Played around with the jeep Sunday. It's had a squeak/chirping sound coming from the engine since I bought it. (And was really starting to get annoying!)
I've had a new serpentine belt waiting for the first nice day with enough free time to drink some ice tea and take a look at what was causing the sound. I really thought I had a bad idler pulley bearing or a dry bushing in the alternator.
The idler pulley is easy to unbolt and eliminate, so I pulled it off and started it. Same chirp. I loosened the bolts on the power steering pump and ran that long adjustment out, took the belt off and fired it up. Still had the chirp with no accessories spinning.
Uhoh! Yep, it was the distributor singing. I just rolled my eyes and got busy. Popped the cap off with the wires and turned the engine with a large ratchet till I had the rotor pointing straight up. I pulled the one bolt, unplugged it and eased it up and out.
luckily this is a '95, so the timing is pinned, not adjustable. All I had to do was drop the base back in on the right cam tooth and I was home free.
These little 4 cylinder distributors are really simple to work on, aren't they? No mechanical or vacuum advances with the corresponding plate. I gently chucked the base shaft in my vice. I took a little screw driver and eased the plastic signal plate up and off, then supported the tail of the shaft and drove the split key out of the gear.
I pulled the shaft out and cleaned the base and shaft with some Gumout carb cleaner. I took some fine crocus cloth and cleaned the inner shaft until it spun freely in the aluminum housing.
I was surprised to see they used steel bushing in the housing against that steel shaft. Back in the day usually you'd find brass bushings. I suppose the steel adds a lot of rigidity to the housing.
I had some good moly H.P. grease in the gun so I pumped some into the base and put a thin layer over the center rod. I was careful to get enough, but not over grease. Took a ball peen and popped the split pin back in.
Slid the dist. back in, buttoned it all up and fired it up.....nice and quiet!
It was a short, interesting little job that had me goofing around the garage a while and actually accomplished something at the same time.
Hope you'alls weekend went well too!