Please help!! no oil pressure after oil change!!

[Zwap]

I have no idea what happened, I drowe to the garage and changed oil and filter and when I then started the 383 -66 I've got no oil pressure!!! Let it idle for a minute or two but no pressure and I can hear that the lifters got no pressure.
This is the third time I changed oil and filter since last spring and never had any problem before.
Removed the new oil filter and it was completly dry, crank it over without the filter and no oil is coming from the pressure side.
I got no oil pressure meter, just the warning light but as I wrote, I can hear it got no pressure and the warning light is lightning.
Please help!!

I

 

[Rwc]

Is the oil showing on the dipstick?

 

[68Nwprt]

I would not re start the engine. I would pull the distributor and turn the pump with a drill until you get an idea whats going on. Also I would recommend getting an oil pressure gauge hooked up to help diagnose the problem.

 

[Big_John]

As was said. check to be sure there's oil.

An oil pump primer and a drill (turn it CCW) should get things going. If it doesn't pump then, the likely culprit is the oil pump drive shaft.

But.. what are the chances of it failing on start up? I've only seen one break and that was on a race track. Somethings not adding up here.

 

[tallhair]

I agree with john and rwc ... has it got any oil in it?

 

[tallhair]

I drowe to the garage and changed oil and filter and when I then started the 383

did you change it or did you have it changed?

Is the drain plug installed in the oil pan ?

 

[commando1]

Thry have JiffyLubes in Sweeden?

 

[stubs300]

Check the end of your Dist. shaft and see if the hex end is on there, if not get a new one. I had one twist off after doing a oil change, it had 114K on it when it broke. Sounds like the same thing here. Good Luck

 

[Fratzog]

Check the end of your Dist. shaft and see if the hex end is on there, if not get a new one. I had one twist off after doing a oil change, it had 114K on it when it broke. Sounds like the same thing here. Good Luck

A wealth of knowledge and experience on this board...

 

[Big_John]

I just realized what I wrote... If you pull the oil pump shaft to stick a oil pump primer in, you're gonna see if the pump shaft has the hex broken off.

 

[1978 NYB]

Unplug the coil wire until you get the problem solved so the engine doesn't start.

 

[commando1]

Wait!

He changes the oil and filter.
Stop.
He starts the engine.
Stop.
There is no oil pressure.
Stop.
The oil filter is dry.
Stop.

Why is everyone got him doing 1,000,000 things including checking the air pressure in the spare tire?

Cantflip, back me up on this.

 

[Big_John]

Wait!

He changes the oil and filter.
Stop.
He starts the engine.
Stop.
There is no oil pressure.
Stop.
The oil filter is dry.
Stop.

Why is everyone got him doing 1,000,000 things including checking the air pressure in the spare tire?

Cantflip, back me up on this.

Everybody is telling him to do the same things...

1. Check to make sure there's oil in the engine
2. Make sure the oil pump drive isn't broken.
3. Try spinning the oil pump with a drill and a pump primer.

What is happening is that it's kind of disorganized and not exactly in that order.

 

[Mopars & Missiles]

Check the end of your Dist. shaft and see if the hex end is on there, if not get a new one. I had one twist off after doing a oil change, it had 114K on it when it broke. Sounds like the same thing here. Good Luck

Agree with stubs, this can happen. If this turns out to be the problem, there are two different types of intermediate shafts available. The original type (which you DON'T want) and the newer improved type that has a tapered area where the round shaft merges into the hex shaped shaft. This type is considerably stronger than the original type intermediate shaft and has a hardened tip.

Like this one,

 

[commando1]

Can't speculate on anything until he checks the oil.
1. Is there oil?
a. Yes. Go to 3.
b. No. Go to 2.

 

[Big_John]

Can't speculate on anything until he checks the oil.
1. Is there oil?
a. Yes. Go to 3.
b. No. Go to 2.

Yea, but on the way to 3, you have 2 in your hand and can see if it's broken or not.

 

[commando1]

OK. Carry on, boys.

 

[Zwap]

OK, thanks for your advice!
I did the oil change my self and yes, there is oil in the engine and the drain plug is in place.
I tried to squirt oil in the pressure side of the pump with the filter off and when i crank the engine it squirt out so I think the pump i spinning, but when that oil is squirting out there is no more oil coming.
I can't see what an oil change could do to broke something.
More suggestions?

 

[saforwardlook]

If the intermediate oil pump drive shaft hex end is not broken, and the oil pump does function, it seems the pick up tube in the oil pan must have failed in some way - i.e. a crack in the tube, clogged with perhaps nylon teeth that have sheared off due to age/use if you have that type of timing chain in that car (can't explain why it would happen after an oil change though). One thing I always do is prime the oil filter with the new oil after changing the old oil and I always use a filter with an anti drainback valve to always keep oil primed when starting the engine, saving on wear over the long term, especially if your vehicles sits a long time between driving intervals.

 

[mmissile]

Old, broken valve seals can stop oil flow thru the screen. It'll bypass the screen and suck the old hard valve-seal pieces into the pump. It then snaps off the end, as stated above. I had a Hurst-300 that did that. I carried a spare shaft and the tools to do it on the side of the road. I did it 3-4 times, before spinning a bearing. That was back in the 70's, when I had no money....or brains.