welding a 1969 HEMI block - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech welding a 1969 HEMI block

Print Thread

Page 1 of 2

1

2

welding a 1969 HEMI block #1340733 11/24/12 07:04 PM 11/24/12 07:04 PM
Joined: Aug 2010 Posts: 208 Munich, Bavaria D docford OP enthusiast
docford OP enthusiast D Joined: Aug 2010 Posts: 208 Munich, Bavaria	during our race in Le Mans, a sudden drop in fuel pressure caused an extremly lean condition at full throttle, which burnt a hole in one piston and also damaged the top of a cylinder wall, burnig like a passage between two chambers through the head gasket. This took off about 1/8" of block and cylinder head material. While repairing the head is no big deal, as it is aluminium, welding the 1/8" of cast iron material back on the block is not that easy. Would you know what type of iron they used to cast the HEMI back in the day?

Re: welding a 1969 HEMI block [Re: docford] #1340734 11/24/12 07:19 PM 11/24/12 07:19 PM
Joined: Nov 2003 Posts: 10,384 Upstate NY Bigcube I Live Here
Bigcube I Live Here Joined: Nov 2003 Posts: 10,384 Upstate NY	Not sure where it's damaged but can it be sleeved? Or is this on the deck? Jim

Re: welding a 1969 HEMI block [Re: docford] #1340735 11/24/12 07:26 PM 11/24/12 07:26 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	A welding shop with a oven can do it... they will use high nickle rod when the block is good and warm then let it slowly cool back in the oven

Re: welding a 1969 HEMI block [Re: docford] #1340736 11/25/12 12:45 AM 11/25/12 12:45 AM
Joined: Aug 2003 Posts: 43,195 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,195 Bend,OR USA	I've had that happened on a 440 block, call around to the heavy duty Deisel repair shops in your area and get the name and contact information on the welding shop they use to weld cast iron I ended up on my block having the deck surface brazed by a cast iron deisel welding shop then I had two sleeves installed and then had to have the block decked on a wet surface grinder. The head was cast iron welded and I had to find a shop that had a wet grinder to surface the head also, the regular automotive machine shops in SO CA said they wouldn't touch a welded head on thier equiptment because cast iron turns into a really hard material(it would damage the cutters on thier rotary broaches) when welded Good luck, let us know what you do and the shop that does the work for you please Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: welding a 1969 HEMI block [Re: Cab_Burge] #1340737 11/25/12 01:31 AM 11/25/12 01:31 AM
Joined: Jun 2007 Posts: 2,646 Plymouth Meeting, PA bigtimeauto Trophy Winner
bigtimeauto Trophy Winner Joined: Jun 2007 Posts: 2,646 Plymouth Meeting, PA	Quote: I've had that happened on a 440 block, call around to the heavy duty Deisel repair shops in your area and get the name and contact information on the welding shop they use to weld cast iron I ended up on my block having the deck surface brazed by a cast iron deisel welding shop then I had two sleeves installed and then had to have the block decked on a wet surface grinder. The head was cast iron welded and I had to find a shop that had a wet grinder to surface the head also, the regular automotive machine shops in SO CA said they wouldn't touch a welded head on thier equiptment because cast iron turns into a really hard material(it would damage the cutters on thier rotary broaches) when welded Good luck, let us know what you do and the shop that does the work for you please ^^^^^^^this, i have a block that was reapiered this way BB, TT5,Procharged 3300lb Street Car 4.79/154

Re: welding a 1969 HEMI block [Re: bigtimeauto] #1340738 11/25/12 01:47 AM 11/25/12 01:47 AM
Joined: Feb 2005 Posts: 20,177 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,177 PA.	My son burnt a head gasket between number 3 and 5 in his small-block with cast iron heads on it a few years ago.I cleaned it up with a grinder, preheated it with a torch and tigged both the head and block with stainless filler. Worked out great. 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: welding a 1969 HEMI block [Re: pittsburghracer] #1340739 11/25/12 02:05 AM 11/25/12 02:05 AM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	Is the block O-ringed? I wonder if brazing the deck to make it flush would do the trick since it's not in a high stress area? AFAIK If you have it cast iron welded the entire block will need to be remachined because the heating and cooling process will likely distort everything.

