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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Engine » Big Mechanicals: Head, Cyl, Piston, Rod, Crank, Flywheel, Cases, Bearings » Archive through September 02, 2007 » Oops -- Piston to head contact « Previous Next »

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Bomber
Posted on Sunday, April 15, 2007 - 11:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

In this, the latest chapter in "As the Buell Turns"

or, in this case, as it doesn't turn ;-}

- 2000 M2 cases,, crank, conrods
- CP pistons (10.5:1)
- Millenium 1250 CYlinders
- XB heads
- Cometic gaskets (pn 160-050)

Upon assembly of the engine, the piston contacts the head for approximately 10 degrees on either side of TDC -- contact point is on the left and right sides of the piston/heads, 90 degrees from the valve locations

should I:

install a second basse gasket?

get thicker base gaskets?

turn the entire project into a planter for magnolias?

thanks, all, again, for your help ==
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Bluzm2
Posted on Sunday, April 15, 2007 - 11:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Shoot a note to Brian or wait for the Queen Of The Universe to chime in.
"Oh Pammy where are you!!!"
My bet is a thicker base gasket and possibly a thicker head gasket.

I'm not sure if doubling a base gasket is a good solution for keeping leaks at bay long term..
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Bomber
Posted on Sunday, April 15, 2007 - 11:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Brad -- mirrors my thinkin -- I've shot the note you suggested (but the guy's been pretty non-responsive -- no complaints, I bought the kit used, and any time he spends answering my questions is off the clock., unless he asks for payment, which I'd glady give)

I also dropped a line to Cometic

I'm already SOOOOO far into karmic debt with her majesty . . . . .don't know HOW I'd ever get out ;-}
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Road_thing
Posted on Sunday, April 15, 2007 - 10:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey, do you have a fly cutter?

Here's a great chance to make some real expensive swarf...

rt
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Rocketman
Posted on Monday, April 16, 2007 - 04:30 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Bomber, do yourself a favour and acquire Denish's V Twin tuning manuals.

You can buy no better and they will help you understand a lot of the math and mechanics involved. They truly are invaluable, especially to someone in your situation. It's all in the learning sir!!

Rocket
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Bomber
Posted on Monday, April 16, 2007 - 08:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Rocket -- good advice -- thanks for hte tip -- and, you're right, most everything is in the learning, I believe
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Revperf
Posted on Monday, April 16, 2007 - 06:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Bomber,

Give me a call tomorrow and we will see if we can get you figured out. Brian has been neck deep in simultaneous 5 axis CNC and has been offline for a good while. You said XB heads with a T-Storm 1250 kit? If this is the case then the heads have to have a 15 degree angle CNC'd into them.

Scott
920-892-2109
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Bomber
Posted on Tuesday, April 17, 2007 - 08:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Scott -- thanks! will do (didn't mean to badrap Brian, btw, hope it wasn't taken that way)

perhaps different pistons are the way to go? all will be revealed in the fullness of time ;-}
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Firemanjim
Posted on Sunday, April 29, 2007 - 08:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

John,what became of this??
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Pammy
Posted on Friday, May 04, 2007 - 03:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Oooh, I see what kind of trouble one can get into when one is left unattended...

Ya ever hear that Ernie Ford song that says, "I owe my soul to the company store"?

I hope you got it all taken care of, my friend. I have been off(in Georgia) playing Grammy to a perfect angel.

Let me know if you need my assistance, but it sounds like you have it under firm control.
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Blake
Posted on Sunday, May 06, 2007 - 03:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Calling the BadWeB Bomber?
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Bomber
Posted on Monday, May 07, 2007 - 12:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

all -- thanks for checkin in, but other life events have gotten in the way of my wrench spinning and communication duties -- more data soon, film at 11

;-}

thanks for checkin, tho -- you get get me all teared up!
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Blake
Posted on Monday, May 07, 2007 - 06:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Why, cause she said "firm" and that brings back fond memories? ;}
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Road_thing
Posted on Monday, May 07, 2007 - 08:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

"firm?"

I'm happy with "heavy"...

rt
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Bomber
Posted on Tuesday, May 08, 2007 - 09:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i'll take either, thank you very much ;-}
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Blake
Posted on Tuesday, May 08, 2007 - 05:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

There may be hope. Rumor is there may be a new Scotch fixin' to hit the market, "Glenviagra"; it's especially for old drinkers of Scotch who would like it straight up.
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Road_thing
Posted on Tuesday, May 08, 2007 - 10:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm going for the new miracle drug:

"Mydixadril"

rt
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Bomber
Posted on Wednesday, May 09, 2007 - 09:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

heck, I was, at one time, known as the Ernie banks of substance abuse "Let's take TWO!"

I'll give durned near anything a whirl -- once

twice if I like it!
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Shadowracerx1
Posted on Wednesday, July 18, 2007 - 11:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've just run into this problem with JE pistons 10.5 CR. Will the squish band address the issue or will the combustion chamber have to be altered?

thanx
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Blake
Posted on Wednesday, July 18, 2007 - 05:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You'll need to know the specifics of the piston geometry to figure that out. That'll take one of the experts chiming in. I'll see if I can round one up for ya. : )
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Pammy
Posted on Wednesday, July 18, 2007 - 06:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

pictures please...dimensions...anything?
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Blake
Posted on Thursday, July 19, 2007 - 12:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

"pictures please...dimensions...anything?"

Y'know in this thread, being it involves RT, and Bomber, and yours truly, but especially RT, you might oughta clarify that request.
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Pammy
Posted on Thursday, July 19, 2007 - 10:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I am easily entertained...I'll take my chances
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Road_thing
Posted on Thursday, July 19, 2007 - 11:55 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Brave lady...

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Shadowracerx1
Posted on Friday, July 20, 2007 - 10:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I called nrhs and shipped my heads to them. They are going to bail me out of this one. I gave them the part number of my pistons and the head type.
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Shadowracerx1
Posted on Friday, July 20, 2007 - 12:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

To clarify... they are going to cut in the squish band and relieve the chamber for $150.
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