How to CHANGE WATER PUMP and THERMOSTAT in Porsche Boxster 986 (Project 34)
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- เผยแพร่เมื่อ 28 ส.ค. 2024
- Project 34: from the 101 Projects for your Porsche Boxster book
Changed the water pump and thermostat while I was changing a leaking coolant tank as preventative maintenance on my 1998 Porsche Boxster. Made another DIY for you guys!
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OEM Water Pump + Gasket:
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Disclaimer
I am a Do It Yourself, also known as DIY, mechanic. I am NOT a professional mechanic. I do not have any formal training in the automotive field.
Help Me DIY assumes no liability for anything you choose to do to your car, before, or after watching one of my videos or utilizing the content from this web site.
All DIY repairs or modifications you perform to your car are made at your own risk. Sometimes, even if you've done everything the right way, you can destroy or damage one or more things on your car. You must understand this, but by leveraging knowledge and patience, the probability of encountering one or more problems can be reduced.
Also, if for some unfortunate reason, I do give incorrect instructions and something breaks because you followed my instructions, I will NOT reimburse or pay in any way for whatever cost that may be incurred due to following my wrong instructions.
Lastly, please don't do anything to your car unless you yourself feel comfortable and confident in doing so.
Just changed my water pump on a 2000 Boxster 986 2.7 litre. This is the best and most realistic of all the videos on You Tube dealing with this challenge. I had a similar problem with the bolt above the pump outlet. No amount of sockets or flex joints would get me access - they kept slipping off due to the engine bracket restricting access . I made a tool from a 10 mm socket with hex drill connection and used a 1/4 inch spanner as the drive. This worked really well. I am sure its feasible with sockets but be prepared for a challenge and some innovation.
Also , make sure you have adequate clearance under the car - the pump bolts are a struggle all round and the more access you have the better.
This is a great video covering and picks up on all the hassle points that you will face. If i can do it anyone can . Good Luck !
+Andrew Gibson thanks! Glad it helped you.
great video! just a tip for those stubborn coolant hoses that have been on for a while... if you use a 90 degree pick, you can slide it in where the hose is sealed and break the seal all the way around. That will free up the hose and allow you to work the hose off much easier and with less of a chance of tearing the hose
+James Doyle thank you. Great tip!
Hi, I have just watched your video and it is quite helpful. I would like to pass on some tips and tricks from my decades as a german car tech. To get the hoses off, you can use a 90º hose tool. I think they are available at Harbor Freight, Snap-on, Mac, etc. Another technique I use is pushing the hose on further. This works because the hose expands slightly at the hose fitting allowing coolant in and reducing the hose/fitting contact area. Doing that several times usually works great. When that fails I resort to the hose tool.
When trying to loosen corroded bolts and nuts, I have found tightening it just slightly to break it loose. Moving in the direction that it moved last, for some reason, works really well. And when I slight, I mean just enough for it to move. You don't want to snap it off. I have never had much luck with penetrating oil. The distance that oil needs to travel to the threads is a long way. I hope you find this info helpful. Keep up the great videos :)
+Charles Noack thanks for the tips, always appreciated! Hope you’re a subscriber 😉
Thanks! You're really helping the 986 community with these DIY vids.
+Frank Jaeger you’re welcome. I’m trying!
I did this project around 4 or 5 years ago and just as preventative maintenance, I will be doing the pump, thermostat and fluid again later this week. Another great video. Thank you !!
+Joe-serious Howard you’re welcome’ 🍻
I haven’t done it yet but I always like your videos when I get ready to do it I’ll reference to it thank you
+Sean Denny thanks man 😎
I try to make the most detailed and clear videos out there.
I've seen a couple of your videos and looking forward to see the rest.
Your videos are exactly what I want to see! Now I know what to expect when tackling this project. I must tell you it is very re-assuring from what you have shown us any mechanically incline person would be able to perform this project too. Thank you very much for sharing.
+Ross Golden thanks so much! Love hearing that they are helping someone. I try to make them as detailed as possible. If I can do it, you can definitely follow along and DIY!
Saw you fighting to get hoses off. If you Olsen & move hose clamp, you take a screwdriver and at the inside edge you put between metal & base & lift carefully around breaking the seal works faster & easier especially replacing hoses with new to help & reduce problems later. Water pump 1st then thermostat. That way you don’t have to fight the water pump going around the thermostat, then do the thermostat last. Just trying to help because its easier 🙂
+@donniecarrascosr.9912 thanks for the tips! 🍻
Going to be doing mine in a couple days. The noise started earlier when idling and revving the motor. Thanks for the video man!
