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6 Blade fan question.
I just replaced my failing 3 blade fan on the passenger side with a 6 blade fan. When the fan is on it looks like the fan is making contact with the lower radiator hose going to the water pump. Whats the best and easiest way to fix this?
I'd rather not remove the whole assembly again and switch the 6 blade fan to the driver's side. Getting the shroud back in was quite the PITA. Thanks....
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There are some who call me... 'Tim'. a well set-up 1983 Guards Red 944 |
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06-21-2004, 03:41 PM
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Location: Granite Falls, WA
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This is an excerpt from TSB # 8526, dated Dec. 6, 1985.
"Replacement of 3 blade fan with new 6 blade fan: -Disconnect battery -Remove engine splash shield -Drain coolant -Replace coolant hose to water pump. This hose has a different shape and guarantees a safe distance of at least 10 mm between the new fan blades and coolant hose. If a new hose is not available, the old hose must be shortened by 5 to 10 mm on the waterpump side. -Refill coolant -Remove fan shroud and replace fan/motor -Reinstall fan shroud Note: Check installed position of fan! Plug connection must face down at an angle to the right." The next time you do buy a lower radiator hose, I'm sure you will be getting the "newer" shaped hose. You might be able to just tie the hose back for now.
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1985/1 944 Granite Red (wife's car. Iceshark is lighting her way) 1983 944 Platinum (my daily) 1985/1 Guards Red (project) |
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06-21-2004, 03:54 PM
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Thanks for the quick reply. I just checked, the fan isn't hitting the hose, but there is about 2mm of clearance. I try cutting the hose tomorrow.
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There are some who call me... 'Tim'. a well set-up 1983 Guards Red 944 |
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06-21-2004, 04:07 PM
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Zip tie
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83 944 white w/Boxster wheels Planned mods- custom leather interior, 968 antenna, soundsystem, 968 style rockers, clear sidemarkers
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06-21-2004, 04:44 PM
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Swap the fans.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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06-21-2004, 06:48 PM
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Ok, I removed the hose and cut about 5mm off of it. It worked great, there is a good 10mm between the fan blades and the hose now. I figured, I was planning on changing the coolant this week anyways.
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There are some who call me... 'Tim'. a well set-up 1983 Guards Red 944 |
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06-22-2004, 03:15 PM
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That'll work too.
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83 944 white w/Boxster wheels Planned mods- custom leather interior, 968 antenna, soundsystem, 968 style rockers, clear sidemarkers
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06-22-2004, 05:38 PM
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mine came with 6 blade fans already....i dont even hear them turn on they are sooo quiet...
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1985 944 / 2007 335i / 1987 325is / 1985 535i / 1999 528iT / 2006 X5 |
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06-22-2004, 06:47 PM
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I changed mine to an aftermarket 'flexlight' assembly. Takes a little work to make it fit but it works very, very well....bout $90.
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83 944 white w/Boxster wheels Planned mods- custom leather interior, 968 antenna, soundsystem, 968 style rockers, clear sidemarkers
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06-23-2004, 05:37 AM
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i paid $75 for the pair /shroud thru this forum, bolted them up without any clearance problems.
seems to be a clearance problem when putting the 6 bl in the 3 bl hole.
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87 951, K27/6, Almond Beige, 17" Turbotwist 87 944S, alpine white, 5sp died a violent death 84 944, silver/brown, auto, gone but not forgotten "may the force be with you" |
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06-24-2004, 11:32 AM
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does the 6 blade assembly have a different shroud than the 3?
I have the 3 blades installed and a2 6 blade motors. Was going to do teh swap, but after reading this post, it sounds as if the shroud is different??
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06-24-2004, 11:54 AM
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Quote:
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87 951, K27/6, Almond Beige, 17" Turbotwist 87 944S, alpine white, 5sp died a violent death 84 944, silver/brown, auto, gone but not forgotten "may the force be with you" |
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06-24-2004, 12:01 PM
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The shrouds are the same. The lower hose is different. The hose that was on the 86 that I got the six bladed fans off of has a much smaller diameter as it passes the fans. Also has a heavy rubber sheath on it.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! Last edited by SoCal Driver; 06-24-2004 at 02:14 PM.. |
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06-24-2004, 02:12 PM
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Ah...I see
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06-24-2004, 02:23 PM
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I used the stock shroud and ditched the flexlight one.
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83 944 white w/Boxster wheels Planned mods- custom leather interior, 968 antenna, soundsystem, 968 style rockers, clear sidemarkers
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06-24-2004, 03:57 PM
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1983 Porsche 944 2.5L
1983 Porsche 944 2.5 liter
