A dab of weatherstrip adhesive (suuggested by Lew Bailie) really does the
trick in keeping the woodruff key in place. I also ended up needing a
spacer between the fan pulley and the fan clutch - the oil drain plug
crush ring is a perfect fit.
Steve Margolis indicated it could be done without removing the radiator.
I didn't think of it until after removing the radiator that perhaps a
3/8" drive socket might fit - I used a 1/2" drive because that's the size
torque wrench I have, and there was not enough clearance. After the 3rd
time though, removing the radiator no longer seems to be a big deal.
Charlie Lincoln 1987 Peugeot 505 Liberte XN6, 123k
clincoln@SpiritOne.com 1984 245 DL, 220k
Portland, Oregon 1976 BMW 2002, 217k <- for sale
>Subject: Re: Water pump replacement botched
>Sent: 8/12/96 6:43 PM
>Received: 8/12/96 9:57 PM
>From: Steve MARGOLIS, sim1@cornell.edu
>To: Peugeot, peugeot@arqmsen.dow.on.doe.ca
>
>Charlie Lincoln said:
>>
>>In the process, as I discovered later, the fan pulley dislodged the
>>woodruff key so that it wasn't fully seated on the water pump shaft. A
>>few weeks later, the pulley was working loose and scraping against the fan
>>hub.
>
>Shortly after I acquired my 1986 505 sti, the water pump pulley started
>wobbling badly on the shaft. I figured out that the problem was the water
>pump, not the pulley, and got a new aftermarket water pump. When I put it
>all back together, I had trouble getting the pulley to seat correctly. I
>pulled the pulley off and found that the woodruff key had moved when I was
>putting the pulley on the shaft. I think I put something sticky under the
>woodruff key and tried again. This time I got the pulley seated properly
>and put it all back. But... it started to overheat on my first test drive.
>A quick continuity test indicated that when the woodruff key had moved out
>of position, it dug into the windings of the electromagnet that makes the
>fan kick in and out. The only spare hub I had was from a turbo diesel, and
>of course was a different size. So I closed the air gap to make the fan
>run all the time. It would be nice to have it work properly again, and
>someday I hope to find a fan hub. It hasn't run hot (hardly ever gets the
>needle to the middle) in over two years, but it still supplies plenty of
>heat in the upstate New York winters. Plenty of heat, that is, except on
>bitter cold but sunny days, with the sun shining on the dashboard top
>temperature sensor. That location might be a good idea in the summer, if
>the air conditioner worked, but it definitely defeats the electronic
>temperature mechanism in the winter.
>
>Getting back to Charlie's water pump replacement, I was able to do the deed
>without removing the radiator. Getting the fan shield off and on was a
>little tricky, but once that was out of the way, there was room to maneuver.
>
>Steve
>
>
>Steve Margolis mailto:sim1@cornell.edu
>Ithaca, New York Ithaca is Gorges
>
>1986 505 sti gas - 125K miles with foolish electrical problems
>1981 505 s turbodiesel - rear ended at 264K miles - driven to 275K miles
> after insurance co declared it a total loss
>1980 505 diesel - had good parts removed and the rest crushed at 150K
>1979 504 diesel - rear ended - driven about five months
> after insurance co declared it a total loss
>