Jdtractor121
New User
Have a 2020 gas engine. Started a
"knock" near the head, definitely not
a bottom end knock. Found 2 strikes on
number one piston but my tractor
mechanic does not believe it was a
valve strike. Valves show no signs of
hitting anything. I found a piece of
metal in number one lifter, and a
piece of metal in the oil pan, so
pulled the pistons wrist pins are
tight as new, rod bearings are in
great shape the main bearings have not
spun. There is nothing visible with
the tractor engine torn down in frame
that explains the knock or where the 2
smaller pieces of metal came from.
Tractor mechanic wants to just take
the motor out and go threw it from top
to bottom, deck the block etc. Cost
4,000 to 4,500. I can rebuild the
engine myself but do not have the set
up to,break the machine apart. So
what's every one's opinion in frame?
Or out? Only thing I've found pretty
worn in,this engine is the liners. I
do believe the bearings are orginal
but I can't say for certain anyone
know how to,tell if they are standard?
"knock" near the head, definitely not
a bottom end knock. Found 2 strikes on
number one piston but my tractor
mechanic does not believe it was a
valve strike. Valves show no signs of
hitting anything. I found a piece of
metal in number one lifter, and a
piece of metal in the oil pan, so
pulled the pistons wrist pins are
tight as new, rod bearings are in
great shape the main bearings have not
spun. There is nothing visible with
the tractor engine torn down in frame
that explains the knock or where the 2
smaller pieces of metal came from.
Tractor mechanic wants to just take
the motor out and go threw it from top
to bottom, deck the block etc. Cost
4,000 to 4,500. I can rebuild the
engine myself but do not have the set
up to,break the machine apart. So
what's every one's opinion in frame?
Or out? Only thing I've found pretty
worn in,this engine is the liners. I
do believe the bearings are orginal
but I can't say for certain anyone
know how to,tell if they are standard?