CYLINDER REBORING/ COATING

[brooksy]

HEY ALL, ANYONE KNOW A DECENT PLACE TO GET CYLINDERS BORED AND RECOATED IN OZ?

[abusa]

Not in Oz Brooksy, a company in Melbourne does it but there has been mixed results.

[TheShredder]

Most in the states use

Millennium Technologies


http://www.mt-llc.com/

[Legend]

Brooksy, your not doing what I think your doing, are you?

Leonard.

[brooksy]

Brooksy, your not doing what I think your doing, are you?

Leonard.

yeah guilty, i gave slowdownjack my good barrel because his coating on his was damaged in the meltdown. i had plans for a 1393 big bore so i was gonna rebore the block anyway so swapping him wasnt an issue, then i spoke to you and you know the rest, too late......

[Banter]

Most in the states use

Millennium Technologies


http://www.mt-llc.com/

Apologies if this is a dumb question but why do you need to replace the coating, why canâ€t you just hone the bore out and replace with over sized rings. Is it that the metal under the coating is to weak or of a composition that requires the additional friction decrease for heat dispersion? I have read all the benefits in the ads and manual but whatâ€s the cost to benefit ratio and can you get away without it.

[Maj]

Apologies if this is a dumb question but why do you need to replace the coating, why canâ€t you just hone the bore out and replace with over sized rings. Is it that the metal under the coating is to weak or of a composition that requires the additional friction decrease for heat dispersion? I have read all the benefits in the ads and manual but whatâ€s the cost to benefit ratio and can you get away without it.

The bores are lined with a ceramic type of compound over the aluminium cylinder,the lining is only about .002"-.005" thick and the aluminium underneath is not durable enough for long term use on its own
i have heard of some just using the aluminium, but its only in race use and the cyls are a disposable item with a set life in this case.

[Banter]

Apologies if this is a dumb question but why do you need to replace the coating, why canâ€t you just hone the bore out and replace with over sized rings. Is it that the metal under the coating is to weak or of a composition that requires the additional friction decrease for heat dispersion? I have read all the benefits in the ads and manual but whatâ€s the cost to benefit ratio and can you get away without it.

The bores are lined with a ceramic type of compound over the aluminium cylinder,the lining is only about .002"-.005" thick and the aluminium underneath is not durable enough for long term use on its own
i have heard of some just using the aluminium, but its only in race use and the cyls are a disposable item with a set life in this case.

Hi Maj, thanks for replying, I went to the site http://www.mt-llc.com/ who had some detailed videoâ€s on Nickel Silicon Carbide plating, amazing stuff. Not to mention the honing and correct ring types in spring strength, surface and so on. MT have only released 2 videoâ€s so far, canâ€t wait until the next one. Iâ€m also finding tons of stuff on the net but I donâ€t get the spring tension on the ring. How can the ring bed into the bore correctly if it cant cut into the hone pattern because the surface is so hard. I have read a little about chromed rings but it still seems a bit hit and miss! Anyway Iâ€m sure it will all make sense eventually. Thanks again for the reply.

[mark]

The bores are lined with a ceramic type of compound over the aluminium cylinder,the lining is only about .002"-.005" thick and the aluminium underneath is not durable enough for long term use on its own
i have heard of some just using the aluminium, but its only in race use and the cyls are a disposable item with a set life in this case.
[/quote]
Can you sleeve a bored block as per the GS/EFE/GPZ blocks or will this interfere with the dome dimensions in the head.?

[Maj]

The bores are lined with a ceramic type of compound over the aluminium cylinder,the lining is only about .002"-.005" thick and the aluminium underneath is not durable enough for long term use on its own
i have heard of some just using the aluminium, but its only in race use and the cyls are a disposable item with a set life in this case.

Can you sleeve a bored block as per the GS/EFE/GPZ blocks or will this interfere with the dome dimensions in the head.?
[/quote]
I have heard of it been done.wouldn't leave much between cyls... and why when you can bore and recoat a cyl for probably similar price??

[Banter]

The bores are lined with a ceramic type of compound over the aluminium cylinder,the lining is only about .002"-.005" thick and the aluminium underneath is not durable enough for long term use on its own
i have heard of some just using the aluminium, but its only in race use and the cyls are a disposable item with a set life in this case.

Can you sleeve a bored block as per the GS/EFE/GPZ blocks or will this interfere with the dome dimensions in the head.?

I have heard of it been done.wouldn't leave much between cyls... and why when you can bore and recoat a cyl for probably similar price??
[/quote]

I think Mark wants to drop a sleeve inside the bore? At first that sounds a little dangerous as I would have thought that the sleeve would leave a lip at the top of the bore. But I wonder how this would impact on prime just before combustion, could it be a way of improving it or would it stuff the entire dynamics of the motor beyond a practical performance modification. In hind sight I think itâ€s possible but just not practical, from what Iâ€ve read Suzuki have put a lot of work into this design which works well, very light, extremely strong and durable and with the right facilities and skills relatively easy to maintain while still being cost effective. It also allows for larger bore configurations with the minimum loss of bore gap and maximum weight loss. Its surface friction qualities are, again from the little I know, is unmatched by any of the standard sleeve materials. In short, I canâ€t think of any reason why you would go another way unless your sleeve idea does end up being a cheap way of improving performance but the cost? Good thinking though Mark, certainly entertained me for a while. Ill put it down in my possible projects book for when I finally get my work shop / garage built

[mark]

The bores are lined with a ceramic type of compound over the aluminium cylinder,the lining is only about .002"-.005" thick and the aluminium underneath is not durable enough for long term use on its own
i have heard of some just using the aluminium, but its only in race use and the cyls are a disposable item with a set life in this case.

Can you sleeve a bored block as per the GS/EFE/GPZ blocks or will this interfere with the dome dimensions in the head.?

I have heard of it been done.wouldn't leave much between cyls... and why when you can bore and recoat a cyl for probably similar price??
[/quote]

Maj, I understand what you mean, though, if a block needs to sent to the US for recoating after boring, why not bore,drop in a sleeve, hone for probably a third of the cost ?

[Maj]

Not sure i would be comfortable having different materials in the same cyl block
If you want to try it i will donate a buggered block in the name of science ;)

[Banter]

Not sure i would be comfortable having different materials in the same cyl block
If you want to try it i will donate a buggered block in the name of science ;)

Maj, I was moved by your kindly offer but just in case our friend here may want to avoid some undue complications here are the prices for a change over from http://www.mt-llc.com/ in the USA
Inline 4 Cylinder
Price range depending on the extent of the damage
Example: Hayabusa ZX12 429.95—549.95US
Price List: http://www.mt-llc.com/Ordering/pricing.html
They have readymade mod's and its handy to have a supplier who is happy to assist their clients and also have a great reputation. From the video's I watch on their site the owner seem right into his work. I look forward to his next video

[jzbusa]

Id be worried about running 2 different materials also, especially the thermo properties & different expansion rates. Sounds like a recipe for disaster to me

In saying that, just look at the LS series chev engines, they seem to work ok, but maybe the core material is different.

I think if suzuki designed the block to have a certain bore coating then you should stick to it.

Metalurgy can be a science that few understand properly.