What is it with these F*KNG valve covers and fill tubes!!??

[randeez]

will the oil fill cap go directly into the valvecover without the tube?

if not, holley makes a slim oil fill cap - that does, i cant remember if it has 1 tab or two tabs tho. whatever my stock oil fill cap was i needed the other

 

[89Suburban]

will the oil fill cap go directly into the valvecover without the tube?

if not, holley makes a slim oil fill cap - that does, i cant remember if it has 1 tab or two tabs tho. whatever my stock oil fill cap was i needed the other

I am not sure @NoReverseYukon says it does, I have not tried it. I will have to remove the cover again to try it for myself. if it does and feels secure I will just use the cap and **** the filler neck. Or JB weld like others here mentioned.

 

[89Suburban]

I absolutely know how upsetting things like this can be!

So is this the part that you already have that only fits upside down?

https://www.gmpartsdirect.com/oem-parts/gm-filler-tube-12574386

No I tried a ****** Dorman part and then this GM one: 609729947

 

[randeez]

stock cap didnt go into the valve cover, holley did

but i cant recall which one had 1 tab or two lol i'll check when i get home


*** looking back thru thread on pt.net i needed a cap with two indents, meaning my stock one only had one indent

 

[wsteele]

No I tried a ****** Dorman part and then this GM one: 609729947

GMpartsstore.com lists a different part number than the one you got. They list 12574386. At $42 "on sale" before shipping, I think JB Weld is looking better and better, or as George B suggested, a visit to the local pick and pull yard.

 

[89Suburban]

stock cap didnt go into the valve cover, holley did

but i cant recall which one had 1 tab or two lol i'll check when i get home


*** looking back thru thread on pt.net i needed a cap with two indents, meaning my stock one only had one indent

View attachment 269439

View attachment 269438

Does your tube "tilt" up and out like I am or does it stay tight and flush to the cover?

 

[OR VietVet]

In post #6 the GM part #'s are there with pricing and availability from RA.

 

[89Suburban]

 

[wsteele]

In post #6 the GM part #'s are there with pricing and availability from RA.

Something is really goofy, as the picture for the GM part is the same slot and ramp orientation as the new one he has and should go on, neck facing down and a 180 degree twist to lock in in place. Strange.

 

[randeez]

Does your tube "tilt" up and out like I am or does it stay tight and flush to the cover?

never had any issues with it.
i dont use the tube anymore but im thinking mine had 2 tabs and the oil fill cap only had one tab, thus i couldnt put it directly into the valve cover.

 

[89Suburban]

never had any issues with it.
i dont use the tube anymore but im thinking mine had 2 tabs and the oil fill cap only had one tab, thus i couldnt put it directly into the valve cover.

So you just use the Holley cap? Do you have a part # for it?

 

[NoReverseYukon]

I am not sure @NoReverseYukon says it does, I have not tried it. I will have to remove the cover again to try it for myself. if it does and feels secure I will just use the cap and **** the filler neck. Or JB weld like others here mentioned.

I deleted my filler neck because it would twist out of it's mount when I was attempting to remove the cap. This was my solution. It is the stock cap and it locks in like it's supposed to.

 

[randeez]

looking at this pic:

you have a single tab, the oem oil fill cap should just go in


my valve cover has 2 tabs, so i needed the holley cap

 

[89Suburban]

I deleted my filler neck because it would twist out of it's mount when I was attempting to remove the cap. This was my solution. It is the stock cap and it locks in like it's supposed to.View attachment 269446 View attachment 269447

looking at this pic:

View attachment 269451


you have a single tab, the oem oil fill cap should just go in


my valve cover has 2 tabs, so i needed the holley cap

I am going to try this next. If it doesn’t work JB weld it will be. Thanks all. I will keep you updated. Weather here is ****** for the next week or two. Don’t know when I’ll be able to try it.

 

[wjburken]

I am going to try this next. If it doesn’t work JB weld it will be. Thanks all. I will keep you updated. Weather here is ****** for the next week or two. Don’t know when I’ll be able to try it.

If it makes you feel any better, I went out and was going to pull the full neck off my 2013 to see what it looked like and discovered that the oil fill cap was missing. Not sure what the hell happened there. Fortunately I had a spare in my tool box, but for the life of me, I have no idea where the other one went. I am usually pretty **** about buttoning stuff up and putting the cap back on after watching my brother-in-law sent the hood on his 1990 mustang GT because he left the fill cap on top of the engine and slammed the hood closed. BTW, I couldn’t get the neck to come off easily so I didn’t want to break anything with it being cold so I didn’t get any pictures to compare to yours.

 

[George B]

I can’t believe you can’t find the right part...

 

[wsteele]

I am going to try this next. If it doesn’t work JB weld it will be. Thanks all. I will keep you updated. Weather here is ****** for the next week or two. Don’t know when I’ll be able to try it.

Hang in there bud. Our daughter is in Boston, they are getting dumped on as well.

Here in Boise, weird winter. We hiked 7 miles today up on the trails, 48F!

 

[Rocket Man]

Weird. The one on my 08 Silverado 4.8 just locks into place. Maybe buy a valve cover for a different engine.

 

[Da90]

I’m pretty sure I remember seeing elsewhere that the factory cap fits the valve cover.


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[89Suburban]

BTW, I couldn’t get the neck to come off easily so I didn’t want to break anything with it being cold so I didn’t get any pictures to compare to yours.

There is a locking tang built into the filler neck base. I would not force it either and risk a piece of it falling into the head. Better to find the time to take the cover off and try to unlock the tab with a pick tool. Even then it can be tough. I have read some posts of some Houdini's able to pick it loose from above.