Chances are, running it that long you have successfully bored the cylinder, not just honed it. I have a 3 finger hone that I have used for all the motors I have built.
I have never ran it for more than 10-15 seconds per cylinder. The job of the tool is to basically deglaze the cylinder walls go the new rings have a surface to bite into to seat.
I hope you had the hone and cylinder wall coated with oil or STP to lubricate everything. Chances are, judging by the scratches on the walls, you did it dry.
I am going to assume at this point now your best bet is to take it to a machine shop where they can properly measure the cylinder bore to determine if it now needs to be bored out further and larger pistoI'm ran.
Im all for doing things myself and encourage people to do the same most cases. You should have asked about the use of that tool prior to using it.
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
Well it may not have been that long but is was close to a minuite I did coat the walls and the tool with atf and did not do the cut dry. So if its ok I shouldnt have to worry about those extra marks as long as the glaze is gone?
Either way, it was too long. If you have access to a bore gauge make sure the diameter is within tollerence.
If not, it will need to be bored larger and need to use larger pistons.
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
Ok I think I know someone with a bore gauge I will check to see the difference. I did put the head of the piston in the cylinder to see the gap between and I can visibly see any difference in the gaps from the other three cylinders. I feel like an idiot lol.
I "can't" see any visible gap*
i see no cross hatching, just straight lines. this is why you have someone experienced with you when you build your engine if you aren't.
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yea agree , you need crosshatching , Plunge the hone in and out of the cylinder as it spins
I was plunging it in and out. I talked to some more people and I was doing this right. I also know I don't need to get over sized pistons after measurements. The machine shop I spoke with said its going to take a whole lot of honing before its too much. So apparently it is ok to run the hone longer than 15 seconds.
well the poeple you were talking to must not know what they are talkng about because u need cross hatching. the angles should be as close to 45 as you can get. move the hone quite quickly in the cylinder
should look like this
It doesn't take much to over hone a cylinder. I had a machine shop do it to one of my 4G63 engines for my Talon. There were .005" over and you could hear the pistons slap in the cylinder.
Using a 3 finger hone I've personally never been able to get proper cross hatching and have never had an issue. I find the ball honest to be best for proper cross hatching.
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
Ya I almost used that hone to do my ecotec as I worked there and got it cheap, my engine builder showed me how to use a ball hone and get a 45 degree cross hatch, glad I didn't use that, you might want to mike the cylinders for bore specs, you could have gone too far.....
