| Heater blower problems [message #221564] |
Sat, 07 September 2013 21:27  |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma:
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OK, trying to figure out what is going wrong with a 77 kingsley A/C blower fan.
this was just picked up by a fellow GMCer, and getting ready to make a road trek west.
the PO had just installed a new fan motor. but,
some wires had been fried...
we fired it up, and the lead to the motor melted, and some other wires fried. and when I took out the fan motor to bench test, it too was fried... up in smoke.
so installed a new fan motor, re-did the ground connection.
there is a heavy gauge red wire, that had a fusable link on it, that was burnt off. so I replaced that with a 16ga fusable link.
I removed the Noise supression capacity/coil thing from the equation, because the wires were fried now... could not find any replacement, and i thought maybe that caused some issue.
then there is a relay of sorts up high, and that was disconnected, and bypassed.
I looked at my 75 palm beach, and I connected up the wires to match, with the exception of that relay, witch really is just not at all on my 75.
now it runs good. however the heavy red wire, and the fusable link are getting hot. but not as quickly or instantly as it did just before with the burnt up new fan.
tomorrow, I am going to replace the connector off that heavy red wire, because I think it is a poor connector. and I am wondering if I should repace the fusable link with a bigger one, or a actual fuse? (my 75 has a fuse instead of a fusable link).
thoughts?
here are some pictures on my blog.
http://lqqkatjon.blogspot.com/
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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