What does it mean to float pistons to rods? - Team Camaro Tech
Engine General Engine Discussion.

 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old Apr 10th, 08, 09:24 PM Thread Starter
Tech Team
Drew
 
Join Date: Dec 2007
Location: Chicago
Posts: 40
What does it mean to float pistons to rods?

The title pretty much says it all. I know it is probably a stupid question but what does it mean when guys say that their pistons and rods have been floated?
Drew1485 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old Apr 10th, 08, 10:20 PM
Senior Tech
 
Join Date: Dec 2007
Location: arkansas
Posts: 342
Re: What does it mean to float pistons to rods?

A floating piston is one that is bolted to the rod, or there is pressed in pistons. I guess it could also mean it is broke in the cylinder and floating around in there if someone is refering to a damaged engine

68 camaro, 350 vortec heads, rpm air gap, lunati voodoo cam, coated headers, th350, 100 shot, 3.73, eaton posi.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
justincat is offline  
post #3 of 5 (permalink) Old Apr 10th, 08, 10:31 PM
Senior Tech
Keith
 
Join Date: Jan 2006
Location: Douglasville, GA
Posts: 141
Re: What does it mean to float pistons to rods?

The round pin that connects the connecting rod to the piston can be hooked into the rod in basically two ways. 1. The most popular way is to press the pin into the hole in the rod using a press. The pin is locked into the rod by the tight fit and does not turn in the rod. The pin slides into the holes in the piston and allows the piston to rock back and forth and slide on the pin. 2. The hole in the connecting rod is drilled bigger and a bushing is pressed into the rod. The hole in the bushing allows the pin to turn because the bushing hole is a little bigger than the pin. The pin slides in the piston the same way as pressed pins. Way number 2 is called a "floating" pin system because the pin can move in the rod and the piston. The pin must be kept from sliding out of the piston by clips so it won't rub the cylinder wall.

Keith
Kamcoman is offline  
 
post #4 of 5 (permalink) Old Apr 10th, 08, 10:38 PM
Senior Tech
Jerry
 
Join Date: Apr 2007
Location: NW Colorado
Posts: 872
Re: What does it mean to float pistons to rods?

It's pretty simple. "Normal" piston pins are pressed through the piston into the small end of the rod and can't rotate. A "floated" pin can spin freely in the small end of the rod. Since the pin is now free to move side to side, the pin must be retained in piston to keep it from hitting the cylinder walls, for example, with snap rings.

69 Z11 03D Van Nuys
82 Z28 Gordon Johncock's Pace Car
97 30th Z28 6 speed vert 1 of 175


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
69 z11 is offline  
post #5 of 5 (permalink) Old Apr 11th, 08, 05:29 AM Thread Starter
Tech Team
Drew
 
Join Date: Dec 2007
Location: Chicago
Posts: 40
Re: What does it mean to float pistons to rods?

Thanks for the info guys!
Drew1485 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome