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Post by monstergy6 on Aug 5, 2012 19:19:53 GMT -6
I will check tomorrow, I will also check, I may have a bored out short case in stock
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Post by monstergy6 on Aug 5, 2012 18:48:24 GMT -6
if you have reason you will agree that that case was not bore correct and you will post pics of a new case that is bore so we can see the def. I will post one as soon as I get them back in stock, NCY is currently out of stock |
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Post by monstergy6 on Aug 5, 2012 18:31:01 GMT -6
I hafta' agree with monsterGY6 - it's impossible to decipher from the provided pics so far, whether or not the case boring (doubtful) or cylinder mating surface (possible) had anything to do with the failure. We'd need more/better close-up pics - preferably with a back-lit straightedge across the surface - to be able to tell anything definitive from this distance. And yes - that cylinder liner looks to be way, waay too thin to me - wouldn't doubt that as being the failure source. Bob Thank you, Thank you, finally a voice of reason on this thread, not jumping to conclusions based on a photo. |
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Post by monstergy6 on Aug 3, 2012 21:25:11 GMT -6
That is the way NCY bore their cases, we have sold hundreds of them, as well as all other NCY dealers throughout the USA. We have also built many many motors using the same cases, and we have never had an issue like this with any of the engines we have built.
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Post by monstergy6 on Aug 3, 2012 20:37:52 GMT -6
How come nobody is looking at the possibility of the piston, rings, skirt, rod, pin, clip failure and are focusing all the attention on the boring of the cases, the least possible cause for this kind of failure, whilst looking at a photo of the cases that have been damaged by the piston skirt, pin, and rod. Am I missing something?
What do you expect the cases to look like after the rod has slammed into them?
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Post by monstergy6 on Aug 3, 2012 18:10:13 GMT -6
These cases as I have stated are professionally machined out, and in all my 10 plus years of dealing with these motors, I can not remember seeing an engine fail with these cases, not being bored properly. There are many other issues that would have caused this motor to blow. I stand by the job NCY does on boring these cases, we have sold hundreds of them. As I stated earlier in this thread, take a good hard look at the photo's, what professional engine builder would have used all that gasket sealer, oosing out of the cases.
That dent was obviously done by that rod, pin, piston, and all the other stuff that went wrong with the way this person put this motor together, just look ho the skirts are broke off from the piston. This has absolutely nothing to do with the way this case was bored out, the cases got destroyed when the piston and cylinder came apart.
One more thing, if the boring was so bad, why did Clarence not call me up 8 months ago when he received the cases, and say he was not happy with the way the cases where bored out, instead of just going ahead and building the motor.
I stand by the way NCY bores out the cases, and we continue to uses them, and sell lots of them. Lets keep the Forum honest and fair!
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Post by monstergy6 on Aug 3, 2012 11:32:39 GMT -6
This is Steve from MonsterGy6 taking the opportunity to respond to this thread.
First of all the cases are bored out at a machine shop using the proper equipment, by NCY, not a Dremel.
The cases are bored and sold in matched pairs.
We have sold hundreds of the pre-bored NCY cases and have never had an issue, I have personally used them on all my custom builds, and again have never had an issue.
Has anyone given any thought, that maybe this motor was not assembled professionally, by whoever put it together? After all when we build our motors we don't have enormous amounts of gasket sealer oosing out all over the place. (check the photo's)
When a motor blows like this one has it will damage the cases, and make a mess.
So lets not blame MonsterGy6 and the boring of these cases until we know the facts.
lets also remember these cases were purchased in January, 8 months ago??
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Post by monstergy6 on Dec 21, 2010 21:29:52 GMT -6
I am getting ready to do a 50cc to 150cc conversion with a regular rear wheel, I will be posting photo's of that build pretty soon.
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Post by monstergy6 on Dec 21, 2010 21:26:55 GMT -6
I do sell them, just let me know what you need and I price it out for you. You can use the stock carb and manifold just add the clocking flange and the intake tube for the Uni.
Now I have never turned the carb forward on a stock scoot, only the ones we stretch, so we have plenty of space.
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Post by monstergy6 on Dec 21, 2010 14:31:34 GMT -6
Very nice Steven, great post, thanks. I'd still like to see some close ups of how you turned that carb backwards on that one scoot project if you got any. Rich Here is a close up of the carb install, this is the Velocita 30mm carb. For the stock carb we have a clocking flange that will help get the stock carb to fit nicely.  |
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Post by monstergy6 on Dec 21, 2010 14:29:06 GMT -6
We only have one for the 50cc frame, however, some of the frames are very similar and you can get it to fit. Here is a photo of the 50cc frame and see if you can send me a photo of your frame from this angle.  |
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Post by monstergy6 on Dec 20, 2010 12:58:37 GMT -6
Here are a few photo's of the latest 50cc to 150cc motor conversions. These are with the Fat wheel kit, we also have the regular rear wheel kits.   |
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Post by monstergy6 on Dec 11, 2010 8:34:17 GMT -6
It is more of an angle than normal, but it does not present a problem. The advantage is if you are running a Uni or K&N it is protected from rain etc.
Also on this kit the scooter is stretched, meaning the motor is almost 11" back, so there is a lot of room, you don't need to mess with the storage compartment.
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Post by monstergy6 on Dec 10, 2010 22:16:30 GMT -6
And we even have a wider tire that that one
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Post by monstergy6 on Dec 10, 2010 9:37:44 GMT -6
Thanks guys, the carb faces forward on this unit so the Uni is forward and I have a tube so as not to loose the compartment under the seat, also we have a 30mm carb on this one.
Twisted, mmm I like it. Thjis one has a 235 tire, but I have one that we will be starting on soon with a 235 rear Fat tire
These engine swap brackets are available for sale in a Fatty or Regular Tire.
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