Re: Now what?

Posted by Loren on May 21, 2003 at 09:52:04 from (64.65.174.118):

In Reply to: Now what? posted by Jason (SC) on May 20, 2003 at 21:23:28:

We use Iron Etch, made by Martin Senyour paints and sold at NAPA. It's a phosphoric acid solution used as a metal prep. for painting, but it works wonders on stuck pistons. I broke loose two pistons on an M that sat for many years without a cap on the exhaust. I also used it on two pistons on my 10-20 and my A. Works every time. I'm going to use it on the stuck W9 that I brought home last month also. When I'm ready to work on the motor, I don't have the patience to wait weeks or months for the pistons to soak.

Just pour about 1/2" of the solution (don't dilute it) on top of the piston and let it sit overnight, then the next day use a block of wood to drive the piston down. You should probably take the rod bearing caps off the other pistons and use a rag to keep the rods clear of the crank, so you're only trying to move one piston at a time. If the rod bearings are disconnected, you can try using a long piece of wood to try driving the pistons upward. Some of them may not be stuck, so you can get them out of your way.

You may want to have someone help by turning the crank or flywheel while you're driving the piston down. I prefer to remove the starter and use a pry bar against the ring gear teeth vs. turning a back wheel, so you're not risking messing up the clutch.

If you use Iron Etch, make sure to rinse everything off afterward, as it is mildly corrosive. It will leave a slightly rough finish on the cylinder where it sat overnight, but it will hone out.

Email me with any questions. I brought an M back from a similar situation three years ago, and it's now the best running tractor we have, so there is hope for it.

Follow Ups:

Post A Followup Name: E-Mail: Subject: Re: Re: Now what? Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]