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Thank you for the Factory books
Hi Kaia, Thanks for the Ponton Sedan 219 220S Factory Book Set. I have got two Pontons, a 1959 219 and a 1959 220s. I intend to restore the 220s to show co... Read More
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Shut off valve
My 1985 wagon shuts down fine after running for a while (i guess pressure is building up). But after my mechanic replaced the steering box, i have to shut her down with the manual switch on the engine. I've checked both vacuum hoses from the shut off valve on the fuel pump to the ignition switch and they're connected fine. The problem is, there's a 3rd hose coming from that shut off valve on the fuel pump that goes through the firewall -and it's disconnected. Do you know where that's supposed to hook up?
There's also another plastic vacuum line coming from a black, flying saucer thing (front left engine compartment, not the blue saucer thing) which goes through the firewall. It also leads to nowhere under the dash. Any ideas?
Thanks!
Lets start with some basic checks
Hi Jim, The two lines that are going under your dash are vent lines (they have to be vented inside the car to avoid being pressurized in the engine compartment). They are not your problem.
From your description you may be getting the valves confused. The shutoff valve only has one line connected to it. Refer back to my Vacuum Source troubleshooting guide as I walk you through some checks. Here are some key points as you go through the tests in your system.
1. Your current problem may or may not be connected to the work just done. For instance your shutoff valve could have decided to failed when you drove it home from the shop.
2. Test main vacuum source first from T in main line - what is the reading?
3. Connect your hand pump directly to the engine shut off valve. Start the engine and pump. The engine should shut off abruptly in 2 to 4 hand pumps. If not replace the valve.
4. If engine shuts off abruptly AND you have good vacuum in the system (as tested in no. 1 above) then you have a leak. Check all rubber connections first. Most common leak to cause this problem is in your door lock system.
5. You can narrow down the leak by procedures outlined in the manual.
Let us know what you find out. Kent
Shut off valve
"3. Connect your hand pump directly to the engine shut off valve. Start the engine and pump."
I assume you connect the pump to the top connection on the valve which is connected to a line off the main vacuum line in engine compartment?