Join Date: Dec 2001
Location: Belleville, Illinois
Thanked 22 Times in 17 Posts
Re: 258 leaking around distributor
There's a gasket under the distributor base.
To change it, remove the cap and make a chalk mark somewhere that will tell you which way the rotor is pointing. It doesn't hurt to tap the starter to get the rotor pointing at the side of the block. Also make a mark that will show which way the the distributor is oriented. I make a mark showing which way the vacuum advance diaphragm is pointed.
Then disconnect the low voltage wires, remove the hold-down bolt and clamp, and lift the distributor out. Watch how the rotor turns as you lift the distributor out.
Do not turn the engine by any means until the distributor is back in!
Clean the gasket surfaces and put the new gasket in place on the distrubutor. A thin film of grease will keep it in place. Then position the rotor where it was as it came out of the engine, and put the distributor back in. The rotor should turn and wind back up where it started.
If it goes all the way down but ends up pointing a different way, you need to pull it back up and start over until you get it right.
The distributor drives the oil pump. Sometimes the pump will not line up with the drive in the bottom of the distributor. In that case, the dist will not go quite all the way down. Pull it up and use a screwdriver in the hole to turn the pump slightly.
Once it's all the way down, and everything is pointing in the right direction, put the clamp back on. The engine should start right up, but it still should be timed with a light.