Spyvsspy
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Hey folks...I'm trying to install a 94mm big bore piston on my drz but I couldn't get the cylinder over the rings. Just wondering if anybody has a piston ring compressor that i could borrow. Located in San Antonio
Hey! I didn't know you were on here. I just do mine on the bike and work in one ring at a time. All you need is a thumb sized "dollop" of oil on the cylinder wall and it should be pretty quick. Make sure the openings are approximately 120 degrees apart around the piston. you will find it is much easier than it seems when you first look at it. Get a hold of E. Marquez (Erik) and he can tell you what you need to do, sir. Good luck, maybe we will bump into each other on a ride some time.
I have often used cable ties, put a cable tie around the ring and pull it tight, it compresses the ring into the piston grove and then as I lower the barrel onto the piston, it just pushes the cable tie down and eventually the cable tie will drop off the bottom of the ring. Just cut the tie and remove it from the con rod and you are done.. Not as good as a proper ring compressor but cheap and easy.
Gary
Do you have to stagger ring gaps like some autos were?
Do you have to stagger ring gaps like some autos were?
When I did this without a helper I made a thin wooden holder with a slot wide enough for the rod to go through. With the piston on the rod turn the crank until the skirt rests on the wooden holder. This keeps the piston still and aligned with the cylinder as you lower it and guide the rings in. Almost like having a third hand. Once the piston is in the holder lides out and you can seat the cylinder.
So, did you get it in and running?