submerged
Newbie
Finally got the motor out of the sled. WOW, that was fun.
Pulled the top end off of the motor(head) and found bad cylinders
No predetenation
They are streaked, but not gauged. you could see the Hone marks in some places. or quite a lot all the way around the cylinder here and there. on spot way like 1.5 inchs wide. there were not deep but little bumps like 500 grit sand paper. What the heck is that. you can run your finger around the cylinder and it will be smooth and then kind of ruff in the places that looked like light grit sand paper.
On the cylinder that had less compression(PTO) and the Dry plug was washed looking. really clean on the top of the piston and the valves. but still scared
The clyinder that still had compression (MAG) had the most scaring like the spot that was 1.5 inchs wide. but the top of the piston had some resson and it and was dark brown.
No pits on anything. what the heck would cause that kind of wear on the cylinder.
The last time the motor was gone through, was when boondocker steel sleeved the motor. Maybe they did not put new rings in the motor. they steel sleeved it because it streched (wrong blow off and built to much pressure) the case. or could it be when they did the motor, when the guy got it back he put it in and, did not break it in and just went for it?????????. since boondocker built the motor it has only on ride on it.
Anyway
Thanks
Pulled the top end off of the motor(head) and found bad cylinders
No predetenation
They are streaked, but not gauged. you could see the Hone marks in some places. or quite a lot all the way around the cylinder here and there. on spot way like 1.5 inchs wide. there were not deep but little bumps like 500 grit sand paper. What the heck is that. you can run your finger around the cylinder and it will be smooth and then kind of ruff in the places that looked like light grit sand paper.
On the cylinder that had less compression(PTO) and the Dry plug was washed looking. really clean on the top of the piston and the valves. but still scared
The clyinder that still had compression (MAG) had the most scaring like the spot that was 1.5 inchs wide. but the top of the piston had some resson and it and was dark brown.
No pits on anything. what the heck would cause that kind of wear on the cylinder.
The last time the motor was gone through, was when boondocker steel sleeved the motor. Maybe they did not put new rings in the motor. they steel sleeved it because it streched (wrong blow off and built to much pressure) the case. or could it be when they did the motor, when the guy got it back he put it in and, did not break it in and just went for it?????????. since boondocker built the motor it has only on ride on it.
Anyway
Thanks
gasgasboy
Newbie
THIS COULD BE WITH STEEL LINERS THAT IT WAS CUT TO BIG ON THE BORING BORE WITH OUT LEAVING ENOUGH LEFT FOR PROPER HONING.AND YOUR LOOKING AT THE BORING BAR BIT GROOVES.
# 2 YOU WOULD USE A DIFFERENT RING MATERIAL WITH STEEL SLEEVES THAN WITH A PLATED CYL..
GOOD PICTURES OF THE BORE WOULD HELP.
TAKE THE CYL. DOWN TO YOUR AOTOMOTIVE MACHINGE SHOP AND LET THEM HAVE ALOOK AT IT FOR A MORE ACCUTRE DIA.
GOOD LUCK
# 2 YOU WOULD USE A DIFFERENT RING MATERIAL WITH STEEL SLEEVES THAN WITH A PLATED CYL..
GOOD PICTURES OF THE BORE WOULD HELP.
TAKE THE CYL. DOWN TO YOUR AOTOMOTIVE MACHINGE SHOP AND LET THEM HAVE ALOOK AT IT FOR A MORE ACCUTRE DIA.
GOOD LUCK
submerged
Newbie
steel sleeves
That sounds good. I am not sure what they did . if they steel sleeved the cylinders or steel cased the case. What do they do when they do this to these motors for turbos
That sounds good. I am not sure what they did . if they steel sleeved the cylinders or steel cased the case. What do they do when they do this to these motors for turbos
phzmtnlite
Pro
lets us know whagt you learn, thanks
submerged
Newbie
cylinders
talked to the guy that re-sleeved the cylinders after the bores were stretched. He gave some pretty good Ideas of what could of caused it. When I send the bores and pistons to him he will give me a more precise idea what it was.
So far it is sounding like it was a assembly error
talked to the guy that re-sleeved the cylinders after the bores were stretched. He gave some pretty good Ideas of what could of caused it. When I send the bores and pistons to him he will give me a more precise idea what it was.
So far it is sounding like it was a assembly error
