Cost to replace piston rings on a Chevy 5.7L 350?
The engine has to be removed for ring replacement, because the cylinder walls need to be honed. Labor will easily top 1,000 and parts will be 400-500 easily. Before you get into tearing the engine down for ring replacement you first need to find out if that is the problem because 112,000 miles is relatively low miles for rings. Valve seals could easily cause you to burn oil and are easy to replace without removing your engine.
Replace piston rings from the bottom?
you can remove the pistons from the bottom but you will almost never get them back in from the bottom as there is nearly no chance of getting a ring compressors past the block journals,and if you are going to re ring the engine and leave the poor old top end as is,you will probably find parts of the head(valves,gasket,etc)will more than likely fail soon due to the increase in compression,if the lip on top of the bore is that great you are going to break the new rings on install its a fair bet you will need new pistons to take up the extra clearance or you will be wasting your time and money.
How do I replace Piston Rings on a 125cc dirtbike.?
I just bought a 125cc 4-srtoke dirtbike off of my buddy, his dad knows alot about bikes and he said the engine is seized and all you need to do is replace the piston rings. Is there a special way i have to take off the cylinder head and is there a special tool i need to put the piston rings on with. I have a general understanding about engines because i took my pocketbike apart and im taking auto. Please leave real answers cause i don't want to f this up.
What are piston rings, and why does it cost $1800 to replace them?
They seal the pistons... and they cost $1800 because the job is labor intensive and your mechanic needs to replace his central air.
How many hours would it take to replace piston rings on 82 honda magna?
I have an 82 magna that needs new piston rings. I have never done that kind of work on a bike before. I was wondering how many labor hours it would take to do the work? I'm trying to get an idea of what its gonna cost. Also are the clymers manuals pretty clear? Would I be able to do it my self? I'm fairly mechanically inclinded and good with directions, I don't wanna tear anything up, but on the other hand if I can avoid spending 5 or $600 that'd be nice too.
Is it better to repair or replace piston rings? Which is more cost effective?
When measuring piston ring end gap, check the gap with the piston rings at the top and the bottom of the bore. If the bore has taper the end gap will be larger at the top and smaller at the bottom.Use the bottom position to set the end gap. If you use the top of a worn bore to set the end gap, the end gap will be too small when the piston reaches the bottom of the bore.When replacing piston rings, the cost will be determined by several factors. The make and model of your vehicle is one example. You also have to consider the type of engine that’s in your car and the condition of it. Most mechanics are going to charge around $1,500 minimum to perform this job. Some may even charge as much as $2,500. The reason this replacement job is so expensive is because it is a complicated task. The engine of the vehicle has to be completely disassembled first and then the cylinders of the vehicle have to be reconditioned. After that, the car gets reassembled using all the parts that were taken off originally. Only an experienced mechanic can perform this task, which is a very long and intense project that takes several hours to do.
Replacing Piston Rings - worth it on 2002 Accord w/ 100,000 miles?
PS: Make sure the quote for new rings and bearings includes shop time to have a machine shop (or Mechanic #2) check and rebore (as/if needed) the block's cylinders bores and tank clean the block. Simply putting new rings in it without a machine shop inspection would be worthless if this is the cause of your continuing oil consumpion problems. It would be prudent to confirm that your Positive Crankcase Ventilation (PCV) valve is is good working order. This is a sub $5.00 part that, if malfunctioning, will produce severe oil loss with nary a whisp of visible smoke. I am not familiar with the placement of these valves on honda motors but on most of the GM's I have owned they are a single 1/2 inch cylinder about an inch or two long connected at either end to rubber hoses one leading to the bottom half of the motor, the other connecting inline with the air intake system. I have seen these for sale in a 90 degree right angle bend form. A Haynes or Chilton's manual can tell you where yours is specifically. These valves should rattle when shaken and if it doesn't it means it is likely to be constantly venting vaporized motor oil into the air intake system to be sucked into the combustion chamber. At your mileage it is VERY likely. Something to be checked and confirmed to be functioning properly (specifically looked at and verified one way or another on paper from your repair shop) before the huge expense of rebuild or replacement of the engine is undertaken. I have had many vehicles with over 100,000 miles and not one has had a problem with engine rings. I've rarely had a ring problem that couldn't be remedied with a pour of marvel mystery oil into each cylinder's spark plug hole individually and a good soak. I've gotten off track... Unless you had some sort of noticeable loss of power (which you didn't indicate) I would not point immediately think the piston rings not properly sealing. Any damage from a failed exhaust valve's debris being dropped into the cylinder would more than likely generate a more catastrophic failure (seriously scored cylinder walls, more damaged valves or engine innards from chunks of metal being slammed around). Get the PCV system checked before buying a replacement or paying for a new motor!
Can i replace the piston rings without reboring the cylinders?
No need to bore cylinder. From what you're telling me everything should be just fine, hone out the cylinders to remove any carbon, just a quick light honing should do the job. Change your rings, check the end gap on the rings just to be sure that the rings are in specs. If gap is too wide then go to next size up, like .10 oversize and you may have to file in some of the rings to get the gap within specs but that will do a better job.