|
|
Post by oldgeek on Apr 2, 2015 6:25:11 GMT -5
I hear ya on the money part. You might be able to reuse your cylinder ans juat get a hoca piston for it? Nah, cylinder is toast! Pictures don't really show the depth of the gouge very well. |
|
|
|
Post by Lucass2T on Apr 2, 2015 6:29:21 GMT -5
I've heard stories before that the ring pin (due to extremely hot and soft piston)got pushed in. It sometimes happens. I used to do an internship at VHM (from the golden billet cylinderhead) they also make pistons for mx and karting and they've had the same problems with some pistons. But a cast iron kit isnt done for with a seizure like yours. Just have it bored and honed and place a oversize piston  |
|
|
|
Post by oldgeek on Apr 2, 2015 20:12:41 GMT -5
I still cant find about 1/2 of the ring. I have looked all over twice, but I guess I have not looked in the right place yet. Kinda driving me nuts.
I have a new elcheapo iron 70cc cylinder I could do some major work on to try to turn it into something, but I don't know if it is worth the effort or the time.
|
|
|
|
Post by 190mech on Apr 3, 2015 4:19:12 GMT -5
The elcheapo isnt worth any time unless it has some very nice transfer ducts and port layout,if so exhaust port work is easy..
|
|
|
|
Post by oldgeek on Apr 3, 2015 6:56:44 GMT -5
Thinking about a $100 autotech iron cylinder, anyone have experience with them?
|
|
|
|
Post by 190mech on Apr 3, 2015 9:11:39 GMT -5
I had one years ago and it was very well made,theyve since changed suppliers,so they may not be as good now..I posted a port map of it,had an interesting exhaust port..
|
|
|
|
Post by Sitticuss on Apr 3, 2015 9:23:30 GMT -5
I'm a big autotech fan myself.
|
|
|
|
Post by 90GTVert on Apr 3, 2015 10:38:50 GMT -5
I have one with a fairly standard port layout from a few years ago. Used it on Project 49, during the OR test vids, and racked up many miles on it. Still in good shape. Nothing really special, but a good piece. As John said, the exact kits change from time to time. I don't think quality will be an issue judging on past experiences and reviews here.
|
|
|
|
Post by oldgeek on Apr 26, 2015 20:03:39 GMT -5
I broke down and ordered another iron Streetrace 70cc cylinder today. It was only $141 US shipped. I decided to get the same cylinder I had on there so hopefully I can just slap it on quickly with minimal work. It has been a drag not having anything fast to ride, since the 99cc zip is down also.  |
|
|
|
Post by Sitticuss on Apr 29, 2015 5:59:10 GMT -5
Old people are supposed to drive slow...Your going to ruin our reputation...  |
|
|
|
Post by oldgeek on Apr 29, 2015 6:24:53 GMT -5
The new cylinder should be here this week and I just realized I never found the other half of the piston ring? I guess I get to split another set of cases.  |
|
|
|
Post by oldgeek on May 5, 2015 16:39:40 GMT -5
Look what the mail man brought for me today! Now I gotta decide if I am going to split the cases to see if I can find the missing half of the ring, or say screw it and just slap this thing on! We have so much work to do, I don't know when I will have time to work on it. I will likely get the 99cc Zip going first, then split the cases on the 70cc to find the ring. I guess it would be stupid to roll the dice on a $150 kit.  |
|
|
|
Post by Lucass2T on May 5, 2015 17:25:16 GMT -5
Oh man that situation is a pain! Do you go through the hassle of splitting the cases to find out there's nothing there?...Or take the risk of another engine failure because you where too lazy haha!
|
|
|
|
Post by 2TDave on May 5, 2015 17:43:14 GMT -5
I'm assuming you checked the pipe.
|
|
|
|
Post by nelson on May 5, 2015 20:53:34 GMT -5
I think I would fish around with a magnet stick in the bottom end and see what I could pick up. I have cracked a case when a piece of skirt wedged between case and crank, that sucked! I guess it depends on how valuable your time is? It's likely nothing is in there but if there is and you get it all together...
|
|
