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View Full Version : Oil leak + backfire through carb



JJSmitches
02-19-2007, 01:11 PM
This isnt a real emergency, but wasnt sure where to post otherwise...

Yesterday we changed the oil in my Chevelle and tried to fire it up. We got a couple of backfires through the carb. The timing appeared to be way off so I set it back at the recommended 12 deg advance. Still got the backfires. Adjusted mixture screws out and still backfired through carb, and never started. I am thinking maybe the distributor is out 180??? Will I hurt anything if I change it and try to start the car again?

The last time we cranked it we heard a whooosh sound about 10 seconds after we let off the key, like presure releasing. My friend thought maybe it was just the shocks or something. I didnt think much of it at the time.

A few mins later he says wow, there is a huge leak, its oil all over the floor of the garage. I am thinking the filter wasnt on tight enough. It was too messy to tell for sure, but we saw oil dripping from the filter and nowhere else. I doubt there is much oil left in the car, but will check later today.

So, anyone have any other ideas on the backfires? Should I be more concerned about the oil leak if it is only coming from the fitler?

Vegas69
02-19-2007, 03:56 PM
Sounds like you probably didn't get the old gasket off the oil filter housing. Have you had the distributor out lately?

JJSmitches
02-19-2007, 04:00 PM
Yes on the distributor, sort of.

I had to losen it and pull it out enough to get the coil off the manifold and remount to the firewall. I didnt think it moved enough during this time to be 180 off, but now I am thinking this is what happened

I am about to head into the garage later this evening and check the oil filter and make sure the old gasket wasnt left behind.