How do I plug the dip stick hole?

[coolblue65]

Like the subject says, I am using a late model 5.0 block and need to plug the dipstick hole in the side of the block and I am looking for ideas.

So what has everyone done? - I am sure this has been done many times before.

 

[ForceFed70]

Put a dipstick in?

 

[coolblue65]

Put a dipstick in?

HAHA, but I don't need two dipsticks.

I am using an early timing chain cover that has the dipstick hole in it- thats where the dipstick goes....

the late model 5.0 block has a hole in the driver side of the block about 2/3's of the way back on the side of the block. (because late models used a rear sump)

 

[PJx5x]

I tapped the whole and put a threaded plug in there. I want to say it was 1/8" NPT? I have the tap if you need it, as you live pretty close

 

[D.Hearne]

I used a snug fitting bolt and coated it with RTV sealer.

 

[geostang351]

I've heard that using a wooden dowl that is slightly tapered is the way to go. Tap it in with a hammer. The oil will swell the dowl making a nice seal.

 

[red65]

I tapped the whole and put a threaded plug in there. I want to say it was 1/8" NPT? I have the tap if you need it, as you live pretty close

1/8" NPT works great. Just tap it and thread in a 1/8" NPT brass plug.

 

[BullittStangV8]

+1 with the same question. I dont want to tap it, because I already have the engine assembled and I dont want metal shavings in my oil pan...

 

[coolblue65]

+1 with the same question. I dont want to tap it, because I already have the engine assembled and I dont want metal shavings in my oil pan...

Yeah, that is where I am at- I pretty much completely forgot about the hole, until I dropped the hole thing in.

I think I might try using a tapered wood dowel, and just seal the heck out of it with RTV.

EDIT: I just found out about these: http://www.mfgsupply.com/m/c/07-397.html?mv_pc=Froogle

They are like freeze plugs just really small, I just need to find one locally.

 

[SoCalCruising]

I measured the hole and had a brass dowel turned to to just under size. Dowel has grooves for two O-rings, properly sized for the hole. Used RTV-like material to complete the deal and provide a little adhesive action. Was all done with engine already in the car.

Edit: the plug has a lip at the outer end (like a bolt) and that lip rests on the block to keep the plug from falling into the crankcase.

 

[allcarfan]

JB WELD!

Or that super strong putty stuff. I used that on a gas tank one time, worked like a charm!

 

[BullittStangV8]

I've been looking for a plug thats the right size. Anyone know what the proper size is? I cant fit a ruler in there cus of the headers, and my calipers are not in my house.

 

[Stanger007]

Here's how I did it...

I found a tiny freeze plug and drilled my block exactly that size. I drilled about halfway down the oil hole (not all the way through!) so as to make sort of a ledge that the plug could bottom out on.

Then I wiggled the drill around in the hole to make the hole sort of hourglass shaped.

Next, I flipped the freezeplug around backwards and using a punch, I hammered it in until it bottomed out on the ledge. A few more taps on the plug and it widened out. I tried hitting it from the other side and it wouldn't budge - it was in there good. I put a dab of RTV on either side of it just to be sure.

No leaks! (Not from there at least )

Wes

Before

After​

 

[washMO66]

I measured the hole and had a brass dowel turned to to just under size. Dowel has grooves for two O-rings, properly sized for the hole. Used RTV-like material to complete the deal and provide a little adhesive action. Was all done with engine already in the car.

That is what I did as well, worked great.

TB

 

[coolblue65]

I just went to a local auto parts store/machine shop and I picked up a little freeze plug for $0.42. I will try to install it later on today.

 

[HistoricMustang]

I used a snug fitting bolt and coated it with RTV sealer.

Have done this one before with no problems.

HistoricMustang