The key was being difficult going into the ignition so I sprayed a little wd40 into it yesterday. The key went in a lot easier today but now it won't turn. Ideas would be appreciated. Thanks.

Is the steering wheel locked?

LOL! Not to make light. But sometimes a gentle twist on the wheel to relieve the pressure on that there cog... We can only hope it was that simple.

Nope, that's not it but thanks

@Thunderchief

What year is the 914? Sounds like you need a new tumbler set.

I had this exact problem...not a fun fix for me but cheap. The internals were really gunked up and the cylinder was scored. Works fine now.

Heres the Link

It's a '74. I have a feeling it might be gunked up. I had to clean out and the door locks as well. How hard is it to get the assembly off?

I had similar problem in my 1974 that the key would sometimes snag and I was unable to turn the key at all. Your assembly will look like this (not the one with the red tape. Don't try to remove that pin underneath that red tape, don't ask you see the pic with the red tape. in the upper right of the pic, you will depress the hole with a pin punch 1. the key should be in the tumbler assembly
2. depress with a pin punch into that hole
3. while the punch is applying pressure into the hole beside 150A, this releases the tumbler assembly, then you pull out the key and tumbler assembly as a unit.
4. taking the actual tumbler with the key wafers is tedious and I had to build a wooden jig to support the assembly while gingerly tapping the roll pin to then get the thing apart.
you use a punch to drive out the roll pin, where I wrote the word "FAT" on the keyway assembly. once you get the tumbler out, you clean the wafers individually and the "tumbler carrier" as you see in the last two pics

I thought my key assembly was toast before commencing this project (took about 2 hours), but purely cleaning out brass debris from 45 years of use, made the key work perfectly butter smooth. I believe the "Cabinetmaker" member on this forum repairs these things for a fee. He did give me some advice which prodded me to disassemble the thing. I've searched this board and never found anything on how to disassemble the tumbler assembly.

@Thunderchief

It's a '74. I have a feeling it might be gunked up. I had to clean out and the door locks as well. How hard is it to get the assembly off?
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Spray in some carb or brake cleaner and you may get lucky
If you could get it to the unlocked position not that hard. But with it locked you may have to pull the whole steering upper assembly to get to the back side to depress the tab that locks into the column.

Maybe you can pull the tumbler assembly if you can get asccess to the hole that has the spring that needs to be depressed to pull the tumbler assembly.

By any chance is your door key different from your ignition key? Mine is, yet my door key will fit and sometimes turn the ignition; sometimes gets stuck. If you have multiple keys, make sure the correct key is in the ignition.

Ansbacher