Auction: 1987 Porsche 928 GTS

[samuel balmer]

https://www.pistonheads.com/buy/auction/16783663

[JMBMWM5]

THE 928 GTS came out in 1991 so thats not a GTS I had one in 1995.

[BikeSausage]

I think you’re right. Now labelled as an S4

[Pagno66]

Just for info, your intake tubes are reversed; there's a hole in the smooth part between the two ribbed sections that is the breather for the cam belt covers. Your air filter appears to be upside down also. There's usually an arrow on one end that shows direction of air flow, it should point down.
Minor things but important to the overall standard on a low mile car.

[Dave Marsden]

Hello,

This is Dave from PistonHeads, just replying to your message, thank you for taking the time to mention this. I have had a chat with the seller and we also have feedback from his local Porsche Specialist that the configuration is as it should be for this model and engine type. However if you have any extra insight or images as to how it should be, that would be very useful to see as well, so please feel free to share.

Best wishes
Dave

[desmadronic]

Hi, when was the cam belt and water pump last changed ?

[JMBMWM5]

It smells a suspicious mileage wise to me.
I've had two 928's.

[Pagno66]

Hi Dave,

I'm not able to post links to an image, there is a good one on wikimedia of a Porsche 928 S4 engine bay, this is an S4 not a GTS as listed, the later car had foam covered intake tubes.
If you can see the image...
The intake tubes are orientated this way as the direction of the narrowed section reduces intake noise and as I say the small hole (which you can't see) in the tube connects with the timing belt cover vents.
look closely at the centre of the orange air filter, there is a raised rectangle in the moulding which should point to the engine. The filter has a flat and curved surface, the latter should face up, again you can't see the filter surface, the rectangle is the clue.
I know because I work on these specifically and have owned many over the years.
In the scheme of things, not a huge problem but I'd find a different specialist.

[Castrol for a knave]

Here's one I prepared earlier.

Air intakes by Valeo, car model's own.



and

[Pagno66]

Thanks for posting Castrol. Lovely looking engine bay.
It clearly illustrates the difference.
Very easy to rectify.
Good luck with the sale.