If you’re working on an engine and need to remove the wrist pins, there’s no need for a press. With the right tools, you can easily remove them without any damage to the pistons or other engine parts. Here’s a step-by-step guide on how to do it.
- Remove the piston from the cylinder using a piston ring compressor
- Insert a small drift punch through one of the wrist pinholes in the piston and drive out the wrist pin
- Remove the other wrist pin in the same manner
- Inspect the connecting rods for wear and damage, and replace if necessary
Homemade Wrist Pin Removal Tool
A homemade wrist pin removal tool is a great way to save money and time when removing the wrist pins from your engine. This type of tool is very simple to make and only requires a few tools that you likely already have in your garage or workshop. With this tool, you can easily remove the wrist pins from your engine without having to take it apart.
The first step is to gather the supplies that you will need. You will need a drill, a tap set, a die set, and some threadlocker compound. You will also need a piece of scrap metal that is about 3/4 inch thick and about 6 inches long.
The last thing you will need is a hammer. Next, use the drill to create two holes in the scrap metal, one at each end. These holes should be slightly smaller than the tap set that you are using.
Once the holes are drilled, use the tap set to thread them. Make sure that you apply some threadlocker compound to the threads before beginning so that they do not come loose during use. Now it’s time to assemble your tool.
Place the threaded rod through one of the holes in the scrap metal so that it sticks out on both sides. Place the die onto one end of the rod and screw it on tightly by hand. Repeat this process on the other side with another piece of scrap metal.
Finally, place the washer over each end ofthe rod and secure it with a nut (again, making sure to apply threadlocker). Your tool is now ready for use! To remove a wrist pin from your engine block, simply place one end ofthetool againstthepinand strikeitwiththehammeruntilitpopsoutofthehole(youmightneedtouseaslightlylargerpieceofmetalifyourwristpinispressedinreallytight).
How Do You Get a Wrist Pin Out?
Assuming you are referring to a small end connecting rod bearing and not a piston pin:
The first step is to remove the circlip that holds the wrist pin in place. Next, use a drift or punch to drive the wrist pin out from the small end of the connecting rod.
Be sure to support the other side of the connecting rod so it does not become damaged.
How Do You Put on a Wrist Pin Without a Press?
If you don’t have a press, you can put on a wrist pin by using two pieces of wood and some bolts. Place the wood on either side of the connecting rod, and then bolt them together. This will compress the rod so that you can slip the wrist pin in place.
Make sure that the bolts are tight so that the rod doesn’t move while you’re doing this.
How Do I Remove Pin from Piston?
Assuming you are referring to a piston pin in an internal combustion engine:
The first step is to remove the cotter key or retaining ring that secures the pin in place. Once this is done, the pin can be gently tapped out with a hammer and punch.
Be careful not to damage the piston or connecting rod while doing this. Once the old pin is out, clean up any debris and inspect the surfaces for wear. If everything looks good, you can install the new piston pin.
To do this, start by lightly lubricating the new pin with oil. Then align it with the hole in the connecting rod and tap it into place using a hammer and punch (again, being careful not to damage anything). Finally, secure the new pin in place with a retaining ring or cotter key.
What Tools are Needed to Remove Press Fit Piston Pin?
Assuming you are removing a press fit piston pin from an engine:
You will need two tools to remove a press fit piston pin- a hammer and a drift punch. The size of the drift punch should be slightly smaller than the inside diameter of the piston pin bore.
Place the tip of the drift punch on the end of the piston pin that is protruding from the connecting rod. Gently tap on the drift punch with the hammer until the piston pin pops out of its bore. You may need to use a little bit of force, but be careful not to damage either the connecting rod or bore in the process.
Removing piston wrist pin without a press.
If you’re planning on doing any work on your engine, it’s likely you’ll need to remove the wrist pins at some point. While this may seem like a daunting task, it’s actually relatively simple to do without a press.
To remove the wrist pin, start by heating up the area around it with a torch.
This will help loosen up the metal and make it easier to remove. Next, use a punch or other sharp object to drive the pin out from the bottom. Once it’s started moving, you should be able to pull it out by hand.
If you don’t have access to a torch, you can also try soaking the area in penetrating oil overnight. This will help break down any rust or corrosion that may be holding the pin in place. Whichever method you use, be sure to clean off any debris before reinstalling the new pin.