When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Drove the new 86.5 for the first time Saturday after it sitting for 14 years, sprung a leak from one of the PS hoses (couldn't tell which one) which announced itself with smoke out the driver's side of the hood. Spent yesterday R&R'ing and cleaning the PS hoses, reservoir, pump and generally the front left quadrant of the engine bay. I hate ATF....
Drove the new 86.5 for the first time Saturday after it sitting for 14 years, sprung a leak from one of the PS hoses (couldn't tell which one) which announced itself with smoke out the driver's side of the hood. Spent yesterday R&R'ing and cleaning the PS hoses, reservoir, pump and generally the front left quadrant of the engine bay. I hate ATF....
I can surely feel with you here. Having completed a service and overhaul of the PS system last week, I don't want to do that again sometime soon. I hate ATF too... ... But now no leaks and the hoses firesleeved, worth it but not fun...
This is the first S3 I have ever worked on- I have to hand it to the S3 guys, this is the most challenging engine compartment in all of 928dom. Amazing they could package everything like this in the era before 3D CAD/CAM design.
I wasn't expecting the MAF to come off with the airbox. I guess it just seals into the air guide on the big o-ring. I wonder how many air leaks happen there after 38 years....
This is the first S3 I have ever worked on- I have to hand it to the S3 guys, this is the most challenging engine compartment in all of 928dom. Amazing they could package everything like this in the era before 3D CAD/CAM design.
I wasn't expecting the MAF to come off with the airbox. I guess it just seals into the air guide on the big o-ring. I wonder how many air leaks happen there after 38 years....
The S3 is a reason why I bought a 1/4" electric ratchet, and why I have multiple 10mm and 8mm sockets (because those sockets are prone to fly across the garage or get lost for a while when you need them, only to be fished out later after removing a few things.)
The MAF O-ring was a surprise for me also. After 38 years, mine came out with the same consistency of those plastic tires on model cars. A nice new O-ring helped to seal things up.
I wasn't expecting the MAF to come off with the airbox. I guess it just seals into the air guide on the big o-ring. I wonder how many air leaks happen there after 38 years....
Replacing that o-ring for a customer left him with a grin from ear to ear. Transformative.
Put in the most expensive tank of fuel I've ever paid for - both total and per liter - and went for a drive on all my favorite local roads, with a nice lunch.
I expect the next tank will beat the record
Hello, been working on my 87 timing belt/water pump. Did I tell you how much fun it is? Actually it hasn't been that bad...I just hope I can remember where everything goes! Engine hasn't been run in quite a while so I'm also going to replace the crank seal and the oil pump seal while I'm there.
I wasn't expecting the MAF to come off with the airbox. I guess it just seals into the air guide on the big o-ring. I wonder how many air leaks happen there after 38 years....
A new large o-ring makes inserting the MAF challenging. Lube the MAF with the Dow Corning stuff Stan likes.
Note that there should be TWO o-rings. The big one which lives inside the TB housing and a smaller one which goes on the MAF which fits into the bevel on the TB housing opening. (See photo below.) PET is confusing as it shows the o-rings to be similar sized. I think the small one is intended to keep grit out of the space above the large o-ring.
Also note the alignment nub on the MAF and TB housing which aligns the plug correctly and makes the CO adjustment hole reachable with a swiveling hex tool.
Note that there should be TWO o-rings. The big one which lives inside the TB housing and a smaller one which goes on the MAF which fits into the bevel on the TB housing opening. (See photo below.) PET is confusing as it shows the o-rings to be similar sized. I think the small one is intended to keep grit out of the space above the large o-ring.
Thanks for this! When I got the car, it didn't have the thinner O-ring on the MAF. When I replaced the MAF, I didn't put one back. I just ordered the thinner one. Not expensive at all, but definitely an oversight on my part!
I'm just an unfrozen caveman 5-speed driver, your complicated transmissions frighten and confuse me. What operating temp do people use to measure ATF levels in that mysterious reservoir with all the level marks on it?
Installed an electric Heater Control Valve that defaults to closed when not energized to replace the vacuum actuated one. This will prevent heat soak into the heater core in the summer after the car is driven then shut down. I won't have to pull the airbox each spring to wire tie the valve closed, then again in the fall to remove the wire ties.
Valve installed in place of normal HCV
Button switch installed in corner of under pod trim piece energizes the valve to open it when I want heat from the HVAC system.
Just fits without contact with any metal lines, the firewall, or the bottom of the lower airbox
Oh joy... I'm currently restoring the back seat, changing speakers, some wiring etc. I'm going to put wide velcro strips to hold the seatpads instead of gluing them down with contact adhesive. Much easier if they need to come out again. I'm still baffeled that porsche used the "glue down" method to mount the seats. But before this I needed to remove all the old glue from the pads and seatwells. This was almost as fun as removing glue from the hood.... More than an hour to remove the thicker gluelayers with your bare fingers, I didn't dare to use any heavy chemicals on the old vinyl. And then more time with "label off" in order to clean the thinner layers. My thumbs are shot now but they are ready for mounting tomorrow.....
Call me lazy but I just lay rear lower seat cushions in there without any adhesive or fastening. No one is ever going to sit in them and they're just going to have to come out at some point for cleaning/rear quarter panel R&R/whatever, might as well make it easy.
Now someone will steal my rear seat cushions at the next Cars & Coffee...
I wasn't expecting the MAF to come off with the airbox. I guess it just seals into the air guide on the big o-ring. I wonder how many air leaks happen there after 38 years....
I apply DC111 to that o-ring. It seems to seal okay once the airbox is seated back on the two studs. That seal hasn't been an issue for me, but there are many, many other opportunities for S3 vacuum leaks. You will find them.
03-18-2024, 12:31 PM
... But now no leaks and the hoses firesleeved, worth it but not fun...
