Engine Problems

[Steve48]

Hi, I have a standard 2004 Blaster. The oil pipe came off the carb and ran dry for a short time. I have inspected the top end and there was some scoring on the piston and the rings were stuck in places. The bottom end appears ok and runs freely without any play in the bearing. The engine runs ok but there is a ‘rattle’ noise coming from the engine at tick over & low revs. The oil light also keeps coming on and off at different times, I’m now using a pre-mix but would like to solve the problem. Any advise would be greatly appreciated, thanks

 

[bonzaiking]

have you replaced the piston?

 

[OConnor Racing]

Check the bore size and bore or hone the cylinder. Replace the piston and rings. The noise could be piston slap but is more likely combination of bearings as well. Bearings don't last long without oil. Even if the bearings survived the lack of oil, it won't be long until they fail. Doing it right the first time will save you time, money and headaches down the road.

 

[Steve48]

Check the bore size and bore or hone the cylinder. Replace the piston and rings. The noise could be piston slap but is more likely combination of bearings as well. Bearings don't last long without oil. Even if the bearings survived the lack of oil, it won't be long until they fail. Doing it right the first time will save you time, money and headaches down the road.

Great, thanks for the advise.

 

[Steve48]

have you replaced the piston?

No I haven't replaced anything. It cleaned up ok and the bearing apeared to be fine.