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AllisWCLaRock 
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 Topic: Allis WC head gasket change tips and tricks
Posted: 19 Mar 2018 at 10:13am |
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I'm going to be changing my head gasket on my 47 wc and was looking for some tips and tricks like how to torque head what pattern what to use for cleaning etc... Any help is appreciated thanks ahead of time!
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Gerald J.
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Posted: 19 Mar 2018 at 1:14pm |
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AllisWCLaRock
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Posted: 19 Mar 2018 at 2:53pm |
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Do you have the regular manual that would have tourque specs?
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LeonR2013
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Posted: 19 Mar 2018 at 3:11pm |
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Clean. Clean. And then clean again.
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Allis dave
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Posted: 20 Mar 2018 at 7:24am |
Be really careful not to drop junk down in the cylinder when cleaning. You'll never get it back out... He's a topic a wrote last year when I rebuilt my WD45 last year. There a couple sections about head rebuilds and install. Sorry the pictures got screwed up by photobucket.
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Allis dave
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Posted: 20 Mar 2018 at 7:26am |
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DrAllis
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Posted: 20 Mar 2018 at 8:57am |
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Clean all block bolt holes with a thread tap and compressed air. Use light grease or oil on head bolt threads. If you don't paint the head gasket with something, it will probably seep water and oil. I prefer to use a Hylomar type sealer applied with my finger around all water holes, push rod holes, and all the way around the outer edge of the gasket on BOTH sides. Retorque after some running time when stone cold. All tappets at .015" when cold.
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Fred in Pa
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Posted: 20 Mar 2018 at 11:45am |
  Been using this for years . You can buy it in small tubes ,
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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.
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Allis dave
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Posted: 20 Mar 2018 at 11:54am |
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Interesting, I've never seen that before. Would it be similar to #2 permatex non hardening sealer?
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Fred in Pa
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Posted: 20 Mar 2018 at 11:56am |
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Dave , Not even close
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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.
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Don(MO)
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Posted: 20 Mar 2018 at 12:05pm |
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3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.
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Don(MO)
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Posted: 20 Mar 2018 at 12:14pm |
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3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.
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AllisWCLaRock
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Posted: 21 Mar 2018 at 6:39am |
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So should I put that around all the holes head and block or on both sides of the head gasket?
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DrAllis
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Posted: 21 Mar 2018 at 7:06am |
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Either way works. Just make sure you spread it thin with no globs.
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AllisWCLaRock
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Posted: 22 Mar 2018 at 8:19pm |
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Dose any one have a diagram of how to tourque the studs and specs
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Gerald J.
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Posted: 22 Mar 2018 at 8:44pm |
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There should be a diagram and torque specifications in one of the WC shop manual sections I posted above. I haven't memorized them to know which section covers engine assembly.
Gerald J.
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WF owner
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Posted: 22 Mar 2018 at 10:05pm |
The Hylomar Universal Blue is available through Amazon. I tried to post the link, but couldn't get the link to work.
Edited by WF owner - 22 Mar 2018 at 10:09pm
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GreenMule
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Posted: 22 Mar 2018 at 11:24pm |
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you can get it on e-bay also, going to try it
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Fred in Pa
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Posted: 23 Mar 2018 at 6:33am |
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Best to buy it on e-bay ,I get mine from a local Speed Shop
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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.
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AllisWCLaRock
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Posted: 23 Mar 2018 at 8:05am |
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It doesn't show how to reinstall the head in there dose any one know ??
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TedBuiskerN.IL.
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Posted: 23 Mar 2018 at 9:34am |
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Be aware that using any kind of sealer on some head gaskets, Fel-Pro comes to mind,voids the warrantee.
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Most problems can be solved with the proper application of high explosives.
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Allis dave
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Posted: 23 Mar 2018 at 9:49am |
http://www.allischalmers.com/forum/wd45-rebuild-progress_topic126761_page2.html Here's my thread on my WD45 head installation. Pretty similar. Torque the 1/2 bolts and studs to 90ft lb. The 3/8 studs get 25lbs per the Allis service manual. From Memory only, tighten the 1/2 bolts and studs starting in the center and working out. The 3/8's studs get tightened last. Center stud first then the 2 outers. For more detailed info about re-torqueing or may being torqueing in steps, read the above thread. If you have more questions let us know.
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Gerald J.
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Posted: 23 Mar 2018 at 10:14am |
That shop manual sure skips cylinder head installation. As does the op and maintenance manual available at: http://grandpas-tractor-site.s3.amazonaws.com/manuals/ac/WC-WF-RC/wc-operators-manual-complete.pdf?javer=1803231002So I guess Dave's extraction from WD manual can be applied. Gerald J.
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AllisWCLaRock
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Posted: 24 Mar 2018 at 10:42am |
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So I did the head gasket put it all together and it runs on 3 cylinders I checked spark it has super strong spark spark plugs is good I'm lost on what to do any suggestions
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DrAllis
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Posted: 24 Mar 2018 at 10:49am |
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You start by making sure the plug wires are on correctly. Firing order is 1-2-4-3. Then, you run a simple compression test to verify good and equal compression pressures. Do this with the throttle WIDE OPEN and a battery charger on the battery. Make each cylinder hit at least 6 times or more.
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AllisWCLaRock
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Posted: 24 Mar 2018 at 10:56am |
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I'm pretty positive it's compression but what would cause it to have little compression with a new head gasket?
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WF owner
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Posted: 24 Mar 2018 at 10:58am |
Do you have a valve that is stuck open?
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AllisWCLaRock
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Posted: 24 Mar 2018 at 11:00am |
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No
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WF owner
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Posted: 24 Mar 2018 at 11:07am |
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Maybe I should have said, do you have a valve that is not closing completely?
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Gerald J.
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Posted: 24 Mar 2018 at 11:09am |
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A valve that hasn't been ground to the seat can leak even if it appears to close. Could be caused by a weak or short spring too. A cylinder can be low on compression from a broken or badly worn piston ring. Do the compression test and if one tests low, squirt some crankcase oil into the cylinder and see if that improves the compression. Oil usually does improve poor compression if the problem is piston rings but not if the problem is a valve not sealing.
Gerald J.
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