looks like porsche didnt finish part of the heating system on the 73'

[shorty10]

well since its winter and all I decided to put the heater hoses on the 914 since the old one were tore up well i replaced them and turned it on ... i put my fingers near the defroster and dash vent and could only feel a bit of a breeze hot though why a bit are they all like this? as of now and when they came out?
Another thing the right side had no breeze at all (defrost vent)
well i looked underthe car and everything was there right and left side so I poped the trunk and I saw that the blower was hooked up to the left heat pipe the right one near the battery had nothing hooked up to it.
I looked at a lot of posts and found outthat the 73' was made with the right side not hooked up ....why excuse my language but what kind of half ass job was that,so do i need to buy a new heater blower? and 2 at that since the one in the car now sounds great but isnt working as it should
also wouth there be any thing id need to clean out should i stick a leaf blower under the car so it can blow out any thing in the pipes? thanks to all

[jamcleod]

not sure about why the passenger side wasn't hooked up, maybe if both sides were hooked up, it put out too much heat

anyway, there is an adapter kit to attach a "2-out" connector to the blower motor and a long tube to the passenger side "J-pipe" to provide heat. i think this is called a "75-76 adapter" as this is how it was done with 75-76's. may be wrong but i saw this offered in the AA catalog. not that i'm suggesting going to AA... just using the information they so nicely provided.

[Scooter311]

Yo Shorty
Yeah, how bout that, my 73 is the same, three cheers for that brilliant design. Jamcleod is right, you can get an adapter and a little xtra hose, or you can get another complete blower assembly, mount it on the pass side, and splice it into the old blower wires. I read somewhere where that was done, and it was a tremendously good idea.
Then, you can paint the motor housings silver and the slack-jawed masses will think it's a twin turbo.
Ciao

[mikester]

Yeah, My '74 is the same way - I just hooked up a dual outlet heater blower motor tuesday. Now I have heat on both sides - right up until the fuse blew....

[shorty10]

Scooter311 do you get as much heat as i do? and where do you get another blower or one like it that doesnt cost a thousand dollars

[Scooter311]

Yes, if by "as much heat" you mean "almost nothing". Seeriusly, I think it's HOT enough, but there's really not much force from that anemic hairdryer they stuck in there. (Maybe they can be rebuilt or rewound?) If there were 2, at least both sides would have "heat" and your passenger won't get cold and angry.
I'm getting mine from a parts car, but if you look in the "for sale" section, you'll find them frequently. Someone reading this now may even have one they could sell you cheap. I've seen them sell for 15-20 bucks.
When my "heat" really gets going, it comes out from under the dash vent directly onto the seat, sweatin' up my garbage.

Any pix of your car?

[Dave at Pelican Parts]

The passenger's side heat exchanger should be hooked up on the 73-74 cars. The heater blower is not hooked up to the passenger's side exchanger, but the engine cooling fan still is. You should get air movement from that, even if the blower is off.

With the splitter (used on the 75-76 cars) hooked up to the outlet of the fan, and a hose running across to the passenger's side "J-tube", I get a pretty decent amount of heated air out the vents in my car. The SSIs definitely help also.

Note that the early fans (70-72) had two outlets on opposite sides, and the fan itself mounted on a bracket on the engine's fan shroud.

--DD

[Scooter311]

Howdy Dave
You guys all have me thinking (there I go working without tools again, wooo) - Is it possible that these little blowers get feeble and old too, and should be rebuilt/replaced? It would seem that by by splitting the single motor would get you less pressure/volume or whatever you call it, but if others are getting decent breeze, maybe some of ours are kaput.
Also, what difference do the SS EX's make? Maybe most non- stainless ones are loose or rusted out, and losing pressure? I know mine are pretty decent and clean, so how could that be?

-
Jeff

[Dave at Pelican Parts]

It is possible for any electric motor to wear out. It is also possible for the mechanical part of things to wear or start to break. (Does the fan spin freely? All the blades there?)


In my case, the stock exchangers had visible holes in the "wrapping" that holds the air against the exhaust pipes. Switching to SSIs cured that. Better heat, no air escaping out the holes, and the window doesn't fog up when I go through a puddle anymore!

I don't remember if SS is a better or worse (or equal) conductor of heat than mild steel is.

--DD

[shorty10]

scooter looks like we both have the same problem so you going to hook up a 2nd blower to the passenger side? tell me how it goes ive been thinking about doing that as for pics heres a link

I found under body rust is it bad??? # 2

[Scooter311]

No prob, I scored another digital camera from a photogeek friend, and I'll have pics of the parts when I get them - crossing my fingers for the end of the month. Also, I'll take the motors to a local guy who rebuilds electric motors/pumps etc, and see what he says.
I'll be sure to post progress, I like to yak on about everything.
I remember your car from ebay, I think? Nice looker!

[shorty10]

lucky me i got him to sell it to me right after he put it on we made a deal and i got it . lucky since the 2nd guy in line for it was offering 8 grand and he wanted to fly in and pick it up

[Jim Savage]

Add the splitter like Dave seez. Much cleaner look and easier to install. Picked mine up at swap meet for $5. (73 also) I think it might be available from VW's. Not sure. I get good heat out of both sides.

But maybe if the right side wasn't hooked up.....some critter might have made a home in there to block the flow. Maybe check the flow with a blower type shop vac first.

Jim