+Brian Sturgill 🍻
Thanks for showing me the book I want to become the best mechanic in my country🇰🇳
+Rosevelt Rose good luck to you! 🍻
Good video and thanks again for clear explanations. My advise to others use only Porsche coolant. It has silicates in it. Helps lubricate the flow of coolant and pump's propeller. Germans designed it for a reason. Don't cheep out on it, or pay the consequences. Any serious overheating will result in Head Replacement at best. This is a well known issue in Porsche M96 engine world. Also, this pump is a maintenance item and has to be replaced every 50 K miles or sooner, along with Life Coolant. Another tip: use 71 Deg C thermostat. Take off front bumper and clean out radiators from debris while waiting for parts. Put blue lock-tie on all bolts and torque to 8 Ft/lbs. If you look at removed bolts, they had factory applied adhesive. Boxster is a much better car than 911 as far as performance is concerned and is easy to work on. Please take care of it and change oil every 3K miles with Liqui-Molly additive. The car saved the entire company and is extremely well engineered for light weight performance. The handling is out of this world. Just do your part, follow the maintenance schedule. Good luck.
+Malvina Shimanov agreed, great advice
I agree. I did this project 4 or 5 years ago and will be doing again later this week. I love my 986.
Great video. Thanks for posting
+ramabamaboomboom you’re welcome! Thanks for commenting and hope it helped!
Thanks for the video!! I'm planning to do it soon too!
+Allen Hsu it’s not too bad! Good luck and hope this helps.
Thanks for this video I did not know that access point was there.
+gary bowen you’re welcome 🍻
Great video. Have this job to do myself and watching your video has given me a lot more confidence. Good to hear you had Daffy Duck giving you a hand lol. Keep up the good work. Mick 👍🍻
+Michael Kane thanks! It’s not a terrible job to do. Should be straightforward with this video to guide you!
Great video, covers all the hard spots - thanks
+GroupJ Engineering thanks!!
Thank you again for show your job.
+marcelo igorra 🍻
This looks like a good video. I'm about to change mine, and I definitely think this will help.
+Rob S I definitely think so too 😉
Hi, Thank you, I really enjoy your videos, very honest professional and I like your style of presentation!
+Berni Davis thanks for the kind words, it means a lot! 🙏 😊
Great video. Thanks for posting.
You’re welcome!
Thanks, very useful. Would it be easier to drain the coolant via the drain plug, before loosening the hoses?
+Peter Brown I had just flushed the system a couple months ago, so I was trying to keep as much coolant as I could. Most people are probably going to want to get it all out though so that is a good idea. Although there will probably be coolant that comes out from the hoses there anyway
There is a drain valve for the coolant.
Awesome video! I am new to Boxster, 2 weeks, and will be doing this. Question. Can you put up the Amazon link for the swivel socket set you purchased. I may need that if I can’t get to all the bolts as you did. Thanks!
thank you ,really helpful
+Hafizan Daily thank you. Glad it helped!
I'll be changing my waterpump as soon as I am sent another new pump and gasket. The mating face on the pump is bad and the gasket had been damaged during shipping while in the box. The pump i believe is the cause of a rumbling after a bit of squeal.
+King of the West Midlands this video should help then 😉 Thanks for subscribing
@@HelpMeDIY yes, no problem, got a 1/4 universal joint socket and Norbar SL1 for torque 10Nm
These videos are great. +1.
Thank you!!! 🙏
Thanks for the good presentation. I'm wondering if it is the same process for 2008 Cayman S. (987.1). Thanks
+F.A.E CHANNEL I own one of those too, but haven’t had to do the job on that one yet. I assume it will be very similar.
Great videos. going to be doing this job in next month or so. were you able to get a torque wrench on water pump or did you snug down by feel in a cross pattern? Thanks.
Yeah I just did it by feel. You could probably get a torque wrench on a couple of those bolts, but snugged down in a cross pattern will work well.
No need for vacuum to refill, just park on a slight hill/driveway so rear of car is visibly higher than front, refill slowly with air bleeder up, you will hear air and it will fill with no air gaps.
+TheMinimoog1 yes you CAN bleed the system this way, but air notoriously gets stuck in the heater core and elsewhere on these cars requiring several cycles of using the air bleeder. Vacuum is much more reliable.
I must have been lucky, no air at all for me, simple procedure, ,people think they have to buy things like this even for brakes, using pressure, but never been an issue doing things for free always try free unless your loaded.
It's easier to remove the pump and thermostat then remove them from the hoses. FYI..
Also Porsche service manual says replace all the bolts for both the thermo and water pump and to use antiseize on them and to NOT use additional sealent like rtv.
