C2 heater blower motor sketch quirks in the AIMs
In all of the C2 AIMs, the same sketch is shown of the heater blower motor. This is the sketch:
F547EF1D-0264-4EF3-93C6-7D011A469D0B.jpg
Thanks,
Gary
F547EF1D-0264-4EF3-93C6-7D011A469D0B.jpg
Thanks,
Gary
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Re: C2 heater blower motor sketch quirks in the AIMs
Gary the C1 blower motors were in the cabin so not that.
The U69 AIM pages showing the blower are certainly incorrect as they show the power connector in the wrong place. For reference, the actual connector is on the mount plate of the blower assembly as you know. But as you can see that capacitor on this one has long wires and could use some loops and some tape.
P3250007.jpg
I've not seen that tape on cars I've restored but it's very possible it was originally used. I have in fact added that tape on subsequent U69 equipped C2's I've done after noticing that AIM note years ago. Never got a deduct either with or without the tape.
However, since the AIM is wrong showing the power connector in the wrong place for Corvette, it may likely be a carryover drawing from passenger cars or trucks which may have used a different blower assembly.
Rich -
Re: C2 heater blower motor sketch quirks in the AIMs
Gary, it is correct for a 63 blower motor.
Heater Fan 003.jpg
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Re: C2 heater blower motor sketch quirks in the AIMs
Harry, good info. My 63 had aftermarket AC so I missed that.
Do you have tape on your cap?
RichComment
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Re: C2 heater blower motor sketch quirks in the AIMs
Harry,
Rich is asking if a piece of electrical (?) tape was used to loop together and constrain the excessively long wire from the capacitor to the power terminal on the motor.
GaryComment
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Re: C2 heater blower motor sketch quirks in the AIMs
Harry,
Well that explains the source of the incorrect AiM drawing for ‘64-‘67. Obviously an accurate AIM drawing was not deemed important enough to justify having it redrawn for ‘64.
Why is the cylindrical surface of the blower motor so rough under the paint? Rusted underneath the paint? Or some sort of insulation coating for noise or heat?
GaryComment
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Re: C2 heater blower motor sketch quirks in the AIMs
Rich,
That photo you posted is one of the common that is easily findable via a Google search. Just a couple of comments. Since I started looking for such photos a couple of days ago I’ve seen several that have the capacitor oriented differently, but attached using the same screw location. Several examples I’ve seen have the capacity rotated about 120 degrees counterclockwise about that same screw, such that the capacitor body hugs close to cylindrical surface of the blower motor. That aims the power wire from the capacitor downward and to the right, making even more unneeded wire length before plugging into the motor power terminal.
I also note there is no white inspection label on that blower motor.
GaryComment
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Re: C2 heater blower motor sketch quirks in the AIMs
Yes, all 63 blower motors were covered in a think undercoating like substance.
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Re: C2 heater blower motor sketch quirks in the AIMs
Harry,
Interesting. Factory designed ugly coating. Or beauty is in the eye of the beholder.
GaryComment
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Re: C2 heater blower motor sketch quirks in the AIMs
Gary that photo I posted was one I took on 67 #4136 that I worked on about 10 years ago. Right, no label when I took that photo.
The position of the cap was off as I recall too.
RichComment
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Re: C2 heater blower motor sketch quirks in the AIMs
Rich,
What would you do differently with the position/orientation of the capacitor?
GaryComment
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Re: C2 heater blower motor sketch quirks in the AIMs
Just that the cap should have been rotated 90* CW to be more consistent with the AIM.
But here's a different '67 before I restored the engine bay. In my opinion it was originally configured with no tape on the extra cap wire and was left hanging from St Louis. At that time John Hinckley commented to me that it looked pretty original to him too. Except maybe the black overspray from a later time by someone.
p1270028.jpg P1270029.jpg P1270036.jpg
While cleaning the blower motor and refinishing one can see the date code on the flange. "1067"(apx 7 o'clock in 1st photo below).
Note the "10" is offset from the "67". It's a March 30 car. If the dating was a week-year format, week 10 would have been mid March so it may be the original motor assembly.
P7250005.jpg P7250006.jpg P7250060.jpg
P7250005 - Copy.JPG
As I recall I added the motor label later but before judging. Not shown here.
P7250063.jpg
This is however just a sample of a "no tape" scenario. My gut tells me St Louis wouldn't have bothered with taping that capacitor but maybe there are some original cars out there disproving that opinion.
RichComment
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