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Must set timing marks from scratch V70.

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

ONV70XC
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Year and Model: 1999 V70 XC
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ONV70XC

Must set timing marks from scratch V70.

Post by ONV70XC » Sun Dec 23, 2012 11:43 am

Hi found timing marks and positioned them on crank and two cams as marked. Put timing belt on and tried to rotate engine. At some point I hit position where I can't go any further. I don't think that I reached compression rather than I reach valves and can't turn engine any further.
How to align timing marks from very very very scratch?



Ozark Lee
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Ozark Lee

Re: Must set timing marks from scratch V70.

Post by Ozark Lee » Sun Dec 23, 2012 12:18 pm

The crankshaft needs to line up with notch on the oil pump being centered between the two timing marks. It sounds like you are there on the crankshaft.

The camshafts get lined up from the rear. The camshafts have slots that are off center and the intake camshaft should be aligned so that the slot is above the joint between the head and the cam cover.
GEDC1014.JPG
The exhaust camshaft slot is set so that the slot is below the head / cam cover joint.
GEDC1016.JPG
If the sprockets on the front of the cams have not been moved the intake timing mark should be very close if not spot on the mark and the exhaust cam should at least be close.

Is this the '99 XC that you are working on?

...Lee
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'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

ONV70XC
Posts: 135
Joined: Wed Jul 18, 2012 10:21 am
Year and Model: 1999 V70 XC
Location: North Carolina
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ONV70XC

Re: Must set timing marks from scratch V70.

Post by ONV70XC » Sun Dec 23, 2012 12:28 pm

Yes. That's the one 99 v70 xc b5254. I would also assume that the marks on cam pooley is OK and will allow cams to rotate.



Ozark Lee
MVS Moderator
Posts: 14793
Joined: Thu Sep 07, 2006 8:24 am
Year and Model: Many Volvos
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United States of America
Ozark Lee

Re: Must set timing marks from scratch V70.

Post by Ozark Lee » Sun Dec 23, 2012 12:47 pm

The 5254 has front timing marks that line up differently than most of the pictures on the site, they line up vertically.
GEDC1023.JPG
GEDC1022.JPG
If you are there the engine should rotate freely, take the spark plugs out and see if it hits. It shouldn't hit anywhere.

...Lee
You do not have the required permissions to view the files attached to this post.


'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

ONV70XC
Posts: 135
Joined: Wed Jul 18, 2012 10:21 am
Year and Model: 1999 V70 XC
Location: North Carolina
Has thanked: 0
Been thanked: 0
ONV70XC

Re: Must set timing marks from scratch V70.

Post by ONV70XC » Sun Dec 23, 2012 12:57 pm

Hah I was trying to align on letters 'M' instead of cuts. I'll try to locate them by any luck
If I don't how do I access the rear of cams? Should I replace re-glue new the plastic cover that blocks the rear of cam?



Ozark Lee
MVS Moderator
Posts: 14793
Joined: Thu Sep 07, 2006 8:24 am
Year and Model: Many Volvos
Location: USA Midwest
Has thanked: 4 times
Been thanked: 46 times
United States of America
Ozark Lee

Re: Must set timing marks from scratch V70.

Post by Ozark Lee » Sun Dec 23, 2012 2:30 pm

So long as you didn't remove the cam sprockets you should be able to do this all without taking the cam position sensor or the cover plate off. For whatever reason Volvo didn't install rear oil seals on the cams behind the cover plate.

Once you get the cams lined up correctly and are able to rotate the engine through without hitting anything you will need to deal with the variable valve timing preload.

Line up the timing marks, put the belt on, and rotate the engine clockwise 2 revolutions and check that the marks still line up.

Rotate the engine an additional 90 degrees clockwise and then rotate it back, counter clockwise, to the marks.

Remove the belt and re-adjust the exhaust cam timing by rotating exhaust cam back to the mark as the belt goes back on. Tighten the tensioner and rotate the engine by hand, clockwise, another couple of revolutions to double check that the marks are still lined up.

I have found that the tensioner needs to be adjusted a few times to get it right after you restart the engine.

...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

ONV70XC
Posts: 135
Joined: Wed Jul 18, 2012 10:21 am
Year and Model: 1999 V70 XC
Location: North Carolina
Has thanked: 0
Been thanked: 0
ONV70XC

Re: Must set timing marks from scratch V70.

Post by ONV70XC » Mon Dec 24, 2012 6:35 am

Got that Lee. Appreciate your help. These marks are almost invisible, but managed to get that right and turned the starter key only after ensuring rotation of motor.
Worked.



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