Porsche Boxster 986 Water Pump Replacement & Thermostat Replacement
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- Опубликовано: 25 июл 2024
- Porsche Boxster 986 water pump replacement should be considered a scheduled maintenance item over that of a repair. Water pump failures on these cars are common, but can easily be avoided with proper maintenance.
In this video I'll show you how to replace your Porsche 986's water pump, what parts you'll need, and how to change the thermostat which is a good additional service to perform at this time as it only adds about 10-15 extra minutes to the job and is an inexpensive part.
Is your Boxster's water pump still functioning fine? If so how many miles/kilometers are on it & how old is it? Why are these question's important?
Because it's not a question if your Boxster's water pump will fail, but when it will fail! The 986 will generally go through water pumps every 50K to 60K miles (80K to 100K km). The original water pump in our 1999 Boxster 986 started to fail around 88K km at which time it was 12 years old.
My own personal 986 water pump preventative maintenance replacement schedule I now follow is every 10 years or 80 km, whichever comes first. It's a fairly easy DIY job and parts don't cost much. This truly is where an ounce of prevention is worth many pounds of cure! I also check the water pump with every oil change for external leaks from the water pump pully shaft location which indicates the seals are leaking and the water pump bearing will likely fail soon.
Over & above water pump & thermostat replacement, other items to inspect/replace during this service include the auxiliary drive belt and idler pullies - another surprise I found in this video.
Parts Used In This Service:
- Water Pump: www.pelicanparts.com/More_Inf...
- Water Pump Gasket: www.pelicanparts.com/More_Inf...
- Thermostat 83C: www.pelicanparts.com/More_Inf...
Time Stamps:
0:00 Intro & parts you'll need
1:01 Drive belt removal & inspection
2:19 Water pump removal top fasteners
3:02 Thermostat removal
4:28 Water pump removed
5:13 Water pump inspection & discussion
8:49 New thermostat & water pump installed
9:04 Noisy idler pully discovered
My other Boxster 986 DIY service videos...
- How to put your 986 into service mode: • How To Put Your Boxste...
- Changing/flushing the coolant/antifreeze: • DIY Porsche Boxster Co...
- Air filter change & MAF sensor cleaning: • DIY Boxster 986 Air Fi...
- How to lift your Porsche Boxster: • How to Lift a Porsche ...
- Changing the oil & filter: • DIY Porsche Boxster Oi...
- Replacing spark plugs & coil packs: • How To Replace Spark P...
- Changing Brake Pads & Rotors: • DIY Porsche Brake Job:...
- Flushing & bleeding the brake fluid: • DIY Porsche Boxster Br...
- Cleaning the radiators & condensers: • DIY Porsche 986 Radiat...
- How to change the Litronic D2S HID headlamp bulb: • Easy Porsche Boxster H...
IDLER PULLEY SERVICE UPDATE:
I was able to replace just the bearing in that idler pulley and I decided to do all 3 pullies because if one was gone, the others were likely not far behind. All 3 idlers take the same size bearing (17mm x 40mm x 12mm). I used good quality SKF 6203-2RS bearings.
amzn.to/3xcFIc7
You need a hydraulic press to perform this job and it does take some knowhow. Freezing the new bearings in the freezer before installing made the press-in process go easier. You have to use bearing retaining compound (Loctite 648 for example) when refitting the bearings into the pullies. Bearings were about $10 each compared to almost $100 for each idler pulley. $30 vs $300 - you decide :-)
DISCLAIMER: This video is for information and entertainment purposes only. It's no substitute for prior mechanical experience and/or training. You work on vehicles at your own risk.
