i kept noticing a slight amount of coolant gone from the radiator after a couple of days of sitting, well since im off for the 4th i thought i would just get outside and enjoy the day tinkering with the car. well, i found out where the water was going....(and i also think this is the main part of my overheating problem) there's a hole on the driver's side of the block, near the back that was leaking. i took my header off of that side and put a small screwdriver in it and all kinds of 'gunk' came out. i cleaned the hole out ad everything and i went to put a 1/2" freeze plug in it only to notice that it didnt fit right. so i thought it might have been a threaded hole so i tried a threaded plug... no luck. it doesnt look like there are any threads in the hole. so here's my question, does anyone on here know if this is a threaded or non-threaded hole. and maybe what size plug i need to get for it...? any help on this matter would be greatly appreciated
not threaded. did u get out all of the old freeze plug? hole must be clean. go get a rubber expansion type plug u put it in the hole and tighten the nut to expand the rubber plug. i forget if u need 1 1/2 or 1 5/8 inch size. these are much easier than trying to drive in a freeze plug in a cramped space. ive had 1 in my motor for 3 yrs now
That hole to the right of the brass freeze plug looks like a block drain. I think it is supposed to be 1/4" pipe thread.
i've never set the date one the camera .... and yes, im referring to the small hole in the pictures BESIDE of the brass freeze plug.
That hole is threaded in my block and has a pipe plug in it. Not sure why yours doesn't look that way? The rubber expansion plug may not be a bad idea if you can find one the correct size. Good luck!
sorry. thought u meant the freeze plug hole. drain hole is usually 1/4 npt. try a cleanout tap and a new plug.