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Post by Wyn on Sept 27, 2011 18:41:29 GMT -5
I need help finding a new type 3 fan housing. I need to modify the housing to allow for the installation of thr AC compressor and a new altenator. Both units will use a serpentine belt. I found a machine shop that will convert my 'V' belt crankshaft pulley to a serpentine pulley.  I need to cut the top open and extend it to the right and tack in new sheet metal to allow coverage of the AC compressor, but with the bottom of the housing all rusted there is no strength. The 4 mounting holes are all very seriously rusted. I may just tape up the rust and use the housing as a mold for a fiber glass and carbon fiber housing. But I rather use a metal housing.  Wyn |
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Post by smyrnaguy on Sept 28, 2011 8:52:39 GMT -5
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Post by Wyn on Sept 28, 2011 10:26:41 GMT -5
Thanks, I just sent him an email for it.  I had just looked the other day and missed this one, but I also see he updated his ad on Sunday. The search engines forget everything after it sees you want VW. This is called an Air Intake Housing. But I get all kinds of parts for carbs and filters and intake manifolds. Wyn
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Post by Wyn on Sept 28, 2011 23:08:33 GMT -5
What I need is a shroud shape like this, it would be ideal. What I'll do is take sheet metal same size as the housing and square bend the corners and tabs then spot weld the whole right side to the housing assembly. It wont look pretty, but at should work.  Wyn |
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Post by horen2tas on Oct 5, 2011 12:16:12 GMT -5
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Post by Wyn on Oct 5, 2011 23:48:32 GMT -5
A little confusing info, the Type 3 engine has two fans and fan housing. There is a fan in the crankshaft pulley and a housing to cover it and Generator belt. This fan is basitly a pre-fan and its housing is to keep from drawing the air from around the engine compartment and to make sure the engine gets fresh ducted air from the outside of the car. Then in front of it there is another fan. This is the main cooling fan and its housing directs the air flow through the engine and into heat exchangers for cabin air. The fan inlet housing is what I needed. Today I just received the fan housing from fellow in Arizona. The housing is in very good shape no rust in the bottom of the housing. ;D Now I need to figure how to modify it to allow a serpentine belt to the AC compressor and keep it sealed from the air from around the engine. Thanks for the leads Wyn |
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geddes66
Junior Member
Now I am an instructor at the RTS-M, Camp Roberts CA. Teaching new Army mechanics.
Posts: 87
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Post by geddes66 on Nov 28, 2011 22:12:19 GMT -5
Here is how I handled the T-III fan. Clearly, I need to work on the cover. The aluminum hides all belt issues. As far as I concerned, a serpentine belt could be put on the "pulley fan". 1) Find a serpentine pulley slightly larger than the outside of the pulley fan. 2) Put the pulley fan on a lathe and machine the edge to a set diameter. 3) Cut the found serpentine pulley such that it will set up an interference fit and press it onto the freshly machined pulley fan edge. 4) Assemble the two parts using a hydraulic press. Note, a machine shop may be required for steps 2,3 & 4. Another issue that may occur is some sort of reduction will probably be required. The original VW used a separate pulley that was very small and mounted in the center such that the engine turned about twice the RPM's of the compressor. Attachments:
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