How do you break-in a new piston and cylinder?
Here’s what one MotoSport employee said about their break-in routine: Let the bike warm up normally, then ride the bike for around 10-15 minutes at a decent pace but without over-revving the engine. Then let the bike cool down for around 20-30 minutes. Then repeat this 3 or 4 times.
Should I hone my cylinder when replacing my piston rings?
When you order a new piston kit, cylinder prep instructions should be included and that should determine whether you hone your cylinder when replacing piston rings. Depending on the application, instructions for your new pistons will specify that the cylinder needs a bore and hone, bore/replace, or deglaze/hone.
When to reuse pistons or order new ones?
If either the piston or the top ring exhibit evidence of micro-welding, the only solution is a new set of pistons and rings. Avoiding a re-occurrence of this issue involves careful initial ring break-in that allows establishing early wear patterns that remove the tallest peaks early before maximum cylinder pressure is applied.
How can you tell if a used piston is still working?
One of the first things to check on a used piston is that the ring groove clearance is still within spec. Install the ring in the groove and use a feeler gauge to measure the clearance. Beyond worn ring grooves, high output engines and especially supercharged or turbocharged engines tend to load the top ring with far more cylinder pressure.
When do I need to hone my cylinder?
More often than not, you will need to hone your cylinder when replacing the piston rings. That is because honing creates small crosshatches in the surface of the cylinder, to allow the wall of the component to retain oil and provide lubrication for the piston ring.
If either the piston or the top ring exhibit evidence of micro-welding, the only solution is a new set of pistons and rings. Avoiding a re-occurrence of this issue involves careful initial ring break-in that allows establishing early wear patterns that remove the tallest peaks early before maximum cylinder pressure is applied.
One of the first things to check on a used piston is that the ring groove clearance is still within spec. Install the ring in the groove and use a feeler gauge to measure the clearance. Beyond worn ring grooves, high output engines and especially supercharged or turbocharged engines tend to load the top ring with far more cylinder pressure.
How are piston rings installed in an engine?
Locate piston ring installation instructions and read completely. (Each ring manufacturer has specific instructions.) Step 3 – Always install piston rings at their proper orientation, this helps provide a superior seal to the cylinder walls. Step 4 – The first piston ring to be installed is the oil separator ring.
Do you hone your block.010, do you need bigger Pistons?
Discussion in ‘ Engine Topic ‘ started by Joe Prather, Sep 16, 2007 . I’ve been doing some block prep on my engine. All of the cylinders are in good shape except one that has a few minor scratches. I would like to not bore the block, if all possible. I have a hone which has done a good job of cleaning the cylinders.