LONDON, April 1 (Reuters) - Britain's FTSE 100 index is seen opening up 17-22 points, or 0.3 percent higher on Tuesday, according to financial bookmakers. For more on the factors affecting European stocks, please click on
* The UK blue chip index closed down 17.21 points, or 0.3 percent, at 6,598.37 points on Monday, after a see-saw session which saw it trade between 6,583-6,658, leaving it down 2.2 percent for the year on the last day of the first quarter.
* WEIR GROUP : The engineer is said to be in talks to takeover its Finnish rival Metso Oyj in an 8.5 billion pounds ($14.17 billion) deal to expand its industrial pumps and valves market, the Times reported.
* BANKS: Hong Kong's de facto central bank said it is investigating a number of banks as part of the global probe into alleged manipulation of foreign exchange markets, as investigations into the $5.3 trillion-a-day-market escalate.
* UK March Markit/CIPS manufacturing PMI data, set for release at 0830 GMT, is set to show a small drop to 56.7 from 56.9, according to a Reuters poll.
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