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1998 2.4 Camshafts in 1999 T5

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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xApprchsNfnty
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Re: 1998 2.4 Camshafts in 1999 T5

Post by xApprchsNfnty » Tue May 12, 2020 4:27 am

Looks like bad lifters don't necessarily need to be replaced as long as the top is still flat and can be cleaned out to work like new, so I think I'll do that.

But is there an issue with running bad lifters? I suppose if the lifter piston is stuck 'out' rather than stuck 'in' it could be keeping the valves open. I did test the lifters from cyl#2 which did not have leaking valves and cyl#5 which did and their lifters were essentially the same.

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bmdubya1198
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Re: 1998 2.4 Camshafts in 1999 T5

Post by bmdubya1198 » Tue May 12, 2020 9:00 am

If they're loudly clacking constantly, they are worn out and need replacement. If not, you probably have nothing to worry about.
2000 V70R Venetian Red/Charcoal M56 Swapped 195k
2003 S60 2.4T Silver/Black 112k
2007 XC90 V8 AWD Sport Titanium Grey/Black 166k
1991 944 Turbo Dark Green/Beige 173k
1992 245 Base White/Beige 249k
2006 BMW 330i
Sold-
2000 S70 GLT Mystic Silver/Taupe 253k
1993 944 Base Beige/Beige 221k
1998 V70 GLT Black/Beige 199k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k

xApprchsNfnty
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Re: 1998 2.4 Camshafts in 1999 T5

Post by xApprchsNfnty » Tue May 12, 2020 1:43 pm

Image

I decided to disassemble/clean them. When reassembled, they all spring back easily since I didn't pre-fill them (but I did test the check valve). I'll submerge them in oil and pump the piston until all of the air escapes which will leave the one-way interior chamber to fill with oil once reinstalled and there's pressure so that they form-fit to the clearance between the valve and the cam. I think this is the best procedure.

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RickHaleParker
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Re: 1998 2.4 Camshafts in 1999 T5

Post by RickHaleParker » Tue May 12, 2020 1:45 pm

bmdubya1198 wrote:
Tue May 12, 2020 9:00 am
If they're loudly clacking constantly, they are worn out and need replacement. If not, you probably have nothing to worry about.
Not necessarily. It could be a defective Oil Pick Up Tube O-ring. A defective Oil Pick Up Tube O-ring is like a straw with a hole in it. It works but not as effectively. Not enough oil gets to the lifters. They don't pump up completely then clatter because of the gap between the valve train components. Pretty common on high mileage engines
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

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bmdubya1198
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Re: 1998 2.4 Camshafts in 1999 T5

Post by bmdubya1198 » Tue May 12, 2020 11:17 pm

RickHaleParker wrote:
Tue May 12, 2020 1:45 pm
bmdubya1198 wrote:
Tue May 12, 2020 9:00 am
If they're loudly clacking constantly, they are worn out and need replacement. If not, you probably have nothing to worry about.
Not necessarily. It could be a defective Oil Pick Up Tube O-ring. A defective Oil Pick Up Tube O-ring is like a straw with a hole in it. It works but not as effectively. Not enough oil gets to the lifters. They don't pump up completely then clatter because of the gap between the valve train components. Pretty common on high mileage engines
That’s true. As long as the lifters hold pressure they should be fine, restricted oil flow is another concern.
2000 V70R Venetian Red/Charcoal M56 Swapped 195k
2003 S60 2.4T Silver/Black 112k
2007 XC90 V8 AWD Sport Titanium Grey/Black 166k
1991 944 Turbo Dark Green/Beige 173k
1992 245 Base White/Beige 249k
2006 BMW 330i
Sold-
2000 S70 GLT Mystic Silver/Taupe 253k
1993 944 Base Beige/Beige 221k
1998 V70 GLT Black/Beige 199k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k

xApprchsNfnty
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Re: 1998 2.4 Camshafts in 1999 T5

Post by xApprchsNfnty » Mon May 18, 2020 8:41 pm

Ok, head back on the block and all cylinders between 5-10% leak! Lovely! So it was definitely either poorly seating valves or stuck lifters. Either way, I'm solid. Hope to get it all back together and on the road in the next day or so. And with those numbers I'm not at all regretting that I didn't re-ring it when I had the chance. Stoked.

Thanks everyone for all the help. The initial intent was to get it ready to sell as I've already bought its replacement. It'll be a little harder to let go now.

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bmdubya1198
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Joined: Tue Dec 30, 2014 10:45 am
Year and Model: 2K V70R M56
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Re: 1998 2.4 Camshafts in 1999 T5

Post by bmdubya1198 » Mon May 18, 2020 9:41 pm

Nice! Glad to hear it seems to be fixed!
2000 V70R Venetian Red/Charcoal M56 Swapped 195k
2003 S60 2.4T Silver/Black 112k
2007 XC90 V8 AWD Sport Titanium Grey/Black 166k
1991 944 Turbo Dark Green/Beige 173k
1992 245 Base White/Beige 249k
2006 BMW 330i
Sold-
2000 S70 GLT Mystic Silver/Taupe 253k
1993 944 Base Beige/Beige 221k
1998 V70 GLT Black/Beige 199k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k

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