Re: Am I four-stroking? And what to do about it

P D /
This single post is part of a larger thread. Start from the top or view this post in context.

The exhaust pipe has to be totally clear / clean . That's why the use of oven cleaner or even drain cleaner .

Go ahead and pull the cylinder and head , along with the piston . Remove all carbon . That includes any blow by on the piston and it's likely there will be build up in the ring landings . Remove the rings , carefully , and use a pick or small screwdriver to clean the landings .

Clean the cylinder ports of any build up .

Pull it back together and do a compression check . 100 pounds would be the low end and a signal that it needs rings , at least .

Hold the throttle wide open while kicking multiple times to get an accurate reading .

"How does [compression ratio] translate to PSI"

This , from reference.com :

To calculate the pounds per square inch (psi) from the compression ratio, one needs the compression ratio and the atmospheric pressure measurement. Then, the first number in the compression ratio is multiplied by the atmospheric pressure, then divided by the second number in the ratio.

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  Am I four-stroking? And what to do about itTopic by: Drew Cooper Drew Cooper 10/12/19 04:36PM
  Re: Am I four-stroking? And what to do about itRe: pat splat pat splat 10/12/19 04:44PM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/12/19 04:48PM
  Re: Am I four-stroking? And what to do about itRe: P D P D 10/12/19 05:32PM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/12/19 06:02PM
  Re: Am I four-stroking? And what to do about itRe: Daniel '' Daniel '' 10/12/19 11:10PM
  Re: Am I four-stroking? And what to do about itRe: Don Ohio Don Ohio 10/13/19 02:15PM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/13/19 03:19PM
  Re: Am I four-stroking? And what to do about itRe: Don Ohio Don Ohio 10/13/19 08:16PM
  Re: Am I four-stroking? And what to do about itRe: Jeffrey Strichart Jeffrey Strichart 10/13/19 10:03PM
  Re: Am I four-stroking? And what to do about itRe: Don Ohio Don Ohio 10/13/19 11:28PM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/13/19 10:03PM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/13/19 10:16PM
  Re: Am I four-stroking? And what to do about itRe: Jeffrey Strichart Jeffrey Strichart 10/13/19 10:54PM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/14/19 09:46AM
  Re: Am I four-stroking? And what to do about itRe: Jeffrey Strichart Jeffrey Strichart 10/14/19 10:10AM
  Re: Am I four-stroking? And what to do about itRe: P D P D 10/14/19 11:03AM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/14/19 11:27AM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/14/19 11:33AM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/14/19 05:09PM
  Re: Am I four-stroking? And what to do about itRe: P D P D 10/14/19 05:44PM
  Re: Am I four-stroking? And what to do about itRe: Jeffrey Strichart Jeffrey Strichart 10/16/19 01:39AM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/15/19 03:24PM
  Re: Am I four-stroking? And what to do about itRe: Jeffrey Strichart Jeffrey Strichart 10/16/19 01:43AM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/15/19 10:38PM
  Re: Am I four-stroking? And what to do about itRe: P D P D 10/16/19 09:27AM
  Re: Am I four-stroking? And what to do about itRe: Drew Cooper Drew Cooper 10/17/19 05:16PM
  Re: Am I four-stroking? And what to do about itRe: P D P D 10/17/19 06:38PM
  Re: Am I four-stroking? And what to do about itRe: ken gilbert ken gilbert 10/18/19 11:24AM
  Re: Am I four-stroking? And what to do about itRe: Rebel Moby Rebel Moby 10/18/19 03:16PM
  Re: Am I four-stroking? And what to do about itRe: ken gilbert ken gilbert 10/21/19 06:35AM

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account