Flavia 2000 HF Waterpump trouble

[Flavisimo]

Im trying to fix the bearing on the waterpump on my Flavia 2000 HF (72) model.
But after removing the front screws on the flywheel of the pump I cant seem to get the flywheel of. Is there a special tool one needs for this job?
Can anyone help?

[ncundy]

If it is the same as a Fulvia I can probably help, do you have any photos?

[Flavisimo]

If it is the same as a Fulvia I can probably help, do you have any photos?

Not yet, just got back from the garage where its parked. I can have some done tomorrow though.
The tricky bitt, is after I get the screw that sits at the front of the waterpump flywheel, (the wheel the fanbelt is pulling around). It seems obvious that it would be easy to just pull the flywheel of after removing the front screw, but it will not budge.
Is there a a trick to get this of?

Thanks for offering help:))

[ncundy]

I've had a look at a cutaway and unfortunately it is not the same as a Fulvia. But the cutaway does show the pulley is a push fit onto the shaft. I imagine it has a bit of corrosion in the joint. If you can get the pump off the car I would do that, put the assembly in a vice a tap the shaft downwards - if not I would try freeze spray and a puller.

I think you need someone on here or Viva Lancia who has seen one in bits, it's past my experience now I'm afraid.

[rossocorsa]

I vaguely remember from years ago having to make a small puller for this bolt in centre pushing onto shaft slotted piece of metal roughly the width of the pulley with two small holes one at either end bolts in holes holding two l shaped metal pieces that hook behind the pulley put this on tighten centre bolt and hey presto off it comes only from very vague memory mind it's about 20 years ago!!

[Flavisimo]

WOW!! This suddenly sounds very complicated. Im trying to picture the puller you made, but Im not sure I get it right.
I cant belive they have to make it so darn difficult.

There seem to be a small tap at the centre of the flywheel Im wondering if one needs a special tool to grab the flywheel and screw it out.
We also tried to unscrew the four bolts that holds the front "piece" of the waterpump. We thought if we could get this part loose we could screw it of, with the flywheel in front it would all come of, and we could get to the bearing, which needs changing.

ncundy, you mentioned a cutaway. Can you give me some tips on where to get hold of one. Thank you.

Thanks again for the help.

[fay66]

Not yet, just got back from the garage where its parked. I can have some done tomorrow though.
The tricky bitt, is after I get the screw that sits at the front of the waterpump flywheel, (the wheel the fanbelt is pulling around). It seems obvious that it would be easy to just pull the flywheel of after removing the front screw, but it will not budge.
Is there a a trick to get this of?

Thanks for offering help:))

Not a left hand thread is it by any chance?

Brian

[Flavisimo]

Im not sure, Ill have to check. Ill take some pictures and post, when I get back from work.

[Flavisimo]

Here are some pictures of the flywheel that I cant seem to get of.

http://img714.imageshack.us/img714/3092/dscf4958v.jpg
By bjornark (http://profile.imageshack.us/user/bjornark) at 2010-06-29

http://img638.imageshack.us/img638/2773/dscf4953.jpg
By bjornark (http://profile.imageshack.us/user/bjornark) at 2010-06-29

http://img687.imageshack.us/img687/355/dscf4960q.jpg
By bjornark (http://profile.imageshack.us/user/bjornark) at 2010-06-29

[ncundy]

These are a couple of scans from the cutaway taken from La Lancia (Weernink) - quality of the scans isn't great.

These and your photos show a couple of things:

The shaft isn't tapered (which makes it easier) and is keyed (which makes it harder). It just requires a good pull by the looks of it.

What you want is something like this:

http://www.tooled-up.com/Product.asp?PID=27490&Referrer=froogle

Then I guess you can get the body out and do the bearings. Give it a clean and put it back together - next person with the problem will post on here in 40 years :)

[Flavisimo]

Fantastic!! Thanks for the scans and the help. I shall give it a good pull and see if it comes of. If not Ill try and get hold of the tools.

Thanks for all the help Lancia owners. :))

Bjorn in Norway

[philm]

If it is any help/consolation I will be pulling the water pump out of my Sport this weekend to see why it is not pumping.

[fay66]

Not a left hand thread is it by any chance?

Brian

Sorry for a bum answer, as now having seen the photos, I agree it just needs a puller to get it off, the reference to the screw thread threw me, I assume you're referring to the threaded shaft for the nut that holds the pulley on?
The recess in the centre of the shaft is where the tapered end of the screw for the puller locates, so it can't slip when the puller is tightened.

Brian

[rossocorsa]

could be wrong but i seem to remember that we made a puller as the mormal pullers we had to hand were too awkward to fit usual lancia stuff narrow gaps etc....

[Flavisimo]

Thanks for the help everyone.
Im getting a puller to try and get the flywheel off.

Martin at Omicron kindly gave me this advice:

The flywheel (pulley) is only held by a nut and lock plate. There is a woodruff key to locate it and prevent it slipping. It SHOULD just pull off. Try moderate heat.

Alternatively take the whole pump off the car. There are four M6 bolts. Loosen them a bit at a time and the pump body, impeller and pulley will come off as an assembly. Corrosion can make the two parts stick together but some light tapping should move it. Take car of the pulley. It is weak.

With the pulley removed you can press the shaft out towards the impeller. The front bearing is located by two circlips each side of the outer race. The other bearing is not located in the housing. There is a spacer between the bearings and a flinger between the impeller and he rear bearing. The stepped face should be to the front.

Lets hope it all goes well, Im a bit nervous about breaking something, since a new water pump seem impossible to get hold of...

[ncundy]

Cavallito sell them:

http://www.oldlanciaspares.com/flavia_eng/motore.php

I shouldn't worry though. I'm sure it'll come apart fine.

[Flavisimo]

Bought a Puller set today, and will try to get the pully wheel of.

[Flavisimo]

News on the waterpump fix.
The pulley wheel came straight of today after a good pull, phew.
Then after removing the four bolts i got the front plate off and the whole housing with bearings and the impeller came out.

As I understand the next step is to push the shaft out towards the impeller and the bearings should come out at the back with the shaft and the impeller.

If anyone knows the right procedure, please let me know.

Thanks
Bjorn

[Flavisimo]

I have now removed the impeller and the seal at the back.

http://img84.imageshack.us/img84/8095/dscf4976.jpg
By bjornark (http://profile.imageshack.us/user/bjornark) at 2010-07-06

http://img690.imageshack.us/img690/7097/dscf4978o.jpg
By bjornark (http://profile.imageshack.us/user/bjornark) at 2010-07-06

How do I get the bearings out?

[Flavisimo]

Given up on the old water pump, the bearings seem to be rusted stuck in the housing, and I cant get them out. Have bought a new one from Cavallito, thanks to Ncundy for the tip on that:)

[ncundy]

Bit of a shame you had to buy new, but sometimes it's the only option. Glad it's sorted.