Using a Grease Gun to Remove a Stuck Piston


| November/December 1984


How many of you gas engine buffs got a hold of one of those real gas engine jewels that has been left out in the weather for thirty or forty years and everything is frozen up? You get it all apart and get down to the piston and can't get it out of the cylinder. Well, there is a way.

First, make sure the valves are well seated and you have a good head gasket. Then make an adapter for spark plug hole or make a plate for igniter hole with a zerk fitting in it. Then go to your local auto parts store and get a bucket of grease. Hand pack the cylinder up to the cylinder head. Install head and tighten. Install your adapter. Get yourself a good grease gun, preferably one with cartridge load. Or, if you have access to an air operated grease gun, that is better yet.

You're in business! Start pumping grease in the zerk. Now, it's going to be very slow. I pushed a piston out of a Fairbanks-Morse with 6 inch bore and put a dial indicator on the connecting rod and the piston moved only 0.005 to 0.006 thousandths each pump of the grease gun.

A friend of mine, Robert Siebert, pushed a piston that a hydraulic press wouldn't move, out of a Witte. All the press would do was bend the connecting rod. To give you an idea of how much pressure can be put on a piston with grease, a grease gun will put out 10,000 PSI x the square inch of diameter.



So, good luck, old engine buffs in distress!














SUBSCRIBE TO GAS ENGINE MAGAZINE TODAY!

Gas Engine Magazine A_M 16Gas Engine Magazine is your best source for tractor and stationary gas engine information.  Subscribe and connect with more than 23,000 other gas engine collectors and build your knowledge, share your passion and search for parts, in the publication written by and for gas engine enthusiasts! Gas Engine Magazine brings you: restoration stories, company histories, and technical advice. Plus our Flywheel Forum column helps answer your engine inquiries!

Be sure to take advantage of the Square Deal Subscription Program.

  • No Missed Issues.

  • No Renewal Notices.

  • No Additional Cost.

The Square Deal Subscription Program is designed as a paperless transaction with automatic renewals at a preferred low rate.   With advanced electronic notification, a 100% satisfaction guarantee and an easy opt-out plan, the Square Deal Subscription Program is the best value, risk free, eco-friendliest way to subscribe.




Facebook YouTube

Classifieds


Copyright 2018, All Rights Reserved
Ogden Publications, Inc., 1503 SW 42nd St., Topeka, Kansas 66609-1265