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Porsche 997 and 981 front coolant hoses. What goes wrong?
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- Опубліковано 14 лип 2021
- A video showing how we changed the coolant pipes including the metal crossover pipes on a Porsche 997 model 911 recently. The job will essentially be the same for a 981 model Porsche Boxster or Cayman.
911virgin are based just outside Uxbridge in the UK and have been buying and selling Porsches for over 25 years
I had this done when I bought my 997.1 a couple of years ago, excellent vid, I now understand what they did!
I think in another comment you say budget 2-4k pa for maintenance and that's spot on to what I have found. It explains why good dealer cars tend to be a few k more than private!
We see a lot of cars that need a substantial amount of work doing but still drive so owners are oblivious.
Great info Henry, anymore content on the 964 RS in the pipeline👍
I must be honest and say that we've been quite busy doing other things of late. The engine is back together, the car has been fully stripped and is in primer, I've had the brake calipers overhauled, need to get the suspension components sorted out and a few other jobs. The next video will be a trip back to see Steve at Jaz to go through what was done to the engine.
Many thanks for this. Very helpful. Just done mine on a 2007. Identical issue.
No worries
In order to prevent future corrosion due to electrochemical incompatibility of iron and aluminum you should apply ceramic paste (non conductive obviously) between the joints to prevent or at least prolong the next corrosion period. (Drive a 997.1 build in 06/2005)
Hi, How much would you charge for all of the hoses on my 997.1 C2S to be changed please. Great video as well
Had them done recently on my cayman 987, not cheap but needed doing as you described eloquently. My car is a 2008 so surprised they lasted that long
Thanks for that. Hopefully you're all sorted for a while now.
Wouldn't it be a good idea to smear some vaseline on that fitting before it goes back in, it won't destroy the O ring and should help prevent corrosion to those new expensive parts.
Hi there Stephen. I suspect the vaseline would melt and run off. It gets to around 90 degrees centigrade when up and running. We do use a rubber grease when re-assembling which helps a bit and the pipes have also been re-designed which may help delay problems moving forwards.
@@911virgin8 vaseline is petroleum based and will react with the rubber, you'll be better off with silicone grease, which has a much higher temperature range too, typically 200*C+
Had to have this done on a 997, you'd think some lube of some sort would help stop that corrosion but we must remember these cars are old now.
As you say these are potentially 15 year old plus cars now
Great video, I sometimes wonder about this kind of work when I see folks bidding big $ on Bring A Trailer in the US for a car on the other side of the country. Smart cookies will ask for a Pre-purchase Inspection, but do they go this deep? Suspect it depends on the mechanic offering the PPI service. Digression, what is the intro music?
PPI on Porsche pays 1 hour. Nowhere near enough to drop all underbody panels and look deep inside Sadly.
I've got a 2010 987.2 Cayman S and was anything changed in production to where I won't be seeing this? Is this caused by winter salt roads or the dissimilar metals, as right now I see no signs of this problem?
Yes, it's the same set up so potentially an issue. In terms of why, I guess partly a materials issue and partly the environment. The latter will mean that not all cars suffer to the same degree. Judge it on an individual basis, it's easy enough to spot when the car's up on a ramp.
Helpful. Thank you.
Glad you found it useful
I’m in the process of refreshing/updating my coolant system (water pump, low temp T-stat, 3rd radiator, new hoses) here in the US and I saw none of this on my 2006 Carrera S. I replaced a few of those hoses anyway because 16 year old rubber is 16 years old. But no corrosion. I even asked this question on the US Rennlist forums and nobody over here experienced this. Must be something about the UK climate.
There will certainly be a correlation between climate and corrosion. We also use salt on UK roads in winter which won't help.
@@911virgin8 maybe there are enough cases that we hear about them in the parts of the country where we have cold, salty air or something. But here in the US we have a variety of climates, and up north they frequently salt the roads. Still, haven’t heard of any cases. Just odd.
@@K1dPhresh1 Very strange indeed. It is possible that US law dictates using a different type of antifreeze but I've not hear of that.
One of life's mysteries.....
@@911virgin8 Indeed!
Across the pond corrosion ! I don’t drive my car in the winter so hopefully not having this . Currently tracking down coolant loss
Good video.
Thanks !
If this was a keeper, are there other items that should just be replaced as good practice while you have the sub frame out?
Not really, it isn't a massive job to drop the front subframe, it isn't like dropping the gearbox to do a clutch. Whilst you're in the vicinity it's worth checking the coolant radiators and air conditioning condensers.
How much would that cost roughly at a Porsche specialist ? Good video 👍
Labour wise it's about four hours plus a 4 wheel alignment. We charge £85 per hour. The hoses are from Porsche, I think they total around £250 off the top of my head, possibly a touch under that.
@@911virgin8 Thank you good to know
Great vid - thanks. Is this the same on the 987 too?
Hi there. Sorry for the delay in responding. Yes, 987 Boxster / Cayman will be the same.
another good vid, why is this not an issue on a 996?
The 996 is quite different to a 997 in that it doesn't use snap connectors other than for the radiator it's self. Before you get too excited though whatever you might save on coolant hoses will be more than accounted for on the 996's brake pipes. The right rear caliper feed pipe from the junction left hand side 3/4 back which goes over the top of the gearbox is a particularly tricky little blighter!! Make sure you check those brake lines whenever you're doing a clutch. The perfect time, it will save you around 3-4 hours labour.
Classic VAG cheapskatery. They are very nice and easy to connect and disconnect though
What are the symptoms? Obviously you don't just wake up one morning and think i will change the hoses.
You would see leaking / corrosion around the hose joints and make a call based on that.