Radiator Cap - help needed

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Amended 19/09/18

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Ajax123
Posts: 59
Joined: Mon Dec 11, 2017 8:38 pm
Location: Lincolnshire

Radiator Cap - help needed

Post by Ajax123 » Wed Jun 06, 2018 3:34 pm

I need to put some water into my tractor radiator but can't seem to get the lid off. It seems to be pretty solid but I cant work out if its a screw thread like the fuel caps or if its a push and turn bayonet type fitting like my car. The book does not say and I don't want to force it and break it. Its a David Brown 25 with the radiator cap at the front top of the bonnet.

Coggy
Posts: 9
Joined: Sat Jun 02, 2018 9:43 pm
Location: Lincolnshire

Re: Radiator Cap - help needed

Post by Coggy » Wed Jun 06, 2018 3:48 pm

I'm pretty sure the 25 is the same as the cropmaster, brass 3" diameter in which case it screws off, anti-clockwise. I had same problem with one of the fuel caps and I used a strap type oil filter remover and a good soaking with WD40. When I reinstalled it, after a good clean, I applied a smear of vasaline to the threads.
Coggy

Ajax123
Posts: 59
Joined: Mon Dec 11, 2017 8:38 pm
Location: Lincolnshire

Re: Radiator Cap - help needed

Post by Ajax123 » Wed Jun 06, 2018 7:29 pm

I was thinking an oil filter strap as well but didn't want to do that and find its a bayonet.

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db2d
Posts: 1885
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: Radiator Cap - help needed

Post by db2d » Wed Jun 06, 2018 7:45 pm

The cap is screwed on ( Righthand Thread )

Ajax123
Posts: 59
Joined: Mon Dec 11, 2017 8:38 pm
Location: Lincolnshire

Re: Radiator Cap - help needed

Post by Ajax123 » Wed Jun 06, 2018 10:09 pm

Thanks. filter wrench it is then... and a bit of wd40 to boot...

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db2d
Posts: 1885
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: Radiator Cap - help needed

Post by db2d » Wed Jun 06, 2018 10:33 pm

Be certain that a small grub screw has not been fitted to prevent the cap unscrewing.

Ajax123
Posts: 59
Joined: Mon Dec 11, 2017 8:38 pm
Location: Lincolnshire

Re: Radiator Cap - help needed

Post by Ajax123 » Thu Jun 07, 2018 9:44 am

ill have a look. Thanks once again :D

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