I am having a big problem with my first engine build 2 cylinder engine

[Paul Cleasby]

My first engine build and it isn’t going the best. The engine makes a high pitch sound when I turn on the starter motor. Any suggestions as to why? My only idea is when I was putting it together the crankshaft was really tight to fit and it was 0.5 me off the side of the engine. Any help would be much appreciated.

 

[tntpoof]

Id check front crank bearing.a vid with sound might help

 

[Chubaka]

Could the whine be a high torque starter motor?

 

[Paul Cleasby]

Id check front crank bearing.a vid with sound might help

This is a link to a Youtube video of what it sounds like hope it helps

Id check front crank bearing.a vid with sound might help

Could the whine be a high torque starter motor?

Not sure but it was the motor that was recommended by the seller and i have seen people use the same on You tube videos but i will look further into it. i appreciate the comment,

 

[tntpoof]

sounds like starter motor..is there a way to break in bearing with drill or some other way?

 

[Paul Cleasby]

sounds like starter motor..is there a way to break in bearing with drill or some other way?

Sorry what do you mean ‘Break in bearing’ could you explain

 

[tntpoof]

crank the motor over without using starter.

 

[tudordewolf]

This is a link to a Youtube video of what it sounds like hope it helps

Not sure but it was the motor that was recommended by the seller and i have seen people use the same on You tube videos but i will look further into it. i appreciate the comment,

That sounds like the starter motor shaft is slipping inside the pulley, maybe tighten / loctite the set screw holding that pulley to the shaft.