Please consider giving a thumbs up & subscribe if you enjoy my content - thank you & thanks for watching :) 
Авто/Мото
Additional Boxster 986 "How To" Videos That Are Applicable To This Water Pump & Thermostat Replacement Video:
- How to put your 986 into service mode: ruclips.net/video/32tJaAs8ApU/видео.html
- Changing/flushing the coolant/antifreeze: ruclips.net/video/_79YWwJDrz4/видео.html
- How to lift your Porsche Boxster: ruclips.net/video/fDA-qI5HsIU/видео.html
Thank you for this video and the linked tutorials! Bought a 2002 986 a few months ago. My first manual car and first car I've owned that's almost old enough to drink. She's low miles, but will still need continuous work to replace aging components. Thankfully I can treat that as more of a hobby than a PITA. Looking to make a water pump swap my first "big boy" car fix and your video has been incredibly helpful. Subbed for more content!
Thanks John for your excellent video. You made the job so much easier knowing what to expect. I agree with Kevin Bond below that you get straight to the point which is refreshing. Your video and narrative is clear and consistent. I am glad that there are people like you that take the time to produce these videos' for us Do It Yourselfers. I look forward to your future videos.
@David G. Thanks so much! Really appreciate the support. Most importantly, glad you were able to tackle this job yourself successfully and without too much drama hopefully. Happy "Boxstering" Cheers - J
This video is amazing! Waaaay better than most other tutorials. Packed of practical advice in a no frills way - no stupid music or visual effects.
Water pump went out yesterday, ordered a new one today and will install it tomorrow. Thanks, great video and very informative. I wish everyone would get straight to the point in this manner.
Glad you enjoyed it Kevin - Good success with your pump replacement - have fun 🙂
For only 500 views this is a super high quality video. Thank you so much.
Thank you too 🙂
less than a 10 second intro for a 10 minute video! Thats more like it.
Excellent video. I was concerned about venting and refilling the coolant since I hadn't tackled that job before. Followed the instructions in the coolant video and when quickly and no issues with venting or refilling. Thanks John.
Thanks for watching and glad the bubbles burped without any problems.
Very clear and instructive - thanks!
Glad it was helpful & thanks for watching
Brilliant video sir
Thank you for sharing the video, very informative!
Thanks for the feedback - glad you found it useful 🙂
Great video, well presented.
Thanks for watching
This video is gold! Thanks!
Glad you liked it
Super good video! Thank you!!!
Glad you liked it 🙂
Great video
Glad you enjoyed it & thanks for watching 🙂
Great Video!!!!
Thanks for watching 🙂
This is top top content! 👏👏👏
Glad you enjoyed it 🙂
Awesome video!!! I am thinking about saving for one of these as theyre almost the same price as Miatas these days. Only issue I have is I think you should ALWAYS replace the serpentine belt if youre in there anyway, theyre SOOOOO cheap.
Cheers John gonna be doing this soon
Good stuff 👍
Great and informative video! Thanks.
My waterpump just started leaking.
Glad it helped 🙂
Thanks!
Thank you so much for the support & happy New Year 🙂
Very informative, thank you sir. These don't seem terrible to work on
Thanks for watching. Yes, they are fairly easy to work on, just a little harder to access.
@@Rchelicopterfun that's the thing I've seemed to notice, really removing all the engine covers looks worse than a good amount of jobs. If you don't mind me asking, about how much yearly do you spend working on it?
No idea as it varies depending on what services it needs in any given year. Some years it only needs it's annual oil change service. This year however I've done all the brakes, tires + oil change so it has cost considerably more than usual. Been a very reliable and fun vehicle (had it since 2001). Certainly more reliable than the 911T we had before 🙂
@@Rchelicopterfun awesome, thank you. I'm considering picking one up in the next year and am trying to gain as much knowledge as possible. Either way it can't be worse maintenance-wise than my old MG
Good video!! Thank you for posting. I know creating and editing these videos take time! I saved your video for further review as I prepare to do mine. Thanks for the torque specs also. Where did you get your parts by the way???
Thanks for watching - links in description and that is where I purchase most of my Boxster parts.
Excellent video! Preparing to replace my 987.1 WP & Therm. Any special tool you would recommend? Thx.