Re: welding a 1969 HEMI block [Re: Bigcube] #1340740 11/25/12 04:56 AM 11/25/12 04:56 AM
Joined: Aug 2010 Posts: 208 Munich, Bavaria D docford OP enthusiast
docford OP enthusiast D Joined: Aug 2010 Posts: 208 Munich, Bavaria	Quote: Not sure where it's damaged but can it be sleeved? Or is this on the deck? It is indeed on the deck. The damage is like a crease joining two cylinders

Re: welding a 1969 HEMI block [Re: pittsburghracer] #1340741 11/25/12 10:01 AM 11/25/12 10:01 AM
Joined: Aug 2010 Posts: 208 Munich, Bavaria D docford OP enthusiast
docford OP enthusiast D Joined: Aug 2010 Posts: 208 Munich, Bavaria	here is a picture of the damaged cylinder bank. the same crease between the same two cylinders was also burned in the cylinder head. 7475579-HEMIburntpistonLeMans.jpg (338 downloads)

Re: welding a 1969 HEMI block [Re: docford] #1340742 11/25/12 11:46 AM 11/25/12 11:46 AM
Joined: Feb 2005 Posts: 20,177 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,177 PA.	That looks exactly like my sons did. Simple fix with tig or high nickle stick rod. 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: welding a 1969 HEMI block [Re: pittsburghracer] #1340743 11/25/12 11:49 AM 11/25/12 11:49 AM
Joined: Jan 2003 Posts: 9,670 Lima, Peru domingo EL Master
domingo EL Master Joined: Jan 2003 Posts: 9,670 Lima, Peru	oven, like cab and mr pea body said.... After that, it would not be a abad idea to check all tolerances and machined surface to double check if they havent distorted.

Re: welding a 1969 HEMI block [Re: pittsburghracer] #1340744 11/25/12 12:54 PM 11/25/12 12:54 PM
Joined: Jan 2004 Posts: 8,273 fredericksburg,va C cudaman1969 master
cudaman1969 master C Joined: Jan 2004 Posts: 8,273 fredericksburg,va	Quote: That looks exactly like my sons did. Simple fix with tig or high nickle stick rod. Can you give me the number of the nickle rod you used? Previous owner got wild with valve notches and got to close to pushrod holes, trying to find a fix.

Re: welding a 1969 HEMI block [Re: cudaman1969] #1340745 11/25/12 01:06 PM 11/25/12 01:06 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	With the new welding materials and methods this is an easy fix.Just make sure the person doing it is experienced.Protect the area near from any weld splatter. We do this type of repair quite often. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: welding a 1969 HEMI block [Re: B G Racing] #1340746 11/25/12 02:44 PM 11/25/12 02:44 PM
Joined: Feb 2005 Posts: 20,177 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,177 PA.	The last two that I repaired I tigged. My stick welding skills are slowly eroding since I retired from Millwright work 3 years ago. In my shop I either grab the mig or tig. Check out this link if you are going with stick. I used a 3/32 rod. Like Bob said protect surrounding areas from splatter. I use fiberglass cloth and a product called kayo-wool. Keep covered to let it cool slowly after the repair is done. Some guys want to make a simple repair into a project. http://www.messerwelding.com/Product%20PDFs/by%20part/MG%20765.pdf 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: welding a 1969 HEMI block [Re: pittsburghracer] #1340747 11/25/12 04:10 PM 11/25/12 04:10 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	Quote: The last two that I repaired I tigged. My stick welding skills are slowly eroding since I retired from Millwright work 3 years ago. In my shop I either grab the mig or tig. Check out this link if you are going with stick. I used a 3/32 rod. Like Bob said protect surrounding areas from splatter. I use fiberglass cloth and a product called kayo-wool. Keep covered to let it cool slowly after the repair is done. Some guys want to make a simple repair into a project. http://www.messerwelding.com/Product%20PDFs/by%20part/MG%20765.pdf There is a new 55 wire for mig welding cast. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: welding a 1969 HEMI block [Re: B G Racing] #1340748 11/25/12 04:33 PM 11/25/12 04:33 PM
Joined: Feb 2005 Posts: 20,177 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,177 PA.	Quote: Quote: The last two that I repaired I tigged. My stick welding skills are slowly eroding since I retired from Millwright work 3 years ago. In my shop I either grab the mig or tig. Check out this link if you are going with stick. I used a 3/32 rod. Like Bob said protect surrounding areas from splatter. I use fiberglass cloth and a product called kayo-wool. Keep covered to let it cool slowly after the repair is done. Some guys want to make a simple repair into a project. http://www.messerwelding.com/Product%20PDFs/by%20part/MG%20765.pdf There is a new 55 wire for mig welding cast. What gas do they use Bob? These guys would crap if they saw what we did back in 1985 the week the bad tornadoes came thru. I had a guy weld the deck of my 440 and a head between 3-5 and I filed it flat with a file. Was back racing 2 days later. A man's gotta do what a man gotta do. 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: welding a 1969 HEMI block [Re: B G Racing] #1340749 11/25/12 06:45 PM 11/25/12 06:45 PM
Joined: Aug 2010 Posts: 208 Munich, Bavaria D docford OP enthusiast
docford OP enthusiast D Joined: Aug 2010 Posts: 208 Munich, Bavaria	Quote: With the new welding materials and methods this is an easy fix.Just make sure the person doing it is experienced.Protect the area near from any weld splatter. We do this type of repair quite often. great! what weld rod do you use ? would you have a reference ?

