Anyone had problems with drain plug? I can only turn it about 360 degrees then it seizes up and no coolant comes out Is it just a 90 turn screw? I'm concerned about chewing up the plastic cross head so any ideas on the best tool to use in removing/loosening the drain screw to get coolant flow?

 

I don't ever use the pit **** to drain as they seem to always break off. I take off the lower radiator hose. It's a faster more complete drain.

 

Posting in X250 forum but your Signature lists:

2012 XJL Midnight Black
2010 XKR Silver
2004 XJR Jaguar Racing Green

Which model are you asking about?

Graham

 

The X250 uses the same radiator as X351 but there are many more X250's around so I was seeking help from the largest exposure.

 

For the benefit of future forum posters/searchers. The radiator has a cross head plastic screw that is multi turn i.e not a 90degree shut off.

My experience on a 4.5 year old car was that the screw backs out ~ 360 degrees then seizes. Given the plastic screw head is susceptible to being chewed up you can quickly become "screwed" excuse the pun. I made a small tool to match the profile (curved and thickness) to best fit the cross head slot and with plenty of wd40 backed the screw out in small increments about 45 degrees at a time cycling the screw in & out until I had coolant flow. Glad to say this was successful and the WD40 must have lubricated the thread enough to overcome the initial seizeure that threated to ruin the plastic screw head.