+brandon bentley thanks for the additional tips. Yes, definitely no sealant with the metal gasket.
I normally only drive mine in nice weather but I’ve had to drive it lately and noticed it is taking quite awhile for the vehicle to warm up. I am thinking I need to replace the thermostat which will hopefully solve the problem. If I am only replacing the thermostat, can I just top off the lost coolant? Or is there any chance of an air lock, where it all needs drained? I am thinking if it’s lifetime coolant I won’t need to replace it all?
+Dutch K9 what I’ve learned is there is no such thing as lifetime coolant, or any other fluid. If it hasn’t been changed recently I would recommend draining it all before replacing the thermostat. And if the water pump hasn’t been replaced I would do that at the same time since that’s a known failure point in this car. Easy to do them together and then you only have to replace the coolant once.
Changed waterproof,p and thermostat, original thermostat was stuck closed
+Thugalicious well done
Have had problems with the pulleys bearing and today upon inspecting to strip down those pulleys again, the water pump has failed
+King of the West Midlands worst luck you’re having 😢
@@HelpMeDIY something is overloading the pulleys. Is there anyway the self adjusting tensioner unit for the belt could actual overtighten it?? Power steering pump is suspect, rotation of the pulley back and forth there's a small knock but no play in that pulley
Great DIY, why change to lower temp thermostat? seems not much difference between factory and lower degree thermostat
+Richard Lopez the reasoning is it opens at a lower temp so it starts circulating sooner to help keep the engine temps down more. Will it matter for your car? Depends on how hard you drive or if you track it. It was recommended to me so I used it. I’m sure I’d be fine either way.
The 986 were bad for running hot and overheat was common without adding another radiator, the low temp thermostat helps by openning sooner so engine still gets hot but slightly slower and lower temp can sometines mean longer engine life.
Is their a certain way to mount thermo gasket, seems it has a raised bead all around it and might only go towards block or thermo housing??
+Thugalicious now I don’t remember, but I assume I asked or tried to figure that out before I did mine the way I did it.
Seems like you didn’t reapply thread locker. I replaced my pump yesterday and didn’t use locker either. Did you have any issues based on not reapplying. I’d rather now pull all the bolts if I don’t need to.
+Beyond The Drive I did not have any problems
👍🏼👍🏼👍🏼
+A B 💪🍻
How did you scrub the old gasket junk before fitting the new?
+Ivan Studio hmm don’t remember. Probably a wire brush and/or razor blade
Those lifting ramps look a good idea, are they pricey?
+Philip Wheeler $1000. Totally with it in my opinion!
20:42 is that ac pulley? The one with no belt on it? Do you know size as I dont have ac working?
+ReXeR I don’t know, sorry. Maybe someone else can chime in though.
Did you notice lower water temps with the new thermostat?
+KnobGoblin no but I never really paid close attention. Just starts the flow a little earlier but wouldn’t expect it to cause a lower temp at max operating temps
Did you change out the fitting for the thermostat or just clean it up? The fitting looks brand new when you reinstalled it?
By fitting do you mean the gasket. Yes, new gaskets for both the thermostat and water pump. If you mean the fitting the the hose clamps on to, also yes as that is all one piece with the thermostat:)
guess i'll be doing this soon.....
+Mister25 Eight it’s really not bad after you see exactly what needs to be done!
Help me DIY I was wondering what a particular noise was, turns out it’s a water pump about one mile before it blows up. Watched most of your 986 videos and will be applying the knowledge to my new 2000 S. Appreciate it!
+Mister25 Eight great to hear. Thank you!
Why does the gasket come with that extra bit on if it’s not needed?
+Adam Charlton the gasket comes with both the water pump and thermostat gasket attached together. You have to cut them apart. You don’t need the tiny bit that physically connects them, that’s just part of the “mold” used to create them
Brilliant thank you, didn’t think you’d reply so fast considering it’s an old video and you probably get loads of comments.
@@adamcharlton4186 I reply to every comment that TH-cam notifies me about ;) Every now and then one sneaks by.
@@HelpMeDIY if only all creators were like you haha
@@adamcharlton4186 I know right?? I see all this big channels that never reply to questions. Hopefully one day I won't be able to reply to you either :P
I kid, but since you're reading this, I'm about to do my first "Premiere" video and watch live with everyone in an hour and 45 minutes, so check it out (LED wiring for my Boxster)
Surely you didn’t pay 282 for that pump. ?!😳. Lol.
Gates pumps are everywhere for 147 . I saw pienburg with all bolts & all gaskets & wheller THERMO with gaskets for 197. Lol.
And that’s w/71c thermo too. Lol