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How to replace the lower/inner Timing Cover.

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

bhgran
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bhgran

How to replace the lower/inner Timing Cover.

Post by bhgran » Fri Mar 06, 2020 9:55 am

I am currently performing my 4th Timing Belt replacement & all components behind the Timing Cover. The inner/lower timing cover is very brittle & pieces of the cover have broken off.

How difficult is it to replace this inner/lower cover? The P/N is 9135040.

Do I have to remove the timing belt, serp belt, etc to replace the cover?

Any videos or step by step procedure are welcome. I currently have the engine set to install the new belts.

Thanks,
Bruce

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RickHaleParker
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Re: How to replace the lower/inner Timing Cover.

Post by RickHaleParker » Fri Mar 06, 2020 2:15 pm

bhgran wrote:
Fri Mar 06, 2020 9:55 am

Do I have to remove the timing belt, serp belt, etc to replace the cover?
Looks like you will need to take off the Timing belt, Tensioner, Idler and Camshaft pulleys. You might need to remove the Crankshaft pulley. It does look like the two lower casing bolts are behind the Crankshaft pulley. Then unbolt the casing from the block.
2020-03-06.png
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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erikv11
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Re: How to replace the lower/inner Timing Cover.

Post by erikv11 » Fri Mar 06, 2020 3:37 pm

This job is a real PITA to do with the engine in the car.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 165k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

850oldschool
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Re: How to replace the lower/inner Timing Cover.

Post by 850oldschool » Sun Mar 08, 2020 1:29 pm

Thinking about this because mine is getting brittle. Is it even theoretically possible to do this with the engine in the car?

850oldschool
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Re: How to replace the lower/inner Timing Cover.

Post by 850oldschool » Sun Mar 08, 2020 1:29 pm

Thinking about this because mine is getting brittle. Is it even theoretically possible to do this with the engine in the car?

SlowLane
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Re: How to replace the lower/inner Timing Cover.

Post by SlowLane » Thu Mar 12, 2020 2:57 pm

I did this replacement quite recently on my S80.

Twice, as it turned out, because on the the first attempt I failed to notice that parts of the inner cover go behind the water pump flange, as it was clearly intended to be installed before the water pump goes in. The cover was being bent away from the engine by the pump body and would rub on the back of the exhaust cam cog.

I didn't care to remove my water pump, so I ended up hacking away bits of the cover until it would fit flush to the case. The fit is "floppy" to be charitable, but at least it isn't rubbing on the cog any more.

YMMV, of course, as that was a P2, but be forewarned that you may run into the same issue.
Current Volvos:
2002 2.9 S80 - Wife's car, the "Silver Flash"
1996 855 Turbo - Formerly daughter's ride. My toy now.

Former Volvos:
1997 855 GLT - Totalled by daughter. Now she appreciates Volvos. :wink:
1984 244 DL B23F - warped head after radiator blew
1982 245 GL B21A - My first Volvo. Sold with 400,000 km on it.

Other:
1981 VW Westfalia

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