4040 snowblowing

[tracktor312]

I finally got to try my 4040 blower today it definately needs some tinkering it dont have the power I thought it would. bogs down easily. after running about 1/2 hour it bogged more pulled choke a little it reved back up push in and ok for a minute or two then bogged again.It seems like I may need to adjust the govenor for initial bog but any thoughts on the bogging after getting hot doesnt seem like it was overheated. I think this tractor should have a ton of power although I am on a pretty steep hill any suggestions welcome THANKS LARRY

[KSever]

Sounds to me like you may be starting to freeze up the carburetor from the blow back snow off the snowblower. Though mine was a smaller tractor with a 10HP Briggs and Stratton I had the same symptoms til finally it would quit running and not start again until it warmed up. I had made a carburetor cover to get heat from the muffler and had no more problems

[JimS]

Could be the fuel pump. Do you have original mechanical or electric pump?

[D-17_Dave]

Your starving for fuel.

[MPH]

I'd start with changing the fuel filter, mine did that when I first got it going, with a new filter on it, but it was too restrictive of a filter, put a regular clear plastic auto type filter on been fine ever since.

[PeppyDan]

First thing to check is if the carburetor is just simply set too lean. Have you had that big of a load on the tractor before. It is sometimes amazing how much more fuel is needed under a load. It free to check this and the most simple to fix. Dan

[tracktor312]

I got to check it out today for a few minutes and found that the right side head is getting very hot the left side feels normal I will have to spend some more time to see whats going on.

[UCD]

A lean condition on that cylinder can cause it to heat more than the other one. this could be caused by a bad gasket on the intake manifold runner to that cylinder or a bad head gasket might also cause it. ( it'll draw much more air than fuel ), which will cause the combustion chamber to overheat and the excessive heat will likely damage the piston and rings and possibly warp the cylinder head and/or exhaust valve or even crack the cast iron engine block. A lean fuel mixture can also melt away part of the aluminum in the combustion chamber of an aluminum block engine.