21 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCrush Washer Extraction?
Reported or suspected cause
crush washer
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that report identifying a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Leading evidence: 'crush washer' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'crush washer' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check leaks tomorrow' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that report identifying a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Reported cause
Only problem was the drain hose I was using liked to suck in air unless pressed tight to the nipple, couldn't figure out where all the bubbles were coming from initially.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I just changed my oil for the second time (with a dealer oil change in between) - I know they refer to the washers as crush washers but the one the dealer used, and the new one I got from
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
Just changed my oil, flushed brakes and clutch with ATE Blue.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
Oil has been drained, filter changed without a hitch.
Discussions that performed work without a confirmed outcome
1
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I just changed my oil for the second time (with a dealer oil change in between) - I know they refer to the washers as crush washers but the one the dealer used, and the new one I got from
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Reported cause
Only problem was the drain hose I was using liked to suck in air unless pressed tight to the nipple, couldn't figure out where all the bubbles were coming from initially.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
21 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Planet-9: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
I got it solved, so no problems and don't expect any again.
Collegues:
I'm in the middle of my first oil change on a
Cayman S
. Have everything assembled. Oil has been drained, filter changed without a hitch. The problem is the crush washer.
This car is used. The plug was on really tight. I cannot believe
Porsche
Recommends 37 ft lbs on an aluminum pan but so be it. I also see that the washer is really thick. This is unnecessary and makes the washer squash out too far lodging it in the lip around the oil plug on the pan if you tighten too much, which is what I think the last oil changer did.
Has anyone had to remove one of these crush washers when it's been lodged into the pan like this? I've tried about 5 different little metal picks and screwdrivers and can't seem to get under it.
So far, every procedure I've tried to perform on this car has presented some sort of ridiculous complication. Grrrrr....
Thanks for any success stories on this subject.
-Six
Someone over tightened it; it is not a
Porsche
problem. That is another reason to worry about DIY maintenance when buying used. Have you tried very small needle nose pliers? They can allow you to grip and pull.
The correct torque and the correct crush washer offer no problems. Yours was not done correctly and probably not with the correct parts. Good luck.
I just changed my oil for the second time (with a dealer oil change in between) - I know they refer to the washers as crush washers but the one the dealer used, and the new one I got from
Suncoast
, just look like plain washers, not the crush washers I'm used to on other cars (but maybe they're soft enough to deform slightly).
No problems here with getting them on or off. Not sure what else to suggest to you for your situation. Can you try to cut thru the washer (carefully) w/ something like a
Dremel
or small chisel?
To deform this much I suspect the washer was reused multiple times in addition to overtorque. A previously stated when changed and torqued properly removal is not a remotely a problem.
If you try cutting it don't go all the way through. Scoring the seat on the pan would likely result in a leak. The washer does deform a little but not enough to fill in a deep score. Cutting part way through in a couple locations and trying to get it to fold up would be safer. I'd try Santa Fe's ideas with needle nose pliers first.
Thanks for your help, guys. I got it by using a metal angle pick and a screwdriver in the hole to pry against. Threads were slightly buggered when I re-inserted the plug, but not bad. Good seal on the new crush washer. I'll check for leaks tomorrow, but I think it'll be fine.
Porsche
seems to use a very wide crush washer compared to other marques. They also spec a higher torque for their plug, probably because it takes more to crush this big thing. Threads seem capable of the torque, however.
Now that I've done it myself, I know what to expect
next
time.
Thanks again!
-Six
Hi Six. Glad you got it out. As others have said, when all was done properly before - It is almost a pleasure to change the oil on these cars. You probably already do, but just in case - always inspect the old filter for any debris. That is why they are the insert type. You should see nothing but oil.
I've had no problems with any of my 3 oil changes thus far, nor with 2 others helping friends. However, after you've completed your R&D please do let those bumbling Stuttgart engineers at Porsche know your recommendations for appropriate torque settings and which crush washer would be best.
:beer:
Dan:
Good to know that your 5 oil changes have gone smoothly.
I've been to see Bugatti, Lamborghini,Ferrari, Morgan and BMW factories. I took care of my 1995
M3
for 15 years with very little dealer help. This includes several difficult mods and trusting the car with my life on tracks all over the Midwest. Before that, I owned a BMW 2002tii for 10 glorious and maddening years. I've owned a 911SC and didn't get along so well with it. It had the older fuel injection, the older cam chain tensioner and shifted like a tractor. Suspension seemed to be shot and I just found the whole car to be expensive to keep and intimidated and not worth it. This CS seems to be a much nicer car to live with.
What I've seen is that the attention to little things like sensible assembly practice and straightforward servicing varies directly with world sales volume. Morgan uses high volume engines that are easy. Only the Morgan parts are strange. Ferrari and Lambo are just plain ridiculous to service although Ferrari is making an effort now to improve that. BMW is a cake-walk. They even put the oil filter on top to avoid contamination when changes are done outside in sandy areas. They have a big following in the middle east.
Porsche
seems to fall somewhere in between BMW and the exotics in difficulty. This oil change seemed very strainght-forward and it was except for this little issue.
If someone gets on here and calls BMWs "grocery getters" again, I may have to come out to California myself and...and....ooooo.
