My Tractor Forum banner

Punctured case- Can it be welded?

4217 Views 33 Replies 17 Participants Last post by  duffer72
10 HP Briggs. In my attempt to get the fly wheel off, I used a large screwdriver to help pry off the fly wheel. I subsequently put a square hole in the top of the case. The whole is about 1 inch by 1 inch.

Can a patch be welded over the top of the hole? If that won't work, how about using JB Weld and a patch, or any other ideas?

I'm not a complete idiot, I did try to use a puller on it but it wouldn't budge so I used the screwdriver to help. Bad idea and I hope I didn't ruin the motor because of it.:duh:
1 - 20 of 34 Posts
If you can, post a picture of it, some places you can patch/weld and some places are not in a position to be repaired as such...
Welding by tig should work. Need a picture.

W
Not trying to High-Jack this thread, BUT! ;) Why don't folks just use a puller and avoid all the problems???

Are pullers THAT expensive?? I used a big 'ol puller that I have, and was surprised how easily it came off. Didn't have to "torque" it at all.

Pulled a ton of sheeves off over the years (kinda what I do at work much of the time)....
See less See more
To me a puller is a waste of time...
If you use a flywheel knocker or a copper hammer and hit the crank while lifting up on the flywheel you should have no problem. I removed more flywheels this way than most people even touched one. For sheeves or pullies I use a slide hammer and if that dont work I get out the puller last.
See less See more
I save time, pull the puller out FIRST, and have never damaged a thread with it.


It doesn't make sense to me-"If all else fails, go for the puller".
Not trying to High-Jack this thread, BUT! ;) Why don't folks just use a puller and avoid all the problems???

Are pullers THAT expensive?? I used a big 'ol puller that I have, and was surprised how easily it came off. Didn't have to "torque" it at all.

Pulled a ton of sheeves off over the years (kinda what I do at work much of the time)....
I save time, pull the puller out FIRST, and have never damaged a thread with it.
He did use a puller, as stated in post #1
See less See more
But seriously, pullers are nice...but Ive seen them break flywheels and damage crank ends..I personally experienced a puller nearly ruin an 18hp Briggs Intek crankshaft.

Personally, I use a mini pry-bar and a brass mallet first...if 2-3 smacks doesnt get it off, I go to the puller and if that doesnt get it, I add heat as required. 9 times out of 10, the mallet gets it off on 1-2 hits, and Ive never messed up a crank. Heck, tecumseh even sells a knocker and advises using this method...haha
See less See more
two wedges tap tap one side to the other.watch where you put them.nothing can stand a wedge.if need be tap the end of crank.
I thought he said he used a large screwdriver as a pry bar, thus making it an uneven pull, hence the 'hole'.


I've used heat, Kroil, tapping-but not too much tapping, or even hard hitting with either a hammer or a Dead-Blow.

The problem with hitting the end of any shaft, you "upset" the metal, which causes it to Expand. If that happens, then you'll be either filing, or grinding, whatever it takes to get the shaft metal back down small enough to get the sheave/flywheel off.

Luckily, the fly-wheel shafts are tapered, but if you hit it too much, you'll expand it to the point the nut won't fit anymore, till re-tapped.

Oh, and I have tapped on the end of the puller, in conjunction with the use of penetrants to try and get "things" off (pump impellers that are all corroded up are the WORSE! Most are brass, and very soft, so you can't "Pull" on them too much, and impellers on large to very large pumps are EXPENSIVE).
See less See more
With my heavy copper hammer I can smack the end of the crank really hard with no damage. A lead hammer would also work. Brass is a little harder and I never tried one but I'm sure it's a whole lot better than a sledge. A dead blow dosent have the umgh to get the job done. My copper hammer weighs around 2 lb. Briggs also sell a flywheel knocker. I have one made for briggs.
See less See more
If you can, post a picture of it, some places you can patch/weld and some places are not in a position to be repaired as such...
Here is the picture. What also concerns me is that I haven't been able to wash out, vacuum out, or even see the chunk that fell into the crankcase. Will it cause any harm in there?
Auto part Engine Vehicle Automotive engine part Fuel line
See less See more
you need to get chunk out!!!!
Short of pulling the engine out and opening the case, any other idea how fo get it out?
:dunno: :dunno: This may sound stupid but it worked for me one time with a small bolt........Get 2 buddies and flip the engine up and down....side to side and see if you can find it.....Then take one of the rods with a magnet on the end and get it out.........It did work ..........John...........:fing32: :fing32:
See less See more
Short of pulling the engine out and opening the case, any other idea how fo get it out?
no!!!!
a magnet will not work.. it will not stick to it
I thought he said he used a large screwdriver as a pry bar, thus making it an uneven pull, hence the 'hole'.


I've used heat, Kroil, tapping-but not too much tapping, or even hard hitting with either a hammer or a Dead-Blow.

The problem with hitting the end of any shaft, you "upset" the metal, which causes it to Expand. If that happens, then you'll be either filing, or grinding, whatever it takes to get the shaft metal back down small enough to get the sheave/flywheel off.

Luckily, the fly-wheel shafts are tapered, but if you hit it too much, you'll expand it to the point the nut won't fit anymore, till re-tapped.

Oh, and I have tapped on the end of the puller, in conjunction with the use of penetrants to try and get "things" off (pump impellers that are all corroded up are the WORSE! Most are brass, and very soft, so you can't "Pull" on them too much, and impellers on large to very large pumps are EXPENSIVE).
The "secret" is to HIT the da-n thing. Never in 60 plus years of working on these things have I damaged a crank, crankcase, or crankshaft. Again, HIT it.
See less See more
sounds like every one is in agreement beat the poop out of it.unless you can shrink an crawl in that hole and find that chunk.serious.find the piece and jb weld it back in place.good ta go.or have some one aliumiun weld.
1 - 20 of 34 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top