991.2 GT3 deep water wading tolerance
991.2 GT3 deep water wading tolerance
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Discussion

MARTIN993

Original Poster:

75 posts

187 months

Thursday 14th January 2021
quotequote all
Drove through a puddle this evening that turned out to be A LOT deeper than anticipated...

Afterwards strange noises from engine and undercarriage which lasted 15 minutes or so.

Guess water was 8/10” deep.

Is this a worry?

Pope

2,653 posts

270 months

Thursday 14th January 2021
quotequote all
8/10"'s that's nearly up to the centre caps frown

External components are waterproofed but any breathers/vents could have been compromised - especially if driving through caused any pressure or channelling - especially above undertrays.

The crank pulley would've been in/under water; as would part of the exhaust and suspension. The drivebelt would've taken the water round with it so maybe a cause of noises?

I would advise having a look round underneath/in the engine bay to make sure it's visually OK. Have seen transmission breathers take on water in similar circumstances - if the water level can be seen to have got that far might be worth looking further?

Cheib

25,072 posts

198 months

Thursday 14th January 2021
quotequote all
At the very least I’d got on the phone to a specialist who is used to dealing with GT cars or get one of the service advisors at your OPC to speak to a senior mechanic. I wouldn’t drive it until I knew to be honest. Good for you for driving it in this weather ! Mine is tucked up in the garage.

MARTIN993

Original Poster:

75 posts

187 months

Thursday 14th January 2021
quotequote all
Thanks for the replies gents

My daily (Alpina Touring) has a flat tyre so double car woes today!

The exhaust was definitely submerged : the puddle was hiding the trough of a dip in the road.

I’ll get it checked over for peace of mind

MARTIN993

Original Poster:

75 posts

187 months

Thursday 14th January 2021
quotequote all
Pope said:
8/10"'s that's nearly up to the centre caps frown

External components are waterproofed but any breathers/vents could have been compromised - especially if driving through caused any pressure or channelling - especially above undertrays.

The crank pulley would've been in/under water; as would part of the exhaust and suspension. The drivebelt would've taken the water round with it so maybe a cause of noises?

I would advise having a look round underneath/in the engine bay to make sure it's visually OK. Have seen transmission breathers take on water in similar circumstances - if the water level can be seen to have got that far might be worth looking further?
Do you know where the transmission breathers are on these?

nunpuncher

3,706 posts

148 months

Friday 15th January 2021
quotequote all
Can't imagine it'll have done any damage. The electrical connections are all weather sealed otherwise heavy rain would be an issue. The intake is on the top of the engine so not deep enough to get in and even the coils are above 10" from the floor. Slightly submerging the exhaust won't cause any damage.

I'd imagine any noise will just have been a bit of puddle grit in drive belts/pulleys maybe even a bit of grit in the brakes causing noise.

Yellow491

3,358 posts

142 months

Friday 15th January 2021
quotequote all
Listen to the pope was a senior engineer opc,its goid advice.

Steve Rance

5,453 posts

254 months

Friday 15th January 2021
quotequote all
Ditto. You really need to get that checked ASAP. You need to establish if there is any hydrolock damage very quickly. I thought that id got away with it in a similar situation in my 993 race car (garage flood) but I ended up having to rebuild the whole engine.

Digga

46,436 posts

306 months

Friday 15th January 2021
quotequote all
nunpuncher said:
The intake is on the top of the engine so not deep enough to get in and even the coils are above 10" from the floor.
Hopefully, but it depends if the rear PU channeled or scooped any water further up, in the same way you can get a bow wave at the front of the car.

g7jhp

7,026 posts

261 months

Friday 15th January 2021
quotequote all
Surely a 991.2 GT3 should be fine as it's watercooled! getmecoat

(Hope it's OK)

hunter 66

4,190 posts

243 months

Friday 15th January 2021
quotequote all
As long as on Cup 2..... they are better in the wet

Digga

46,436 posts

306 months

Friday 15th January 2021
quotequote all
Years ago Mrs Digga stranded her Alfa boxer in a flood on the way home from the office. Just as she was wondering how on earth she was going to walk through 1ft of water in high heels, a gang of local, enterprising kids splashed up and promptly did a deal (cash of course) to push the car out.

It wouldn't start though, so she rang me and I fetched the company Hilux. I knew something was amiss when it twice failed to pull-start the little Alfa.

AA was summoned and removed the plugs (I should have thought of that), asked her to crank the engine on the key and was promptly hosed down with 1.6 litres of floodwater. hehe

Plugs replaced, car started and ran sweet as a nut.

Pope

2,653 posts

270 months

Monday 25th January 2021
quotequote all
MARTIN993 said:
Pope said:
8/10"'s that's nearly up to the centre caps frown

External components are waterproofed but any breathers/vents could have been compromised - especially if driving through caused any pressure or channelling - especially above undertrays.

The crank pulley would've been in/under water; as would part of the exhaust and suspension. The drivebelt would've taken the water round with it so maybe a cause of noises?

I would advise having a look round underneath/in the engine bay to make sure it's visually OK. Have seen transmission breathers take on water in similar circumstances - if the water level can be seen to have got that far might be worth looking further?
Do you know where the transmission breathers are on these?
Above the transmission, centre of the car - they are capped but only splash proof. My worry would be the NACA style ducting in the undertrays would channel water very effectively right where the air would go....

Likely there will be no issue but better safe than sorry.

Let us know how you get on.