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Join Date: Jan 2005
Location: Crossville, Tenn
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"Plumbing" for heat exchangers

My 1974 2.0 has an electric blower in the engine compartment with one tube connected to the driver J tube. The passenger J tube has a cap on it above the engine tin. The blower has only one outlet. Didn't the 914 blow heat in both sides? I realize air came in from the crank driven fan, and the electric was a "booster".
My car is reasonbly un-molested, but I am not clear on this aspect.
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Old 03-27-2005, 09:09 AM
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I could very well be wrong on this, but I think only one year's production, the 73's, were equipped with a splitter at the booster fan, with hose feeding to both sides. There are parts available of course, to convert the one sided set-up to dual.

Ed
Old 03-27-2005, 10:21 AM
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If you want to convert to having the blower split between both sides, it can be done with parts found locally for maybe $35 total. E-mail sbomeli@virginia.edu if you have further questions or want pictures of the setup I just did on my car. Steve
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Old 03-27-2005, 01:52 PM
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The 70-72 cars had a fan that had two outlets. They changed to a single-outlet fan for the 73 model year, and ran the hose to only the driver's side heat exchanger. For the 75-76 model years, they put a splitter on the fan's outlet, and ran hoses to both exchangers again. So the 73-74 model year cars were the ones that had a capped-off J-tube on the right side exchanger.

You can fake up a splitter or Y from PVC plumbing parts if you are at all motivated. There are also other ways to go; some of the late-style fans had a detachable splitter and you can swap that over to your fan. Or you can just get the late-style fan.

--DD
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Old 03-27-2005, 02:51 PM
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Quote:
Originally posted by Dave at Pelican Parts
So the 73-74 model year cars were the ones that had a capped-off J-tube on the right side exchanger.
--DD
Dave,
My '74 has two hoses instead of one, maybe that was a mid '74 change? Of course that doesn't mean that a PO hadn't made that modification and it came from the factory with only one...

Thanks,

Kevin
Old 03-29-2005, 12:11 PM
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Bowman 74, can you post a picture?
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Old 03-29-2005, 01:23 PM
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Quote:
Originally posted by orange914jeff
Bowman 74, can you post a picture?
I'll look at snapping one tonight. Basically the fan has a single outlet with a Y splitter and then two hoses coming off of it. It is the same part shown here on the PP catalog: http://www.pelicanparts.com/catalog/images/exhaust/914_blower_motor_hose.JPG

Thanks,

Kevin
Old 03-30-2005, 05:08 AM
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Kevin, That is the set up from the 75-76, some one added that. to your 74. Also on the 70-72 the blower was mounted in the center over the impeller, and on the 73-76 it was mounted on the left hand side of the engine bay.
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Old 03-31-2005, 03:14 AM
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Quote:
Originally posted by ruddyboys
Kevin, That is the set up from the 75-76, some one added that. to your 74. Also on the 70-72 the blower was mounted in the center over the impeller, and on the 73-76 it was mounted on the left hand side of the engine bay.
Well good news for me then!

Thanks,

Kevin
Old 03-31-2005, 04:21 AM
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