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30 Apr 2016, 18:35 (Ref:3637379)
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14th
1% Club
Join Date: Jul 2001
Posts: 42,465
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Omega Piston Rings
I'm rebuilding a B-series engine (1950cc) I needed a new set of Omega Piston Rings (for 83.5mm Omega pistons, #3649). I ordered these from http://www.shengineering.co.uk. However it turns out the oil control rings are too big - I understand that they changed from 3mm to 4mm at some point and mine need the older 3mm ring. All the other rings in the set I bought are OK.
Contacting Omega hasn't helped. Does anyone have any idea if there may be any places that stock the older rings? |
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__________________
Seriously not taking motorsport too seriously. 
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30 Apr 2016, 18:50 (Ref:3637385)
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Veteran
Join Date: Apr 2005
Posts: 5,651
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Quote:
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__________________
Incognito: An Italian phrase meaning Nice Gearchange!
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30 Apr 2016, 19:14 (Ref:3637394)
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14th
1% Club
Join Date: Jul 2001
Posts: 42,465
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Real engineering - I like that
 not least because they will be suitable going forward if (when) I need to do it again. I was going to have new pistons, but they cleaned up very well and I've had them coated. Bought new pins and rings, I thought jobs a good'n. I'm hoping for an easy solution.  not least as I'd like it completed!
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__________________
Seriously not taking motorsport too seriously.
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1 May 2016, 08:41 (Ref:3637467)
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#4 | |
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Racer
Join Date: Jan 2008
Posts: 137
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83.5 mm is a common Ford crossflow , Bda / lotus twincam size . It may be worth a look on a Ford/ Lotus website to compare sizes . Burtons, QED, etc. Altenative may be looking for a ring manufacturer listing ",Deves" and "Hastings" are ring manufacturers, also seem to remember possibly a company in Bradford, can't remember name though (Bradford piston rings?)!
Good Luck Last edited by oneofapair; 1 May 2016 at 08:46. Reason: additional info |
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1 May 2016, 14:22 (Ref:3637543)
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14th
1% Club
Join Date: Jul 2001
Posts: 42,465
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Thanks, I'll give them all a call next week.
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__________________
Seriously not taking motorsport too seriously.
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2 May 2016, 20:15 (Ref:3637938)
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#6 | ||
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Rookie
Join Date: Aug 2007
Posts: 49
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What did SH Engineering say? Have found Dave pretty helpful.
Have a look for peugeot 205/309 1.9 GTI rings, they were 83mm so 0.5mm oversize rings would work if they are 3mm, which I think they are. FW Thorntons should do them. |
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__________________
John Cleland 1992 BTCC Champion.... Fact!!
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