Geoff Raynak

Does my 69 1602 have a three speed blower ... ?

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I was never great at archaeology (or paleontology) ... but I'm trying to understand my heater/blower unit set-up ...

not just for the sake of the fan (which is in-op and needs to be rehab'd or replaced) ... but to ensure I'm using a relatively decent wiring diagram as my 'truth'

 

anyway ... here is what i 'know'

i have 3 positions on my fan switch

i have 4 terminals on my heater box

but i also have VIN#1569746

what i thought was my wiring diagram has only 2 positions and 3 terminals on box

if i look at the full-set of wiring diagrams ... VIN#s above 1571959 have a 3 speed/4 terminal blower

 

everything looks original in there ... including the detritus

 

is it possible this was just what was installed at the time of manufacturing (JUNE1969)?

or maybe a PO came in and tried to make some changes ...

the motor has electrical tape on the wires 

and it as the 'flat' retaining clips

 

 

 

may be trivial in the grand scheme of the whole project ... but just trying to make sure i don't get too many wires crossed.

if nothing else ... we can all just gawk at all the crap that ends up in the heater box ...

 

 

thanks!

geoff

 

 

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I don't know anything about your specific model, but the four positions should be off, low, med (using the resistor coils #1 and 2) and then full (without a coil) just straight to the fan. 

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thanks ...

i agree that it is 3 speed ... since box and switch are both @ 3 speed

i just have no motor to test with (since mine is DOA)

but will test when my new one shows up next week

i'm just puzzled by the wiring diagram ...

and the fact that everything looks reasonably un-altered ...

 

oh well ... i'll take 3 ... 

especially with this late oregon winter we are having!

 

cheers

 

 

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The USA owners supplement should clarify that you may have a two speed blower and not three speed as listed in the orange owners manual.

 

note I said you may have...

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that's what i thought ..... according to VIN# and diagrams and ... 

buuuuuutttttt....

 

i have a 3 speed switch

and 3-speed wiring ...

and a 3 speed 'connection' on my blower box ...

 

once i get my new motor i'll be able to confirm ... but sure seems like it's got 3 on the (heater) tree

 

cheers

 

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should have clarified ...

it is 4-position .. 0/1/2/3

and i have 2 coils in my heater box

 

i have the full manual ...

 

just posted because it seemed odd that my low VIN had what appears to be a later VIN option

 

 

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My 69 has the same number of resistor coils as my 73, but the wiring and switch configuration is different.  The fan speeds are relative to the resistance values stamped (molded) into the face of the Behr blower housing next to the resistor terminals. The Mike MaCartney restoration book shows this detail.

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2 minutes ago, Geoff Raynak said:

should have clarified ...

it is 4-position .. 0/1/2/3

and i have 2 coils in my heater box

 

i have the full manual ...

 

just posted because it seemed odd that my low VIN had what appears to be a later VIN option

 

 

Don't think your dash switch is original.  Great for adding intermittent wipers!

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so ... 

here are the connectors on the front of my heater box ...

and my switch ...

all wires correspond to 0/3 ... 1/3 ... 2/3 ... 3/3 ...

and were connected that way on the harness ... 

 

so it seems like it is a 3 speed system ...

much like the wiring diagram for VINs above 1571959

 

i'm debating the swap between the switches ...

to make a 2 speed fan and an intermediate wiper ... but i may just save that for 'down the road'

because this car is going to be converted to electric ... the heat is no longer 'free'

so i may set it up to have 1/3 = just fan ... and 2/3 and 3/3 be "low" and "high" heat from the high voltage PTC heater core

 

until then ... it will just be a mystery  ... 

 

cheers

 

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image.thumb.png.6e4dc874fda32d8f611c970905d5332a.png

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AFAIK the factory switched from two to three speed heater blowers on 1 January 1969 on both 1600s and 2002s, so your June production car should have the three speed setup. My Feb '69 production 2002 was the 40th to be fitted with the three speed heater, and your car was built six months later+++.  

 

One way to tell--look inside the side window defroster outlets (they're supposed to defrost the vent windows so you can see your outside mirror).  The factory discovered the two speed (less powerful) blower didn't have enough moxie to do the windshield and the side windows, so they plugged the side defrosters with chunks of foam.  Unfortunately someone forgot to tell Franz on the assembly line to quit doing that on 1 Jan '69, so my car came through with plugged side outlets.  I didn't figure out why they didn't work for some years until I found the foam and then learned the story.

 

cheers

mike

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i have no foam ...

but mounting evidence that it is 3-speed

 

the _only_ piece of the puzzle that does not fit is the factory-produced wiring diagram that says VIN# 1571959 and beyong

 

what-evs ...

 

i'm happy with what i have ...

and sure-as-sugar happy that i didn't have 5 rodents mummified in my heater box when i opened it!

 

thanks for helping solve the mystery 

 

 

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