DangerXJ

Guessing they make a 4 sided Allen wrench for this???

brutalxj

Just use a ratchet with no socket.

freegdr

why are you wanting to remove it if you dont mind me asking?

DangerXJ

Tried the ratchet seemed like it didn't fit in hard to manuver with the ex manifold. I am trying to drain or flush any crap out of the bottom of my block. Machined head new gaskets all new cooling system. Want to make sure it's clean!!!!!!

Gee oh Dee

Its a 3/8 square. Maybe 1/2. Use an extension. It will fit.

DangerXJ

Thanks I'll give it another go!

Gee oh Dee

If you have a 3" extension or a U joint for the ratchet that might help too.

DangerXJ

With or without the extension its too big and it's not the ball stopping it

Gee oh Dee

What size ratchet are you using?

DangerXJ

3/8

Gee oh Dee

Maybe try a 1/4 drive socket. One of them will work.

DangerXJ

1/4 way too small I guess it's a 5 /16 drain plug. 3/8 is just a hair big off to find a 4 sided allen

freegdr

that plugs been in there eleven years gonna be a pain to get out ,then its a small hole aing gonna get much out puling all the freeze plugs and flushing will get better results but thats a pain also good luck

DangerXJ

I already have the entire cooling system off I was going to open drain plug and stick hose into the waterpump location

djb383

Reasonably sure it's 5/16".....a short piece of 5/16" bar stock (at most hardware stores) should work.