AC Owners Club Forum

AC Owners Club Forum => Ace, Aceca & Greyhound Forum => Topic started by: James Eastwood on November 22, 2023, 18:09:53

Title: Bristol engine core plug hex size
Post by: James Eastwood on November 22, 2023, 18:09:53

On disconnecting my temp gauge capillary tube to the aluminium core plug, on my 2L Bristol engine, the thread boss has broken off. It has corroded internally.

My car is about ninety minutes away at a painter, would anyone know the socket size I need to unscrew the core plug please?

Are there any repair techniques or do I need a new core plug, and where might I find one?

Many thanks indeed, if someone can help.

Regards James Eastwood

Title: Re: Bristol engine core plug hex size
Post by: nicksonsticks on November 23, 2023, 23:02:05

Hi James,
Pretty sure IN Racing can supply the parts you need.
I can check for spanner size at the weekend if you're ok to wait till then.
Hope this is of help.
Nick

Title: Re: Bristol engine core plug hex size
Post by: AC Ace Bristol on November 24, 2023, 08:58:43

.
James
Re : Aluminium Core Plugs for Bristol Engine.

Tony Byford makes Aluminium Core Plugs and fits to his rebuilds,   He may well hold a few in stock.
Tony's Mobile number ;  07500 860031.

Keith

Title: Re: Bristol engine core plug hex size
Post by: James Eastwood on November 24, 2023, 15:13:03

Nick - if you can give me an accross flats measurement that would be great, I'll then try and work out what the type and size of socket is required !

Keith - nice to hear from you, many thanks for the recommendation.

Title: Re: Bristol engine core plug hex size
Post by: nicksonsticks on November 24, 2023, 19:55:32

Hi James
42.45mm across flats.
Hope this helps
Nick

Title: Re: Bristol engine core plug hex size
Post by: 10kph on November 28, 2023, 19:26:34

Hi james,
                The plugs are weak and none repairable. I have a new one as spare for years but it can be yours for £20.
       If you require it let me know and I will list on Ebay
   Regards Tony

Title: Re: Bristol engine core plug hex size
Post by: James Eastwood on December 06, 2023, 07:50:17

Tony, apologies for slow reply, that would be incredibly helpful if you could list your spare on eBay.

Thank you very much indeed.

James

Title: Re: Bristol engine core plug hex size
Post by: James Eastwood on December 13, 2023, 12:56:10

Nick,

Also thanks to you for taking the accross flats measurement, I have cross referenced this and it's 1 inch Whitworth, so I'll see if I can order a socket. Thanks again you have saved me a 2 & 1/2 hour round trip to the car.

James Eastwood

Title: Re: Bristol engine core plug hex size
Post by: 10kph on December 13, 2023, 20:51:14

Hi James,
                Sorry I have not replied but I was waiting to be notified by privete message.
       Send a mail to tonyjack@live.co.uk and we can sortout a transaction. No panic it is still here
     Tony

Title: Re: Bristol engine core plug hex size
Post by: James Eastwood on December 25, 2023, 21:54:21

Email sent to Tony, thanks again.

1" Whitworth socket found.

Then here's a pic of our car still sulking at the painters. We knew the car had many bumps in it's racing lifetime including retiring after a heavy crash in the '61 Goodwood TT, but once the paint came off we were faced with a bigger task than expected, so the car has taken a lot longer to get right.

Happy Christmas folks!