Big end and mains shells

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doog
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Posts: 3
Joined: Sun Nov 07, 2021 11:05 am
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Big end and mains shells

Post by doog »

All hail founts of knowledge.
We have an 803 engine in bits. Going to treat it to new pistons but the crank doesn't look too bad so we are hoping to put a set of shells on it without a re-grind. Can anyone enlighten us as to what we are looking for? Big end shells are stamped 2A232 and 2407. Mains 2A646 and 2744.
In eager anticipation of your superior knowledge. thanks. Regards Doog.
oliver90owner
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Re: Big end and mains shells

Post by oliver90owner »

You may be OK, but I would never have an engine in pieces and not check for wear. A regrind now, if necessary, would avoid another engine removal/dismantling/new bearings/gaskets, etc in the not too distant future.
jagnut66
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Joined: Fri Apr 11, 2008 7:28 pm
Location: Mansfield, Nottinghamshire.
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Re: Big end and mains shells

Post by jagnut66 »

Agreed. If you've already got it in bits, go the whole hog and get it balanced. As they say, do it once.....
Plus the fact that an 803cc engine needs all the help it can get! :wink:
Best wishes,
Mike.
1954 Series 2: 4 door: "Sally" -- Back on the ground with (slave) wheels and waiting to be resprayed......
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
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