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981 Drain Holes

kitchens

PCGB Member
Member
I am sure it has ben discussed many times ..does some one have pictures as to exactly where they are placed and how many ...having just Fabsil Gold with 2 coats and sure the water will bead well but some must find its way into drain holes ...so any pics please .I have a fine piece of curtain wire to use the old net type .
 
Seems a bit extreme taking half the car apart .thought the holes where more easy to locate but thanks for your impute.

 
Agree, there must be an easier way?

My drains on my 987.2 are all cleanable without any part removals that require tools, all factory turn screws.

6 drain hols all easy to 'poke' through.

 
kitchens said:
Seems a bit extreme taking half the car apart .thought the holes where more easy to locate but thanks for your impute.
Having seen several approaches to this 981 feature, it's going to be a firm question from me at service time. In the past, one OPC told me that checking and cleaning the drain holes was an included part of their body checks, even though not mentioned on the service book list of jobs, but that was several years ago and not an OPC I would particularly trust. At the time I didn't ask how. Since then I've seen the US OPC service schedule which definitely lists checking and clearing the drains as a service task, but again doesn't say how. Because I have extended warranty I will be using my currently favoured OPC for the next service and I will be asking about it - as this OPC has in the past happily sent me video of parts of the car I can't normally see, that seems like an obvious request relating to the condition of the drains. For those using Indies for service, it might be worth asking them whether it's included, and how.

 
Having just watched video I definitely won’t be taking my car apart 😱 I was told by my OPC that there are only 2 drain holes on the 981 models which are in hood compartment as shown on video one on each side. 987 also had some in front but the design of scuttle panel of 981 allows water to drain away without the need of small pipes 👍

If you lower the hood but stop just before the plastic flaps shut and with the aid of a torch you will be able to see the top of drain pipe sitting in bottom of well towards the front. On my car there is No pipe from top rail to drain on drivers side which makes it easy to see, on passenger side as shown on video, you will need to move rubber pipe to be able to see drain. All I did to check was pour a little water into compartment and it immediately flowed out from in front of rear wheels. Interestingly if your car is facing downhill you will also get water coming out behind front wheels, I am told the water runs along sill 😂

Hope you can follow my ramble.

 
BrianJ said:
kitchens said:
Seems a bit extreme taking half the car apart .thought the holes where more easy to locate but thanks for your impute.
Having seen several approaches to this 981 feature, it's going to be a firm question from me at service time. In the past, one OPC told me that checking and cleaning the drain holes was an included part of their body checks, even though not mentioned on the service book list of jobs, but that was several years ago and not an OPC I would particularly trust. At the time I didn't ask how. Since then I've seen the US OPC service schedule which definitely lists checking and clearing the drains as a service task, but again doesn't say how. Because I have extended warranty I will be using my currently favoured OPC for the next service and I will be asking about it - as this OPC has in the past happily sent me video of parts of the car I can't normally see, that seems like an obvious request relating to the condition of the drains. For those using Indies for service, it might be worth asking them whether it's included, and how.

I have this noted on my 981 Caymans` service paperwork, it is on one of the checklist sheets that accompany the invoice etc.

 
https://www.boxa.net/topic/88231-boxster-981-drain-holes/

Found this on boxta net site very helpful shows a few diy service tips DAZ is a helpful guy seems to answer lot of questions on the site .

Had a look inside the drivers side see the hose but cannot see the hole mentioned ,the hole is visible from passengers side but you cannot put anything down it even a slim piece of wire ,Think will take it to my indy to see if he can get something ...or chance it on passengers side pour a small amount of water down and see if it flows out .

 
The drains are easy to access, you can reach them with the hood down just lift the sprung plastic cover that covers the folding mechanism. There are two small ones in the visible rubber 'block' which are drains from the hood (almost a pipe cleaner job) and the others are at the bottom of the water drain pan. They are quite short...I use a bit of wire to check. As other have said the water ends up in the cill area and runs out with one end or the other. I have attached a screenshot of the parts catalogue exploded image which may help.

My dealer tried to charge me £140 for doing this (on top of the £1100 service...) when I spoke to the service manager he explained what a complicated process it was...I was looking at this diagram thinking something completely different. Eventually it was done FOC. It actually appeared as an item on my last service so it looks like its been acknowledged that if it is essential then it ought to be a scheduled service item.

 
Thanks Alistair, useful diagram, I will now check drain pipe no11. Having MOT Wednesday so will ask OPC if checking drains is included in service.

 
Yes I agree it is extreme and this is what might be needed if the drains lower down get clogged.

As mentioned I vacuum the seals on ours before if necessary. First going around with the roof up, then partly opening it and repeating the process. I also use an adapted tube to extend the vacuum pipe to get into the areas immediately below the roof and to the parts shown in the in the diagram.

If not already posted this is a good video on the prevention rather than cure.

Porsche Maintenance DIY: Easy ways to prevent costly repairs, 981, 718, 991, Boxster Cayman, Spyder

Our independent servicing includes a check of the front and rear drains.

For interest M R Sportscars video shows (again) what the out come of blocked drains needs to resolve the issue.

https://youtu.be/_vYJpXJwPeE

 
Again thanks for everyone's impute the Boxta net Forum one looks the easiest one ..but no way could I remove the areas shown in the last vid ..I actually poured a small amount of water down and it came out both sides no issues car was on slight incline so nothing came out the front end so will try later but happy that water runs free only used around 150 ml down both holes did not want to flood it in case it was blocked .

 
Thought I ought update my thoughts on this, as having watched the MR Sports cars video...and this similar but more detailed one https://youtu.be/Tq7xosRqfIc

(Jeff Richardson)...there is a bit more this than meets the eye.

Checking to see if water exits the area is probably ok, but the thought that crud can get trapped behind the valves at the end of the drain tubes makes me think that the only way to be sure is the strip down. I am now not sure that poking a bit of wire, tube etc is enough, as there are in fact 2 tubes each side, one from the 'bucket' and the other a tube from the hood.

The question for the OPC is perhaps now 'how do you clean out the drains ?' I can see why my OPC implied it was an hours work...even though the Service Managers description of the work was wrong.

Whatever we think about this being 'over the top' the thought of flooding the car's electronics in the footwell is enough for me to be more cautious.

 
My thoughts exactly. Prevention is better than the cure.

In the monsoon that arrived Saturday I could see the rainwater gushing out of the bottom of the wheel arches. Pollen leaves etc soon rot into a mush that can fill the drain points lower down.

Compressed air may force any debris into those weep holes and actually block them. As you say the accessible parts are at the top of the drainage system.

The front needs attention too. Had rainwater into an SLK that seized the ventilation fan. I understand this can happen on a Boxster?

 

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