THE Government is seeking Legislative Council approval this month of $4.3 billion for construction and facilities at the Chek Lap Kok airport, a move which is likely to again provoke complaints from China. Beijing officials, particularly Lu Ping of the Hong Kong and Macau Affairs Office, have condemned any vote on money for airport projects, even the Government's own work, while substantive discussion about the financing of the airport and its rail link isstill under way. Legco will be asked to allot $3.9 billion for core government facilities at the new airport and $423 million for further work on the West Kowloon reclamation. The request indicates that the Government is determined to drive ahead with its projects in an attempt to complete the airport as soon as possible. The last time the Government asked for money, the much smaller sum of $1.67 billion for the Provisional Airport Authority, both it and legislators came under attack from Beijing. Chinese officials said the British side was taking unilateral action because there was still no accord on the overall financial package for the projects. Legislators ignored the warning then and allowed the airport to proceed at full speed without China's blessing. This funding proposal is also expected to get through the legislature. More requests for money are expected to be forwarded to the Legislative Council towards the end of the month. A Government spokesman said the $3.9 billion being sought now was for the further procurement of equipment and systems and the construction of government facilities, such as meteorological equipment and the cost of fitting-out. The $423 million for the West Kowloon reclamation covered the next phase of work to enable the expressway, Western Harbour Crossing and West Kowloon reclamation development areas to be completed before the end of 1996 as scheduled. The Finance Committee would be also asked to approve the creation of a ''pool'' of the Government airport core-programme project (ACP) contingencies. The Government said the pooling of project contingencies would enable it to make internal transfers of funds to meet urgent needs. The dispute over airport financing is still locked in the Airport Committee of the Sino-British Joint Liaison Group, which has not met since August last year. However, an expert group under the Airport Committee met yesterday morning to discuss technical details of the project. It is understood, however, that they could not reach any agreement.