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> SIX fan problems, metal on metal
Trekkor
post Dec 4 2004, 10:41 PM
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I do things...
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So, I put the new alternator in and install the fan back in it's housing. Fan spins free with no issues.

Then I put it in the shroud and tighten up the strap around the alt stand.

When I run the motor it makes a horrid scraping sound and metal shavings are a flying. (IMG:style_emoticons/default/headbang.gif)

Why? Help me.

KT
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J P Stein
post Dec 5 2004, 12:26 AM
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QUOTE(DonTraver @ Dec 4 2004, 10:04 PM)
If the alternator locating slot is not aligned with the roll pin, the alternator fan housing will not sit on the saddle properly and will be cocked, as you tighten down the strap, the roll pin will dig into the fan housing, causing it to go out of round, and then the fan blades will contact the housing, metal shavings and a unbalanced fan will result. At 7000 rpm a unbalanced fan is not a good thing.

What Don said. The fan housing is being deformed.
I think it should read....fan housing locator slot , not "alternator locating slot"
There is a timing mark on the housing....a cast in line. It should line up with the case seam...or damn close.
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Posts in this topic
trekkor   SIX fan problems   Dec 4 2004, 10:41 PM
DonTraver   Did you align the alternator fan housing with the ...   Dec 4 2004, 10:48 PM
trekkor   No. I didn't... <_< Now what? KT   Dec 4 2004, 10:57 PM
Mueller     Dec 4 2004, 11:02 PM
DonTraver   Pull it out again, I know, damn. Look for the slo...   Dec 4 2004, 11:04 PM
JOHNMAN   Is it the same fan that was in the housing? Somet...   Dec 4 2004, 11:14 PM
trekkor   Same fan, new alt. Was smooth turning until I tig...   Dec 4 2004, 11:40 PM
Dr Evil   I am soo gonna contact you Don when my finals are ...   Dec 4 2004, 11:40 PM
Carrera916   Trekkor, just wondering.....is the metal shim in ...   Dec 4 2004, 11:44 PM
Carrera916   Ohhhh wait!!! I re-read your first me...   Dec 4 2004, 11:47 PM
trekkor   Jerry, I'm running the SIX on the bench. the...   Dec 4 2004, 11:56 PM
DonTraver   If the alternator locating slot is not aligned wit...   Dec 5 2004, 12:04 AM
sixnotfour   It is posiible to overtighten the band , try backi...   Dec 5 2004, 12:04 AM
Carrera916   [FONT=Arial]Okay.... from reading your other mess...   Dec 5 2004, 12:09 AM
JOHNMAN   Is that picture how it looks as you are "bench" ru...   Dec 5 2004, 12:11 AM
J P Stein   ...   Dec 5 2004, 12:26 AM
trekkor   I've likely overtighted it. :angry: The fan ...   Dec 5 2004, 12:57 AM
DonTraver   ...   Dec 5 2004, 01:14 AM
sixnotfour   Is the fan rubbing in the housing ? Or is it rubb...   Dec 5 2004, 01:24 AM
J P Stein  
QUOTE
  Dec 5 2004, 11:06 AM
trekkor   OK, that was wierd...we were all watching Spiderma...   Dec 5 2004, 11:18 AM
SirAndy     Dec 5 2004, 01:24 PM
trekkor   I'm back. All is not lost. Broke it down again...   Dec 5 2004, 01:30 PM
JOHNMAN  
QUOTE
  Dec 5 2004, 01:31 PM
trekkor   Here is the alt'n'r face. Just a close sh...   Dec 5 2004, 01:33 PM
trekkor   You guys are the best... :trophy: Thanks for the...   Dec 5 2004, 01:37 PM


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