Anyone have a secret to help me remove stubborn piston pins that just dont want to come out the piston. Dont care if i ruin the piston, i have three new pistons, pins and roller bearings. Any home made tool advice? 
mulderdad
New member
With the circlips out I used a 12 or 13 mm long socket and just pushed them out with the heel of my hand. It did take some force, but they did go.
Bushman
New member
Use a heat gun or small propane torch to warm up the bottom of the pin boss & the pins will slide right out!
Danger Dog
Member
A piston pin puller is fairly inexpensive.
redsnake3
New member
i also use a deep socket. works great just give it a tap with a hammer.
The wrist pin puller tool is about $20, money well spent, if your a uncle cheap, then you can use a small socket one one side, a lrge socket on the other and a c-clamp, it will push the pin right out, just make sure you have a big enuff socket for the pin to go all the way inside of.
YAMAHIZAL700
New member
Did you first remove the C-clips that hold the wrist pins in? If your answer is no them that might be you problem 
In a pinch I have also used a threaded rod or a long bolt to make my own piston pin puller. Sometimes I am just too far from the shop to go get the tools that I need.
The nut needs to fit inside the piston but catch the pin well enough as to not damage it. The other end you will need washers or a sleeve large enough for the pin to go into as you turn the bolt or nut on the other end. Like I say this can work in a pinch, just go easy and check frequently to make sure nothing is binding.
The nut needs to fit inside the piston but catch the pin well enough as to not damage it. The other end you will need washers or a sleeve large enough for the pin to go into as you turn the bolt or nut on the other end. Like I say this can work in a pinch, just go easy and check frequently to make sure nothing is binding.
Oh yeah . . . Be sure to send the circlips flying across the shop when you remove them. You shouldn't reuse them anyway.
If they are really stuck and you don`t have a puller, and decide to use a socket and a hammer, then you should put some pieces of wood on the side of the piston to support it, it will make the pin come out easier.
Remember to put a rag under the piston to avoid getting shit or circlips in the crankhouse.
Remember to put a rag under the piston to avoid getting shit or circlips in the crankhouse.
DONT EVER beat on them with a hammer to get them out, you will ruin the thrust surface off the sides of the bottom of the connecting rod!!!
You are right mrviper700 but if you do it carefully it`s not a problem.. I normally use a thing that fits inside the piston pin but doesn`t go through it, and at the same time has a smaller diameter then the pin, that way you can`t hurt anything.. .
But be careful.. .
But be careful.. .