83 Radiator fan replacement

[356robo]

I've got an early 83 944 with a bad radiator fan. Will a later 6 blade system bolt in?

Thanks in advance,

Rob

[smokin_944]

If you have the 2 fan setup, it will fit.

[Crazy Horse]

I also have an early 83. I recently upgraded both fans to the 6-blades. They bolted right in.

[bearone2]

i did shroud and fans on the old '84na. check the clearance on the lower radiator hose as there are two hoses, one fits, one doesn't.

on mine the connector could go either way on both fans and initially, i had one fan turning backwards, pushing rather than pulling air and it tried to overheat.

fwiw:
i did it on ramps, out from the bottom.

[mattdavis11]

You won't have any problems. Do yourself a favor, clean the exterior of the rad and condenser while at it. Simple green or similar, then spray water followed by air towards the front. Comb the fins if you can.

[smokin_944]

Originally Posted by bearone2

i did shroud and fans on the old '84na. check the clearance on the lower radiator hose as there are two hoses, one fits, one doesn't.

on mine the connector could go either way on both fans and initially, i had one fan turning backwards, pushing rather than pulling air and it tried to overheat.

fwiw:
i did it on ramps, out from the bottom.

I don't know how the connectors could go both ways... See the pics.

[bearone2]

you have no vehicle info, what's this a pic of, early/late fans?

your not the op, mine did with no key way, i offered it as a suggestion.

[smokin_944]

Actually that is an early fan, but the receptacle is identical on both early and late. I just went to check, 1 minute ago...lol

[bearone2]

obviously they're not all the same because neither connection in the late shroud i installed had the key way or i wouldn't have been able to slide it in wrong and have the fan push instead of pull.

[smokin_944]

Obviously they are the same, the connectors from the harness haven't changed, you probably just forced the connector in. Now pay attention and learn something. First look at the harness connector end. Notice the keyway,lol. And the offset for the 2 pins.

[smokin_944]

Excuse the darkness due to the engine bay, but my 6 blade fans are in their spots. This pic shows the harness connector and the receptacle on the 6 blade fan (Porsche number 944-624-021-03-M14). Notice the keyway and the offset of the 2 pins in the receptacle. Nuf said.

[bearone2]

what is it you didn't understand about posts #4 & 9.

the key way makes for one-way to connect so how do figure the fan was turning backwards/pushing air, until i switched the connector?

both connectors were rounded on one end, not square like your pics and neither connector was forced on but a nice snug fit and never backed out after the swap to 6bl fans/shroud.

i traded away the '84 for the '87944S, in the sig, in dec '03, so i don't have any pics.

why are you so hardheaded on this, i explained what happened and have heard other folks mention over heating and they had one or both fans turning backwards.

how do the fans ever run backwards with the key way? certainly not everyone is forcing the connectors.

[smokin_944]

I knew you didn't have any pics...lol... But seriously folks, If you use stock Porsche parts, there aren't many possibilities for going wrong. Yes, it is possible to force the connector despite the keyway, but it isn't likely. The male pins will bend. As far as the connectors go, anything that doesn't look like the pics is not OEM Porsche. There are NO ROUNDED ON ONE END PORSCHE CONNECTORS for the 944. Period. Unless its a homemade job or borrowed from another type of car. Sorry bearone2 but you're the guy that said that the cooling fan on an early car didn't run with the car shut off and the key out. That's why I know your knowledge of early cars is not so good. Oh yea, you said that in this forum IIRC. Still want to keep going genius?

[bearone2]

sorry sport but the '84 ran with the fan on/key off, when it was hot to keep from bursting hoses, just like the later models, when i swapped the 6bl fans/shroud.

i posted what happened to me, you've been posting since july '09 and seem to be full of yourself.

have a grade schooler show you how to add info about what you're driving, it'll give you some credibility.

[smokin_944]

the fans on my old '84na wouldn't come on after turning the key off until i replaced with 6b fans/shroud.

the "fans on" after key off came with later models/6bl fans because they were bursting hoses.

Remember this, sport?? You don't even remember what you post. Porsche and Clarks said one thing, bearone2 said different. The fans on did not come with later models like you said, it was always there. What happened to you probably happened cause you were wrenching the car...lol.. I use sources to back what I say, you threaten and do what you do best... But never, can you back what you say. Even a grade schooler knows to use REAL sources...Anyway, anyone that followed the threads know where you are at, all good from where I'm standing. Smiles everyone!!!

[AKCJ]

1. Smokin - don't be so rude on this forum. This is a friendly place.

2. To the OP - Yes, you can put the 6 blade setup on in place of the old 3 blade. I did it on my 83 and it worked well except for the the pass side fan hitting the lower rad hose. I cut about an inch off of the hose on the water pump end to gain clearance but even after that the fan cut into the hose. I found it just before it went all the way through. My case is probably worse than most because of the bent radiator (thanks to the PO).

3. Bearone2 - in post #4 above you mention using a different lower rad hose. On Pelican I see there are several hoses listed. I used the top one (237-05-M101) which is the only one shown for an 83. Which one of the other hoses would work best? Probably 07-M101 or 04-M69 would work? I'm not satisfied with my current setup because I had to cut off so much of the big end.

[bearone2]

Originally Posted by smokin_944

the fans on my old '84na wouldn't come on after turning the key off the "fans on" after key off came with later models/6bl fans because they were bursting hoses.

Remember this, sport?? You don't even remember what you post. Porsche and Clarks said one thing, bearone2 said different. The fans on did not come with later models like you said, it was always there. What happened to you probably happened cause you were wrenching the car...lol.. I use sources to back what I say, you threaten and do what you do best... But never, can you back what you say. Even a grade schooler knows to use REAL sources...Anyway, anyone that followed the threads know where you are at, all good from where I'm standing. Smiles everyone!!!

read the last 7 words of that post.

"until i replaced with 6b fans/shroud".

fan didn't come on with key out of ignition with 3bl fans but did with 6bl, that's why i changed to the later model fans, for the added cooling after removing the key.

you read too much between the lines, don't break your arm patting yourself on the back with knowledge you claim to have.


i've been dancing here since '03 with the '84na, then the 87944S and then the 951 so it's not my 1st rodeo.

get that grade schooler to help putting up some info about what you're driving.

[earlr85944]

FYI: I have replaced early fans that do not have the late connector, they have 2 separate spade terminals allowing for reverse connections

[bearone2]

thanks, maybe smokin_944 can learn something from this exchange.

[AKCJ]

Originally Posted by earlr85944

FYI: I have replaced early fans that do not have the late connector, they have 2 separate spade terminals allowing for reverse connections

Yep, that's the way mine was.

Bearone2 - any ideas on the hose question above? Thanks.