Need advise how remove water pump pulley

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Surfbeamer

Need advise how remove water pump pulley

Post by Surfbeamer »

I am trying to rmove the pulley from the water pump off a 1978 Spider. I removed the 3 bolts on the pulley face and I was hoping it would come off. Tried penterating oil incase it was rusted. Wont budge. So i suspect i need a puller ... This is not mentioned in the Haynes manual. Can anyone tell me how to do it?

I have the same issue with my air pump ... Let me know if that is any different.

Thanks
daved
Posts: 84
Joined: Sun Jan 27, 2008 3:36 pm
Your car is a: 1969 fiat 124 spider
Location: Erie Pa

Re: Need advise how remove water pump pulley

Post by daved »

Had the same problem with my 1969 Spider, think it has both a different water pump & pulley than your car. Had to use a gear puller, that actually bent the pulley quite a bit. Think you want to use lots of anti-seize when you put it back together.
Surfbeamer

Re: Need advise how remove water pump pulley

Post by Surfbeamer »

Ok, i will get a puller. Probably need one that fits the 3 holes to avoid destroying pulley.

I also found that the little water channel above the impeller was clogged with deposits. The car seemed to be cooled fine. Anyone know what that water channel was cooling?
BEEK
Posts: 1833
Joined: Wed Mar 24, 2010 10:45 pm
Your car is a: 1975 Spider
Location: clermont fl

Re: Need advise how remove water pump pulley

Post by BEEK »

no no no..... there is no puller needed to remove the water pump pulley on a 78 fiat spider. the pulley bolts on with 3 bolts only, a puller will ruin the pulley. the pulley at the flange is very thin, if it has stuck all that is needed is a little persuasion to get it unseated. the 3 holes are part of the water pump, if you pull from there you will ruin the water pump/

the little channel above the impeller is a direct shot to the bottom of the thermostat housing in the head, this was designed when fiat put thermostasts in the head, "the best idea"
Automotive Service Technology Instructor (34 year Fiat mechanic)
75 spider
, 6 Lancia Scorpions, 2018 Abarth Spider, 500X wifes, 500L 3 82 Zagatos. 82 spider 34k original miles, 83 pininfarina, 8 fiat spider parts cars
son has 78 spider
Surfbeamer

Re: Need advise how remove water pump pulley

Post by Surfbeamer »

Thanks Beek. I'm glad I' slow. I will work on it tomorrow.
Cheers
Berek

Re: Need advise how remove water pump pulley

Post by Berek »

I had the same problem a couple years ago when i first got mine. P B blaster is a life saver. Spray it let it sit overnight and lightly tap it. it should just pop off
Surfbeamer

Re: Need advise how remove water pump pulley

Post by Surfbeamer »

Both water pump and air pump pulleys came off nicely after sitting overnight with WD-40 and a few light taps all the way round with a rubber mallet. I will look into getting PB Blaster for the future. Thanks again.
BEEK
Posts: 1833
Joined: Wed Mar 24, 2010 10:45 pm
Your car is a: 1975 Spider
Location: clermont fl

Re: Need advise how remove water pump pulley

Post by BEEK »

congrats! glad you didnt ruin something
Automotive Service Technology Instructor (34 year Fiat mechanic)
75 spider
, 6 Lancia Scorpions, 2018 Abarth Spider, 500X wifes, 500L 3 82 Zagatos. 82 spider 34k original miles, 83 pininfarina, 8 fiat spider parts cars
son has 78 spider
eman2112

Re: Need advise how remove water pump pulley

Post by eman2112 »

I had a similar problem with mine. Just used some liquid wrench on it and tapped the shaft with a soft mallet. Then tapped around the pulley till it was removable with a little pry with a long screwdriver from behind. Popped right off.
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