Old Tractor Restoration Tip #2: Welch Plug Installation and Removal
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- čas přidán 27. 08. 2024
- Just a short video showing how to install and remove the Welch (or Hubbard) style expansion plugs that seal the core plug openings in older engine water jackets.
Finally, a video produced by a professional that knows what he's doing.
Thank you! I'm working on a '47 Chevrolet and a 2 inch plug of this type was in the end of the block below the water pump. I think the original was installed backwards, and I installed the new one that way. Dorman part number was 550-028, and I incorrectly thought the part number being on the outside was verification it was installed correctly. I searched the Dorman website - they have other instructional videos - but none on these plugs. You are a lifesaver, Sir!
Thank You for this awesome video! I am working on a Moline right now and was worried the bores were worn when the new plugs just dropped in the hole, you instantly cleared up my confusion,
Great video. I’m replacing the Welch plugs on my ‘26 Model T. A trick the old timers used to use was to press an Indian head nickel with a socket and ball peen hammer, so that it becomes bowl-shaped. You then use the nickel as your Welch plug. My bores had a lot of crud in them, but with a Dremel and a tiny sanding drum I finally cleaned them down to the shoulder. The casting holes on your engine block look exactly like the ones on my Ford. Thanks for posting.
Thanks for the video. Still no other videos on youtube, thanks
Helpful information. Thank you. I need to replace those plugs on my 8N tractor.
thank you sir for this video I just bought a 1940 Cadillac and I believe I need this same style freeze plug
Squatch253, Thank you for this video!! I am doing this very thing on the cylinder head for my Oliver 77, and not knowing what I was doing, this was a huge help!!! Thanks!!!
Thanks that was the best and only one on CZcams that explains this type of plug!
Thankyou I'm replacing a rear cam plug on an old willys jeep engine this helped alot
Thanks for the video and explanation of its installation. Very well done!
The freeze plug manufacturers recommend that you do not use any sealant when installing the plugs. Make sure the holes are clean and rust free. A slight amount of light weight oil can be applied to the hole and the plug to make installation easier.
Where I was raised that was common knowledge. Times have changed.
Great, informative demo. My '69 Mini Cooper uses these, and just happened to spit one out, so I'm in process of replacing it now.
Thanks!
NIce Job. I'm working on an 8N Ford engine and need to remove the core plugs and put the block into the parts washer. Haven't seen, installed, removed this type of plug in MANY years. Thanks for the visual refresher course on how it's done.
Thanks for this video. I'm working on a old Farmall Super-A governor rebuild and have been skull-braining how to get the plug out. Thought drilling a hole and yanking it out was the hard way.
I appreciate this very much. It's good to have some insight and not just blindly bashing your way into trouble. Cheers "medium" ears 😂
Thanks, Pal! That was another good one. I'm familiar with the Welch plugs somewhat because I had a couple of Rabbit diesels and installed block heaters in them. More than this my pal that has a small engine repair business, the Saw Surgeon as I call him, uses them a LOT in 2-cycle carb rebuilds but uses fingernail polish to seal them off. For removal he drills a small hole in them and runs in a screw a little ways and pops it out with pliers or some such. Those work just fine and did for years. Thanks for another good one!
Yes! thanks for that video. im rebuilding a Super A tractor engine and need to replace at least 2 of those plugs. Great info. now I just have to find a source for the plugs. Welch plugs. just subscribed to your channel. ill be watching Thanks again
Very helpful, thanks.
Thanks for a great video, very helpful, I thought incorrectly the plug went in the other way and have been struggling to get one to fit!
Thank you for the video, helped me a lot!😊👍
short and sweet...thanks
Squatch, thank you, was looking for a how to on these welch plugs i'm in the process of restoring a Mccormick deering 15-30, these plugs go on top of the steering knuckles, i subbed a while ago and low and behold your video came up on this topic, keep up the good work!
Excellent instructions.!!
I had a frost plug heater pop out of the block on an 82 Olds Omega 2.5L Pontiac engine while my wife was driving. It got hot and locked the engine up. She caught a ride home from someone and we went to pick it up. I tried bump starting it and it broke loose after it cooled down. I removed the engine block heater and noticed the old frost plug was still in the water jacket. I was able to hook it and pry it out of the block through the frost plug hole. I noticed it wasn't distorted much so I put some permatex aviation gasket sealer on it and stuck it back in the block, put antifreeze back in and started it back up. It had a little noise from the scored piston at first but then then it started to quiet down. I ran it another 2000 miles and later pulled the engine out and had it bored and bought an engine kit for it. Those little 2.5L engines were pretty tough. That was the second time I lost a frost plug so needless to say I never put that type of heater back in an engine block.
excellent video thanks for taking the time to show us how that's done. I'm thinking there's no reason not to paint that and feel confident in it's seal not that the paint is sealing it
Great video! Thanks!
Brilliant!
I have from time to time reused welch plugs depending on where it goes. When you get it out just redome it like it was prior to initial installation. I wouldn't recommend doing it twice on the same plug. It is just a quick fix for a non pressurised system in the field.
Where can I find a plug like this?
Should they fit that loose?
About Welch plugs, on your Super M disk brake covers there is a plug on the middle where the bull pinion shaft is. I am missing both sides on my Farmall 460 which is pretty much the same thing. Can you tell me on your Super M if they are Welch like these or more like a wheel hub cap. CNH parts wants a fortune for these but there are two types and without the part I don't know what to get. There doesn't seem to be a serial number spilt in the online parts manual.
Thanks
Kevin
@@squatch253 Thanks for doing that! There is a shoulder like the one on your head for a Welch plug to rest in. The bore in my brake cover is 2-7/8 inch.
@@squatch253 Thanks, I think because the parts manual lists two different parts (one is still available from CNH parts that one might be a Welch style plug. This unit has had the axle update according to its axle diameter and the triangle stamp on the serial number tag. Not sure how many parts that involved besides bigger axles...I am going see a guy that has a 560 that lives close by to see what that has. There are not many 460s around here. Mine is a 1960 model that had the small diameter axles. I would think that update would have involved at minimum besides axles and bearings, new wheel hubs.
@@squatch253 I stopped at an All States Tractor Parts salvage yard and looked at a couple of 60 series tractors. I found a 460 that had a hub style cap and a 560 that had a totally flat Welch cap in it. I would say a Welch plug would be acceptable but how they got it flat is a question it almost looks like a press with a 2.875 diameter flat solid drift was used to drive it flat.
interesting