Hacksawed carb repair?

[T. Cotten]

I only get the sick puppies, Folks,...

Here is an M-5. with the most immaculate, un-patinated nickel imagineable!
But somebody had the better idea to make deep hacksaw cuts through two of the aircleaner flange bolt holes.

Any suggestions at a repair that would do the least damage to the nickel?
Or who might provide such a service?

Thanks in advance, even if I don't get a reply (getting used to that!)

.....Cotten

[38 el]

If I was going to run it, I'd fill them with a light colored metal type filler, like Devcon, and let it be.
It will be barely visible once installed.
I wouldn't put any heat to that beautiful nickle finish.

[T. Cotten]

Barely visible ain't hard, 38el!

But structural strength is....
(There's deeply damaged threads involved.)

I wouldn't accept a putty, so neither should anybody who trusts me with it.

....Cotten

[Steve Swan]

probably not room on the inside for installing a Time-Sert..... but would not repair the cut.

[Shaky Jake]

Perhaps a silver braze. Fairly low heat and approximately the right color. Use a small tip on the torch. I've done it on a brass headlight shell with good success.

I wonder why someone did that to that carb.

Kevin

[Jerry Wieland]

I wonder why someone did that to that carb.

Kevin

Probably the bolts were broke off so they cut a slot in it to turn it out with a screw driver. Jerry

[jim d]

Mask off the carb well protect the finish and glass bead the saw cuts to clean. Then I would consider a anti-scale compound like Keepbryte that is in a powder form but may be mixed with alcohol and brushed on that is good to1650 f. After brushing the nickel with that you could pack the carb with a heat sink material similar to powered asbestos that has been made wet to be put around the area to be repaired but not tight up against the saw cuts. If you use a hi-temp silver solder to fill the saw cuts it will flow at a couple hundred degrees below the 1650 f. The silver solder can be purchased in different melting temperatures and amounts of silver that affect color. You also may want to paint the threads with the Keepbryte to keep them from leaching any silver solder. And finish with a Demel. I would look for a good custom metal fabricator or perhaps a jeweler that dose custom work.

[jwl]

Looks like someone had in mind to make a 2 bolt type m-5 and chickened out.

[rousseau]

Find a jeweler that has one of the new laser Welders. These are the latest (and greatest) thing in the jewelry repair industry. With one of these, you could easily fill those saw marks with out any effect to the nickel paint or any thing else. Google jeweler laser welder to see.

[T. Cotten]

Thanks Rousseau!

But Google only teases me with another toy to buy, or it would take a lot of phone calls to find a jeweler with one, and then two seventy-five mile round trips to the 'big city' if there is a jeweler there who will accept it.
Or postage, insurance, and delay to send it to Chicago, the really big city. It bothers me to let it get that far out of my control.

I think I can torch it....

....Cotten

[exeric]

You could consider using German silver, or pewter wire. Screw a bolt into the threads, then fill the hacksaw slits with the GS, or pewter rods and carefully hammer the rods to smush out and fill the void. Both metals are soft, and should be close to the nickel color. You can find German silver wire on ebay in many gauges, and quite inexpensive. I've never done this; just throwing it out there

[T. Cotten]

Eric!

Pewter would certainly be too soft.
Carl O. turned me on to some silver-solder that is pretty miraculous.

Just got to work up the nerve...

....Cotten

[Shaky Jake]

This is what I've used. Got it at a local welding supply house. Expensive, but you shouldn't need much. It's flux coated, and it's liquid at 1370 F. This is 45% silver, you can get it with higher silver content and a lower melting point, for more money. I would probably consider inserting a thin piece of brass in the gap, and silver brazing it in because I've been told that brazing is strongest in a thin gap, about .0015 inch. Just a thought. Whatever you do, I hope it works out for you.




Kevin


.

[exeric]

I do a lot of silver soldering (just yesterday) and it takes a lot of heat to the parent metal to melt, and properly accept silver solder, which could discolor the nickel plating. That is why I mentioned forming a filler metal into the hacksaw slits, instead of soldering. Perhaps a low melting point jewler's silver solder would have less of a risk of discoloration.

[T. Cotten]

I appreciate the replies, Folks,...

But I gotta do what I gotta do (attached).

Now... What do I charge for this rescue?

.....Cotten