De guming an engine
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Topic: De guming an engine
Posted By: Wil M (NEIA)
Subject: De guming an engine
Date Posted: 01 Jan 2011 at 6:34pm
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What is the best method or solvent for de guming values, springs, etc. Tearing into a motor that is "stuck" but not with rust but an amber colored glue like substance. I have had the pistons soaking in the cylinder walls for 3 months now with first tranny fluid and then brake fluid and it won't even touch the glue holding the pistons in place on the cylinder walls. The valves, springs and head are just a gummy glued mess. I took one valve to the wire wheel on my bench grinder and managed to get most of the mess off but still not the best.   Wil
------------- "Yet there are soulless men whose hand and brain tear down what time will never give again." Anderson M Scruggs |
Replies:
Posted By: Brian Jasper co. Ia
Date Posted: 01 Jan 2011 at 6:59pm
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Dip type carb cleaner. Gunk brand Hydro Seal is good. Comes in a 5 gal bucket. ------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: CTuckerNWIL
Date Posted: 01 Jan 2011 at 7:37pm
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You might try some oven cleaner. That's some nasty looking stuff there.
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Wil M (NEIA)
Date Posted: 01 Jan 2011 at 8:15pm
I never thought of oven cleaner. I think the JB 80 and Kroil I have been spraying on everything to just get stuff loose made the gummy ness even worse.
------------- "Yet there are soulless men whose hand and brain tear down what time will never give again." Anderson M Scruggs |
CTuckerNWIL wrote:Posted By: LoggerLee
Date Posted: 01 Jan 2011 at 9:33pm
| Cant hot tank it? |
Posted By: Coke-in-MN
Date Posted: 01 Jan 2011 at 10:02pm
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A hot caustic soda based cleaner will cut that off any cast or metal parts . EXCEPT . DO NOT USE ON Aluminum or base Matal parts as it will disolve them.
Might be time to thake them to moror rebuilder or machine shop that has a hot tank and get them cleaned.
Aceatone or MEK might also cut it but fumes need to be protected against breathing . ------------- Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something. "Challenges are what make life interesting; overcoming them is what makes life meaningful." |
Posted By: Dave H
Date Posted: 02 Jan 2011 at 6:20am
| If you are an old pfart like me and time is not of the essence and you have an electrolysis tank sitting rond, I would give that a whirl. For that kind of mes Iwould try spiking the vat with a little lye also. |
Posted By: CTuckerNWIL
Date Posted: 02 Jan 2011 at 6:43am
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If the pistons are cast, remove everything you can from the block and try electrolysis but I don't think it would do the pistons any good if they are aluminum.
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: alan-nj
Date Posted: 02 Jan 2011 at 8:17am
| my favorite cleaner is kerosene. |
Posted By: GlenninPA
Date Posted: 02 Jan 2011 at 4:12pm
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Try turpentine. The real stuff, made from pine. Not fake, check the can to be sure.
It really worked for me in a similar situation.
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Posted By: steve(ill)
Date Posted: 02 Jan 2011 at 4:20pm
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the cheapest stuff is gasoline.. many will say "NO", but get 2 gallons in a bucket and soak the vavles and spring in that overnight. use a tooth brush the next day and then wipe off whats left.. I normally wire brush afterwards for a bright finish.. Been doing that for 40 years. ------------- Like them all, but love the "B"s. |
Posted By: BrianC,Ont
Date Posted: 02 Jan 2011 at 5:38pm
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I use the 5 gallon pail of carb cleaner, and oven cleaner. I would take the head to a machine shop and let them clean it. By the look of the valves and seats they will need to be cut anyways. The pail of carb cleaner is expensive if you are not going to use it very much. It will also eat thru the metal bucket after a while. I would try oven cleaner on the bores. Are you sure that it is the glue like substance that has it stuck. ------------- 35WC on steel, B with belly mower, D17 puller, D15 Series II puller, D15 Series II with loader, 608 Lawn Tractor |
Posted By: Wil M (NEIA)
Date Posted: 02 Jan 2011 at 9:13pm
Thanks
Wil ------------- "Yet there are soulless men whose hand and brain tear down what time will never give again." Anderson M Scruggs |
Posted By: Reeseholler
Date Posted: 03 Jan 2011 at 1:23pm
| I know it's a little crude but I use dawn dish detergent. I found it works good for grease, gum, oil with dirt. Might work for the valves but wouldn't want to try it on the head |