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Jam911
Albert Park


Joined: 31 Oct 2010
Posts: 1544



PostPosted: Wed Jan 08, 2020 7:27 pm    Post subject: DIY Tandem Pump Change Reply with quote

On my 3rd rusty tandem pump.

Had anyone DIY changed it, how hard on scale of 1 - 10?

Or how much on at Indy ( In Wellingborough )

Thanks
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Thefinn
Suzuka


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Location: Essex


PostPosted: Wed Jan 08, 2020 7:45 pm    Post subject: Reply with quote

Why dont you just change the cover for an ACP one, it's only a few bolts to undo, the hardest part is getting the internal plate back in but really it's quite an easy job to change the cover out.


alternativecarparts.co.uk
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997.1 C4S CAB

The Finn's 997 4S progress thread take two
 
  
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deMort
Dijon


Joined: 21 Mar 2015
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Location: Brighton


PostPosted: Wed Jan 08, 2020 7:56 pm    Post subject: Reply with quote

If changing the entire pump then i would recommend an Indy.

If the bolts are rusted / corroded in place then they wont come out .. it's hammer time basically to break apart the pump housing .

It's highly likely you will need the vacuum pipe as well as these tend to corrode and cannot be removed from the old pump .

if everything comes undone then its a diy job ..in my experience they don't always go smoothly ... hence get a garage to do it .

can't comment on the cover on its own as i've never done that .
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Jam911
Albert Park


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PostPosted: Wed Jan 08, 2020 8:30 pm    Post subject: Reply with quote

Thanks you guys.

A cover won't work I am afraid, I need the whole pump
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MattyR
Hockenheim


Joined: 21 Sep 2015
Posts: 701
Location: Somewhere Nr Tunbridge Wells, Kent


PostPosted: Wed Jan 08, 2020 10:56 pm    Post subject: Re: DIY Tandem Pump Change Reply with quote

Jam911 wrote:
On my 3rd rusty tandem pump.

Had anyone DIY changed it, how hard on scale of 1 - 10?

Or how much on at Indy ( In Wellingborough )

Thanks


Sorry, but did you say third pump?.. They can’t go that often, surely? I’d be interested to know why seemingly so many pumps don’t seem to be playing cricket!?
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monster
Imola


Joined: 04 Sep 2010
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Location: Bournemouth


PostPosted: Thu Jan 09, 2020 1:25 am    Post subject: Reply with quote

I'm on my third as well - had the car 10 years!
 
  
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Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15727
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Thu Jan 09, 2020 11:30 am    Post subject: Reply with quote

best price for the pump is auto doc as its a pierburg pump
currently on offer at £251 inc vat and delivery

https://www.autodoc.co.uk/pierburg/7890260?gshp=1&gclid=EAIaIQobChMIrdXH9rT25gIVSbTtCh3OnAemEAQYDiABEgIWYfD_BwE
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Jam911
Albert Park


Joined: 31 Oct 2010
Posts: 1544



PostPosted: Thu Jan 09, 2020 1:15 pm    Post subject: Reply with quote

Yes I have had the car 9 years as a daily drive in all weathers, that is why it is my third pump.

And the fact that they are made of cheese, all be it expensive cheese.

Thanks for the link too
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Hertsdriver
Montreal


Joined: 12 Nov 2018
Posts: 510
Location: Hertfordshire/London

2004 Porsche 997 Carrera 2

PostPosted: Thu Jan 09, 2020 2:01 pm    Post subject: Reply with quote

Is yours actually leaking?
What makes you think you need a new pump?
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Jam911
Albert Park


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PostPosted: Thu Jan 09, 2020 6:31 pm    Post subject: Reply with quote

I had some work done a few months ago and the indy said the pump was badly corroded...and yesterday i had to top up the oil for the first time.

I am not sure it is leaking but I am now monitoring ... no oil on garage floor at present so I am keeping everything crossed...
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deMort
Dijon


Joined: 21 Mar 2015
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PostPosted: Thu Jan 09, 2020 7:45 pm    Post subject: Reply with quote

If the tandem pump was leaking to the point it was dripping on the floor then its an urgent replacement !

You can look at the cover , use a mirror or jam your head under there ! .. if any damp spots then its starting to leak .. this is a .. get it replaced soon ish advisory .

Heavily corroded is what we say when we are covering ourselves on a service or inspection .. we can't say how long it will last so we point it out ... same with brake pipes ... no leak but it looks bad .

This won't be the cause of your oil top up .. but with 2 year service intervals then they do occasionally use a bit of oil Smile

The cover is made of chocolate and suffers on our roads with winter gritting i'm afraid .

When replaced then cover the new one in waxoil , acf50 etc .. helps it last a bit longer .

I've seen plenty leak over the years .. never yet seen one dump its oil though .
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Jam911
Albert Park


Joined: 31 Oct 2010
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PostPosted: Thu Jan 09, 2020 9:23 pm    Post subject: Reply with quote

Thanks I will jam my head under it tomorrow morning and see how bad it is !!

Changed the oil last April not topped up since then but I do now do an 12 month oil change as you advised.

The main difference is for the last 6 months my commute is now country lanes and not motorway.

So I guess the motor is working harder and maybe this would cause it to use a bit of oil?

