Alternator Questions
02-11-2002, 11:08 AM
#1
Rennlist Member
Thread Starter
Alternator Questions
My 951 is missing the cooling hose that runs to the rear of the alt. What is the I.D of that hose??
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02-11-2002, 11:13 AM
#2
Rennlist Member
Thread Starter
I would check it myself..........but she is in storage and I can't see her until the weekend!
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02-11-2002, 12:27 PM
#4
Nordschleife Master
It is 60mm. 2 3/8" should work also but that is a hard ID to find without doing a lot of calling around.
I don't think I would get the stock Porsche one because it is flimsy and has an internal steel wire coil which likes to rust and break and cut through the hose.
I don't think I would get the stock Porsche one because it is flimsy and has an internal steel wire coil which likes to rust and break and cut through the hose.
02-21-2002, 10:50 PM
#6
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I would guess there are a few 944's out there without this hose to cool the altenator diodes and if it is missing or all crushed you will risk altenator failure. Buy a new one and get it in there.
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02-22-2002, 10:26 AM
#8
Three Wheelin'
I think this hose is a factor to long alternator life. Mine was missing (along with all starter motor heat shields) and I found a size to fit at Pep Boys. It was those long hoses for air intakes. They had many different sizes. I found one with the correct I.D. and cut it to length and used hose clamps. $10
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02-22-2002, 12:31 PM
#9
Nordschleife Master
Using an air intake hose is fine, as long as you get the correct material. Some of those air filter hoses are made out of a sort of paper/cardboard. This type won't last too long because a fair amount of water gets into and on the hose. This water is what also kills the stock hose which has a mild steel spring in it that rusts, breaks and cuts holes in the hose.
A working hose and heat shield does two things: extends alternator life by keeping it cooler (you can kill the alt in a weekend of hard driving without the shield) and also increases the alternator output and efficiency by lowering the operating temperature of the diodes and voltage regulator.
A working hose and heat shield does two things: extends alternator life by keeping it cooler (you can kill the alt in a weekend of hard driving without the shield) and also increases the alternator output and efficiency by lowering the operating temperature of the diodes and voltage regulator.