nilknarf007 Posted March 20, 2020 Author Share Posted March 20, 2020 Welcome Rob! When you checked the timing did you remove the SPark OUT plug? If not, you're not really checking base timing. Much like if you were to check a conventional distributor without disconnecting or clamping the vacuum hose. Not meaning to question your ability, just gathering clues. I didn't think of that. I know where it should be, but I can't find it. Can you help me find it? Link to comment Share on other sites More sharing options...
1986F150Six Posted March 20, 2020 Share Posted March 20, 2020 I didn't think of that. I know where it should be, but I can't find it. Can you help me find it? Look at the 1st and 2nd photo of this eBay ad. It is to between the EGR valve and the rear of the engine. https://www.ebay.com/itm/Intake-Manifold-4-9L-6-300-Fits-77-78-80-86-FORD-E350-VAN-666586/143559706231?fits=Engine+-+Liter_Display%3A4.9L%7CMake%3AFord&hash=item216cd34677:g:1bIAAOSwGFVec83R It looks kind of like this one, but is longer with a few more ports. https://www.ebay.com/itm/NOS-1986-Ford-Escort-1-9L-Intake-Manifold-Vacuum-Fitting-E6FZ-9A474-G/163818440343?epid=17003044832&hash=item2624570697:g:A0AAAOSwjvxdSrGD Link to comment Share on other sites More sharing options...
nilknarf007 Posted March 20, 2020 Author Share Posted March 20, 2020 Note that under the carburetor on the passenger side is a "vacuum tree" which has about 6 or 7 ports. This is attached to the intake manifold. Not all ports are used and some are covered with a rubber cap. During the years, the heat and exposure to the atmosphere reeks havoc on the rubber and it hardens and cracks or falls off. I have found on my son's 1984 and my 1986 [both with 4.9L], that there is one particular cap which is hidden by the "spaghetti" of vacuum hoses on the passenger side. This particular port is nearest the intake manifold and nearest the exhaust manifold [heat source]. On mine, it had cracked; on my son's, it had a large opening in the center. Be sure to look closely at that one. By the way, that smoke test was on a 1984 with the feedback emissions system still in operation [original]. Wow, you were right. I had one on the vaccum tree that I couldn't see. Smoke test revealed it pretty quickly. Smoke test revealed a couple of other leaks, so I've got all of that taken care of. Now if I can find the "advance plug" that needs to be removed so I can time it properly, I should be on the right track. I've looked online for the location, I mine is obviously not where it should be, if I have one at all. Any help with that? Link to comment Share on other sites More sharing options...
nilknarf007 Posted March 20, 2020 Author Share Posted March 20, 2020 Look at the 1st and 2nd photo of this eBay ad. It is to between the EGR valve and the rear of the engine. https://www.ebay.com/itm/Intake-Manifold-4-9L-6-300-Fits-77-78-80-86-FORD-E350-VAN-666586/143559706231?fits=Engine+-+Liter_Display%3A4.9L%7CMake%3AFord&hash=item216cd34677:g:1bIAAOSwGFVec83R It looks kind of like this one, but is longer with a few more ports. https://www.ebay.com/itm/NOS-1986-Ford-Escort-1-9L-Intake-Manifold-Vacuum-Fitting-E6FZ-9A474-G/163818440343?epid=17003044832&hash=item2624570697:g:A0AAAOSwjvxdSrGD Oh, I got the vacuum tree. I was referring to the "advance plug" you're supposed to remove before you time it. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted March 20, 2020 Share Posted March 20, 2020 Oh, I got the vacuum tree. I was referring to the "advance plug" you're supposed to remove before you time it. If I'm reading the 1985 EVTM correctly you're looking for wire 324. It is yellow/light green dashed, and Connector 109 is near the computer module, past where the cable sheath is grounded. Someone else with more 4.9l experience may correct me. But I believe 324 is the SPark OUT circuit (at least from the notes an the end of the engine control section) Link to comment Share on other sites More sharing options...
Gary Lewis Posted March 20, 2020 Share Posted March 20, 2020 Oh, I got the vacuum tree. I was referring to the "advance plug" you're supposed to remove before you time it. I think Jim is right, but I sure can't find something that says definitively. Not even in the shop manual. Link to comment Share on other sites More sharing options...
1986F150Six Posted March 20, 2020 Share Posted March 20, 2020 Oh, I got the vacuum tree. I was referring to the "advance plug" you're supposed to remove before you time it. See if you can open this link? The SPOUT can be seen in this photo. http://img.photobucket.com/albums/v361/Wisdumb00/spout.jpg Link to comment Share on other sites More sharing options...
Gary Lewis Posted March 20, 2020 Share Posted March 20, 2020 See if you can open this link? The SPOUT can be seen in this photo. http://img.photobucket.com/albums/v361/Wisdumb00/spout.jpg Since that's on Photobucket, which seems to have a hole in it, let's put it here: Link to comment Share on other sites More sharing options...
1986F150Six Posted March 20, 2020 Share Posted March 20, 2020 Since that's on Photobucket, which seems to have a hole in it, let's put it here: Thank you, Gary. Have a nice weekend! Link to comment Share on other sites More sharing options...
1986F150Six Posted March 20, 2020 Share Posted March 20, 2020 Thank you, Gary. Have a nice weekend! The carburetor most likely has, in the past, been adjusted to run with all the extra air [vacuum leaks] coming in. It will require some adjustments to run correctly. Link to comment Share on other sites More sharing options...
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