Found my oil leak

[super99]

Top of the motor has had oil on it and I couldn’t tell where it was coming from. I washed it after replacing the power steering line so I did the motor also and found this. Luckily I have another one to replace it with.

 

[BarnyardEngineering]

One too many ugga-duggas from the impact the last time someone put the valve cover on...

 

[WI Dan]

Top of the motor has had oil on it and I couldn’t tell where it was coming from. I washed it after replacing the power steering line so I did the motor also and found this. Luckily I have another one to replace it with.View attachment 80990View attachment 80991

That looks hard to fix. Good thing you have another.

 

[Mike(NEOhio)]

The one on my 1550 is the same but the welded crack runs through all four holes. I think most of them are like that, along with the hole in the PTO clutch cover.

 

[timcasbolt]

I'll bet somebody good with brazing rod or a tig torch could fix that. Probably need to bake the oil out of it for a couple days first.

 

[used red MN]

I'll bet somebody good with brazing rod or a tig torch could fix that. Probably need to bake the oil out of it for a couple days first.

I have no clue, but does a TIG torch work good for brazing cast iron? I thought you needed the cast iron heated up in a larger area to allow a slower cool down to avoid cracking. I have seen a lot of piping welded with TIG, some guys can make it look like a well set machine did it.

 

[Mike(NEOhio)]

I have no clue, but does a TIG torch work good for brazing cast iron? I thought you needed the cast iron heated up in a larger area to allow a slower cool down to avoid cracking. I have seen a lot of piping welded with TIG, some guys can make it look like a well set machine did it.

Not under pressure or a stressed part so all it has to do is seal. Oil is probably soaked into the iron. I'd say grind a V groove on the crack, maybe half the thickness to expose fresh metal then braze it. I never looked to see how mine was welded. I'm just careful with the wrench. If it's cast steel arc welding will do it. Cast iron, braze it. Good degreasing first, overnight soak in purple power.

 

[Watthour]

I have no clue, but does a TIG torch work good for brazing cast iron? I thought you needed the cast iron heated up in a larger area to allow a slower cool down to avoid cracking. I have seen a lot of piping welded with TIG, some guys can make it look like a well set machine did it.

TIG with a high nickel alloy filler will fix that nicely, probably stronger (tensile) than the iron casting. As mentioned above, cleaning first would be advisable.

 

[BarnyardEngineering]

I have no clue, but does a TIG torch work good for brazing cast iron? I thought you needed the cast iron heated up in a larger area to allow a slower cool down to avoid cracking. I have seen a lot of piping welded with TIG, some guys can make it look like a well set machine did it.

You still need to follow the same preheat and cooldown process. You just use a TIG torch in place of the oxy-acetylene for heat during the brazing process. Argon is cheaper than acetylene... The advantage is you can control the heat with a pedal, but there are guys out there that can lay stacks of dimes with an oxy-acetylene rig.

 

[stevieb49829]

I tigged a bolt ear back on my Massey bellhousing the way Watthour says. I had some high nickle sticks, so I pounded the flux off them and used them as filler. It worked well. Preheated just the local area, and let it cool down between short passes. Still uncracked. I've got a cam cover to do next. That one went into the wood fired boiler for a while this last winter, to bake the oils out of it. Slow and easy with just enough heat to flow the filler into the V. steve

 

[super99]

TIG with a high nickel alloy filler will fix that nicely, probably stronger (tensile) than the iron casting. As mentioned above, cleaning first would be advisable.

I don't have a Tig welder, don't know anyone that does.