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-   ERA---Speak with Bob Putnam (http://www.clubcobra.com/forums/era-speak-bob-putnam/)
-   -   Pusher fan refresh (http://www.clubcobra.com/forums/era-speak-bob-putnam/142812-pusher-fan-refresh.html)

kevins2 09-26-2019 11:17 AM
Pusher fan refresh
 
One of my pusher fans was running erratically and sometimes not at all. Wiggling the wires where they go into the fan motor would cause it to run so I assumed it was a loose wire. When I opened up the motor I discovered that wasn't the problem - the wires were well fastened. The problem was an accumulation of fine dust from the brushes wearing and causing a poor connection with the commutator. Wiggling the wires where they enter the motor also wiggles the brushes and the fan would run. As a frame of reference, I have just over 15,000 miles. So, cleaned the motor and resurfaced the commutator, which is worn and will need to be replaced at some point. The brushes have about 20 - 25% left. Motor now runs well.

There are no markings on these motors. Bob, do you have a part number for these motors or even for the brushes or commutator/armature?

Kevin

RockBit 09-26-2019 04:16 PM
Kevin:

I have been thinking about adding the pusher fans to my car. I assume yours were supplied by ERA, correct?

How often do you run your fans? Do they come on with temperature or are they on all the time?

Thanks

kevins2 09-26-2019 04:30 PM
Yes, they were supplied by ERA and come on and off with a temperature sensor. There is also a dash switch to turn them on manually (in the off position they still come on with temperature) but I've never had overheating problems so haven't needed to do that.

Kevin

patrickt 09-26-2019 05:29 PM
Quote:
Originally Posted by RockBit (Post 1467052)
Kevin:

I have been thinking about adding the pusher fans to my car. I assume yours were supplied by ERA, correct?

How often do you run your fans? Do they come on with temperature or are they on all the time?

Thanks
As originally installed by ERA, the pushers come on at the same time as the puller. But, you don't need them most of the time. The better solution is this: http://www.clubcobra.com/forums/era-...ly-though.html

strictlypersonl 09-27-2019 05:07 AM
The motor is from Grainger. Dayton 3LCH7. Amazon also has them .

kevins2 09-27-2019 06:27 AM
Thanks Bob, much appreciated.

RockBit 09-27-2019 07:38 AM
Quote:
Originally Posted by kevins2 (Post 1467053)
Yes, they were supplied by ERA and come on and off with a temperature sensor. There is also a dash switch to turn them on manually (in the off position they still come on with temperature) but I've never had overheating problems so haven't needed to do that.
Thanks Kevin.


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