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#1 |
Senior Member
Join Date: May 2010
Location: Spokane, WA
Posts: 2,976
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I thought I could get em, but man they are not budging! I am being very careful however as not to damage the heads. I got this engine a week ago, been squirting penetrating oil on each stud every day since! I have tried cranking it over with the plugs in, made some T handle pullers using spark plugs to thread into the holes, tapped and tapped on em all over...they will just not budge. Anyone else run into some suborn ones? How did you get em off without damaging anything?
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#2 |
Senior Member
Join Date: May 2010
Location: Florence Ma.
Posts: 2,404
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Have you tried the Rope in the cylinder trick ?
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#3 |
Senior Member
Join Date: Jan 2012
Location: Roswell NM
Posts: 162
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I used a heat gun on the studs
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#4 |
Senior Member
Join Date: Sep 2010
Location: Independence, VA
Posts: 423
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Looks like you have everything there you need to start it up,,,,
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#5 |
Senior Member
Join Date: Apr 2011
Location: Oregon
Posts: 220
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I made a head puller using a steel plate with holes to match the plug locations.
Then remove the innards from some old plugs and tap them. Screw all-thread into the tapped plugs. With the plugs in the head, place the steel plate down on the studs with the all-thread sticking through the holes in the plate. Put nuts onto the all-thread and as you tighten the nuts the head will lift up. Once the top of the head reaches the top of the studs remove the steel plate and switch to some wooden wedges to get the head the rest of the way off. My original design has 4 holes in the plate because I thought that I might need the lifting power of all 4 plugs. But the two outside ones were more than enough to do the job. I also used channel rather than a flat steel plate because it would be more rigid. That was also overkill. A 1/4" steel plate should be strong enough. I could take some pictures if you need more info. Tom |
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#6 | |
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Join Date: May 2010
Location: NJ
Posts: 6,280
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Quote:
There was a thread about this a few weeks ago that may be worth while checking out. |
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#7 |
Senior Member
Join Date: May 2010
Location: West Michigan
Posts: 1,218
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47COE-
I have thought about doing something like what you have done but isn't there a danger of stripping the spark plug threads especially with very stuck aluminum heads? Pictures are always nice! Thanks Tom |
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#8 | |
Senior Member
Join Date: Apr 2011
Location: Oregon
Posts: 220
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The failsafe is the threads tapped into the plug to receive the all-thread rod. The inside diameter of the plug is a bit big for the nearest size tap. So the threads aren't full depth. Even if the head was totally welded to the block and you applied gorilla force, the all-thread would pull out of the plug long before the plug threads would strip out of the head. I'll see about taking photos tomorrow. Tom |
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#9 | |
Senior Member
Join Date: May 2010
Location: Northeast Pennsylvania
Posts: 1,582
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I actually had a spark plug explode out of an aluminum head, fly right by my head, dent the underside of my hood, and continue across the garage. |
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#10 |
Senior Member
Join Date: May 2010
Location: Kokomo, Indiana
Posts: 1,731
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First, locate cylinders with both valves closed. Then, make up a fitting with an old spark plug and a zerk fitting (actually, you'd need several). Pump the cylinder full of grease and then keep pumping. The hydraulic pressure will raise the head enough to get wedges under it. I haven't tried this myself but I've talked to a couple of people who have used it satisfactorily. I like 47COE's puller idea.
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#11 |
Senior Member
Join Date: May 2010
Location: Northeast Pennsylvania
Posts: 1,582
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I'd get a stud-puller and remove as many studs as possible.
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#12 |
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Join Date: May 2010
Location: middle of Iowa
Posts: 664
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#13 |
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Join Date: May 2010
Posts: 1,836
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This would be the worse way to use a stud puller,if you could even get a good grip on about 1/2"-5/8" area that is threaded you are pulling studs from the very top. This would enable entire stud out of block to twist and break,you need to use stud puller as low to block as you can get.
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"Never complain,never explain"... Henry Ford II |
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#14 |
Senior Member
Join Date: Jul 2011
Location: SF Bay Area
Posts: 6,688
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Chris, check the comments on the "penetrating Oil" thread. Looks like a 50/50 home brew of ATF fluid and Acetone gets better reviews than any of the commercial products.
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Alan |
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#15 |
Senior Member
Join Date: May 2010
Location: Solihull, England.
Posts: 8,804
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I've never seen one, but I have heard of very thin hole saw type tools that you use to cut down through the corrosion. They would probably take out some head material too. Commonly used on older Brit stuff.
Would it be worth sacrificing the studs? Weld nuts on them, remove as many as will come out and then The heads should come off a lot easier. Then you would have a bunch of broken studs to deal with, but that may be the case no matter how you do it. Mart. |
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#16 |
Senior Member
Join Date: Jun 2011
Location: Oregon
Posts: 315
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I have used Tom's puller and it is easy. I had heads that were really stuck on my 36 and they came off without any force on the nuts that do the pulling. That is the nuts that are on the all thread that goes through the old plugs. The secret seems to be the force is in just the right place and in the right direction. It works.
Bill |
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#17 |
Senior Member
Join Date: Aug 2012
Location: Nebraska
Posts: 603
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How about throwing air pressure to a cylinder with both valves closed? Piston will go to BDC but you'll put 125 psi air to the cylinder?
Just need a modified plug to accept an air line quick connect. If you think 125 psi is to much you could regulate it to less and increase as needed. |
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#18 |
Senior Member
Join Date: May 2010
Location: Florida and Penna.
Posts: 4,471
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I have several thin hole saws that were made for this purpose. There is a holder with a "T" handle or can be usd with an electric drill. It is 7/16" ID and 1/2" OD. This leaves a .032 wall thickness.You have to be careful or they can break. If you could find a 7/16 iD deep hole saw the OD could be turned or if to hard ground to 1/2. This removes them and very little material is removed it's all corrosive junk. Some of these heads are so porous they pull apart or break if the original Ford or KRW chisel type head puller is used. These looked like ice tongs. G.M.
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#19 |
Senior Member
Join Date: May 2010
Location: so cal, placerville, vegas
Posts: 1,396
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Lots of choices here. I never had much luck with the little hole-saws - they just seem to gum up, and they also tend to enlarge the hole in the head, which I would prefer not doing. My preference is the arc-welded-on nut, then hammer them with a substantial air-driven impact wrench. Work the impact on 'forward', and 'reverse', on the really stuck ones. (Don't try to muscle them off with a wrench or breaker-bar. That's how you end up with broken studs.) The studs are sacrificed, but the heads are not damaged.
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#20 |
Senior Member
Join Date: May 2010
Posts: 2,180
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scrapiron>>>Looks like you have everything there you need to start it up>>>
x2. Don't rev it up too much though. 8^) Jack E/NJ |
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