Mellor lathe.

[Seadog]

If it's in the main body of the plate I don't see it as being a problem. However, it just looks like a scratch to me.

 

[Richard.]

Do you have a dye pen kit Spencer. This will tell you if it’s a crack or not.

 

[Richard.]

Is it the line that runs across between these bolt pitches.
Could be a crack.

 

[God mode restorations]

Do you have a dye pen kit Spencer. This will tell you if it’s a crack or not.

That's something I been meaning to get

 

[MattF]

Put some white spirit on there and rub it around. If it's a crack, a wet line will be visible once it's evaporated from the surface, due to it seeping into the crack.

 

[God mode restorations]

Put some white spirit on there and rub it around. If it's a crack, a wet line will be visible once it's evaporated from the surface, due to it seeping into the crack.

Will try that now

 

[God mode restorations]

Well. All looks good chaps. Could of definitely said there was a crack.

 

[God mode restorations]

View attachment 134383
Is it the line that runs across between these bolt pitches.
Could be a crack.

That's what it looked like. Could of definitely said there was a crack.

 

[Richard.]

Put some white spirit on there and rub it around. If it's a crack, a wet line will be visible once it's evaporated from the surface, due to it seeping into the crack.

It would work if the crack is deep but fine cracks possibly running from it would probably go undetected. If it’s where I marked the line and it arrests between those two bolt holes it will be fine. However if there is a tiny branch coming off it then it may be scrap. The only way to tell for sure is with a crack detection method.

 

[God mode restorations]

It would work if the crack is deep but fine cracks possibly running from it would probably go undetected. If it’s where I marked the line and it arrests between those two bolt holes it will be fine. However if there is a tiny branch coming off it then it may be scrap. The only way to tell for sure is with a crack detection method.

That's next on the list Richard .will get some crack penetrant dye and test it. Don't want to put that motor on and the plate cracks.

 

[Richard.]

That's next on the list Richard .will get some crack penetrant dye and test it. Don't want to put that motor on and the plate cracks.

If the crack simply goes between those holes then you have nothing the worry about. The stresses have being relieved by the crack arresting at the two points. And it cannot grow any further. I would imagine that’s the case but it would not hurt to check it properly and see if any others are present. Cracks like that usually happen when the holes don’t line up properly and what ever is being bolted down is forced to line up. As in your case it looks like that motor is lined up and bolted up properly so the stresses aren’t there to cause it to worsen. I think you’ll be fine but check it.

 

[Pete.]

You're worrying about nothing at all mate just bolt it up and get making chips.

 

[Richard.]

You're worrying about nothing at all mate just bolt it up and get making chips.

No mate. Awful advice! Hes gonna be bolting a 1hp motor to it spinning up at 1400rpm.
unlikley it will fail yes but if that is a crack and it is snaking off to the cast edge, it would be nice to pick it up now rather than pick it up in pieces. Spencer there is no harm in playing safe and putting a bit of dye and developer on it to be sure.

 

[Pete.]

No need to be a drama queen that plate is doubled up to a steel plate with 5 bolts. It could be cracked like a dropped plate and still hold a motor well enough.

 

[God mode restorations]

Appreciate the advice guys. But for my own piece of mind I will just check it. Chances are it will be fine. But there is always that chance something could go wrong.

 

[Richard.]

No need to be a drama queen that plate is doubled up to a steel plate with 5 bolts. It could be cracked like a dropped plate and still hold a motor well enough.

Well if it’s doubled up yes it’s doing nothing really in which case it doesn’t matter. I wasn’t being a drama queen I thought it was the main support plate for the motor.

 

[God mode restorations]

Still working on my brackets. Had to do a few mods as some **** didn't take in to consideration the adjustment for belt. So a little faffing about a some welding

 

[God mode restorations]

Almost done. Thank f.

 

[Pete.]

Nicely made.

 

[zx9]

Nicely made.

^^^^^^^^^ WHS ^^^^^^^^^^ I am waiting to see what the newly added tang does.