It's possible it was an 87 6.9 engine swap too. My 87 F250 6.9 has the 7.3 style setup and bullet head glow plugs. I know it's stock because if you search for glow plugs for an 87 F250 6.9, you get bullet head ones. Searching for my 85 E350 gets spade ones. Ford switched to the newer system on the 87 6.9, probably since they had changed the assembly line for the upcoming 7.3, just a year early.
Glow plug relay question
- Thread starter Ghuds
- Start date
It's possible it was an 87 6.9 engine swap too. My 87 F250 6.9 has the 7.3 style setup and bullet head glow plugs. I know it's stock because if you search for glow plugs for an 87 F250 6.9, you get bullet head ones. Searching for my 85 E350 gets spade ones. Ford switched to the newer system on the 87 6.9, probably since they had changed the assembly line for the upcoming 7.3, just a year early.
rhkcommander
Full Access Member
thus why i put a switch on the starter relay !
Starting fluid has worked well for me, with a manual push button for the glow plugs set up so they couldn't fire. I only did it when absolutely necessary of course, a few times this past winter when it was being difficult in the mornings. I just took off the (NA) air lid and did 2-3 quick sprays down toward the intake, replaced the lid, and then cranked it over normally from the key.
Ok, I got the relay hooked up to a remote switch for the glow plugs. It works like it should. I’m getting 12v to the glow plugs when the switch is on, but I don’t think they are heating up. I pulled one out and they are Autolite plugs which I understand are crap. I assume they are all bad. They have the bullet connectors on them, so are they 7.3 plugs? The entire glow plug system seems to be from a 7.3. Can I use the correct Motorcraft plugs for the 7.3 or should I get 6.9 plugs? Are they the same? Thanks!
Yes, you can use the motorcraft ZD9 glow plugs with that setup.
