Hi all, I have a hydraulic pump PN 996.561.060.02 that will not move the hydraulic cylinders for the roof. I have the entire setup on a bench and tried a 996 (non-turbo) hydraulic pump, PN 996.561.060.00 (much larger pump), which moves the cylinders fine. I disassembled the 996.561.060.02 and replaced the seals but I'm getting almost no pressure so I'm thinking this pump is trashed.

I am wondering whether I can install the 996.561.060.00 pump instead. While it is bigger, there is room for it though I would have to make a bracket. Is there anything to be concerned about in using the 996 pump on a 996 turbo? I assume the pump power will be stopped when the roof gets into the correct position so I can't see an issue but want to be sure before potentially damaging anything.

Thanks, Blair

 

Can you upload side by side pictures?

 

The larger one (working, PN 00) in the top picture is for the 996 and the smaller one (not working, PN 02) in the bottom picture is for the turbo. Since both systems use the same cylinders, have the same fluid and have the same power connector (just positive and negative wires, no sensors), the only difference I can tell seems to be mounting and I can fabricate a bracket. Operationally, as long as the soft top opening/closing sequence uses the position of the roof to start/stop the pump and not some time based method (i.e. the pump runs for x seconds before removing power) than I think it should be fine. Thoughts?

 

If the replacement pump doesn't physically interfere with anything it should work, after all they were designed to do the same task. Personally, the originality violation would keep me up at night. Yikes, just looked at the price of a new pump.....I see your dilemma.

 

I like to keep it original for the most part as well but this larger pump seems much stronger and better built (cost, weight maybe?) plus its from the same OEM manufacturer Hoerbiger Hydraulics in Germany. According to Pelicanparts the 02 part and its lookalike part number 997-561-307-00-OEM were used on all of the 996 and boxster models of that generation. This is incorrect as the 00 that I have came from a 2000 996. Odd, however, I am tending to agree that if there is no interference, this is worth using. I can't stomach the idea of spending money for what looks to be an inferior part when I have a quality working one in my hands.

 

You could always look and see what this seller has: https://www.ebay.com/usr/qualityporscheparts

I purchased some parts and they shipped quickly.

Don't be afraid to make an offer. they accepted mine, which was well below asking.

 

Thanks for the link. The working one I have was provided to me from TheSalvageGuys, a reputable group, via ebay. At the time I needed the cylinders and there were none that had the 02 pump so I went with it. Now I need a pump and don't see a reason to spend more money if I already have a pump that will work fine as long as there is no issue using it. I haven't yet heard of a reason not to use this pump so I think I'll give it a try.

 

Or, resell the pump to offset the cost of a used correct replacement......

 

Yes, that is a possibility as well. I'll keep ya'll posted. Thanks!

 

It's a shame Dave at Rennkit has not tackles this one yet with one of his electronic lifts. Hmmm...

 

;o)

 

oh... another one... Does this look sort of familiar?

 

Looks quite familiar! I'm going to use mine for a doorstop.

 

And the verdict is in. The larger pump is installed and works perfectly, much stronger than the smaller pump ever did. Everything connects up perfectly and I fabricated the bracket shown below out of the original bracket from the larger pump, reusing the original rubber grommets for vibration isolation. Very impressed with this 'new' pump in that it has the fill hole in the machined metal body of the pump rather than than in the end of the plastic reservoir. My only guess as to why they went with the smaller pump on future cars was for weight reduction. I appreciate the 'keep it original' argument but I'm not a purist, and being an engineer I draw the line at 1) throwing good money away for nothing other than maintaining originality on a part no one cares about or will ever see, and 2) replacing a part with an original inferior component if a better one is available for the same money or less.

 

Sweet! Do you have a pic of the unit installed (before the cover carpet piece is replaced)?