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2001 C70 Timing belt slipped, resulting in bent valves

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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jackissocool
Posts: 9
Joined: 7 March 2015
Year and Model: 2001 c70
Location: new jersey

2001 C70 Timing belt slipped, resulting in bent valves

Post by jackissocool »

My belt slipped, and valves are obviously bent, so they're getting replaced. I've never done this type of work before, so I'm going to need some help. I consider myself mechanically inclined. I worked on helicopters in the army for a few years, so I know my way around a pair of pliers or two.
If anyone can refer me to a step by step procedure for this, that would be just grand.

precopster
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Post by precopster »

There is an excellent guide in the P80 850 Repair database. Let us know if you can't find it.
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

JRL
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Post by JRL »

If the pistons are OK buy a complete remaned head from Clearwater Heads.
Probably the best and cheapest way to do this job
Mod note. Jim passed away in early 2022, his contributions to this forum are immortal, and he is missed. RIP

2000 V70R Black, 144,000 miles Wife's R.
2007 V70 2.5T White/Oak 111,000 MILES. Polestar tune, IPD bars, rear spoiler, dark grey Thors, DWS 06, HU850, sub.

tryingbe
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Post by tryingbe »

Might be cheaper and easier to replace the entire engine with a working one.
85 GLH, 367 whp
00 Insight, 72 mpg

Ozark Lee
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Post by Ozark Lee »

Other than getting the valves replaced which is often done at the machine shop, or buying a rebuilt head from a place like Clearwater, the steps are all the same as in this tutorial:

Volvo 5-cylinder: How to Replace the Head Gasket

...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

jackissocool
Posts: 9
Joined: 7 March 2015
Year and Model: 2001 c70
Location: new jersey

Post by jackissocool »

thanks guys. clearwater doesnt even have my head in stock anyway. i really want to do this job myself. it'll definitely do me some good to learn more about my car

precopster
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Post by precopster »

My own experiences rebuilding a 98T5 engine: https://www.matthewsvolvosite.com/forums ... t=65172'98 V70R AWD with high mileage should I plunge?

Timing system is slightly different of course though most other things are pretty close to your 2001.
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

xHeart
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Post by xHeart »

Inspire you a little ...
--
Golden-German Shepherd | 2021 XC90 T6 INSCRIPTION (Nexa) | 2020 V60CC (Frska) | 2013A XC90 (Lktra)
Past: Golden Retriever | 2001 V70XC | 1997 Volvo 854 | 1989 Volvo 740 GL | 1979 Volvo 240

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