0
What else can I help you with?
Where does maximum cylinder bore wear normally occur and why?
most cylinder wear occurs at the top fo the ring travel. Pressure on the top ring is at a peak and lubrication at a minimum when the piston is at the top of its stroke
What causes the bore measurement to be larger at the top of cylinder than bottom?
The bore measurement is typically larger at the top of the cylinder than at the bottom due to factors like thermal expansion and wear patterns. As the engine operates, heat causes the cylinder walls to expand, which can lead to a slight increase in diameter at the top where temperatures are generally higher. Additionally, wear from piston movement and combustion can cause the top of the cylinder to experience more erosion over time, resulting in a larger bore measurement at the top compared to the bottom.
What causes cylinder taper?
Taper is the wear of the cylinder bore that causes that bore to be cone shaped or "tapered"This caused by several factors including:Fuel washing oil off the cylinder wallsThe side forces created by the operation of the piston against the crank through the connecting rodAnd many other factors
Where on the cylinder walls does the greatest amount of wear occur?
The greatest amount of wear on cylinder walls usually occurs at the very top of the cylinder, near the combustion chamber. This area is exposed to the highest temperatures and pressures during the engine's operation, leading to increased wear.
How do you determine how much to over bore engine?
You determine how much to bore an engine by how much wear is on cylinder walls if wear exceeds .003 thousands over factory specs then it must be bore to the next .010 thousands over cylinders are only bored in .010 thousands increments and every measure is using factory specs as reference point
What is the maximum cylinder wear on a Chevrolet 350 engine?
If you have to ream the ridge to get the old pistons out, you probably need to bore the cylinders and install oversize pistons. This assumes it was taken apart in the first place because of low cylinder pressure or excessive oil consumption (ie: worn rings). If there's not enough ridge to prevent you from pushing the pistons out of the bores, you can probably hone it out and re-ring the old pistons. If there is a ridge at the top of the cylinder, you need to bore it. The general consensus is that a rebuilt engine will wear out rapidly if there is any amount of taper. If you can catch a fingernail on the ridge, it's too much The upside is, if you bore it, put in new pistons and polish or turn the crank and replace the oil pump, you effectively have a new lower end and it should last 200,000 miles if properly maintained.
Is the cylinder sleeve nikasil coated on a 1995 yz 250?
The YZ250 cylinder is nikasil coated in the original bore. But, note that the cylinder is all aluminum and does not have a cylinder sleeve as an original part. The original aluminum bore is part of the cast cylinder and is then plated with the nikasil plating. If the cylinder should be damaged by wear or piston seizure, it can be repaired by boring and installing an iron cylinder sleeve. The cylinder sleeve will have the two-stroke ports already machined into the sleeve. Once re-sleeved the cylinder now can be bored to standard size and then to many overize pistons available on the aftermarket. This is a popular method for repairing nikasil plated cylinders economically. A good source for tech info or service is www.lasleeve.com
Can you put a use piston in?
no no no no no, and once again to solidify my point, no! as the engine is used your pistons, and cylinder walls wear in a certain pattern, and they have a different level of wear from car to car, what you have to do generally is send the motor to a machinist to bore the cylinders out slightly, then get new oversized pistons
What is the difference between Briggs intek and Briggs diamond I C?
Intek Pro, Vanguard, and I/C engines are for heavier duty Industrial/Commercial applications. The cylinder has a cast-iron sleeve insert. Standard Intek and Powerbuilt have an aluminum cylinder wall. These are for general and consumer use. Diamond refers to a Diamond Bore cylinder, a special preparation of the cylinder for better wear and oil consumption.
What are two ways that cylinder bores wear?
Cylinder bores wear primarily due to friction and heat generated during engine operation, which can lead to abrasion of the surface. Additionally, the presence of contaminants like dirt or metal particles in the oil can exacerbate wear, causing scoring or scratching on the bore surface. Over time, these factors can result in a loss of compression and increased oil consumption, ultimately affecting engine performance.
How do you repair blown cylinder?
Repairing a blown cylinder typically involves disassembling the engine to access the damaged cylinder. Inspect the cylinder walls for cracks or excessive wear; if repairable, hone or re-bore the cylinder and replace piston rings. If the damage is severe, you may need to replace the entire cylinder or consider a full engine rebuild. After repairs, ensure all components are cleaned and reassembled correctly, and perform a thorough check before restarting the engine.
Can you use slugs in a double barrel shot gun?
You can shoot slugs in a double. Slugs are best shot through a cylinder bore or improved cylinder choke. The tighter the choke, the more they will be disrupted. There is risk of excessive wear and damage through a tight choke--tighter than Modified Choke.
