Author Topic: Stuck Motors (Read 868 times)

Shawn Kuntz · « **on:** February 27, 2007, 09:33:51 AM »

What is the best way to clean up old motors that are gummed up and don't turn over? I have a few old motors...McCoy Redhead, Torpedo 19, and two Johnson 35's. I would really like to clean these up without damaging them.

Bill Little · « **Reply #1 on:** February 27, 2007, 09:41:37 AM »

Hi Shawn,

The most popular methid is using a crock pot, and full strength antifreeze. Soak a day or two and good to go. (IT WILL remove the paint from the McCoys and K&Bs)

My favorite is boiling them in dishwasher detergent (not "dishwashing") for 20-30 minutes. Some say that this discolors the engines. I have not had a problem using "DISHWASHER" *soap* either liquid or powder.

A lot of the time I simply break then down and clean them by hand, if they are not REAL bad.

Whatever you do, check the wrist pin and make sure it isn't stuck when you put it all back together. I use a, pretty much, 50-50 mix of airtool oil and Rislone to reassemble everything.

Bill <><

Bill Gruby · « **Reply #2 on:** February 27, 2007, 10:42:08 AM »

FWIW------In case you missed it in your other thread, according to (AMEE) the green finish on the Johnson is not annodized it is painted, be careful the crock pot may remove it.

"Billy G"

Shawn Kuntz · « **Reply #3 on:** February 27, 2007, 10:51:41 AM »

I definately don't want to remove the green finish. How about boiling this in hot water with dishwasher detergant? Will that take the green off?

Bill Little · « **Reply #4 on:** February 27, 2007, 10:53:18 AM »

Quote from: Shawn on February 27, 2007, 10:51:41 AM

I definately don't want to remove the green finish. How about boiling this in hot water with dishwasher detergant? Will that take the green off?

Pretty sure it will, too. It took the red off my McCoys real nice! Of course, the McCoy Red is an easy fix.

RandySmith · « **Reply #5 on:** February 27, 2007, 10:55:13 AM »

Quote from: Shawn on February 27, 2007, 10:51:41 AM

I definately don't want to remove the green finish. How about boiling this in hot water with dishwasher detergant? Will that take the green off?

Hi Shawn

You may do better to take off the backplate and use WD 40 and or fuel. many times you can free up the stuck motor with this or spray penetrating oil spray in it, This way you dont swell gaskets or remove the paint
And with plain bearing engines you don't have to worry about old ball bearing corrosion.
After you have it clean you can wash it with dish detergent then re oil it

Randy

Jim Kraft · « **Reply #6 on:** February 27, 2007, 05:32:28 PM »

I have had good success by heating the engine with a heat gun, or even a hair dryer, and with a prop installed, just keep working it back and forth untill it frees up. You do want to make sure that rod is not stuck on the wristpin, as most stuck engines seem to have this problem. Generally you can take the back plate off and see that the rod will move back and forth on the wristpin. The heat also will let you take stuff apart that is stuck like heads to cylinders, where asbestos gaskets were used.

Warren Leadbeatter · « **Reply #7 on:** February 27, 2007, 05:57:23 PM »

Same here, Heat gun has worked well for me. I dont have a crock pot and my wife wont let me use hers, so I tried the heat gun on a few old ones and it worked a treat. Just have to be careful not to burn the fingers. ouch! I usually add a bit of glow fuel once it starts to move, and I find it frees up very quickly from there.

Alan Hahn · « **Reply #8 on:** February 28, 2007, 05:28:45 AM »

Warren,
I respect your wife's judgement!

Don't use her crockpot. Once we put the antifreeze in it isn't safe for cooking.

Now I bet you knew this and were just having some fun with us.

Bootlegger · « **Reply #9 on:** March 03, 2007, 07:50:53 AM »

Something else that might help is to " Warm up" the engine using a hair dryer or $ cote gun. I have gotten wrist pins freed up doing this.
Charly Melancon showed me this trick as well as many others...

..........Gil

Russell Shaffer · « **Reply #10 on:** March 03, 2007, 06:32:33 PM »

Used your ideas today on a Veco 45 I got from Clint. It was stuck so I heated it and soaked it in laquer thinner. After it broke loose it was rough, so tore it down and cleaned out the internals. The wrist pin was well and truely stuck, but the heat gun freed it up. All back together and it runs a good 2 stroke with an old Toronado 12-6 that is probably way too much prop. 4 ounces of fuel seems to have smoothed out all of the rough feelings.

Jim Kraft · « **Reply #11 on:** March 03, 2007, 08:39:13 PM »

Glad the heat gun worked for you Russell. You also did the right thing by tearing it down and cleaning it out. Thanks for letting us know.

Russell Shaffer · « **Reply #12 on:** March 03, 2007, 10:43:46 PM »

Wouldn't have done it without the good advice from you guys. Thanks.

Author Topic: Stuck Motors (Read 868 times)

Shawn Kuntz

Stuck Motors

Bill Little

Re: Stuck Motors

Bill Gruby

Re: Stuck Motors

Shawn Kuntz

Re: Stuck Motors

Bill Little

Re: Stuck Motors

RandySmith

Re: Stuck Motors

Jim Kraft

Re: Stuck Motors

Warren Leadbeatter

Re: Stuck Motors

Alan Hahn

Re: Stuck Motors

Bootlegger

Re: Stuck Motors

Russell Shaffer

Re: Stuck Motors

Jim Kraft

Re: Stuck Motors

Russell Shaffer

Re: Stuck Motors