Re: welding a 1969 HEMI block [Re: pittsburghracer] #1340750 11/25/12 06:51 PM 11/25/12 06:51 PM
Joined: Aug 2010 Posts: 208 Munich, Bavaria D docford OP enthusiast
docford OP enthusiast D Joined: Aug 2010 Posts: 208 Munich, Bavaria	Quote: The last two that I repaired I tigged. My stick welding skills are slowly eroding since I retired from Millwright work 3 years ago. In my shop I either grab the mig or tig. Check out this link if you are going with stick. I used a 3/32 rod. Like Bob said protect surrounding areas from splatter. I use fiberglass cloth and a product called kayo-wool. Keep covered to let it cool slowly after the repair is done. Some guys want to make a simple repair into a project. http://www.messerwelding.com/Product%20PDFs/by%20part/MG%20765.pdf Thanks! Would you know about the MG200 electrode ? Would it also do the trick and not be as hard to machine later on ?

Re: welding a 1969 HEMI block [Re: docford] #1340751 11/25/12 08:33 PM 11/25/12 08:33 PM
Joined: Feb 2005 Posts: 20,177 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,177 PA.	Quote: Quote: The last two that I repaired I tigged. My stick welding skills are slowly eroding since I retired from Millwright work 3 years ago. In my shop I either grab the mig or tig. Check out this link if you are going with stick. I used a 3/32 rod. Like Bob said protect surrounding areas from splatter. I use fiberglass cloth and a product called kayo-wool. Keep covered to let it cool slowly after the repair is done. Some guys want to make a simple repair into a project. http://www.messerwelding.com/Product%20PDFs/by%20part/MG%20765.pdf Thanks! Would you know about the MG200 electrode ? Would it also do the trick and not be as hard to machine later on ? I never used that rod. Your best bet is to go to your local welding supplier and ask what they recommend. I actually dug my 765's out to get you the number and they have a phone number on them. Canada 1-800-663-2800 U.S. 1-800-654-6333 I keep my good rods in my bedroom. 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: welding a 1969 HEMI block [Re: pittsburghracer] #1340752 11/25/12 08:55 PM 11/25/12 08:55 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	We like to use 100%Argon.There are a veriaty of rods if you preferr stick welding.What rod depends on the nickle content of the cast iron.What ever method you use peen each weld application as you weld.I don't suggest any novice take on this type of welding you can ruin parts very easy and create a unrepairable mess. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Page 1 of 2

1

2

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1