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Power Antenna Repair- a few questions

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.
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Power Antenna Repair- a few questions

Postby viper69 » 31 Aug 2010, 08:19

I have a few questions..First description of problem. The metal antenna (I believe it's called the mast?) only goes up and down partially as of this morning. Few months ago I noticed the electric motor started to sound louder (think of motorized gears from a home stereo receiver volume knob, but louder!)

Tonight..it was really loud at one point. Now if I give the antenna a little push down or a little pull up a couple times the motor will retract or lift the antenna. But if I don't give it the push/pull, the motor just keeps running.

So before I start taking anything apart:

Does it sound like the plastic piece w/teeth (the spline I believe is the name?) is just old and chewed up, that is missing teeth? This is the original antenna too.

Second question: Where can I source the antenna and spline. I checked ipd but some people did not like the antenna ipd offers. It's a thinner metal, and some people complained of rust.

Third question
: If I don't need a new motor ( I HOPE not), how do I make sure there aren't any little plastic bits caught in the antenna motor? I wouldn't be surprised if I needed a new motor because the motor is quite loud.

Last question
: Is there an aftermarket SHORT, fixed antenna like all the new cars have, I could use instead of having a power antenna?

Thanks in advance.
Volvo 850 GLT 1995

5 Speed Manual transmission

114,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual
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Re: Power Antenna Repair- a few questions

Postby Ozark Lee » 31 Aug 2010, 11:07

You just need the mast. The aftermarket masts are cheap but they do work. You can buy a replacement from FCP for around $16.00.

...Lee
'94 850 N/A
'96 850 N/A
'96 Platinum Edition Turbo
'98 S70 T5
'99 V70XC - RIP Killed by a drunk driver.
Previous: 1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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Re: Power Antenna Repair- a few questions

Postby viper69 » 31 Aug 2010, 20:56

I had a feeling they were cheap in construction thanks. Do you think the motor will be quieter once the mast is replaced?
Volvo 850 GLT 1995

5 Speed Manual transmission

114,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual
viper69
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Re: Power Antenna Repair- a few questions

Postby BEJinFbk » 31 Aug 2010, 21:03

Power antenna masts need a little TLC every once in a while.
Get a can of TriFlow and a paper towel. Fold it over and wrap it around the mast.
With the antenna fully raised, hit it with a good blast of the teflon lube and apply
liberally to the entire mast. Run it up and down a few times and you may be done!

The masts will usually last forever as long as they stay straight and you lube'em periodically.
'98 V70 R - Well Equipped for Life Up North... ;)
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Re: Power Antenna Repair- a few questions

Postby viper69 » 31 Aug 2010, 21:13

BEJinFbk wrote:Power antenna masts need a little TLC every once in a while.
Get a can of TriFlow and a paper towel. Fold it over and wrap it around the mast.
With the antenna fully raised, hit it with a good blast of the teflon lube and apply
liberally to the entire mast. Run it up and down a few times and you may be done!

The masts will usually last forever as long as they stay straight and you lube'em periodically.


Well the metal mast is straight no doubt of that. Is Triflow any better or worse than WD40? I realize Triflow is a soy lube.

So if it's just the mast being "sticky" and nothing wrong w/the spline or motor...why would the antenna motor's noise increase in sound. SO LOUD that inside the car w/the radio on, it sounded like someone was grinding away the left rear quarter panel at one point. That part doesn't make sense to me.
Volvo 850 GLT 1995

5 Speed Manual transmission

114,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual
viper69
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Posts: 224
Joined: 27 Jun 2004, 00:41
Model and Year: 850GLT 1995

Re: Power Antenna Repair- a few questions

Postby phils94850 » 31 Aug 2010, 21:45

viper as they stated you can try lubricating the mast, if that doesnt fix it, ive actually taken the antenna motor out, disassembled and lubed the gears with wheel bearing grease and that usually made the motor run nice and quiet again. The factory lube usually gets dry and brittle and the gears start getting louder.
96 850 R
I-Roll Tuning Chip, front strut bar, HID headlights, side markers, Double DIN CD/ DVD/GPS, Remote Start, Back-up Camera, (5-speed swap soon)
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Re: Power Antenna Repair- a few questions

Postby viper69 » 31 Aug 2010, 21:51

phils94850 wrote:viper as they stated you can try lubricating the mast, if that doesnt fix it, ive actually taken the antenna motor out, disassembled and lubed the gears with wheel bearing grease and that usually made the motor run nice and quiet again. The factory lube usually gets dry and brittle and the gears start getting louder.


