Installing a piston into a cylinder
In this video we're going to demonstrate how to install a piston into a cylinder and to do this we usually start off by letting the piston soak in the oil so we just have some clean motor oils been soaking in here and they've got the bearing installed we know which cylinder this is going to go to they have already measured the cylinder measure the piston and matched the two up we made.
Sure that we know which direction the piston goes into the cylinder by the marks on the top of the piston and so to do this we've got our protective caps here these are just a couple pieces of hose that will stick over these bolts so that the rod bolts don't Nick the crankshaft as they go in you turn the crankshaft until this journal for the cylinder is at bottom dead center cut that in place and then we'll grab this oil squirt can squirt.
a little bit of oil onto the cylinder walls here we also have the installation tool that we use to make sure that the Rings get compressed if you look at the specifications it also will probably specify how to place your piston rings on the on the piston so we've got the piston ring gaps setup their outer dated you reach from each other .
They're not over the wrists pan of the skirt they've got the also the oil rings have been termed so the gaps don't line up with each other so they've got the piston ring gaps placed in the right spot we'll bring this over notice the dot on the piston that goes toward the front of the engine we're going to install so in another one this tool has a top and a bottom.
You notice how our clamps there it's offset this should go toward the bottom or toward the block I think it shows you right here on that a narrow set in the bottom so I'll drop it down in there click it around and make sure that we grab all of the piston rings we also want to make sure that none of the gaps of the piston rings fall into the gap here into the gap in the tool to make sure that it's this dog that the direction of fishin is lined up exactly perpendicular to the crankshaft with the handle of a rubber mallet .
We're going to try to make sure that the tool is sitting flat against the block and now we're going to tap assistance there are two ways to do this some people like to try to do it with one blow and I've also learned over and over time that it so it works almost just as well if you just tack or slowly just have to watch make sure that none of the piston rings pop out pop out of the gap between the tool and the block here.
Make sure that we keep that down as much as as possible some cases that the tool gets bent a little bit and if it's band tough just make sure that it's straight so that it sits flat if at any time one of the Rings pops out we're going to stop and start all over we don't just keep pounding and we'll break a ring so now that we've got that started it turned over.
Push the piston up carefully use that use the hammer to tap it now make sure that the bearing is still in place you see that the bearing looks good and this is where we to apply some engine oil or some assembly loop to that bearing once we get that up into that position we can take off the rubber caps so once we've got this in place we get the cap we would plastic age this bearing to make sure that the clearance is within specification before we do anything once we plastic age and determine that everything is alright.
We would place some assembly loop on this bearing and install it with the put the bowls or the nuts on there and torque them specification and once you've torqued one down we should then rotate the crankshaft and make sure that it turns freely go one or two rotations to make sure everything turns freely and smoothly and nothing is binding and if it works well turn the next cylinder to bottom dead center the crankshaft and install the next piston following the same procedure just make sure to plastic age each bearing and journal to make sure the clearances is proper...
Sure that we know which direction the piston goes into the cylinder by the marks on the top of the piston and so to do this we've got our protective caps here these are just a couple pieces of hose that will stick over these bolts so that the rod bolts don't Nick the crankshaft as they go in you turn the crankshaft until this journal for the cylinder is at bottom dead center cut that in place and then we'll grab this oil squirt can squirt.
a little bit of oil onto the cylinder walls here we also have the installation tool that we use to make sure that the Rings get compressed if you look at the specifications it also will probably specify how to place your piston rings on the on the piston so we've got the piston ring gaps setup their outer dated you reach from each other .
They're not over the wrists pan of the skirt they've got the also the oil rings have been termed so the gaps don't line up with each other so they've got the piston ring gaps placed in the right spot we'll bring this over notice the dot on the piston that goes toward the front of the engine we're going to install so in another one this tool has a top and a bottom.
You notice how our clamps there it's offset this should go toward the bottom or toward the block I think it shows you right here on that a narrow set in the bottom so I'll drop it down in there click it around and make sure that we grab all of the piston rings we also want to make sure that none of the gaps of the piston rings fall into the gap here into the gap in the tool to make sure that it's this dog that the direction of fishin is lined up exactly perpendicular to the crankshaft with the handle of a rubber mallet .
We're going to try to make sure that the tool is sitting flat against the block and now we're going to tap assistance there are two ways to do this some people like to try to do it with one blow and I've also learned over and over time that it so it works almost just as well if you just tack or slowly just have to watch make sure that none of the piston rings pop out pop out of the gap between the tool and the block here.
Make sure that we keep that down as much as as possible some cases that the tool gets bent a little bit and if it's band tough just make sure that it's straight so that it sits flat if at any time one of the Rings pops out we're going to stop and start all over we don't just keep pounding and we'll break a ring so now that we've got that started it turned over.
Push the piston up carefully use that use the hammer to tap it now make sure that the bearing is still in place you see that the bearing looks good and this is where we to apply some engine oil or some assembly loop to that bearing once we get that up into that position we can take off the rubber caps so once we've got this in place we get the cap we would plastic age this bearing to make sure that the clearance is within specification before we do anything once we plastic age and determine that everything is alright.
We would place some assembly loop on this bearing and install it with the put the bowls or the nuts on there and torque them specification and once you've torqued one down we should then rotate the crankshaft and make sure that it turns freely go one or two rotations to make sure everything turns freely and smoothly and nothing is binding and if it works well turn the next cylinder to bottom dead center the crankshaft and install the next piston following the same procedure just make sure to plastic age each bearing and journal to make sure the clearances is proper...
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