Page 1 of 1
Thread Size?
Posted: Sun Nov 02, 2014 8:58 am
by Boomlander
Hi All,
Can anyone tell me the thread sizes for the radiator drain tap and the blanking plug on the other side ?
Many thanks.[frame]
[/frame]
Re: Thread Size?
Posted: Sun Nov 02, 2014 9:20 am
by bmcecosse
I've no idea...(although I guess BSP) but my advice is to leave them firmly well alone - if you haven't disturbed them already...
Re: Thread Size?
Posted: Sun Nov 02, 2014 9:46 am
by Boomlander
I have removed and replaced both with no problem but was thinking of fitting a thermostatic fan switch in the blanking plug side instead of using the large capillary type contraption supplied with the fan.
Re: Thread Size?
Posted: Sun Nov 02, 2014 1:04 pm
by les
I believe the drain cock a doodle diddley is 1/8th gas. take it to a plumbers merchant and compare it with their 1/8th gas blanking plugs.
someone has kindly added doodle etc to my post, for some reason.
Re: Thread Size?
Posted: Sun Nov 02, 2014 1:36 pm
by bmcecosse
Because you used a naughty word - c0ck -
Fan switch needs to be at the top of the rad - or in the top hose to be effective.
Re: Thread Size?
Posted: Sun Nov 02, 2014 1:46 pm
by Boomlander
bmcecosse wrote:Because you used a naughty word - c0ck -
Fan switch needs to be at the top of the rad - or in the top hose to be effective.
Really?, My Skoda has a fan switch and it is located right at the bottom of the rad.
Re: Thread Size?
Posted: Sun Nov 02, 2014 1:54 pm
by bmcecosse
Your engine will be boiling at the top before the lower hose gets 'hot' .
Re: Thread Size?
Posted: Sun Nov 02, 2014 2:35 pm
by Boomlander
Yes I see what you mean Roy, maybe I had better stick to the probe type thermostat which pokes under the top hose.
Re: Thread Size?
Posted: Mon Nov 03, 2014 5:01 pm
by katy
I measured the blanking plug on a spare radiator. To me it seems to be an odd-ball, .650" OD, 20TPI.
Re: Thread Size?
Posted: Mon Nov 03, 2014 7:02 pm
by Declan_Burns
I measured it up and the one I have is a 1/8" x 28 BSPT thread.
Regards
Declan