Newbie w. New GN

[SuperSix]

This is why my block went from .030 to .040.

[bryes]

Ouch, that looks painful!

I'm assuming mine is standard bore, I don't think it's ever been apart before.

What makes you say my #2 looks bad?

It might be the way the picture was taken picture, because I think it looked about the same as #6 from what I remember. I could feel a small ridge at the top with some carbon buildup, but I think I could get the piston out without a ridge reamer.

[SuperSix]

I may be wrong - looks like some minor pitting. You will need to cut it, how much, I don't know.

[Steve Wood]

Looks like it is engine rebuild time....I suspect the crank is hammered if the piston looks like that...How badly, only a machine shop can say.

Other option is to look for an used engine.

[bryes]

Oh, I think that's just debris from the head gasket and dirt. It does look like pitting in the picture now that I look at it, but I think it will clean up!

You don't think there is any chance of honing it out with a new piston?

I thought I might give it a shot.

[bryes]

Wouldn't a crank being torn up be obvious when the rod was removed?

I once had an engine that was run dry on oil,  and it was obvious

[SuperSix]

Oh, I think that's just debris from the head gasket and dirt. It does look like pitting in the picture now that I look at it, but I think it will clean up!

You don't think there is any chance of honing it out with a new piston?

I thought I might give it a shot.

What is that?

[bryes]

Sorry that was just plain bad writing.

I should have said, hone out the cylinder and then install a new piston

[SuperSix]

Sorry that was just plain bad writing.

I should have said, hone out the cylinder and then install a new piston

You mean just one? I wouldn't, that engine needs machine work - or you need to buy a running used motor.

[bryes]

Well thanks for keeping me real then, I guess it really hasn't quite sunk in yet.  I was really hoping to get out of this without pulling the motor!

Thanks for the advice everyone and if anyone thinks of other ideas, knows a good machinist in Savannah or has a decent motor, let me know.

[Steve Wood]

It may be obvious, or it may not be.  If it is square, then it will be obvious.  If it is a couple of thousands out of round, it will not be.

Looks like factory pistons to me and they are not available...an d being that they were cast with iron inserts about the pins, there are none in the same weight range

[SuperSix]

Well thanks for keeping me real then, I guess it really hasn't quite sunk in yet.  I was really hoping to get out of this without pulling the motor!

Thanks for the advice everyone and if anyone thinks of other ideas, knows a good machinist in Savannah or has a decent motor, let me know.

Savannah GA? I LOVE it there!

It won't be too bad - hard part will be finding a good machinist. Not a whole lot left to getting that motor out of there.

[Steve Wood]

talk to Earl, he may know someone within a reasonable distance

[bryes]

Thanks everyone, I think the path forward is relatively clear now. Especially since I can't get a matching piston, the decision to rebuild the engine has really been made for me. I'll try to talk to earl about a machine shop near Savannah.


Tomorrow I'll shift my focus to getting the motor out. Does anyone have any pointers? Is it best to pull with or without the trans?

Savannah GA? I LOVE it there!

Savannah is a nice place to live! While I am from NE Ohio where I own a home, I can't seem to stay employed there. At least I have been fortunate enough to find work in Savannah and San Diego

[SuperSix]

Thanks everyone, I think the path forward is relatively clear now. Especially since I can't get a matching piston, the decision to rebuild the engine has really been made for me. I'll try to talk to earl about a machine shop near Savannah.


Tomorrow I'll shift my focus to getting the motor out. Does anyone have any pointers? Is it best to pull with or without the trans?

Savannah GA? I LOVE it there!

Savannah is a nice place to live! While I am from NE Ohio where I own a home, I can't seem to stay employed there. At least I have been fortunate enough to find work in Savannah and San Diego

Some pull with the trans, I don't. I don't have that much experience anyway. :p

One pointer. If you are using an engine lift that has too short of a boom - jack it up, take off driver's side front wheel, put on jackstand, frame at normal ride height Go in from the side with the lift. Some take the time to take the front bumper off instead.