hi! All i have finished my resto on my scott bonnar, 45 grooming mower. with a rebuilt 3hp briggs new rings valves refaced the ring gap and valve gaps were way out had a strange thing happen when fitting the engine on in the middle bolting it down i noticed a crack a few mil from the edge of the rear chassis rail running the length of the bolt mounting holes for the engine i couldnt believe my eyes it seems that the petrol tank bracket that is secured with a bolt at the base of the engine was a bit proud of the engine base so when i was tightening the bolts the tank bracket was pressing down onto the rear chassis rail causing it to crack along the bolt holes this came at a time when i was putting it back together yesterday not to be beaten engine removed rest of mower protected from sparks i got the 4 inch grinder and v groved the crack stick welded it. cleaned the rail up then i noticed the rail had bowed from the heat I thought fs@#!$so i heated the area a little and levered it up next time supportTHE CHASSIS RAIL before any heat applied couldnt seem to ajust the tank bracket so i filed it flush with the engine base anyway a few pics attached below cheers steve,,,