Anyone ever hone cylinders DIY style?

[TerryBPP]

I am just about to take my bmw block to the machine shop for a hone and the DIYourselfer in me started reading about doing it at home.

I've read the flex hone (dingleberry) hone is better to use than the 3-stone job. Not sure which grit to use or what diameter. 92mm bore on my motor so I'm guessing a 3.75" hone.

Anyway, I'm sure a few of you badasses have done it. And I always love a reason to buy another tool!!!

[Rot 911]

Used a flex hone on my nikasil cylinders when I rebuilt my 3.2 in the 911!

[Jims5543]

I rebuilt 2 engines and honed myself. The 1st was a 71 Dodge Colt. I sold it shortly after the rebuild, I knew the person I sold it too and it was still running at 200K miles, the engine was rebuilt @ 115K miles.

The second was a 84 Honda Civic that busted it timing belt and ate itself. I sent the head out for new valves and rebuild and then rebuilt the bottom end. I honed the cylinders on that one myself too. I put 70K VERY HARD miles on the car before I sold it with 200K miles on the clock.

You probably know this already but, if I remember correctly do not get too aggresive with the tool. Just rough up the surface for the new rings to seat back in.

Good luck!

[VINMAN]

Yes, the flex hone is way better than the 3 stone. i tossed all mine in the trash! Qusetion though are the cylinders alusil or nickasil? If so, you cant hone them the traditional way with a flew hone.