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850 Gas Tank Heat Shield Fix

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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850 LPT
Posts: 1962
Joined: 27 May 2011
Year and Model: 96' 850
Location: CT
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850 Gas Tank Heat Shield Fix

Post by 850 LPT »

My daughter came home to visit from Boston last weekend and reported a scraping sound from the car. Luckily she was close to getting off the highway and was only 15 mins from home. Her boyfriend identified a dragging heat shield as the problem.

We lifted the car up and examined the situation. I didn't have much time to work on the car and had to come up with a quick solution that didn't involve ordering parts.

The heatshield sits between the exhaust pipe and the tank with not a lot of space between them. It is held in place with 3 rubber mounted M6 studs. Two of them were rusted off, and the remaining one acted as a nice pivot point, so that the back end of the heat shield was able to nicely dangle on the ground.

Instead of messing with those studs I decided to attach the heat shiel to the pipe instead, and it worked out fine.

I had two 2 1/8" exhaust clamps that fit nicely around the exhaust pipe. After loosely mounting them I marked the hole pattern of the clamps on the heat shield while holding it roughly in the same position. Then I drilled generous thru holes in the heat shield.
Since there is not a whole lot of room for hands I installed the whole assembly loosely kind of tilted down. When all the nuts were in place I turned the heat shield upward and tightend everything down. Enough rambling, photos will say much more:
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IMG_2262.JPG (284.8 KiB) Viewed 333 times
98' S70, base, 5-speed manual, pewter/ tan, 145k miles
99' S70, base, 5-speed manual, nautic blue/ tan, 225k miles, currently inop
06' V70, auto, willow green/ charcoal, 147k miles
79' Ford Capri S, Euro Spec 2.8 V6, T9 5-speed manual, owned since 1986
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markone
Posts: 64
Joined: 6 September 2018
Year and Model: 2007 V70
Location: Vermont
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Post by markone »

Nice work. Back on the road in no time!
2006 V70 NA/manual trans, 165k
2007 V70, NA/manual trans, 143k miles
2023 BMW X1, 29k miles
2018 Jeep Grand Cherokee LTD, 91k miles
2007 Malibu Response LXi, Ebony/white, 340 hp, 395 hours
1997 850 Sedan NA, manual trans, sold at 330k miles
1998 V70, NA/manual trans, sold at 365k miles

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