235 replies to this topic

[Stevee]

Machine mart, about £20

good good

do they use flyh cutters to do over bores?

teacher said you can do them on mills

[1984mini25]

Nope its just a 3 legged hone tool with some stones on that you use in an battery drill on a slow speed (or you’ll find bits of it flying across your workspace) to just take the glaze off the bores not to re-bore them.

It’s also not a good idea to re-bore a block and then find pistons to fit, as a +20 (or whatever) piston might not be exact. So you could end up with a loser fit between the piston and bore leading to all sorts of problems.

[Stevee]

Nope its just a 3 legged hone tool with some stones on that you use in an battery drill on a slow speed (or you’ll find bits of it flying across your workspace) to just take the glaze off the bores not to re-bore them.

It’s also not a good idea to re-bore a block and then find pistons to fit, as a +20 (or whatever) piston might not be exact. So you could end up with a loser fit between the piston and bore leading to all sorts of problems.

might get one then


also just checked head over, im going to rebuild it, new guides and that

[twrminisport]

Nope its just a 3 legged hone tool with some stones on that you use in an battery drill on a slow speed (or you’ll find bits of it flying across your workspace) to just take the glaze off the bores not to re-bore them.

Exactly. Google it and buy one

If you are going for a rebore then buy the pistons first. All the pistons will be DIFFERENT SIZES. im talking in thou. Whenever we rebore an engine we buy the pistons and then send them off with the block to be rebored and the engineer who does them for us numberes the pistons to the different bores to take into account the different sizes of pistons.

Im talking a proper engineer here though who knows what hes doing.

[Stevee]

Nope its just a 3 legged hone tool with some stones on that you use in an battery drill on a slow speed (or you’ll find bits of it flying across your workspace) to just take the glaze off the bores not to re-bore them.

Exactly. Google it and buy one

If you are going for a rebore then buy the pistons first. All the pistons will be DIFFERENT SIZES. im talking in thou. Whenever we rebore an engine we buy the pistons and then send them off with the block to be rebored and the engineer who does them for us numberes the pistons to the different bores to take into account the different sizes of pistons.

Im talking a proper engineer here though who knows what hes doing.

Martin From MRA will do the boring i think

or i might not bother

how much increase will i get for 40+ bore?

[Stevee]

Can someone link me to a honing tool??

thank you

[1984mini25]

Can someone link me to a honing tool??

thank you

http://www.machinema...d-glaze-breaker

[GreaseMonkey]

11 pages? Pictures pictures!

[1984mini25]

[attachment=108747:needpics.gif]

[twrminisport]

Its a pretty good thread actually. Its only reached 11 pages because theres about 4 of us constantly wittering on here :/

[Stevee]

Its a pretty good thread actually. Its only reached 11 pages because theres about 4 of us constantly wittering on here :/

This is very ture haha

im picking some more parts up saturday and ill acctully do an update ;]

but theres a few threads rolling round like this

[DaveVader]

Yeah, I quite like this thread, good source of info and still makes me want to build a nice small bore.

[Stevee]

Yeah, I quite like this thread, good source of info and still makes me want to build a nice small bore.

do it do it do it

new style super small bores for the win

have speed and ecomany

[twrminisport]

Yeah man
Definatly small bore for the win

On a side note its much better to have a thread with lots of information as a reference to people than without which doesnt help anyone or give anyone else ideas.

[Stevee]

Yeah man
Definatly small bore for the win

On a side note its much better to have a thread with lots of information as a reference to people than without which doesnt help anyone or give anyone else ideas.

this thred has alot of info also a lot of crap

but hey ho

ill do some work on engine next week