Windshield washing woes continue. The pump had ceased pumping, I removed it and got it working again. Some comments if someone else needs to do the same.
Various photos.
With these tricks this is probably only be an hour job, if that.
- The scrivets (plastic trim screws) that Tesla used on this car are stunningly terrible. They're easier to remove if you put a little Windex around where the screw head meets the washer. Its a lubricant that won't hang around which seems wise in this application. Assume the screwdriver isn't going to work initially you'll just strip the head. Grip the sides of the screw head with pliers and give it a few twists to loosen it up. Assume you'll probably just need to replace the scrivets...
- Replace your scrivets with Honda part number 91512-SX0-003, these are the pop type rather than the screw type. Your life will be better. They're a good size match and will be much easier to remove later, they'll probably even be reusable. I didn't bother to track down the Tesla part number for their scrivets.
- The tank doesn't come out easily. You'll need to use a bit of force to get it to pop out there in my case it was slightly larger than the opening. The tank plastic is flexible, should be fine. You'll want to disconnect the power cable and hose before attempting to remove it. The tank appears to be a custom Tesla part.
- There is a rubber strainer in the tank, it also seals the pump to the tank body, without it the tank wont seal at all. You can only clean it by removing the entire tank and the pump. Its likely this will need to replaced at some point. It doesn't seem to have a part number in the Tesla database, its possible its included as part of the pump or tank. No clue if there is a matching Lotus part number, doesn't appear in their diagrams.
- Check to see if your pump is bound up, if you look at the pictures the pick up tube has a white bit of plastic in the center of it. Use a pair of needle nose pliers to gently rotate it manually, it may free up the motor and the pump might start working again. Mine did. Some of the junk these tanks grow is thready or hair like, I suspect the spindle just bound up.
- The pump doesn't have a part number on it, mine's only marking is AIP LTD. The Telsa part number for the part is 6005133, I have no idea what they'd charge for it. However, its really a Lotus part (shocking, I know). Lotus used two different style pumps, only one will fit in the Roadster, its the old one. One Lotus parts side remarked: "The S1 and early 'K' Series S2 usually has the pump connector at the side". I believe these part Lotus numbers are correct: A111M6047S, A132U6027H, A120M6058F, A132U6108H. If you check the diagram in the album I linked, the appropriate pump is marked #23. I purchased a spare from a Chinese Manufacturer/Seller on eBay for $10.
- Order yourself a new check valve, you'll almost certainly need to replace it. It lives up near the windshield. I don't believe there is anything but hose between the pump and this valve. Alternatively, replace the check valve with a splice, you'll pick up a bit more output and pressure at the cost of some additional pumping time.
Hope that helps.
