BogusSVO
03-30-2010, 04:05 PM
How to R&R pistons and Balance Rods
1G 6 Bolt 4G63T
The used rods and pistons, the pistons are being replaced due to cracked and broken ring lands.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4241.jpg
I start off by marking the front of the rod with a center punch
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4242.jpg
Next is to find the proper sized press pieces to press out the wrist pins.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4246.jpg
Due to the pressures used to press out the wrist pin, care must be used, the piston itself can bust sending pieces of it flying that can and will cause injury.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4245.jpg
After the pistons have been pressed off, and the small end inspected for scoring, the rods need to be numbered on both the rod and end cap.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4253.jpg
Now the rod and caps can be split and cleaned, I use a glass beader to remove all the grime
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4255.jpg
Once that is done I spray them down with a good brake cleaner and blow them dry
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4257.jpg
Chase the rod bolt threads with a nut to remove any dust left from the glass beading.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4258.jpg
Now to match the rods back with the caps
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4256.jpg
Install the rod nuts.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4259.jpg
Now the rods are clean and assembled, they can be balanced. Start off by weighing all the small ends
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4260.jpg
The weight will be matched to the lightest one.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4262.jpg
Once the small ends are matched, weigh the overall weight of each rod, and match the overall weight by removing material from the bottom of the rod.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4261.jpg
Now that is done, it is time to match the weights of the pistons WITH OUT the wrist pin installed.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4264.jpg
Then weight match the wrist pins.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4265.jpg
Now that all the weights are with in 1/10 a gram the pistons can be hung back on the connecting rods. The small ends must be heated so the wrist pin can slip through it.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4263.jpg
This must be done very quickly so the wrist pin is fully in place before the small end of the rod contracts around the wrist pin holding it in place.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4266.jpg
1G 6 Bolt 4G63T
The used rods and pistons, the pistons are being replaced due to cracked and broken ring lands.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4241.jpg
I start off by marking the front of the rod with a center punch
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4242.jpg
Next is to find the proper sized press pieces to press out the wrist pins.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4246.jpg
Due to the pressures used to press out the wrist pin, care must be used, the piston itself can bust sending pieces of it flying that can and will cause injury.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4245.jpg
After the pistons have been pressed off, and the small end inspected for scoring, the rods need to be numbered on both the rod and end cap.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4253.jpg
Now the rod and caps can be split and cleaned, I use a glass beader to remove all the grime
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4255.jpg
Once that is done I spray them down with a good brake cleaner and blow them dry
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4257.jpg
Chase the rod bolt threads with a nut to remove any dust left from the glass beading.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4258.jpg
Now to match the rods back with the caps
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4256.jpg
Install the rod nuts.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4259.jpg
Now the rods are clean and assembled, they can be balanced. Start off by weighing all the small ends
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4260.jpg
The weight will be matched to the lightest one.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4262.jpg
Once the small ends are matched, weigh the overall weight of each rod, and match the overall weight by removing material from the bottom of the rod.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4261.jpg
Now that is done, it is time to match the weights of the pistons WITH OUT the wrist pin installed.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4264.jpg
Then weight match the wrist pins.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4265.jpg
Now that all the weights are with in 1/10 a gram the pistons can be hung back on the connecting rods. The small ends must be heated so the wrist pin can slip through it.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4263.jpg
This must be done very quickly so the wrist pin is fully in place before the small end of the rod contracts around the wrist pin holding it in place.
http://i261.photobucket.com/albums/ii49/BogusSVO/4G63T%20rods%20pistons/DSCF4266.jpg