What size honing tool do I need? and what grit?
Theres a slight imperfection on one of the bores (looks like corrosion from water laying in the bore)
I'm hoping a honing tool will remove it.
Thoughts on this?
Honing tool for an m20b25
Moderator: martauto
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HairyScreech
- Engaged to the E30 Zone

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Your best bet is to take it to a machine shop, place i use will do all the bores with a dangleberry hone (bottle brush hone, glaze braker etc) for ~£30 or a full job for ~£45, Honing is something that is a lot more dependent on the user than the tool and is something even i wont attempt to do at home.
If your in essex Si13's old man runs a machine shop not too far away (somewhere around guilford iirc) might be worth a shot.
If your in essex Si13's old man runs a machine shop not too far away (somewhere around guilford iirc) might be worth a shot.
2.8 development thread http://www.e30zone.net/modules.php?name ... c&t=170822
m3.3.1 m20 thread - now running, chip needed - any volunteers?
http://www.e30zone.net/modules.php?name ... =viewtopic&
m3.3.1 m20 thread - now running, chip needed - any volunteers?
http://www.e30zone.net/modules.php?name ... =viewtopic&
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Idol
- E30 Zone Regular

- Posts: 331
- Joined: Mon Jul 31, 2006 11:00 pm
- Location: Essex
Thanks, but I'm gonna give it a go, sounds stupid but I've watched videos on YouTube, I'm only de glazing to remove the slight raised patch from the corrosion, a quick blast up and down should sort it.
