Who here can machine my head?

[atctim]

Does anyone on here do "good" machining work" My ATC500 (CR500) head is warped - I need someone with skills to make it good again.

It got warped when I was getting the part welded in for the decompression release. I have trid sand paper on a piece of glass - it is just too much.

Need advice here guys! Need this done ASAP!

[200x Basket]

any automotive machine shop can do it. i just lapped my head with 400 grit today.

[atctim]

I lapped and I lapped - but it is still leaking. Was looking to send it to a board member - you know - keep it in the family.

[200x newby]

get a hold of Yamahondaman! contact him over on .Org!

[trizilla]

hey tim, my local machinest may be able to do it... if interested i'll call him in the morning.. let me know..... oops, sorry man just read the whole thing and he's not really a 3 wheeler die hard.. very good machinest though..

[smvorndran]

Let's see a picture of the head. I could do it if I had a way to fixture it. I've ground a few heads in my time on a surface grinding machine. Machinist for 12 years in the tool & die/stamping industry.

smvorndran

[atctim]

If Ronnie can't or doesn't want to do it - I'll get hold of you Trizilla - then smvorndran is next in line. It will have to be taken down a very very little at a time as piston clearance is super crucial at this point.

[honda250sx]

Ronnie's no damn joke
http://i71.photobucket.com/albums/i151/brauerpower/DSCN2497.jpg

http://i71.photobucket.com/albums/i151/brauerpower/DSCN2965.jpg

Ronnie can hold .0002 tenths on most heads. Thats just silly flat.

[Billy Golightly]

Ronnie did the head on my 500 tim and also re-domed it. I just talked to him this evening and it sounds like things are getting a little bit better at his shop where he'll be more available for "special" projects so you might drop him a PM.

[ProCarbine2k1]

Chris Thomas (419) 747-3523, located in mansfield oh. Not too far from sunset ramblers. one of the best machinists around, period!

[atctim]

thanks to all!!!

[cr480r]

I would have it done locally... considering how simple the procedure is, IMO it would be a waste of money to mail it twice... unless you plan to rechamber the dome I would drop it off at a local machine shop... you might even get back the same day..

[atctim]

I don't trust many people with work like this. Too many - "ooops - we didn't know" jobs have come back to me in the past. Just the fact that I have all the investment into this of the decompression release built into the head - it is a "One Off" head.

Ronnie came through for me - and he obviously knows what he is doing. Thanks to all for the suggestions and all though.

[brapp]

if you can brign it up we can take it to my buddies machien shop and we coudl deck and rechamber it dependng on what kind or power u want out of it?

[atctim]

What is all this talk about decking anyway? What does that mean? I have heard the term - but am unsure of what it is.

I really don't need anymore power than what it is putting out right now. It is sick - for anyone who has ridden a 2-stroke 500CC trike - you know what I mean - it has more than enough power as is!!!!!

[cr480r]

What is all this talk about decking anyway? What does that mean? I have heard the term - but am unsure of what it is.

Same as milling, shaving, cutting, etc..

[atctim]

So what are the advantages of decking? I only need this done to true up my warped head.

[Billy Golightly]

Decking cuts material off the bottom of the head, it trues and flattens and also raises the compression levels because the dome of the head will then be closer to the top of the piston.

[brapp]

but if it gets rechambered you can retain the stock compression also and you can also dune the squish band also for diffrent types of power by the way the chamber can be cut. and if your runnign a 500 and i woudl strongly coincider o- ringign the head also dependign on what year motor it is?

[dickieg89]

my neighbor has a real deal machine shop, from race cars to rockets he can do it. So lemme know if you need my help. he also did over $100k worth of work last year for my company, so no joke he's good.

[Liquid-Darkness]

Before
http://img2.putfile.com/thumb/3/7411083074.jpg (http://www.putfile.com/pic/7826564)

My 250R head after Ron turned it. It has lots more pep now. Look at the size of the rechamber 19cc's!!
http://img2.putfile.com/thumb/5/13423105582.jpg (http://www.putfile.com/pic/5464547)