Freeing a stuck engine

Jump to: navigation, search
(Unsticking an engine in a manual transmission vehicle)
(Unsticking the impossible)
Line 56: Line 56:
 
#After you've done all of the above, let 'er soak and then start over again. She'll loosen!
 
#After you've done all of the above, let 'er soak and then start over again. She'll loosen!
  
Here's a trick I have used on motorcycle engines but am sure would work on any piston engine. After trying the aforementioned soaking to no avail, determine which cylinder is on the compression stroke by removing the spark plugs and using a compression gauge hose or other hose that fits snugly in the spark plug hole. Blow in the hose, if you can't easily then you have the one on compression stroke (if you use a gauge hose make sure it has no schrader valve in it). Break the porcelain out of an old spark plug and thread the metal body for a large grease fitting (1/4 NPT). Insert the plug in the compression cylinder and pump it full using a grease gun filled with cheap light weight grease (like white grease). Grease guns can develop thousands of pounds of pressure with no impact. Once the motor breaks free you can rotate the motor to squeeze most of the grease out of the spark plug hole.
+
===Miscellaneous===
 +
After trying the aforementioned soaking to no avail, determine which cylinder is on the compression stroke by removing the spark plugs and using a compression gauge hose or other hose that fits snugly in the spark plug hole. Blow in the hose, if you can't easily then you have the one on compression stroke (if you use a gauge hose make sure it has no schrader valve in it). Break the porcelain out of an old spark plug and thread the metal body for a large grease fitting (1/4 NPT). Insert the plug in the compression cylinder and pump it full using a grease gun filled with cheap light weight grease (like white grease). Grease guns can develop thousands of pounds of pressure with no impact. Once the motor breaks free you can rotate the motor to squeeze most of the grease out of the spark plug hole.
  
 
==Unsticking an engine in a manual transmission vehicle==
 
==Unsticking an engine in a manual transmission vehicle==

Revision as of 18:53, 23 August 2009

Personal tools
Namespaces
Variants
Actions
Navigation
Categories
Toolbox