Alright, this is wierd...

[AoD]

Ok, wednsday at the track.. After we were done, and everything cooled off... I checked compression on my motor.. And thought she was closer to dying than last expected... Woke up this morning, tested it.. Alot of compression now.. What the heck?

Ran like a charm too, for all 4 tanks!

BUT I've finally decided what I'll do for a new mill. But first I have a few questions..

The rebuilding process... How is it? I can get a piston and sleeve kit for the .15 for only 30 bucks. How difficult is it to replace the piston and sleeve? I understand how to build bigger motors, just wonder how difficult it is to rebuild this kind of motor.

What else would I have to do. As for the bearings and stuff. Since I can rebuild for 30 or so, I want to make sure that I can take it for that only. I know bearings, but how do I make sure everything is ok, and what I need to do to my mill before rebuilding is a perfect option.

And I know that I have to re-break it in after a rebuild

 

[Rob D]

true rebuild is bearings and all at which time its cheeper for new engine ..as to how hard to do piston and sleeve its a cake walk

 

[AoD]

Here's my worries into entering the procedure. How to take the connecting rod off the crank, and out of the piston. The rest I pretty much understand.

 

[Rob D]

pull the sleeve then ya can pivot the rod off crank..and the piston is held onto rod with a g clip remove clip pull pin piston falls off :coffee

 

[SilentHunterKellen]

Want links to engines?...Probably be way cheaper if you plan on buying bearings too! A TRX 2.5 would be good. If this is for off-road look into a .12 orion wasp. Those are great Off-Road Engines.
[move]-Kellen[/move]

 

[mjime714]

I take apart my engine probably once every month to inspect it and clean it. Rody Roem of RB said that its better to do that than just dropping after run. Rob is right on about taking the rod off the crank, the tricky part (for me at least) is taking the pin out of the piston without bending the spring to badly. Another hard one is taking out the bearings which I have not done yet. One way of doing it is baking the block to expand it and while its hot, take the bearings out. Same when you put them in.

Here is a link on how to do it, and how to mod an engine if you want to try. I'm going to do mine as soon as I have enough to by my new mill.

 

[AoD]

Thanks, it looks pretty simple compared to my nightmares. I'll have to give it a try.. As for compression on my .15 It's growing for some reason.. I could NOT turn the flywheel by hand today, and it wasn't hydrolocked either. It was just afterrun oiled LOL I actually am growing to like this motor somewhat.

 

[kwong2001]

Maybe it's cuz the metal expands...i dunno