Porsche
does a lot of things right and I love this car, but after servicing the BMW for so long, it's very difficult to get my head around some of the things I've seen on the CS. I anticipate some accessibilty issues with the mid engine. I'm saving some of the bigger plans for winter. I just want to get the basics down now and I'm leaving the car stock for a while until we're better acquainted.
My first visit "behind the curtain" was to put in a factory CDC-4 disc changer that I bought from one of the members. I would describe that as an adventure in patience. Would have been much easier to put in the Denison iPod adapter and I would have gone that way had I known.
I'm sure any "bumbling engineer" worth his salt will agree that some things can always be improved. The
M3
was also far from perfect, but in different ways.
I'm just getting frustrated with every little procedure taking so much longer than it should even after much reading and study and having the right tools. I'm sure I'll warm up to the mechanical logic of this car eventually.
When it comes to my hobby car, I don't buy and flip. If I like it, I pretty much marry it, buying the tools and the right mods and making it my own to care for. There's this beginning part where one decides if the car is worth it or not and that's where I am. My intention is to own this CS for a long time.
Just thought I'd check to see if the group might have run into this before I ended up buying a new pan. I got it solved, so no problems and don't expect any again. Tightened to exactly 37 ft. lbs. with a new crush washer, added my 8.2 quarts and all seems to be well.
-Six
I got my filter from
Suncoast
as well. It's a
Porsche
branded filter.
These are soft aluminum flat washers. They are designed to squish under the plug. There are three benefits.
The first is that it helps to seal the plug.
The second is that it allows a little leeway in tightening the plug without damaging threads.
Third is that it acts as sort of a lock washer to keep the plug on.
All of them I've seen prior to this are less "fat". That is, the I.D. and O.D. are closer to the same size. The smaller ones squish easier and allow the plug to have a lower torque. Both seem to work fine. I've never had one come out. I used much less torque on my BMW and never had an issue, but this seems to work fine too now that the old one is out.
-Six
Re: How To: Ramps
Related Comment:
I did my first oil change a week ago. A snap because I built two
10 foot long platforms
plus 4 foot folding ramp sections to raise the car. They work the nuts! Now I can get under anywhere and the car is level.
Agreed. I can't imagine what the prior mechanic did to fuse that washer to the pan like that. Yikes... I use a Snap On torque wrench to make sure mine is tightened to exactly 37 ft.lbs.. All of mine have come off with zero effort. I suspect your next one will too.
I've done a lot of things to my Cayman already, including 5 exhaust changes. Getting those exhaust flange nuts off is a real pain in the butt, but everything else has been a piece of cake for me, including this:
Just changed my oil, flushed brakes and clutch with ATE Blue. Regarding the crush washer, it appears to be identical to the volvo ones. Volvo tend to deform the washer a bit, the CS didn't. I bought a few from the dealer, but have a bunch of volvo one lying around still.
Flushing was fairly easy using a motive pressure bleeder and my two post lift. Only problem was the drain hose I was using liked to suck in air unless pressed tight to the nipple, couldn't figure out where all the bubbles were coming from initially. Nonethe less, used less than 1 liter to flush.
Wong:
Search "Super Blue" on the forum to find the bit about the guy who had his warranty claim denied when they saw blue brake fluid in his brake lines. If you like ATE, use Type 200 instead...Same stuff, but no blue dye. I used it for years in the
M3
after struggling with Castrol LMA for years before.
Since I've been on this site, I've read about Motul, which costs only a little more and has much higher wet and dry boiling points. If you're going to track, this is the stuff. The only thing better is the Castrol at $150 a quart.
I've always used a vacuum bleeder, but I saw one of these Motive units used at a track event and was impressed with how simple it was, so I bought one. If nothing else, it will shrink my carbon footprint as I won't have to run the compressor to bleed brakes anymore.
Bubbles happen. All that line down at the nipple does is route the fluid into your catch container. It's never a perfect seal around there.
I've got braided lines ordered and I'm waiting for them before flushing my brake lines.
-Six
I used the blue because while flushing a volvo, I had no idea when it was new fluid or the old. With the blue, I have a color indication. If I have a brake problem, I will definitely flush with ATE 200 beforehand.
Regarding a stream of bubbles in the brake bleed drain hose...
If you raise your bleed drain hose and bottle above the bleed screw, you will ensure positive pressure at the bleed screw. When the hose and bottle are below the screw, you get negative pressure. Under negative pressure air can seep in around the threads of the bleed screw. This leads one to think that the air is being bled from the system, when instead everything is fine. I took me several brake jobs before I figured this out. Raising the bottle ensures that any leakage around the bleed screw causes fluid to leak out, not air to leak in.
Doug
Will remember this tip
next
time. Will also have to fabricate a bottle. I've been using a large coffee can (old) and running the hose done into it. I should save an old brake fluid container and drill a hole in the cap for the hose.
Next
time around, I guess.
Another tip. Make sure the end of the hose is in the bottom of the bottle. Precludes getting air pulled back into the hose. This is more for manually pumping the brakes than with a pressure bleeder. Having the bottle be transparent is also helpful.
You can also buy these premade for the truly lazy amoungst us.