Car is going to become a Garage Queen in a few months after 9 years of faithful daily...well deserved
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Frenchmeister
Barcelona


Joined: 24 Feb 2014
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Location: Beautiful Cumbria.

2004 Porsche 997 Carrera 2S

PostPosted: Thu Jan 09, 2020 9:56 pm    Post subject: Reply with quote

I changed my own when it went, you need to make sure you get a good fit socket to torx bolt to get them out, clean out all the debris, one of mine chewed up so it was sharp chisel time to get it moving.
Replace them with bolts or machine screws and lather the new unit with heavy grease to stop it corroding.
Crap design by Porsche as they never gave a thought to the environment it would be exposed to.
The Pierburg pump is fitted to loads of other vehicles, my BMW X3 2.0D being one of them, different pipe positions though but the same animal, mounted up top so does not get covered in salty grime so it lasts. Judge
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MattyR
Hockenheim


Joined: 21 Sep 2015
Posts: 701
Location: Somewhere Nr Tunbridge Wells, Kent


PostPosted: Thu Jan 09, 2020 10:16 pm    Post subject: Reply with quote

Jam911 wrote:
Car is going to become a Garage Queen in a few months after 9 years of faithful daily...well deserved


Sounds like a well deserved semi-retirement. What’s the new daily then?..
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Thefinn
Suzuka


Joined: 11 Jun 2014
Posts: 1136
Location: Essex


PostPosted: Thu Jan 09, 2020 10:23 pm    Post subject: Reply with quote

I still think you should be checking out the acp cover which replaces the flimsy tin one with a nice thick machined aluminium lid, negating the corrosion issue if there is no problem with the actual pump.
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Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15727
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Fri Jan 10, 2020 10:43 am    Post subject: Reply with quote

Thefinn wrote:
I still think you should be checking out the acp cover which replaces the flimsy tin one with a nice thick machined aluminium lid, negating the corrosion issue if there is no problem with the actual pump.


I am interested to see how your cover is doing mate ,I remember when you fitted it there was much debate as the previous maker of aftermarket covers had failed and the rotors in the pump were catching on the cover ,and it was agreed only time would tell if this had been correctly designed so its good to see yours is holding up well and means this could be suitable option for guys to consider. Thumb Thumb
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Jam911
Albert Park


Joined: 31 Oct 2010
Posts: 1544



PostPosted: Fri Jan 10, 2020 11:16 am    Post subject: Reply with quote

What Phil said.
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Hertsdriver
Montreal


Joined: 12 Nov 2018
Posts: 510
Location: Hertfordshire/London

2004 Porsche 997 Carrera 2

PostPosted: Fri Jan 10, 2020 11:39 am    Post subject: Reply with quote

Jam911 wrote:
I had some work done a few months ago and the indy said the pump was badly corroded...and yesterday i had to top up the oil for the first time.

I am not sure it is leaking but I am now monitoring ... no oil on garage floor at present so I am keeping everything crossed...


If it’s not actually leaking then there’s no point in replacing it.... get a good look at it, wire brush the cover, poke it with a screwdriver and if it’s just rusty and a bit flaky (as they all are in the I’m) then get all the loose rust off and give it a coat of hammerite. It could last another 10 years...

I don’t think you can buy the ACP covers anymore due to the issues that Phil mentioned, they certainly are not on their site.

I contacted pier berg directly about 6 months ago asking if the covers could be made available separately but they refused 🤪

If you really want to replace the cover you can buy used pumps direct from places like America that don’t have any corrosion at all for significantly less than the cost of an acp cover (and that’s of you can find one) , last one I saw was £100. Personally I would clean yours up and costar it then keep an eye on it Thumb
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Luddite
Montreal


Joined: 18 Dec 2018
Posts: 582
Location: Scotland


PostPosted: Fri Jan 10, 2020 2:19 pm    Post subject: Reply with quote

Just thought to add that I suspect Hammerite in terms of it`s hammered enamel finishes was found by my less than expert processes to be less than ideal in keeping rust at bay, as the little indentations in the "hammered" finish seemed to be where rust would begin to appear in time..? However I found Smoothrite by the same company to be very good..Of course your results may vary.. Question
 
  
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Thefinn
Suzuka


Joined: 11 Jun 2014
Posts: 1136
Location: Essex


PostPosted: Fri Jan 10, 2020 2:37 pm    Post subject: Reply with quote

Phil 997 wrote:
Thefinn wrote:
I still think you should be checking out the acp cover which replaces the flimsy tin one with a nice thick machined aluminium lid, negating the corrosion issue if there is no problem with the actual pump.


I am interested to see how your cover is doing mate ,I remember when you fitted it there was much debate as the previous maker of aftermarket covers had failed and the rotors in the pump were catching on the cover ,and it was agreed only time would tell if this had been correctly designed so its good to see yours is holding up well and means this could be suitable option for guys to consider. Thumb Thumb


My cover is fine no issues what so ever i even took it off my old car and put it on my current 997 with new fixings / seals and i have had no leaks or problems. I will add though i don't do massive millage in the porky so i have only tested it for around 5k miles but its been good up to now.

APC might be worth a ring as i do remember when i bought it that the website wasn't the best so they might just not be on there.
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