Cracked My Rear Iron with a Tap
#1
Cracked My Rear Iron with a Tap
I was tapping my heater core fitting in the rear iron and....
Is that fixable? I don't plan on reverting back to using a heater so a permanent fix is welcome.
I've used JB Weld for worse situations and it worked wonders. I don't really have the ability nor the resources to actually do a repair weld either.
Anyone have any other ideas? If I have to replace the rear iron, I will. But I would LOVE not to.
Any ideas will be considered!!!
Thanks in advance everyone!
Is that fixable? I don't plan on reverting back to using a heater so a permanent fix is welcome.
I've used JB Weld for worse situations and it worked wonders. I don't really have the ability nor the resources to actually do a repair weld either.
Anyone have any other ideas? If I have to replace the rear iron, I will. But I would LOVE not to.
Any ideas will be considered!!!
Thanks in advance everyone!
#6
Guidelines for Welding Cast Iron
Cast iron is difficult to just weld. Read the article above.
I vote some good JB Weld will probably do it..
Cast iron is difficult to just weld. Read the article above.
I vote some good JB Weld will probably do it..
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#13
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If you are ever in the Portland Oregon area I will buzz that up for you for free. Our shop doesn't typically weld for customers so I can fix a fellow rotorhead's iron off the books.
I konw it is a long shot, but I thought I would offer.
Oh and make that another vote for using a welder and not JB weld.
Edit: beautiful photography BTW
I konw it is a long shot, but I thought I would offer.
Oh and make that another vote for using a welder and not JB weld.
Edit: beautiful photography BTW
#14
Senior Member
iTrader: (9)
I agree, find someone who can weld it.
Welding cast iron is more tricky, because if you change the temperature abruptly, its prone to even more cracking, but if you slowly preheat the area, perform the weld, and slowly cool down the metal, it can be done relatively trouble free.
Welding cast iron is more tricky, because if you change the temperature abruptly, its prone to even more cracking, but if you slowly preheat the area, perform the weld, and slowly cool down the metal, it can be done relatively trouble free.
#16
I appreciate all the advice and offers to help guys. However, the motor was JUST rebuilt and I don't want to just yank the rear iron off to get it fixed.
I also don't really have the means to tote an assembled motor all over the place either lol.
After some further research, I think the JB Weld fix will work for the time being. I'll just have to monitor the area and see how it goes.
I also don't really have the means to tote an assembled motor all over the place either lol.
After some further research, I think the JB Weld fix will work for the time being. I'll just have to monitor the area and see how it goes.
#18
Garage Hero
iTrader: (93)
^ Yea well you could say its a good idea to do "this" or "that" but realistically.... almost all Mistakes are preventable. In this case anyone could've made the same mistake. Not all Irons are 100% exactly the same as far as strength/casting etc. He could've done the same tap on a different Iron and been perfectly fine. Are yougoing to be pluggin the hole permanently? If so... This is how I'd do it.
- Take some sand paper to the AN fitting to make it just the SLIGHTEST bit smaller as far as width goes. Just focus on the threads. Shouldn't take much but you'll know when you've taken off some because it'll be raw alum color.
-Don't put any JB weld on the iron yet
-instead use JB weld on 75% of the Inner Most Threads of the AN fitting.
- Which means if the fitting is an Inch long... you'll only put JB weld on 3/4 of an inch of the fitting....leaving the furthest section of the AN fitting (the section that will go in the deapest into the motor) without JB weld on it. This will ensure nothing breaks off inside the motor over time. But you will still have sealed the Problem area.
-Don't Tighten it OOOBER tight..just a nice snug fit...otherwise you'll crack it more. Once you have that inserted wait for it to dry.
- Then Use jb weld to cover the crack from the outside...pushing the goop into the crack with a small wooden stir stick or similar.
- Take some sand paper to the AN fitting to make it just the SLIGHTEST bit smaller as far as width goes. Just focus on the threads. Shouldn't take much but you'll know when you've taken off some because it'll be raw alum color.
-Don't put any JB weld on the iron yet
-instead use JB weld on 75% of the Inner Most Threads of the AN fitting.
- Which means if the fitting is an Inch long... you'll only put JB weld on 3/4 of an inch of the fitting....leaving the furthest section of the AN fitting (the section that will go in the deapest into the motor) without JB weld on it. This will ensure nothing breaks off inside the motor over time. But you will still have sealed the Problem area.
-Don't Tighten it OOOBER tight..just a nice snug fit...otherwise you'll crack it more. Once you have that inserted wait for it to dry.
- Then Use jb weld to cover the crack from the outside...pushing the goop into the crack with a small wooden stir stick or similar.
#19
Mr. Links
iTrader: (1)
I appreciate all the advice and offers to help guys. However, the motor was JUST rebuilt and I don't want to just yank the rear iron off to get it fixed.
I also don't really have the means to tote an assembled motor all over the place either lol.
After some further research, I think the JB Weld fix will work for the time being. I'll just have to monitor the area and see how it goes.
I also don't really have the means to tote an assembled motor all over the place either lol.
After some further research, I think the JB Weld fix will work for the time being. I'll just have to monitor the area and see how it goes.
#23
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You will be supervised how many shops pipe tap that hole!!!! ..I want to puke every time but what can i do, change the world.. Fu...k that .. ..
But yea that rear plate can be fixed if you plan on just capping off the heater line.. Get in contact with a shop that can machine and fixes irons...
Thanks Chip U
But yea that rear plate can be fixed if you plan on just capping off the heater line.. Get in contact with a shop that can machine and fixes irons...
Thanks Chip U