Bore Honing

[jamieMember]

G,Day OBTers
Just gathered the bits to drop a new piston into the Husky,the last time was rings only and the bore looked sweet.

As i’m doing both piston and ring this time it may need honing.

Just wondering if you use the expandable hones or wire ones or its best to take it to a head specialist?

I was thinking the expandable hones may be hard to evenly use without damaging the surface.

Thanks in advance

[glennMember]

sounds like a pretty technical job there champ,, you wouldnt want to get this job wrong,,good luck with it..

[TheBossMember]

Nice work Boony in the tech help again :angry:

Twobanger I just spoke with TB he will answer you soon its his trade

[TheBossMember]

Thats better Boony does that mean your sorry, dont answer cya

[GregMember]

twobanger, try reading this mate, just be sure your cylinder is able to be honed, some are coated check with your dealer first

http://www.ehow.com/how_4827132_hone-cylinder-wall.html

use one of these hones mate

in trouble Boony? Did I miss something?

TB

[glennMember]

Trailboss wrote:

Quote:

twobanger, try reading this mate, just be sure your cylinder is able to be honed, some are coated check with your dealer first

http://www.ehow.com/how_4827132_hone-cylinder-wall.html

use one of these hones mate

in trouble Boony? Did I miss something?

TB

Um?? nope alls good,
do some bores have a special coating that restricts them from being honed??? I never knew that.

[GregMember]

Yeah Boony for example it could be a Nikasil cylinder lining, they are a coating that shouldn’t be honed, dont worry the Banana can be honed :laugh:

TB

I see you changed what you said earlier after admin

[glennMember]

Trailboss wrote:

Quote:

Yeah Boony for example it could be a Nikasil cylinder lining, they are a coating that shouldn’t be honed, dont worry the Banana can be honed :laugh:
Honed,,,be buggereed it will be getting bored when it needs work..and yeh once again i didnt read the thread title before commenting but I fixed it real quick ,,well I thought I did.
TB

I see you changed what you said earlier after admin

[jamieMember]

Thanks,
I think its coated, been a while since i had it apart.

[Bruce CurtisMember]

Late model husky? like past 12-15 years?
yep ok it has composite bore plating, a mixture of aluminium, silica, chromium and several others in an almalgam, you don’t really want to run a mechanical hone in it. The crosshatching is only put in these bores to bed the rings in ancreate a half decent seal once combustion pressure is behind them. What you do with coated bores is get a good new scrotchbrite and some kero and do it by hand, actually on the 250 I used a round plastic container slightly smaller than the bore and wrapped a scotchbrite around it and worked it one way down the bore and reversred its direction coming back up, continuing until I have a nice light cross-hatching showing, and Bobs yer auntie.

Wash it thoroughly in kero and then hot soapy water dry, blow with compressed air and Bobs back in his wifes undies.

BC

[GregMember]

Mr Blue, or twobanger if you want any of the correct industrial engine grade repair style scotchbrite give me an address and I will send you some, I have lots and lots of it left from when I was self employed

TB

[Bruce CurtisMember]

Gees TB how can i say no to an offer like that, I had several grades for furniture finishing, but I’ve used it all up now and my supplier is in grafton where I used to live I’ll send you a postpak if you want?

If I keep getting stuff off you I’ll get a complex….

Thanks Mate.

Bruce

[GregMember]

PM me the address and I will send it. Guess seeing how the master cylinder is a good thing we should work a price out one day :laugh: , dont ask what is worth because I dont know :laugh:

TB

[jamieMember]

Cheers TB
Ill have a fish around at work for some and if not ill get back to you.

ADB ran a story on doing a rebuild on a KTM for stroke and they are using some scotchbright to clean as well.

Mr Blue
Yeah late model husky, but i always call it old cause its getting on a bit.

[stephen nagleMember]

hey mate is it a crome bore or sleeved cast iron?

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