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Hi,

I couldn't see your picture. The link took me to a page that said the pic was unavailable.

As for your problems, first the distributor/timing issue. Yes you can put the distributor in wrong. Even if you insert it right, you will still need to have it in the right spot in the adjustment slide before you tighten the bolt in order for the motor to run properly. If your car starts and runs (albeit rough) then you must be somewhat close to the correct timing. You will need a timing light to set it properly. You mentioned not being able to find the timing marks on the belt. What marks and what belt are you referring to? The mark I used was on the crankshaft pully and the degree indicators were on the timing belt cover on the driver's side top of the crank shaft pully.

As for your overheating problem, if you have changed the thermostat recently, did you get the air out of the system after you installed the new thermostat? If you just installed a new thermostat and sealed everything back up, then I think you would have air in your system which would cause the overheating you are describing.

Please let me know what your situation is regarding these questions and I will see what idea's I can come up with.

Also, if you want to look at my 83's vacuum line routing, you can find a pretty decent set of pictures here:

http://sailfish.exis.net/~sfsound/supra_page/fuel_leak/fuel_leak.html
 

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Thanks Hawaiian,

I can see the pic now.
 

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Mk2Racer,

Thanks for the update. OK, The photo of the sensor that broke. Was the sensor located on the bottom of the air chamber where it bolts to the intake runners with 2 vacuum lines plugging into it from the metal multi-tube vacuum routing assembly? If so, it is the Vacuum Switching Valve for Exhaust Gas Recirculation (according to page EC-3 of my Shop Manual). I do not know exactly what that is, or does, though. But you should be able to ask a dealer if you can still buy one new from them. If that is not it, then tell me where it was, and I will look it up in my manual as best I can for you.

As far as your over heating problem, I have heard more than one person say that it is best to elevate the front of the car, and almost all discussions included the advice to run the heater while "burping" the system. So, that may be a possible fix for you.

As for the timing marks, the only ones I know of are a notch in the crankshaft pully and the degree indicators on the lower timing belt cover on the drivers side just above the crankshaft pully.
 

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The item in your picture is the item I was referring to. That is the Vacuum Switching Valve (VSV) for your EGR system. To the best of my knowledge, an EGR system failure cannot cause your car to overheat, it can only cause you to have lots of emmissions and a rough idle and loss of power. I believe that your overheating problem is being caused by something else.

My first suggestion is to inspect the water pump weep holes to see if the bearings are gone. You cans also look for leaks around the pump and take the belt off the water pump and see if it turns freely.

My second suggestion is to drain the radiator, then refill and purge with the front elevated. I think you just need the front high enough that the radiator cap is above the engine. This is a possible cheap fix, and I would do this before spending any real money. If it dosen't help then your not out much.

My third suggestion is to remove the thermostat completely and see if your overheating situation goes away. If it does then you know your thermostat is bad. If you car runs a lot longer before overheating, then you either have a leak, a bad water pump, or a clogged up radiator.

Let me know what you find.
 

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Happy to hear your problem is solved! Helping each other solve problems is what this board is all about (IMHO anyway). :wink:
 
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