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Conquest or Century Piston Ring

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HenryC
Posts: 141
Joined: Mon Feb 15, 2016 8:31 pm
Location: Surrey / East Hampshire

Conquest or Century Piston Ring

Post by HenryC » Fri Oct 26, 2018 6:57 pm

Hello,

Does anyone has a new standard size piston ring I could have, buy or borrow.

I have stripped a seized conquest century engine which I hope to rebuild. I can't detect any significant wear in the bores but the old rings have a too large a gap. Before buying a complete new set of rings, I would like to check that the gap is not excessive, using a new ring, ie the bores are not too worn.

I would like to use the block as it is, rather than going for a rebore and new set of pistons but don't want to lash out on new rings if they're not going to work.

Can anyone help?
Cheers, Henry

EL24
Conquest (Drop Head) Coupe DJ252
MGB 8-)

Marcel Renshaw
Posts: 305
Joined: Fri Feb 12, 2016 8:44 pm
Location: Derbyshire

Re: Conquest or Century Piston Ring

Post by Marcel Renshaw » Fri Oct 26, 2018 7:31 pm

F W Thornton and son at Telford aren't bad on price for rings and will sell them individually.

HenryC
Posts: 141
Joined: Mon Feb 15, 2016 8:31 pm
Location: Surrey / East Hampshire

Re: Conquest or Century Piston Ring

Post by HenryC » Fri Oct 26, 2018 8:42 pm

Thanks Marcel,

I'll contact them to see what they come up with.
Cheers, Henry

EL24
Conquest (Drop Head) Coupe DJ252
MGB 8-)

John Chatfield
Posts: 28
Joined: Mon Feb 22, 2016 11:00 pm
Location: Shrewsbury England

Re: Conquest or Century Piston Ring

Post by John Chatfield » Fri Oct 26, 2018 11:20 pm

Ha Ha Henry, a big thanks to Marcel for recommending my employer, yes John Chat, from Thorntons (01952 252892) is a really nice bloke who would love to help,,,, joking apart I can help but if you can confirm your bore size, ring width and if possable radial depth (how deep your ring groove goes into the piston) I can supply a ring for you to try. my work e-mail is :- jchatfield@fwthornton.co.uk I look forward to helping you. egards John

HenryC
Posts: 141
Joined: Mon Feb 15, 2016 8:31 pm
Location: Surrey / East Hampshire

Re: Conquest or Century Piston Ring

Post by HenryC » Sun Oct 28, 2018 9:32 pm

Hi John,

Thanks for picking up this query. I did email FWThorntons on Friday with a query about availability of a ring. Most of the dimensions you ask for are in that email except the radial depth. I will try to measure the radial depth tomorrow.

The nominal bore size is 3.000 +/- 0.003 inches. The width of the 3 compression rings is 0.0625/0.0615 (two are tapered) and the oil ring 0.1875 inches.

Thanks for your offer of help.
Cheers, Henry

EL24
Conquest (Drop Head) Coupe DJ252
MGB 8-)

weddingcartim
Posts: 67
Joined: Mon Feb 15, 2016 7:38 pm

Re: Conquest or Century Piston Ring

Post by weddingcartim » Mon Oct 29, 2018 7:30 pm

i have all sorts of old rings

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