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Posted by: euro911 Apr 15 2011, 12:00 AM

I didn't get a complete car when I bought my '75. Have acquired most of what was needed, but I'm finally trying to get heat into the car (just in time for summer, good timing, eh?) finding out a few heating items are needed.

This is what it looked like when purchased

Posted by: euro911 Apr 15 2011, 12:14 AM

I recently disassembled the fan, cleaned and painted it, ready to install it.



It only has a single outlet (unlike the one on my wife's '71 - with two outlets) and I don't know if it uses a 'Y' connector to get fan air into the two j-tubes?

Posted by: Scarlet75 Apr 15 2011, 05:33 AM

IIRC later MY 75-76 had the Y connectors added again. Mine is an earlier MY 75 and doesnt have it. I know they are available from the usual places. Hope this helps.

Posted by: type47 Apr 15 2011, 05:42 AM

I think MY75-76 did have the "Y" for hoses to both sides of the motor but will defer to experts as I can't tell from the PET 202-15 about the blower motor and hoses. At the good Dr's site you probably could find some diagrams of the parts and info in their catalog...

Posted by: jim_hoyland Apr 15 2011, 06:36 AM

Mark,

I see the Y connectors sold at the G & R almost every year. I removed my heather fan after installing SS heat exchangers. Within 2 minute of starting and pulling back on the red heater lever, heat coming into the cabin. Doesn't leak when closed.

Posted by: SLITS Apr 15 2011, 07:01 AM

Factory decided it didn't need both exchangers, so they went to a single feed. Splitter is available to feed both of them.

Posted by: 76-914 Apr 15 2011, 07:57 AM

So you only need one, huh? No wonder mine works so well. Yes, they do have a splitter that mounts on the fan shroud, itself. Contrary to Jim's car mine does not leak warm air into the cabin.

Posted by: Sleepin Apr 15 2011, 09:27 AM

The 75 and 76 exhaust was just that much more efficient.

Plenty of heat just using one side though.

Posted by: jim912928 Apr 15 2011, 09:35 AM

my 75 had the Y connector. Should be able to get one on here if you do a WTB in classifieds...just saw one on ebay also....here is the link:

http://cgi.ebay.com/ebaymotors/Porsche-914-heater-blower-branch-neat-item-hot-heat- _W0QQcmdZViewItemQQhashZitem35a5f39f41QQitemZ230417473345QQptZMotorsQ5fCarQ5fTru
ckQ5fPartsQ5fAccessories#ht_500wt_749

Posted by: euro911 Apr 15 2011, 10:53 AM

The famous 'Bat Mobile' has early style S/S H/E, hence two j-tubes. I thought about only hooking up one side and capping off the other, but I remember someone else telling me that it could cause overheating on the capped side.

Thanks for all the input ... I'll keep me eyes open for a 'Y' at G&R

Posted by: Sleepin Apr 15 2011, 12:14 PM

Let me know Mark, iffin you really need one and if I can find my extra, it is yours.

Posted by: Drums66 Apr 15 2011, 12:24 PM

QUOTE(euro911 @ Apr 14 2011, 11:14 PM)

I recently disassembled the fan, cleaned and painted it, ready to install it.

It only has a single outlet (unlike the one on my wife's '71 - with two outlets) and I don't know if it uses a 'Y' connector to get fan air into the two j-tubes?

Posted by: Dave_Darling Apr 15 2011, 03:52 PM

The 70-72 fan has two separate outlets, on opposite sides of the shroud.

The 73-74 fan has a single outlet, which was ducted to the left-side exchanger only. The top of the J-tube on the right side was capped off with a plastic cap and a hose clamp.

The 75-76 fan has a single outlet, but that outlet has a Y fitting on it. The outlet replaces the part you can see in the photo that has a square inlet and a round outlet; on the later fans it has two round outlets.

It sounds like early 75s used the 73-74 style of fan, which presumably means the right side J-tube is capped off. You can do that pretty easily (I think a spray paint cap fits well) as a permanent solution or as a temporary one until you get the Y.

--DD