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cyl block drain tap thread size
Posted: Fri May 20, 2016 12:32 am
by zabond
Hi does anyone know the size of the drain tap on the 948 block ? as I need to plug up the hole
ty Russ
Re: cyl block drain tap thread size
Posted: Fri May 20, 2016 5:27 am
by oliver90owner
I don't know, but ESM will, I am sure. They have a part number RAD102 (and a drain tap on the following page) for the radiator. I don't expect the block threads will be any different, but they should know.
RAB
Re: cyl block drain tap thread size
Posted: Fri May 20, 2016 8:02 am
by les
The block thread will be a course thread, sorry don't know the size, the rad drain thread is a fine thread and much smaller.
Re: cyl block drain tap thread size
Posted: Fri May 20, 2016 9:09 am
by philthehill
The thread is 1/4" x 19 TPI BSP and to confirm I have just tried a 1/4" x 19 TPI BSP tap down the drain tap hole in the block hole and it fits like a glove.
Re: cyl block drain tap thread size
Posted: Fri May 20, 2016 10:47 am
by bmcecosse
Just fit a drain tap - it's handy for checking if the block is filling up with sludge.
Re: cyl block drain tap thread size
Posted: Fri May 20, 2016 10:56 pm
by zabond
ty phil & others for your replies, off to get a 1/4" bsp plug
Russ
Re: cyl block drain tap thread size
Posted: Sat May 21, 2016 6:21 pm
by IslipMinor
Russ,
Make sure that you get a taper thread plug 1/4" BSPT. Just to make sure use either a smear of gasket sealant or PTFE tape on the plug threads.