They also can truly weld cast iron reasonable size parts by preheat to over 1000 degrees and using cast iron welding rod while part is almost white hot. . How they fixed my F exhaust manifold . The lock and stitch method is more for repairing cracks as opposed to broken parts at room temp —large castings with precision machining like large pumps or cylinder blocks that you cannot heat up that hot . It destroys machining might warp and is flat out too big . Listen to guy who runs it on what to do . Fair and honest . Braze also works well and he will do —but not for parts that cycle hot to cold like exhaust manifold . So three processes to choose from . Let him decide . As stated in other email spendy place but worth it to get it done right . And this takes time , custom setup, and special skill . I am ok with that .
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Good description—Used all the time in industry to repair cracked castings. Regains the strength but may not hold pressurized hot coolant. Rich Barber Years ago, there was a small company in the San Fernando Valley that was selling the "stitching" units for very large diesel engines. As noted in the e-mail below, several holes were drilled in a line about 90 degrees perpendicular to the crack and overlapping one another just a bit. Then the stitching material was inserted. This material looked similar to the nails in a nail gun but the material holding the dowels together at the point of tangency was the same material that the dowels were made of. This material was then forcefully inserted into the holes previously drilled. The "dowels" were minutely closer together than the holes drilled, thus pulling the two sides of the crack tightly together. The holes had to be spaced and drilled very precisely in order for the insert to work. Depending where the crack is, this method may or may not work. If the crack is near where the pistons are nearly tangent to one another, it won't work because there is not enough material to work with. Hope my description is understandable as I am not familiar with the terminology used for these devices. Good luck!!! _____________________________________________________________________ In a message dated 6/29/2018 1:12:06 PM Pacific Standard Time, Chrysler300-noreply@xxxxxxxxxxxxxxx writes: I have heard of a process called “stitching”.
I believe that was the term .
Whereby a series of holes were drilled and tapped for a plug. Then the next hole was drilled overlapping the previous hole and it was drilled tapped and plugged and so on until the crack was “fixed”
That’s about all I can recall.
I did some research on this a number of years ago and was able to find the web site that listed contacts around the country at the time. One was fairly close as s I, recall, here in eastern Iowa.
I am also in the same fix with a 413 that was built to J spec’s including headers and a “George built” t/flite.
This was installed in a ’64 Newport back in the 70’s & 80’s. and man was it quick!!
The boys had a lot of fun with it in High school!
It’s ‘on the shelf in the shop to this day.
I replaced it with a 361 and sold it later.
From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Ray Jones 1970hurst@xxxxxxxxx [Chrysler300]
Sent: Friday, June 29, 2018 2:36 PM
To: rwestra
Cc: Chrysler300@xxxxxxxxxxxxxxx; Ray Jones
Subject: Re: [Chrysler300] Welding blocks
Don't know about the welding, but with some creative painting and some Plate Glass, they can make nifty Coffee tables for the shop or Man Cave..
Ray
On Fri, Jun 29, 2018 at 11:30 AM, RWestra@xxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:
I have two 65 Chrysler HP blocks, casing number 2468030A.. Both are cracked between the core plugs on the outside of the block. Is it possible to have these successfully repaired and if so is there a reliable Midwest source you could recommend? If not I plan to cart them to the salvage yard for scrap.
Thanks.
Rolland Westra
Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
--
Ray Jones. Y'all come on down an see us. Ya hear?
[Non-text portions of this message have been removed]
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