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S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models |
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Lazy thermostat?Views : 1230 Replies : 18Users Viewing This Thread : |
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Oct 31st, 2023, 22:23 | #11 | |
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Quote:
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2007 S80 2.4 D5 - 110,000 miles |
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Oct 31st, 2023, 22:52 | #12 |
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You're right. Just had a squint at a couple of newer ones on Autotrader and, sure enough, they have gauge.
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V70 D5 SE Lux MY 2008 |
Nov 2nd, 2023, 18:11 | #13 |
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An update. I bit the bullet and bought a replacement thermostat this week - a Gates TH35991, which seems to be one of the recommended makes judging by various online suppliers. All looks OK, but it doesn't come with a separate gasket, which was a bit of a surprise. A gasket is listed for the lower part of the housing (which I don't intend to remove) but no reference to a gasket for the upper part. There is a rubber(?) seal on the circular flange of the thermostat, but it seems unlikely that alone would provide a seal. Any clues please, people?
[IMG][/IMG]
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V70 D5 SE Lux MY 2008 |
Nov 2nd, 2023, 18:55 | #14 |
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No experience with this engine, but I’d hazard a guess it’s an o-ring seal in the housing. My P2 E3 was, now I’ve got the E5, it’s a nightmare, but o-ring sealed.
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Nov 3rd, 2023, 08:47 | #15 |
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Thanks for that, an 'O' ring is pretty much what I expected/hoped for. I'd done a bit of a search online and YouTube hoping for some clarity or even a part number for a gasket or 'O' ring but drawn a blank. Most of the videos seemed to be US ones on petrol engines or otherwise unclear. Think I'll hang fire on doing the job for now as I'd like to have a new seal at hand in case the old one is like a wet jelly baby.
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V70 D5 SE Lux MY 2008 |
Nov 3rd, 2023, 09:20 | #16 |
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The rubber type gasket shown in the photo looks like the fitting that other Volvo cars have & many other makes:~
It is not an "O" ring as such but a "U" shape that fits over the OD of the thermostat. if it is the above- clean the fitting recess and spread a small amount of your favourite gasket seal onto the parts (you don't need a lot) the above seal will get compressed as you tighten the retaining bolts- coat the threads with copper grease for the next time/owner. Bob. |
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Nov 3rd, 2023, 12:24 | #17 | |
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V70 D5 SE Lux MY 2008 |
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Nov 3rd, 2023, 20:49 | #18 |
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Sadly this gasket (11 in the pic) is only available as part of the whole thermostat assembly at £124.80. I've ordered a couple of sheets of gasket paper.
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V70 D5 SE Lux MY 2008 Last edited by Pidgeonpost; Nov 3rd, 2023 at 20:52. |
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Jan 5th, 2024, 11:25 | #19 |
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Thermostat gasket
Google - VO31293699GA. - GParts
In Russia
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2003 V70 D5- 145000 miles- Bi Xenon Factory 7 seater |
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