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posted July 02, 2002 01:49 PM
Edited By: swft on 19 Jul 2002 12:04
1270 rebuild Ok, got the gasket set and new cases today. There's still a few more things to pull out of the old cases, then I'll be shipping them off to a boardmember to use as a mule for building a frame, I believe. Don't know when the crank's going to be done, but I do know that it's being worked on. Millenium has the cylinder, and it's my understanding that they are the best for this kind of work. So barring any unforseen things going on, the motor should start coming back together sometime after Laguna Seca.
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posted July 15, 2002 04:23 PM
The crank is back in town, and the cylinder is on the way back from Millenium. Wow! I might have the black 1270 back together next month!
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posted July 17, 2002 07:03 AM
Cylinder is back! All the parts are in town, now to find time to put it back together!
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82 Gpz750, 84 Ninja 900, 2000 ZX12R (Muzzy Big Bore Kit), *another* 2000 ZX12R (Muzzy custom stroke crank 1341cc motor), 2004 ZZR1200, 2005 ZX10R, 2007 ZX14, 2008 Concours 14, 2014 Versys 650, 2014 Yamaha WR450F, 2015 Ninja H2
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posted July 17, 2002 03:41 PM
The same guy that does the cranks for Muzzys. He's located here in the Pacific Northwest, so turnaround time is pretty good. And honestly, I couldn't tell, till Mike Velasco pointed out the slightly different color in the steel where he built it up and then straightened and balanced the crank.
posted July 17, 2002 07:03 PM
We affectionately refer to the Crank guy Spud Boy as he is located in Idaho!!
____________
To those who do not count their life in years, but in how life
has touched them in the past and how much it can hold in the
future; -- Youth is forever.
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posted July 17, 2002 07:51 PM
Edited By: swft on 19 Jul 2002 07:21
It was kind of appropriate that the first project that I heard about was taking a VTX and making it a single pin crankshaft! (Potato potato exhaust note inserted here).
posted July 17, 2002 09:20 PM
Care to give his name, contact info?
That is the kind of service that
that i would like to have access to
should the need arise.I bet others would
like that info too.
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posted July 19, 2002 05:55 AM
Swft's 1270 Rebuild:
Required tools:
About $18000 worth of snapon tools Seriously, you are going to need good metric tools for this kind of work, don't be afraid to buy the best you can afford!
The ZX12R Service Manual. Don't leave home without it!
A mechanic with all the experience necessary to do the job.
This project starts with the following conditions:
1. Rewelded, straightened, balanced crank
2. Rewelded, nikasil'd cylinder block
3. New crankcases
Crankcases:
Before attempting the crankshaft installation, there's a lot of stuff that needs to come off the old set of cases, and go onto the new cases. This isn't really detailed anywhere, so you have to go over the old cases and move the stuff bit by bit. A good example of this would be the baffle above the oil pan. It's held in with a thick bead of RTV, and you have to move that to the new lower half of the case.
Interesting how the cases don't come with a EIN! Guess I'll just have to add my own. Actually, this does make life easy, in that I will just transfer my existing EIN to the new cases:
Crankshaft:
I tried to get some pics that show the chamfering of the oil galley holes in the crank. This will promote a greater flow of oil in the bottom of the motor. The crank's been rewelded, straightened and balanced.
Don't know if it shows up, but the metal on #4 is a slightly different hue than the other crank journals. The crank dude did a great job!
Cylinder:
Millenium was the only place that had the expertise to do this work. They grafted in a new piece, checked the bores for straightness, then nikasil'd the cylinders.
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posted August 06, 2002 06:08 PM
Got started on the motor rebuild today. Also, the swingarm is ready to be picked up, and I've got the new bearings for it. Gonna get *busy* with things soon!
posted August 07, 2002 01:22 AM
Does Millenium have a web site? If not, how about an address and phone number.
____________
Candy Persimmon Red may be slower, but I'm trying!