@philburkett3719 Not much in the way of any specials tools for this job. As you saw, I only needed a 10mm socket, a breaker bar or even a long ratchet with 24mm socket to release the idler pully tension, and a small torque wrench if you wish to correctly torque the pump & thermostat housing bolts to 10 Nm.
A few tools I used off camera included a 10mm spanner (box end wrench) for one stuck bolt on the pump, a plastic scraper to remove some stubborn gasket material, and a 3M Scotch-Brite pad to remove the finally little bit of stuck on gasket material. I forget the size of socket I needed to remove the noisy idler pully at the end.
Suppose the most important tools you can bring to the job like most is knowledge, common sense & patience. 🙂
@@Rchelicopterfun Completed my 987 water pump and thermostat replacement and you were dead on with your patience comment. Had one bolt on WP and one on Thermostat that were a bitch. Was my first time and took about seven hours start to finish. Couldn’t have done it without your excellent video. Keep ‘em coming. Thx again.
@@philburkett3719 Glad to hear it went (mostly) ok. Yep, stuck & seized fastners, the unknown nuckle skin removers that envariably add time and several to many four lettered words to any mechanical repair. :)
Also, I didnt know about the access hatch, the more I look into the older Boxster's Im realizing that the maintenance difficulty might be majorly over stated.
Yep, 986's are fairly easy to work on and access, just a little different from conventional, and different unfortunately is more often than not misrepresented as scary or hard.
@@Rchelicopterfun hey I’m glad it’s that way, keeps the prices down hehe
But how do I know if my water pump or thermostat is leaking? Great information, Thank you.
Not sure if this is a serious question, but it's pretty obvious, there will be coolant leaking out of either...
THANK YOU. TODAY, I NOTICED THAT WHILE THE CAR WAS PARKED THERE WAS COOLANT ON THE GROUND. IT APPEARS TO BE COMING FROM THE RIGHT REAR AREA OF THE CAR. @@Rchelicopterfun
RIGHT REAR UNDERSIDE OF THE CAR. I WILL HAVE TO FIGURE IT OUT BY USING SOME OF YOUR VIDEOS AND OPENING THE ENGINE COMPARTMENT. THANK YOU SO MUCH. TONY@@Rchelicopterfun
What Year is this boxster?
what about the Pierburg pump with composite impeller?
Totally dependent on the type/hardness of the composite. This one and the OEM one by definition are also running composite impellers being made from glass fiber reinforced plastic. Main thing is the impeller material is softer than the aluminum engine block so if excessive lateral or end play develops, the sacrificial mechanical fuse (the impeller blades) will be the ones that are shaved down and not the insides of the engine block.
John, so I figured out that neither the water pump or the thermostat are leaking. I found that there is coolant on top of the cylinder head. I believe it's Bank #2 area; right rear (passenger) side of the vehicle above the drive axle. I just can't figure out what is causing the leak as all the hoses from the coolant tank are dry. Any ideas as to what could be leaking or causing the leak?
Would need to see it otherwise just guessing - inspection scope time most likely if it's not a leaking coolant tank.
@@Rchelicopterfun Didn't even think of that. I will do that on Friday. Thank you so much.
@@Rchelicopterfun John, I pressurized the cooling system and found that it's the VALVE UNIT / HEATER CONTROL VALVE that's leaking coolant. I was only able to identify the part by taking pictures of it and going to the Porsche dealership. But even then, the parts people had a hard time themselves identifying the part and they had to call me later to tell me what it is.
@@Rchelicopterfun Good Morning John, it was in fact the Valve Unit that was cracked and leaking coolant. It was really hard getting to it. Porsche dealer wanted $200 for the part but I was able to find it for $16 on PartsGeek. I wish I would have video recorded on where it's located, how to take it out and reinstall it. Thank you for the assist. Tony
Thanks!
Thanks for the support - really appreciate it! 👍