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Allis chalmers wd45 head gasket |
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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Posted: 14 hours 39 minutes ago at 12:56pm |
I am replacing the head gasket on my wd45 and was wondering how difficult it will be.
I'm planning on leaving everything bolted to the head and only replacing the head gasket and valve cover gasket |
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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I'm not planning on replacing the head bolts
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Brian G. NY
Orange Level Joined: 12 Sep 2009 Location: 12194 Points: 2239 |
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I think you will have to remove the rocker arm assembly to gain access to some of the head bolts. Not much of a job at all. You'll have to readjust the valves when you're done anyway.
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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How hard is it to readjust the valves
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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My head gasket has been bad for a while and I'm just now realizing.
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dr p
Orange Level Joined: 24 Feb 2019 Location: new york Points: 1141 |
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I was able to readjust the valves and i am a moron. Just ask my dog
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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What do I have to do to readjust the valves
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dr p
Orange Level Joined: 24 Feb 2019 Location: new york Points: 1141 |
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Its like any any valve adjustment. Clearance guide and a little patience. Instructions in the owners manual
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20358 |
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In all honesty, if you organize the push rods by placing them in a piece of cardboard with 8 holes in it, and place them back EXACTLY where they were before you took it apart, the engine will run fine. This is because the valve lash really doesn't change just by replacing the head gasket. A new gasket or an old gasket are the SAME thickness. This isn't the best scenario, but someone who doesn't know how to adjust valves, this is the best way. The million dollar question would be WHY do you think the head gasket it bad and in need of replacement ??
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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My oil is full of coolant and water
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WF owner
Orange Level Joined: 12 May 2013 Location: Bombay NY Points: 4635 |
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Before you even think about removing the head, remove the oil pan and pressurize the cooling system (radiator). This will allow you to see where the coolant is coming from that is contaminating your oil.
The 201 or 226 engines are not known for head gasket problems. I doubt the head gasket is your problem. It is more likely an O ring on one of the sleeves, a hole in a sleeve or possibly a cracked head.
Edited by WF owner - 10 hours 12 minutes ago at 5:23pm |
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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It runs perfectly fine with the water oil mix.
This tractor sat outside uncovered for 15 years Edited by hunter321 - 10 hours 6 minutes ago at 5:29pm |
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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How would I pressurize the radiator
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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I know the head is not cracked
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20358 |
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No, you don't. Are there any frost plugs under the valve cover that are rusted out or pushed up out of place ?? My money is that or a cracked/split BLOCK.
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WF owner
Orange Level Joined: 12 May 2013 Location: Bombay NY Points: 4635 |
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You should be able to rent a pressurizing kit from a local auto parts store or buy an inexpensive one from Harbor Freight.
If you are sure the head is not cracked, I assume you had it off. Did you use any sealant on the head gasket when reinstalling? Have you retorqued the head?
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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It didn't look like any frost plugs are rusted or out
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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Before we do any major tests we are going to put used engine oil in and put everything back together and add head gasket sealer to see what that does
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20358 |
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" My oil is full of COOLANT and WATER." This is a confusing statement. Water and antifreeze (coolant) actually mix together. They do not stay separated. WATER comes from rain water from the exhaust system not being adequately covered or sealed up when sitting outdoors. COOLANT (anti-freeze) comes from the engines cooling system having an internal leak.....rusted out freeze plugs in the cylinder head, a leaking head gasket (usually not likely) leaking sleeve Orings (again not normally likely) and a cracked block on the bottom, which is very likely. Remove the oil pan. Make sure the cooling system is full and pressure test the cooling system by pumping it up to no more than 10 psi and wait and see where the COOLANT starts dripping from. It may take a day or more to see any drips if it is a slow/small leak.
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hunter321
Silver Level Joined: 11 Jan 2021 Location: 52320 Points: 488 |
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To check for holes we are going to fill the radiator with water and leave the oil plug out and if it drains the radiator we are going to wait and have a shop work on it
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