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posted August 07, 2002 06:50 PM
Was a good day! Came home and found the UPS box with the crank bearings and the valve springs on the porch. Yesterday, we hogged out the oil return paths. Went from 3/16ths to about 13/32nds. Plenty of meat to work with:
posted August 08, 2002 12:24 PM
Master lube instillation? SWFT. In the original thread recounting the demise of your 1270 (ignoring the handbags at dawn sir!...) you mentioned the masterlube product and said you were thinking of installing one. If I remember correctly not on the 1270 but on a 1340? Did you progress with this? Reason I ask is I'm helping a kit car manufacturer who is suffering from premature failures of bike engines used in his cars. I'm pretty certain a big factor is oil starvation. any news on the masterlube or any advice/info would be a great help.
Thanking you.
I haven't gotten off my ass with regard to this one. Still trying to get the 1270 back together.
Started pulling the head apart today, got to the valves for #4 cylinder...
Found some fishhooks...
At least that's what the two exhaust valves on #4 cylinder look like to me. The good news is that the valve guides check out ok. Replacing the exhaust ($15) and the intake valves ($25) for that cylinder. Haven't bothered calling local stealer, but I would imagine the price would be at least double for the same things. One nice thing, the collits are only $0.70 each.
posted August 08, 2002 08:10 PM
The white look of that valve should be saying something.........what is it saying?!?!?!
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All must bow to the "Ra Supremecy"...
Who is the supplier of 1270/1361 pistons to Muzzy? I am going to have my cylinder block sent to Millenium, welded, overbored, and replated so I would like a source for just the pistons/pins/rings.
Do you know what the exact overbore and tolerances are? Also, anyone figure out your crank guy's name? I would like to send my stock crank in for welding as you did yours. I have left a few messages at MVR but no return calls yet (not complaining, just letting you know I am attempting that avenue as well).
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posted August 15, 2002 12:51 PM
Edited By: swft on 15 Aug 2002 19:02
Those are JE pistons. Sorry, no I don't know the exact numbers. I'll be seeing Mike and will have him give you a call. What's your number? Email it to swft@charter.net
posted August 15, 2002 09:38 PM
You guys begging for the names of the crank guys that build the cranks for guys like MVR and Muzzy etc. need to get a clue. The internet is a powerful tool. The people that these engine builders count on, take about four to six weeks at the present time to do a crank for them. You all want to know their source so that you and about a million other guys can send your cranks to them. The results are the crank guys are over run, and the engine builders no longer have a source for their crank work and they get to sell hotdogs for a living. Oh yeah, they get put in this position because they gave away one of their key resources for free.
____________
To those who do not count their life in years, but in how life
has touched them in the past and how much it can hold in the
future; -- Youth is forever.
posted August 16, 2002 01:24 AM
ZH,
we are on the same wavelength, so this is not a critcism, but some of the guys "begging for the names of the crank guys" may not be trying to cut MVR, Muzzy et al out of the loop, but may need more than just a stroker crank. Maybe they had damage, or other special needs????? Again, I agree with you that the 1st place to go is MVR, Muzzy, etc (Lord knows, I do), but there are likely to be special needs now & then, eh? ____________
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posted August 16, 2002 03:28 AM
Edited By: 12RPilot on 16 Aug 2002 04:29
Sounds like there is a market out there for crankshaft rebuilders. Makes me wonder why a machine shop that is taking 4-6 weeks doesn't add an extra machine and crank man. Unless it's some black art and there is only one good crank man born every 7 years. (I know I wonder about strange things, but supply and demand problems intrigue me.)
____________
If you aren't an AMA member, you're part of the problem.
NESBA #209
posted August 16, 2002 07:29 AM
I hvae found that there is money to be made in Crankshafts and drive line work. But that said, not being a machinist finding the skilled people and buying the shop and equipment is a big investment that as of yet I have not been willing to make in a field that I am an expert consumer in without any skills to operate the supply side!! I have located a expert driveline machinist but as of yet know one that I trust in the crankshaft side as of yet.
The other thing about the really good crank builders out there, is that for the most part they are sort of artists. If you know any artists, they are motivated differently. Not everyone wants to be rich. They make a good living, play with their toys, play with their machines and welding equipment!
____________
To those who do not count their life in years, but in how life
has touched them in the past and how much it can hold in the
future; -- Youth is forever.
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posted July 02, 2002 01:49 PM
Edited By: 
Seriously, you are going to need good metric tools for this kind of work, don't be afraid to buy the best you can afford!
posted August 08, 2002 12:24 PM
