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09-13-2008, 08:12 AM
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Join Date: Feb 2004
Location: Milford,
CT
Cobra Make, Engine: BRG ERA street car w/428 PI, Sunburst wheels, undercar exhaust, original interior, no philips head screws!
Posts: 650
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Not Ranked
Wiper Motor cap question
My wiper motor has a cap on the bottom. Seems to be to keep the internal fluid from leaking or just maybe a shipping cap. I took it off and wiped up the oil. Is this a permanent fixture or can I take it off permanently?
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09-13-2008, 08:21 AM
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Join Date: Jan 2008
Location: Williamsport,
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Cobra Make, Engine: Kellison Stallion 468 FE
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oil in an electric motor? has a little grease in it. shouldnt be spewing out
unless its cracked.
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09-13-2008, 08:21 AM
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Join Date: Nov 2003
Location: New Britain,
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Cobra Make, Engine: Size 10 Feet
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That's something new...
Keep the cap on. My guess is that it is supposed to be an oil reservoir for the bottom bearing.
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09-13-2008, 09:01 AM
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by FWB
oil in an electric motor?
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It helps dissipate the massive amount of heat from the wiper motor. That's a little known reason as to why Cobras tend to overheat in the rain; it's the additional heat load gain from the wiper motor. 
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09-13-2008, 09:35 AM
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Join Date: Nov 2003
Location: New Britain,
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Is that why I break out into a sweat every time I drive one in the rain? 
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09-13-2008, 10:02 AM
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Join Date: Feb 2004
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Cobra Make, Engine: BRG ERA street car w/428 PI, Sunburst wheels, undercar exhaust, original interior, no philips head screws!
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Bob:
I got the motor from you guys so...I've had TR6's and had the exact same motor setup and never have seen that cap. Best I can describe it is looks like a packing cap...it looks crappy which is why I want to take it off. I know, I can do whatever I want but I'm just trying to get the official answer.
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09-13-2008, 12:32 PM
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Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by 428street
I got the motor from you guys so...I've had TR6's and had the exact same motor setup and never have seen that cap. Best I can describe it is looks like a packing cap...
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Is this what you're talking about?
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09-13-2008, 01:00 PM
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Join Date: Feb 2004
Location: Milford,
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Cobra Make, Engine: BRG ERA street car w/428 PI, Sunburst wheels, undercar exhaust, original interior, no philips head screws!
Posts: 650
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Not Ranked
Thats the cap for sure.
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09-13-2008, 02:25 PM
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,017
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As you can see, Doug left mine on. There shouldn't be a lot of oil in there, but there should be some. From page 50 of the ERA manual:
Quote:
Put 1 or 2 drops of oil in the lower bearing of the armature
housing. Excess oil will contaminate the brushes later on.
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Now it's possible that the modifications that Doug does to the Wiper Motor require that little cap -- you can see from the manual that the wiper motor assembly is no simple issue. Bob should be able to get you an answer pretty quickly on what that little cap does.
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