Which glow plugs?

[creekfreak]

autolite, bosch???? I replaced the relay this weekend....used the gpr109 rather then the 110 as it was significantly less expensive...zat ok??? Should i replace the wiring harness while im in there for good measure? Ive never done a GP change before, is there a technical write up here for that procedure?
Thanks gentlemen.

[Fordman247365]

That GPR is fine but it isnt going to last long. Motorcraft ZD-11 are the best glowplug, there is another good name but cant think of it off hand.
For the relay, this is the best....
586-902 Stancor General Purpose / Industrial Relays

[madpogue]

Motorcraft / Beru for the plugs (IIRC, they're the same). DO NOT use Autolites; they're known to swell in the head, making removal a... er... challenge.

[wlk]

beru is the other brand. IIRC beru makes the OEM motorcraft. Cheap ones are know to swell in the cylinder and break when removed. Stick with beru/motorcraft. Install is pretty straight forward. Pull your valve covers and there they are. You'll need a deep 10mm socket to get them out. 14ft-lbs torque on the glowplugs, 8ft-lbs torque on the valve cover bolts. I pull all the glowplugs and bump the engine over with them out a couple four times with a remote starter to clear any oil that may have gotten in the cylinders (put the valve covers on with a bolt or two to avoid spraying oil in the engine compartment). Truthfully I doubt much oil gets into the cylinder taking out a glowplug, but whatever. inspect the Under valve cover wiring harness (UVCH) while your in there, there are write ups on the continuity readings you should get testing the pins on the UVCH with glowplugs and injectors plugged in.

[erics diesel]

i know which gps to get but is there a difference in gaskets and uvchs? im planning on doing mine soon and dont want to get a cheap gasket that the pins are going to go out/ground out right away

[terryknight]

i you replace the uvch harnesses make sure to get ones with copper wiring and not aluminum. when i did mine i bought them at IH as they were significantly cheaper than Ford

[Hendricksbus]

ZD-11 here, tried auto lights and quickly went too ZD-11's... good luck..

[creekfreak]

And what about the valve cover gaskets? Reuse
Or replace?

[Fordman247365]

Reuse em if they look good, but if there is ANY sign of melting anywhere replace them

[terryknight]

elmo has it covered