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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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I might have done the wrong thing with my sunroofViews : 877 Replies : 11Users Viewing This Thread : |
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Jun 20th, 2022, 20:22 | #1 |
Offgrid camper
Last Online: Today 07:22
Join Date: Apr 2022
Location: Havant
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I might have done the wrong thing with my sunroof
As you guys know, it is a 1988 740 saloon, and the sunroof was taped up with heavy duty bitumen tape. It's been like an oven in the car on some days recently, so I decided that I would try to get the sunroof back into service. I always seem to be over-confident in my abilities, and I decided that all it needed was the cleaning of the gutter drains. I removed the tar strips, and that was an easy job. Underneath was some hessian type adhesive tape, so I removed that - another doddle of a job. Now the truth was revealed. The previous owner's "mechanic" had injected mastic into the gap around the whole of the sunroof panel. It took me 2 hours to cut it out, and now the seal is not in as-new condition. There is still some mastic in the mechanism, and I have to hold the flappy bit in front down with a screwdriver to close it. Yes, I did manage to revive the motor, which just needed a replacement fuse.
There are some really good maintenance videos I've watched, and I'll try to clean up everything. I suspect that I'll have to remove the sunroof to do this. I'm also going to need some new rubber seals, and I'm shocked to see that some sellers are charging up to £80 for these. Do I really need a Volvo part, or can I buy some suitable rubber strip to make the seals? This is probably not the most important job to be done on this car, so I'm wondering if I should just tape it up again, and leave the job for Ron ( I expect you guys know about Later Ron). I love the sunroof, and I would really like to restore it, but it has turned out to be a much larger job than I anticipated. |
Jun 20th, 2022, 21:46 | #2 |
VOC Member
Last Online: Today 01:54
Join Date: Feb 2008
Location: Gloucester
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This post might help you.
https://www.volvoforums.org.uk/showthread.php?t=299721 Folk referred me to it when I was trying to fix a later glass moonroof with a plastic wind deflector. Unfortunately, the parts are not interchangeable and so it didn’t work for me. Good luck. It is irritating when things on these cars don’t quite work how they’re intended to. |
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Jun 20th, 2022, 23:11 | #3 |
Premier Member
Last Online: Feb 11th, 2023 20:32
Join Date: May 2010
Location: Blyth, Northumberland
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If it’s a steel sun roof the below thread may also help.
https://www.volvoforums.org.uk/showthread.php?t=305687
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Ian. Since 2005: 1992 Volvo 940 estate 2.0L. Manual. Daily driver and workhorse. |
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Jun 20th, 2022, 23:18 | #4 |
Premier Member
Last Online: Today 00:28
Join Date: May 2012
Location: Lakenheath
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You will need the Volvo seal for it, it's bespoke to the Volvo panel sadly and yes, it's the sharp end of £100 from your local Volvo main stealer. Protect the new seal with an annual generous application of silicone grease, let it soak in for 20-30 minutes then gently wipe off the excess.
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Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........ |
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Jun 21st, 2022, 06:07 | #5 |
Senior Member
Last Online: Apr 22nd, 2024 07:18
Join Date: Jul 2019
Location: Stoke on trent
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I've been doing the silicone grease on the sun roof seals dave it works great bringing it back to life only do it once a year going to do it shortly
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Jun 21st, 2022, 11:23 | #6 |
Offgrid camper
Last Online: Today 07:22
Join Date: Apr 2022
Location: Havant
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I've had a look at the mechanism, and there is a bit of rust there. The rear pivot point on the wind deflector has rusted through, so I have to hold the deflector down with a screwdriver to close the roof. I suspect I will have to remove the sunroof to check on the damage. The drain holes don't clear water as quickly as I would have expected. So I suspect that this may have been the original problem, but that is easy to fix.The inner seal/trim looks OK, so I will clean that up and reuse it. There is a bit of rust on the edges of the car bodywork. That will need to be treated and repainted. The mechanism could do with a clean and grease.
I'm enjoying the use of the sunroof, so I hope that the cleaning that I have done will stop too much of a flood entering the car if we do get some rain before I can complete the task. I've also removed the heated seat fuse, as that seems to have been the source of the previous electrical problems. I don't know if these were caused by a wet seat, or wet wiring under the carpet. |
Jun 21st, 2022, 14:58 | #7 |
Premier Member
Last Online: Feb 11th, 2023 20:32
Join Date: May 2010
Location: Blyth, Northumberland
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Have a look at my post #4 in the link provided by Forrest in his post #2 on this thread. If your deflector is the same as mine then the unsecured rear end of that side arm may not prevent the deflector from being pushed down as the roof closes.
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Ian. Since 2005: 1992 Volvo 940 estate 2.0L. Manual. Daily driver and workhorse. |
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