3.3 eng

[nikko508]

I need help with my 3.3 trx . Every time I run it I find nitro fuel leaking from behind the flywheel area, is this normal, is it affecting my eng's performance, the eng runs fine very strong. Can anyone tell me I need to address this and if so how. Thanks.

 

[Snook Man]

Little leak is ok/common, big leak no good.

A good sign the bearing is leaking to the point it needs changed is a line of fuel will be slung on the chassis and inside of the body after a tank of fuel.

If it running well,it probably isn’t an issue.

 

[nikko508]

Well that's what I got a line of fuel on the chassis after I run it. How will I know when I should replace it

 

[Ballen]

how old is it as these enginges run and wear sometimes you don't notice the lose of power .if it has had over a gallon through it and is leaking like that ,personaly i would change it.

 

[nikko508]

I don't know how old it is I'm sure it has a gallon at least but it runs strong I can't believe after a gallon why are worn out already

 

[2revo1maxx]

How long did it take for the line to appear?

 

[Ballen]

mine had a lot of fuel through it but it never leaked ,if it did it was very little

 

[nikko508]

The line appears almost right away after I start it. Does it have a seal behind the flywheel or just a bearing, does this affect the performance of the eng or is it just a leak, I tried to move the shaft and see if it had any play in it and it doesn't at all.

 

[2revo1maxx]

It might be a tad rich, but bearings do go bad once in a while.