between 70-120K depending on luck. I changed mine at 54K, just want to sleep well at night and do not have 3-4K to fix an engine head should the tensioner fails.
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Depending on your mileage, if you are at 120K, I'd ALSO look at Water Pump and engine seals.
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Enjoy,...budget a Saturday morning and have a Heineken beer nearby...
cn
1998 V70 70K
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