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| Good day by SDMickey - March 27th 2024 10:55 pm
| | Lew Greger by MufflerMan Mike - March 27th 2024 5:15 pm
| | | Re: 1985 Dodge B150 fails emissions twice! | Joined: Sep 2019 Posts: 42 newbie | OP newbie Joined: Sep 2019 Posts: 42 | | | | Re: 1985 Dodge B150 fails emissions twice! | Joined: Sep 2019 Posts: 42 newbie | OP newbie Joined: Sep 2019 Posts: 42 | A) As of yet, I haven't been able to locate the ballast resistor ("ignition resistor" in the factory service manual). I tested the original coil + lead and it shows 12 volts. Am I missing something?
B) Also, trying to locate the voltage regulator. Possibly inside the alternator? | | | Re: 1985 Dodge B150 fails emissions twice! | Joined: Aug 2001 Posts: 12,107 Likes: 37 Maniac | Maniac Joined: Aug 2001 Posts: 12,107 Likes: 37 | A) lean burn ignition systems do not have a ballast resistor.
B) voltage regulator is a square metal device on ther firewall with an inverted triangle shaped plug with two wires. There is no exact location. I varied based on who assembled the van at the factory.
Windows- they're what make a van worth owning! | | | Re: 1985 Dodge B150 fails emissions twice! | Joined: Sep 2016 Posts: 145 Likes: 8 member | member Joined: Sep 2016 Posts: 145 Likes: 8 | not to butt in here but on my 87 b150 the voltage regulator is directly behind the winshield wiper motor on upper firewall...hope this helps | | | Re: 1985 Dodge B150 fails emissions twice! | Joined: Aug 2001 Posts: 12,107 Likes: 37 Maniac | Maniac Joined: Aug 2001 Posts: 12,107 Likes: 37 | Yup, that is one place it could be. I have seen them all over.
Windows- they're what make a van worth owning! | | | Re: 1985 Dodge B150 fails emissions twice! | Joined: Sep 2019 Posts: 42 newbie | OP newbie Joined: Sep 2019 Posts: 42 | Install complete! It's running pretty darn good too. Thanks guys!
Yet another question: I went to set the timing and figured I could shine my light up from underneath the van because there is a marker mounted there however I could not see my mark on the damper. There doesn't seem to be a way to shine the light down from the top as the power steering pump blocks view. I must being doing it wrong! | | | Re: 1985 Dodge B150 fails emissions twice! | Joined: Aug 2001 Posts: 12,107 Likes: 37 Maniac | Maniac Joined: Aug 2001 Posts: 12,107 Likes: 37 | Congratulations!
There should be a secondary timing tab down on the bottom of the vibration damper. I know Chrysler started putting one there on the vans and some trucks in the early 80s. I used to have an 83 B150 tht had a 318 and it had two timing tabs. You have to pretty much lay on the ground to see the marks. You might have to clean road grime off of it to see the marks. The timing mark on the damper also probably needs to be cleaned up.
Windows- they're what make a van worth owning! | | | Re: 1985 Dodge B150 fails emissions twice! | Joined: Sep 2019 Posts: 42 newbie | OP newbie Joined: Sep 2019 Posts: 42 | I did clean things up and there seems to be four marks (grooves/slots) equally spaced around the damper. 3 of them are slotted half way through the width of the damper. 1 of them is slotted all the way through the width of the damper (this one has numbers etched-in before and after the slot like a ruler.) When I shine the timing light on the damper from underneath the van at idol, none of these marks are even close to 0 or 10 on the marker. It looks like there's another marker mounted on top but you simply can't see it or shine a light at it. | | | Re: 1985 Dodge B150 fails emissions twice! | Joined: Aug 2001 Posts: 12,107 Likes: 37 Maniac | Maniac Joined: Aug 2001 Posts: 12,107 Likes: 37 | Yes. Those four marks are for the magnetic pickup system Chrysler was using in the 70s and 80s. See thse tubes that are on the timing tabs? Those were for the magnetic pickups that dealerships used on their timing lights and diagnostic machines. Everyone else just uses a timing light.
The top timing tab was the one used on trucks and cars where you could see the tab from the top. THe ower tab is mainly a van thing due to the short nose of the van.
If it isn't immediatly obvious which timing mark on the damper is the one you use to find TDC on the #1 cylinder, then you are going to have to use a piston stop tool to find TDC manually. Part of the problem is the four timing marks, part of the problem is the fact that the timing marks are on the outer ring of the vibration damper that is bonded to the inner ring and the vulcanized rubber that holds the outer ring on can degrade over time and allow the out ring to slip. When the outer ring slips it no longer accurately indicates TDC. The only thing to do then is find TDC manually usuing a piston stop tool. It isn't hard, but you have ot know how to do it right.
(1) remove plug from cylinder 1 (1.5) remove the valve cover over cuylinder 1 and rotate the crank while watching the valves. Rotate the crank until you see the intake valve on piston 1 open and then close. This ensures you are on the compression stroke. (2) install the piston stop tool (3) rotate crank clockwise by hand until piston contacts the piston stop tool. (4) make a line on the damper at the TDC mark on the timing tab (5) rotate the crank counterclockwise until piston contacts piston stop tool (6) mark a line on the damper at the TDC mark on the timing tab. (7) TDC on the crank is halfway between the two marks you made on the damper. Don't be surprised if true TDC does not line up with the mark cast into the damper. Make a new mark at true TDC on your damper. (8) rotate the crank clockwise until the true TDC mark you made on the damper lines up with TDC on the timing tab. Congratulations. Your motor is now at true TDC on the compression stroke of the #1 piston. (9) disconnect vacuum advance hose and plug it (10 ) reinstall the plug in #1, along with the #1 plug wire (11) start engine and use the timing light to set your base timing a specified.
Done.
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