And woe are the trouble that burden the worlds fastest...Quote:
Originally Posted by DanDaMan
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And woe are the trouble that burden the worlds fastest...Quote:
Originally Posted by DanDaMan
So I've just completed measuring the actual displacement of a stock 167fmm...
I used a liquid volume method using compressor oil.
Measuring the piston contribution was the most difficult part.
It was difficult sealing the depression it created in the molding compound to get an accurate measure before it started to leak...
But i would estimate I'm within 3 %err.
Anyone care to take a guess what our actual compression ratio is?
8.5:1Quote:
Originally Posted by axa
Anyone else??Quote:
Originally Posted by ben2go
Lets make it interesting.... first correct guess gets 50% off an axa decked head....
not that this guess is wrong.. maybe, maybe not... :naughty:
speaking of which, im curious to know who might be interested in getting their heads worked?
i suppose it would be a matter of how much it would cost and how much performance gains could be expected...
but im not so sure who is willing to go through the trouble...
i mean, i could have done this along time ago, but never bothered until i blew up the engine...
Bummed out today.
Turns out my new head came with a bent exhaust valve.
Valve would hardly open so i couldn't even slip it out of the valve guide.
Taking it apart revealed the valve stem was not only bent, but it wiggled a bit in the guide.
Removing the springs and keepers show rash on top of the stem so it was likely dropped when they were installing the springs... but they said 'fuck it' , assembled it and sold it anyway... nice.
Now i will have to fight with this F rated company with the BBB, to get a replacement...
The cylinder also arrived all banged up on the top, with one major dent on the edge of the cylinder. It was so bad that if the piston reached that far it wouldn't have let the piston to pass. good thing the cylinder has 2mm piston edge to deck height and this deformation was only half that deep.
Besides which, the surface needs to be machined as not only its nicked up, but some of these will interfere with the seal. That and the RA (cut finish/smoothness) is so bad itself that it wouldn't likely maintain a seal.
I can machine most of this this stuff out out, but the common joe wont be able to.
Its proving hard to find parts as it is, let alone ones that dont arrive useless...
I used to work on big freight hauling trucks for many years. WE had ordered 3 rebuilt cylinder heads for for a Cummins inline 6. I pulled one out of the box and found a valve keeper missing. If someone would have installed that head and not noticed, it would most certainly have dropped a valve right quick. I'd take photos of that thing and get ready to email them. I've seen a lot of piss poor new parts, and rebuilt too. Like parts from the oldest of the two US motorcycle makers. Parts that make you wonder if a blind monkey might be doing the quality control work. It ain't only Dong Fang.
This will anger some, but here goes.Quote:
Originally Posted by birdmove
It's pretty simple, really, but probably to late to fix. Our special interest reps at all levels of government have whored themseves out to almost any bidder. They're not even escorts. They have become $20 street ho's. NAFTA is an on-going example of that - one that destroyed our countries economy with "outsourcing." China now makes almost everything and China now sets the quality standards for the world. Repeal NAFTA. Force our elected officials to maintain ethical and financial standards. Problem solved. As a side note: I have a buddy who had to sell his American-made Victory to make the $800/mo Obamacare premiums. Yes, he had coverage before.
anyone with a infrared thermometer (and running bike of course) care to get there engine nice and hot and take some readings for me??
Im looking for the following in order to best guess the max CR i can go with.
- Ambient temperature (current temp)
- hottest temperature found on the engine/ where it was found
As i mention we got time as i have to ship these new parts back to have them replaced, so any help is appreciated.
Hi, who are the manufacturers of the Cleveland bobbers in china
you mean who ASSEMBLES the CCW bikes in china.Quote:
Originally Posted by Sunfor
its a lifan 167FMM engine, the rest is really negligible... rims, tires, brake, bearings, and all components come from a variety of actual manufactures. Perhaps they bend and weld up the frame, though I doubt it...
why not ask CCW directly, no doubt they will insist they make it themselves, in their own factory, with American workers none the less.. :jerkoff: