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Minneapolis Moline Tractors Discussion Forum
Show Parts for Model:

Head Gasket Sealer

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cleddy

06-27-2013 08:35:06




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I'm ready to put the heads on the M602 engine. Heads are well used and not in the best shape but was running fine before. What head gasket sealers are MM people using???? Choices are Permatex Super "300" Form-A-Gasket sealant or Permatex Copper Spray a gasket Hi-Temp sealant.

I just got a 250 lp torque wrench so can get the studs tightend to 170-175 Ft. I do not want any leaks of any kind especially antifreeze.
cleddy

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MJamison

07-10-2013 12:33:35




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 Re: Head Gasket Sealer in reply to cleddy, 06-27-2013 08:35:06  
Aluminum paint or spray on copper coat. I can't tell you how many times I've taken heads off and found that previous builders used permatex. Remember that what permatex you might see ozzing from between the block and head, there is at least that much more inside, plugging up water and oil passageways causing premature death....



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shinnery

07-03-2013 16:44:53




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 Re: Head Gasket Sealer in reply to cleddy, 06-27-2013 08:35:06  
I have 4 LP tractors, 2-M5s & 2-M602s, and all 4 have the 4210 heads so they are fairly common. If you are running gasoline you might need to run premium or at least better than the bottom level gas in it for the higher compression.

Bryce



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cleddy

07-04-2013 04:54:30




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 Re: Head Gasket Sealer in reply to shinnery, 07-03-2013 16:44:53  
That good to know. I think I bought the last 2 old-new stock in the country and paid way more then the tractor was probably worth so when I get it running she get what ever it needs. Could say I have a sentimental attachment to this tractor.
At least I will not have to worry about cracks now and I am going to do everything possible to prevent overheating this time around.
cleddy



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shinnery

07-02-2013 22:38:24




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 Re: Head Gasket Sealer in reply to cleddy, 06-27-2013 08:35:06  
Sorta driving distance is Stamm Tractors in Washington, KS. Might be a good place to start. My computer is not back all the way or I would have their email.

Bryce



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cleddy

07-03-2013 04:00:44




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 Re: Head Gasket Sealer in reply to shinnery, 07-02-2013 22:38:24  
Thanks- I am familiar with Stamm tractor having bought some seat cushions through them before. They have them on listed on the computer at a reasonable price and I have a e-mail in to them but he travels a lot so maybe they can help.

A place I know has some new-old stock 10A4010 heads which they say will work but increases Compression and some modification and costs way more than I wanted. May have to go that way yet.
Would that be a good or bad upgrade?
cleddy

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MMDEL

07-02-2013 10:27:52




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 Re: Head Gasket Sealer in reply to cleddy, 06-27-2013 08:35:06  
I used to use alumminum paint, and it worked well before thay took the lead out of it. Since then I use spray copper coat.

MMDEL
This post was edited by MMDEL at 10:29:16 07/02/13.



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cleddy

07-02-2013 11:14:20




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 Re: Head Gasket Sealer in reply to MMDEL, 07-02-2013 10:27:52  
Thanks for all the replys. Now I have to look for different heads because mine have cracks.Anybody know who would have a pair of 10A4209 heads within driving distance of Omaha NE.
Cleddy



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M.Genrich

06-27-2013 22:32:44




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 Re: Head Gasket Sealer in reply to cleddy, 06-27-2013 08:35:06  
Aluminum paint. 20 years in a case IH dealership and 5 years on my own and never had a leak.



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Alan K

06-27-2013 15:56:49




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 Re: Head Gasket Sealer in reply to cleddy, 06-27-2013 08:35:06  
Ive always used Copper coat as well and have had good luck with it. Did you happen to have the surface of the heads and or blocks checked for warpage? That might be a good idea before assembly. I have an M5 Im doing at the moment.



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cleddy

07-01-2013 05:58:38




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 Re: Head Gasket Sealer in reply to Alan K, 06-27-2013 15:56:49  
Thanks for all the replies. I used the copper sealant and a generous amount that as much as sealant can help I have it. I did check the heads on a flat Surface Plate with feeler gages and a straight edge and thought they were pretty flat. (within .005 but maybe not perfect within .002 as the machine shop recommended)I did not feel they were leaking before so think I'll be fine with what I have but may need an upgrade sometime with better parts. Generally this tractor had a hard life and even the oil pan had a crack toward the front from overloading and abuse.

To the fellow that uses Aluminum paint my Dad must of used aluminum paint last time the tractor was worked on in 1986 as there was paint on the engine and gaskets. It seemed to be adequate because no leaks and a little difficult to break heads loose. I'm pressure testing with low water pressure today and hope to paint engine and put back on the tractor on the 4th holiday weekend.
Cleddy

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Larry Mi

06-27-2013 14:53:35




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 Re: Head Gasket Sealer in reply to cleddy, 06-27-2013 08:35:06  
I agree with the rest nothing but the copper spray. I have dad very good luck with it.



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Joe Pro

06-27-2013 14:12:25




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 Re: Head Gasket Sealer in reply to cleddy, 06-27-2013 08:35:06  
I've been using copper coat spray on all copper head gaskets lately with no problems.



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Dieselbear

06-27-2013 11:30:55




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 Re: Head Gasket Sealer in reply to cleddy, 06-27-2013 08:35:06  
I use copper spray, but if your worried about them use HY tach, but it will be hard to get it apart later



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