The Talyllyn's own engineering department is fully committed to a number of on-going projects.
Assuming that no significant extra damage is found, the Boston Lodge team will then carry out the repairs with the full co-operation of the Talyllyn's engineering department, the aim being to have the locomotive back in service for its 150th Anniversary in September.
The work will be paid from the Talyllyn Railway's reserve funds although contributions and pledges towards the repair costs are already being received.
Chris Price, the Talyllyn's General Manager said: "We are most grateful to the team at Boston Lodge for making room in their schedule to carry out these emergency repairs to No.1. It is a symbol of the strength of co-operation that exists in the heritage railway community. If all goes according to plan, No.1 will be back to celebrate its 150th Anniversary in September - another milestone in its remarkable career."