Noisy window motor

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ard126k
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Noisy window motor

Post by ard126k » Mon Oct 05, 2020 8:38 pm

One of my window motors makes a noise like 2 cats in a border dispute. Is there an easy way to lubricate these, given that they're dipped in what looks like bitumen?
Alex.


1971 SE5, 1977 SE6a, previously 1982 GTC

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DARK STAR
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Noisy window motor

Post by DARK STAR » Tue Oct 06, 2020 6:56 pm

Which car Alex ?
I had a stock of GTC electric window mechanisms (all sold), they were shiny bright with no sign of bitumen :shock:
Perhaps that is the problem ...
If you're sure it's the motor and not the mechanism they are easy to strip down and lubricate.

Not directly related (motors and mechanism are different) on NOS SE5a windows I found the grease had turned to sticky toffee.


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peter freeman
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Noisy window motor

Post by peter freeman » Tue Oct 06, 2020 7:09 pm

I drilled a small hole in the gearbox and fed some silicone lubricant through it - mine are black as well. They can be taken apart if all else fails - the covers are held in place with bent tabs.



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Noisy window motor

Post by DARK STAR » Tue Oct 06, 2020 7:26 pm

Actually, now I have looked, the motors are black - but still no sign of bitumen ...
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Chris Johnson
RSSOC 1979> Rhubarb SE6a V8 1979-1997 Dark Star Coupé 1989> Scimitar France 2010> Vert Soleil GTC 2014-2018
Scimitar France Website site Scimitar EUROPEEN
On the road I don't drive fast, but I don't slow down for corners
In competition I drive very fast, but not always on the track ...

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scimjim
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Noisy window motor

Post by scimjim » Tue Oct 06, 2020 7:34 pm

All of the motors I’ve removed have been sealed with a bitumen type substance.


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ard126k
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Noisy window motor

Post by ard126k » Tue Oct 06, 2020 8:24 pm

The motor's in the 6a but in fact I think they will be much the same in all the 6's and 8's.
I've heard this kind of noise before in wiper motors and it can be cured by popping small a hole in the bearing housing opposite the output shaft. Has anyone tried this on these little motors? I see there's an adjusting screw for endfloat on the gearbox, I'm thinking of pushing some grease in there but I don't think that's where the noise comes from.


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peter freeman
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Noisy window motor

Post by peter freeman » Tue Oct 06, 2020 8:32 pm

This motor is common for all Scimitars after the 5s - same motor in our SS1 and Sabre and MB. When SD1 s were in plenty in scrap yards they were a good source of spares and replacements



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Stornoway Grey
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Noisy window motor

Post by Stornoway Grey » Thu Oct 08, 2020 3:49 pm

The motor housing came apart for me (SE6A) and I lubricated both window motors earlier this summer. The black plastic coating was pealing off anyway - the housing was in two halves with a clip bent over to keep them tight shut together. I just broke the black plastic coating, bent back the clip and gently prised the housing apart revealing all the workings.



ard126k
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Noisy window motor

Post by ard126k » Sat Oct 10, 2020 7:58 pm

I've opened up the motor and oiled/greased as seemed appropriate. All back together and back in the car but the noise is different but no quieter. So I think I'll head off to the 'wanted' section to post an ad...
Thanks for all the advice!
Alex.


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peter freeman
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Noisy window motor

Post by peter freeman » Sat Oct 10, 2020 8:02 pm

Did you add oil/grease to the gearbox



ard126k
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Noisy window motor

Post by ard126k » Sat Oct 10, 2020 8:06 pm

Oh yes! What I thought was a pile of dust in one corner turned out to be the old grease!! Might have a play with the shaft endfloat when I feel stronger.


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Oldconn
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Noisy window motor

Post by Oldconn » Sat Oct 10, 2020 9:09 pm

Try Rimmer Bros, they were selling NOS rear window winders for the SDI £48 last month . The mechanism won't help you, but at that price you get a NEW motor - if they have any left.


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ard126k
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Noisy window motor

Post by ard126k » Mon Oct 12, 2020 9:52 pm

I think I may have done it, here's the complete and utter story so far, in case anyone has trouble in the future-
The motor case has an upper and lower cover, they're held on by two little tabs (yellow)and a tongue which locates under a lip (green) on the gearbox casting. All this is covered (on mine anyway) with some kind of sealant that needs to be peeled away.
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The gearbox is held to the motor by one screw and one nut
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Removing the gearbox reveals the spherical(ish) bearing which in spite of my earlier efforts oil hadn't reached-
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and behind that is a felt ring which is either a seal or something to hold oil?
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Exploded view-
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At this point I tried the motor to see if the noise was coming from it or the gearbox. The noise was still there but as I was holding it (carefully!) one of the magnets moved slightly and the noise stopped! Result!! It was the one on the rusty side of the motor, I've no idea how it's supposed to be fixed but I lined it up with a feeler guage and dribbled some superglue along the joint. It seems to be holding after I've lubricated everything that moves and got it back into the door. The glass still rises a bit slowly but I'm hoping that the graphite powder will ease things over time.


1971 SE5, 1977 SE6a, previously 1982 GTC

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DARK STAR
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Noisy window motor

Post by DARK STAR » Tue Oct 13, 2020 9:01 am

Well done Alex - and what a superb "how to", it should be archived !


Chris Johnson
RSSOC 1979> Rhubarb SE6a V8 1979-1997 Dark Star Coupé 1989> Scimitar France 2010> Vert Soleil GTC 2014-2018
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On the road I don't drive fast, but I don't slow down for corners
In competition I drive very fast, but not always on the track ...

ard126k
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Noisy window motor

Post by ard126k » Tue Oct 13, 2020 5:12 pm

:oops: You're too kind


1971 SE5, 1977 SE6a, previously 1982 GTC

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