Thanks..that's what I was wondering as well.
Volvo 850 GLT 1995

5 Speed Manual transmission

114,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual
viper69
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Posts: 224
Joined: 27 Jun 2004, 00:41
Model and Year: 850GLT 1995

Re: Power Antenna Repair- a few questions

Postby Ozark Lee » 01 Sep 2010, 01:05

I had one (a replacement) that would get stuck and I found that wheel bearing grease coated on the plastic spline fixed everything. I'm sure the plastic (on the spline) isn't happy about it but for $16.00 for another replacement mast I'm not losing a heck of lot of sleep over it. It has worked fine now for a couple of years.

...Lee
'94 850 N/A
'96 850 N/A
'96 Platinum Edition Turbo
'98 S70 T5
'99 V70XC - RIP Killed by a drunk driver.
Previous: 1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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Re: Power Antenna Repair- a few questions

Postby viper69 » 01 Sep 2010, 01:53

OK...So the actual repair, assuming it's just the antenna: Is this something that requires me to remove the trunk panel or not? If not, then I assume the spline is just fed into the hole, and then what, you turn on the car and radio, and you feed the spline in the hole. I don't know the sequence of events really. I saw some post which said you turn on the radio "about twenty times" which makes no sense to me because the motor would just take in whatever it was given, and "spit" it back out....

And my original question:

Third question: If I don't need a new motor (I HOPE not), how do I make sure there aren't any little plastic bits caught in the antenna motor? I saw some references to this.
Volvo 850 GLT 1995

5 Speed Manual transmission

114,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual
viper69
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Model and Year: 850GLT 1995

Re: Power Antenna Repair- a few questions

Postby Ozark Lee » 01 Sep 2010, 01:59

All you need to remove is the nut at the top of the mast. The base of the mast has a ferrule that wants to get stuck in the socket but all and all it is very easy - a 1 wrencher. The hardest part is getting the new mast spline to bite into the motor gears - it may take a few shots.

The instructions on the bag are actually very helpful.

...Lee
'94 850 N/A
'96 850 N/A
'96 Platinum Edition Turbo
'98 S70 T5
'99 V70XC - RIP Killed by a drunk driver.
Previous: 1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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Re: Power Antenna Repair- a few questions

Postby viper69 » 01 Sep 2010, 03:09

Ozark Lee wrote:All you need to remove is the nut at the top of the mast. The base of the mast has a ferrule that wants to get stuck in the socket but all and all it is very easy - a 1 wrencher. The hardest part is getting the new mast spline to bite into the motor gears - it may take a few shots.

The instructions on the bag are actually very helpful.

...Lee


Thanks..I just pulled it open..there was a fair amount of black "sludge" in between some of the teeth. However nothing major, I cleaned it off, and that didn't help any. I think the motor itself is OK.

QUESTION. After I undid the nut on the black rubber antenna mount, the old spline remains inside the housing. How does one take it out??? I'm clearly missing something very simple or obvious. I didn't want to pull on the spline, because I concerned about potentially damaging the gears of the antenna motor itself. For something so simple..this is a real pain.
Volvo 850 GLT 1995

5 Speed Manual transmission

114,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual
viper69
Forum Member
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Posts: 224
Joined: 27 Jun 2004, 00:41
Model and Year: 850GLT 1995

Re: Power Antenna Repair- a few questions

Postby viper69 » 01 Sep 2010, 21:49

Any suggestions or ideas on my last question?
Volvo 850 GLT 1995

5 Speed Manual transmission

114,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual
viper69
Forum Member
Forum Member
 
Posts: 224
Joined: 27 Jun 2004, 00:41
Model and Year: 850GLT 1995

Re: Power Antenna Repair- a few questions

Postby Ozark Lee » 01 Sep 2010, 22:03

Are there any bent sections on the mast?

Even the slightest bend will hang the system up. You can bend things back by hand.

...Lee
'94 850 N/A
'96 850 N/A
'96 Platinum Edition Turbo
'98 S70 T5
'99 V70XC - RIP Killed by a drunk driver.
Previous: 1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
User avatar
Ozark Lee
MVS Moderator
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Posts: 11950
Joined: 07 Sep 2006, 14:24
Location: USA Midwest

Re: Power Antenna Repair- a few questions

Postby viper69 » 01 Sep 2010, 22:20

No there are not...none that I've detected. I certainly haven't driven by anything to get it bent either.
Volvo 850 GLT 1995

5 Speed Manual transmission

114,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual
viper69
Forum Member
Forum Member
 
Posts: 224
Joined: 27 Jun 2004, 00:41
Model and Year: 850GLT 1995

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