Water Pump
#16
Rennlist Member
I just replaced my water pump last weekend with a Pierburg pump (an OEM supplier) from Pelican parts (my original pump finally threw in the towel after 94k miles). The composite impellers are fine. Sure, they can break apart, but it's not really that likely. I feel like composite impellers are the next IMS bearing...
I also added in a low-temp thermostat while I was at it. The job is super easy (though a couple of the bolts are a bit of a pain to get at).
I also added in a low-temp thermostat while I was at it. The job is super easy (though a couple of the bolts are a bit of a pain to get at).
#17
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Robocop305 (08-27-2022)
#18
Hello,
How hard is replacing a bad waterpump on a 2000? I'm very familiar with working on 944 models, but not the 996. Say that an oil change is the easiest and a 944 clutch replacement is the hardest, with a 944 timing and balance belt change in the middle. Is a 996 water pump change easier than the belt job?
Thanks,
Barry
Barry Lenoble
lenoble@optonline.net
89 944 turbo
00 911 Cabriolet
How hard is replacing a bad waterpump on a 2000? I'm very familiar with working on 944 models, but not the 996. Say that an oil change is the easiest and a 944 clutch replacement is the hardest, with a 944 timing and balance belt change in the middle. Is a 996 water pump change easier than the belt job?
Thanks,
Barry
Barry Lenoble
lenoble@optonline.net
89 944 turbo
00 911 Cabriolet
#19
Rennlist Member
Hello,
How hard is replacing a bad waterpump on a 2000? I'm very familiar with working on 944 models, but not the 996. Say that an oil change is the easiest and a 944 clutch replacement is the hardest, with a 944 timing and balance belt change in the middle. Is a 996 water pump change easier than the belt job?
How hard is replacing a bad waterpump on a 2000? I'm very familiar with working on 944 models, but not the 996. Say that an oil change is the easiest and a 944 clutch replacement is the hardest, with a 944 timing and balance belt change in the middle. Is a 996 water pump change easier than the belt job?
It's pretty straightforward (there is a great write up on how to do it on the Pelican Parts website). The hardest part is getting to a couple of the bolts, they're just in a very awkward spot to reach and you may have to get creative with your tools.
#20
Hello,
How hard is replacing a bad waterpump on a 2000? I'm very familiar with working on 944 models, but not the 996. Say that an oil change is the easiest and a 944 clutch replacement is the hardest, with a 944 timing and balance belt change in the middle. Is a 996 water pump change easier than the belt job?
Thanks,
Barry
Barry Lenoble
lenoble@optonline.net
89 944 turbo
00 911 Cabriolet
How hard is replacing a bad waterpump on a 2000? I'm very familiar with working on 944 models, but not the 996. Say that an oil change is the easiest and a 944 clutch replacement is the hardest, with a 944 timing and balance belt change in the middle. Is a 996 water pump change easier than the belt job?
Thanks,
Barry
Barry Lenoble
lenoble@optonline.net
89 944 turbo
00 911 Cabriolet
Youll know you burped when the temp jumps and the red light flashes
I probably added at least 1/2 to 3/4 of a gallon after the initial burp.
#21
Rennlist Member
Flush it then flush it again and maybe if you are **** like my guy is flush it a turd time for good measure!!! Then burp and burp more - mine burped 3-4 times so be sure to have some pentofrost and distilled water at hand for the first 50-100 miles (well mine took 100 because i drove it home about 80 miles just cruising on the highway)
Youll know you burped when the temp jumps and the red light flashes
I probably added at least 1/2 to 3/4 of a gallon after the initial burp.
Youll know you burped when the temp jumps and the red light flashes
I probably added at least 1/2 to 3/4 of a gallon after the initial burp.
#22
There is a little valve on the cap - drive with that open as well. Let's the air out. I left mine open a little longer than the last burp. It was middle of winter and never more than 30 degrees so it wasn't a big deal like it would be this time of year.
#23
Not if you watch the temp gauge. If it goes to 200 from 180 then stop, theres something amiss needs looking at. Thats the time to change the water pump. Not when theres buggar all wrong with the one you have. Thank god for the scare mongers. If we had to take notice and upgrade everything they are selling, we may as well go flat out and buy a new engine. Whats the point in buying a 996 at a very reasonable price then spending all kinds of cash on upgrading the engine as soon as we get the car? We might as well have gone for a $50000 later model.
Temperature gauge wont help you much I'm afraid.
Gauge = a means of estimating or judging; criterion; test. ( a guess! )
#25
Drifting
Join Date: Sep 2011
Location: Ephrata, PA, USA now. Originally from the UK
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But when the impeller flies off... Doesn't the flow of water stop. Then the impeller stays where it came off. Then the temps go up because of no water flow. Then you switch off. A differant case if only a blade should fly off. Then we are in trouble. Mine I think is the original water pump. If thats metal or plastic I don't know or even care. If it starts to leak then it gets changed to a plastic bladed one in case the impellor breaks on that one.
#26
Three Wheelin'
But when the impeller flies off... Doesn't the flow of water stop. Then the impeller stays where it came off. Then the temps go up because of no water flow. Then you switch off. A differant case if only a blade should fly off. Then we are in trouble. Mine I think is the original water pump. If thats metal or plastic I don't know or even care. If it starts to leak then it gets changed to a plastic bladed one in case the impellor breaks on that one.
The blade shrapnel then travels through the water jackets and get lodged in the narrowest ones - often times the head.
Hot spots develop, which leads to cracks, which is likely to manifest as intermix..
Most impellers are plastic, the 997 "update" is metal. The plastic impellers break more easily when the bearing gets loose, but the metal impellers grind the engine case. Neither scenario is any good.
Either way it is recommended to check for leaks or listen for noises indicating a worn bearing, but better still....replace the pump before either occurs.
And you won't see this on your temp gauge Hurtin'Gurti man...once again if you had a shred of mechanical sense you might have thought twice about dispensing your own particular brand of wisdom....but go ahead and defer all the maintenance you want. We'll be there with all sorts of advice for you when something breaks
#27
Drifting
And you won't see this on your temp gauge Hurtin'Gurti man...once again if you had a shred of mechanical sense you might have thought twice about dispensing your own particular brand of wisdom....but go ahead and defer all the maintenance you want. We'll be there with all sorts of advice for you when something breaks
I understand that Hurdi hurt your feelings in the past, but please try to get over it and move on. Your repeated attacks on him smack as a scorned woman.
#28
Three Wheelin'
Just reading up on some other threads and I can see HGM has been cementing his rep pretty good all by himself. I'll let him do the work from now on.
#29
Drifting
Thanks for the reality check DC. I can let it go. I've been away a while and thought I'd check in, and knee jerked I guess.
Just reading up on some other threads and I can see HGM has been cementing his rep pretty good all by himself. I'll let him do the work from now on.
Just reading up on some other threads and I can see HGM has been cementing his rep pretty good all by himself. I'll let him do the work from now on.
#30
Former Vendor
tells me no plastic, i went with metal.
Keep the plastic impeller and change the pump every 3 years despite mileage.
The Excellence article is great this month, their contributor on this article really knows his stuff :-)