stuck block drain

[DollyDodge]

On my 1949 ton and a half pilot house the block drain is stripped. I have tried multiple ways to get it open or out, and I can get it to move. Anybody have suggestions on how to remove it. it is between the oil filer tube and the distributor. It isn't easy to get a hold of even when I take the oil filler tube off.

[Dodgeb4ya]

Take the whole assembly out with a 9/16" wrench-then put a new one in from a good auto parts store.

Bob

[John-T-53]

I replaced the petcock type drain with a solid brass plug for a similar reason. It never worked good because chunks of scale and rust from the water jacket always got stuck in the petcock's narrow opening.

[DollyDodge]

I should have been more clear. The petcock is destroyed. Someone in the past must have had trouble with it. The little wings are gone, the bolt is completly round. I have tried a couple of things to get a good grip on it to un srew it, but it won't budge. I soaked it with Mystrey Oil for several weeks and I still can't get it to move.

[John-T-53]

In that case, use vise grips or a pipe wrench. To make room, you may need to swing the distributor so its vacuum advance is out of the way. You might also need to heat the old petcock up with a torch and give it some taps with a hammer to get it loose.

[HanksB3B]

I've never faced this problem Potentially couldn't using a vise grip and a lever or tapping crack the block? I mean cast iron is brittle. Wouldn't grinding flush and then progressive size drilling and using an ez-out until whats left can be carefully ice-picked out and cleaned up? I know this would take a lot longer.

Hank

[Merle Coggins]

If it were mine I'd use my bolt extractor sockets. I believe these tools are invaluable for rounded fasteners. They're kind of like the reverse of an EZ-out.

[Dave72dt]

You can grind some new flats on the nut to give a vise grips a better purchase on the nut being careful of the spots you choose to grind so the vise grips have maximum swing. Tapping on it before trying to turn it will help. You can tap pretty hard, just don't pound on it and keep the repetitions down to just a few.

E-Z Outs is a brand name for screw extractors. I don't believe there is such a thing as easy outs for broken bolts. LOL

[DollyDodge]

Thanks for all the input. I tried the pipe wrench and vice grip appoach but couldn't get the thing to move. It is really stuck. If I can find the extractor sockets like you have Merle I might give that a go. I haven't seen those before. If that doesn't work I will try drilling it out. I have seen the stud remover tools too, I might give one of those a go. About all that is left of the pedcock is a roundrd off stud. One of the challenges I have is the truck isn't located near any electricity. I may haul my welder generator to where it is and try grinding some new flat surfaces on it too.

[MBF]

Try a little tougher penetrating oil (Kroil or PB Blaster). Maybe the previous owner used a thread fastener or sealer the last time it was put in. I just took mine out for a block flush while I had the head off-and used neverseize on it when I put it back in. You're right-it is in a damn awkward location but you'll be surprised what comes out of the block once you get it out. Talk about a colon cleanse! Mike

[Jim Gaspard]

I have seen the larger size extractor sets at Harbour and Sears. $20 bucks. This is the same extractor kit I used to remove the frozen door lock set-screw. Tempered steel and they really take a good bite for the torquing. Good luck.

[DollyDodge]

Thanks again

[Fernando Mendes]

Merle, can you show me with pic all this set BOLT EXTRACTOR SOCKETS you have.I never saw none knew one tool like this here.I had this same problem with my draincock block of my GMC truck.Regards.

[Mike@DRH]

The sockets Merle has shown in his post are the most valuable tool when it comes to this type of extraction. We use them all the time, that and reverse twist drill bits if you can't get on it with the socket.

[Young Ed]

Fernando if it helps any I believe the ones we have are Irwin brand. I think its a set of 5.

[DollyDodge]

I found a set of 9 IRwin extractor sockets on amazon for $64. I need to add that to my list of needed tools

[oldmopar]

The bolt sets shown in the photo are also sold by sears so you may want to check their prices also. Have you tried getting at from underneath the truck you may have more room to work. Other thought although I have not tried it there is a freeze spray that is supposed to loosen parts same idea as a torch but maybe safer to use in the space you are working in.

[Merle Coggins]

I believe the set I have came from MAC Tools. The image I posted came from this site. http://www.irwin.com/irwin/consumer/jhtml/browse.jhtml?catId=IrwinCat100511 I just did a search for Bolt Extractor and found this Irwin site. I have heads that Sears/Craftsman has them as well.

Merle

[Jim Gaspard]

This is the Craftsman extraction set for smaller size bolts. It was around $19 as I recall.

[DollyDodge]

I ordered some of the freeze spray (no on locally seemed to have it or have heard of it). I will also order a extractor set. Sears sells several ones other than the 9 piece shown below

[Allen I.]

Those extractors have saved me countless hours of chiseling, banging, drilling and bloody knuckles. Only had to move to the breaker bar once.

Found mine at a garage sale. Set of 9 (one was missing) for $5.

[shannont]

Have you tried dry ice?

[DollyDodge]

Never thought of dry ice either, but it makes sense

[buds truck]

if you take a can of computer keyboard cleaner and spray it upside down it also shoots out a freezing spray.

[DollyDodge]

cool, thanks for the computer spray idea