1983 5.0 carb ECM 1225450

**Bigdav160** · 10-30-2015

Five liter Olds or five liter Chevrolet?

Back in the day, we did a lot of timing chains in those Olds 307's. It was mandatory to pull the oil pans because of all the plastic debris from the gear.

**1project2many** · 10-30-2015

Ugh... thanks for the reminder.

Next time someone begins to go off about the "good old days" just go ahead and slap 'em for me.

**Playtoy_18** · 10-31-2015

Should be an olds,somebody already mentioned that here but I thought it was the early stuff. Not messed with alot of v8 olds stuff,just enough to know BOP stuff don't like to fit up with chevy stuff.
Didn't get a chance to mess with it today,but had the parts kid pull a few plugs so I can check compression.
Gonna try and go in tomorrow to pull a dash so will check the gear thing out then,thanks.

**Fast355** · 10-31-2015

Originally Posted by Bigdav160

Five liter Olds or five liter Chevrolet?

Back in the day, we did a lot of timing chains in those Olds 307's. It was mandatory to pull the oil pans because of all the plastic debris from the gear.

Same thing happened with the 305s too! The upper timing gear was nylon toothed. Somewhere around 2000 the timing gear went in the 1983 G20 Van. In about 04 it spun 2 rod bearings. Turns out the shop that changed the timing chain left all those gear teeth in the pan to find their way into the oil pump pickup. Oil pressure gauge showed pressure despite the fact the rod bearings were starving. Took me a good while to figure out what all the little plastic triangles were.