Just a Redblocker, but thought I might assist someone with a V70 in terms of replacing cam\crank seals.
After reviewing various videos/websites, it seems no specialty tools like this are needed.
Am I missing something here....I assume cam/crank sprockets have alignment marks??
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References:
1. Instructions for DIY Cam locking tool
2. Diy Cam Locking Tool
3. No timing marks on crank or cam shaft - Volvo 960
4. CYLINDER HEAD / GASKET, REPLACING: 2001 VOLVO S80 T6
Note - Below were found much later after this post was made
5. Hi doing timing belt need cam locking tool were can i rent?
6. DIY: 1998 Volvo S70 Timing Belt, WP, Cam Seals, SB Overhaul
cam locking tools
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Ozark Lee
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What year is the V70 in question?
On a '98 you can do the job without the camshaft adjustment tool. For a '99 and on, if you are replacing the front seals, you really do need the tool since the CVVT hub is not indexed or keyed. You also need it there to hold the cam to get the hub itself properly torqued back down.
You can replace the rear seals with no need to mess with the timing at all on all years but you will find that the intake cam doesn't even have a seal on the '99+ cars and the oil is sealed by the cap over the old distributor hole. I don't particularly care for that plan and I add a seal in addition to the cover. The cap over the distributor hole is nearly impossible to get out without destroying it. The rear seals are the same for both intake and exhaust.
For the CVVT cars you need to go through the CVVT preload procedure as a last step.
...Lee
On a '98 you can do the job without the camshaft adjustment tool. For a '99 and on, if you are replacing the front seals, you really do need the tool since the CVVT hub is not indexed or keyed. You also need it there to hold the cam to get the hub itself properly torqued back down.
You can replace the rear seals with no need to mess with the timing at all on all years but you will find that the intake cam doesn't even have a seal on the '99+ cars and the oil is sealed by the cap over the old distributor hole. I don't particularly care for that plan and I add a seal in addition to the cover. The cap over the distributor hole is nearly impossible to get out without destroying it. The rear seals are the same for both intake and exhaust.
For the CVVT cars you need to go through the CVVT preload procedure as a last step.
...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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Ozark Lee
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On the '03 I think you have CVVT on both the intake and exhaust.
I am not familiar with the procedure for the dual CVVT but on the older ones with just the exhaust CVVT you set the timing a tooth off initially to torque down the hub and then you put the timing belt on, lined up to the marks. You then hand roll the engine around a couple of revolutions clockwise and kept going 90 degrees past the timing marks. At that point you go back counter-clockwise to the marks, remove the timing belt from the cams, and re-align the outer ring on the hub back to the timing marks as you put the belt back on. At that point you should not be at the end stop on the hub in either direction. It isn't usually centered but it is not all the way to one side or the other.
The thing to get your head around is that the timing marks are on the outer sprocket which moves independently from the camshaft itself over a 20 degree or so arc.
...Lee
I am not familiar with the procedure for the dual CVVT but on the older ones with just the exhaust CVVT you set the timing a tooth off initially to torque down the hub and then you put the timing belt on, lined up to the marks. You then hand roll the engine around a couple of revolutions clockwise and kept going 90 degrees past the timing marks. At that point you go back counter-clockwise to the marks, remove the timing belt from the cams, and re-align the outer ring on the hub back to the timing marks as you put the belt back on. At that point you should not be at the end stop on the hub in either direction. It isn't usually centered but it is not all the way to one side or the other.
The thing to get your head around is that the timing marks are on the outer sprocket which moves independently from the camshaft itself over a 20 degree or so arc.
...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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93Regina
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Yes, thanks again...I need to sort out the literature, and determine the steps for his engine...specific steps involved.
I did come across this today: CVVT Hub Replacement (How to DIY) - P2
And Robert's Video, which I have not seen yet: CVVT and VVT hub, timing, installation, adjustment, how to install, etc. Volvo cams - VOTD
And another video: CVVT Removal And Setup
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