wrist pin removal/installation tool
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Instructor
Joined: Sep 2006
Posts: 142
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wrist pin removal/installation tool
Last time I needed to put a new set of pistons onto a set of rods my father was able to borrow a wrist pin tool that held the piston and rod in place and then it came with a set of pins of different sizes that could be placed on top of the wrist pin. Then using a hydraulic press, the pin would push the wrist pin out of the piston and rod. The same process was used to push the wrist pin into the new piston/rod.
Problem is his work recently clean out the supply room of out dated tools and that wrist pin tool was one of the tools to be discarded. I would be willing to buy this tools because it makes things so easy but I can't seem to find it ANYWHERE!
Not even on eBay. We got a hold of a set of the pins which a coworker of his was able to snag before it went to the trash but not the major part of the tool which properly held the piston/rod in place.
Does anyone know where I could buy this tool at?!?
I know modern engine are using retainers to hold the pins in now and that is why this tool is no longer needed for modern cars, but this antique tool must be for sell somewhere, Please Help!
Problem is his work recently clean out the supply room of out dated tools and that wrist pin tool was one of the tools to be discarded. I would be willing to buy this tools because it makes things so easy but I can't seem to find it ANYWHERE!
Not even on eBay. We got a hold of a set of the pins which a coworker of his was able to snag before it went to the trash but not the major part of the tool which properly held the piston/rod in place.Does anyone know where I could buy this tool at?!?
I know modern engine are using retainers to hold the pins in now and that is why this tool is no longer needed for modern cars, but this antique tool must be for sell somewhere, Please Help!
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Joined: Oct 2004
Posts: 60
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From: Wilmington DE
I worked in a machine shop (did paperwork not machine work) while I was in college 25 years ago and we had a tool to install wrist pins that heated the pin end of the rod. Once heated the pin pushed right in by hand. I asked the guys in the shop if the heat hurt the rod and they said no. In fact, they said that pressing the pins with a press was harder on the piston. Even though we had the press tools, they always used heat to install new pistons. I know that there were many low budget dirt track guys who did their own at home using a toaster oven. The only trick was making sure the pin was centered. You have a very limited time (10 - 15 sec I believe) to get it right since the rod and pin temps equilibrate very quickley. Once the temps are even, you need the press to get them apart.
Thread Starter
Instructor
Joined: Sep 2006
Posts: 142
Likes: 1
The first time I had to replace pistons the heat method was used but it was very difficult and even if the pins were centered many of the rods/pistons were stiff and didn't move at the wrist pin join very easily. I'm sure it loosed up once ran in the engine for a bit, but it still worries me having the joint so stiff.
