Yet Another "What's On The Bench?" Thread.

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On my bench this week is an MS170 that won't oil, MS250 that won't run right, McCulloch PM700 with a fuel leak, and an 029 that's low on power.

MS170 oil hose wasn't seated very well in the oil pump housing, and the filter was mostly plugged.
MS250 needs a carburetor.
PM700 needs the fuel tank gasket (or gasket sealer... probably gasket sealer).
029 scuffed up piston.

These will keep me busy.

Also on the bottom of the bench is my 064. I broke a piece of the mag casting where the jug seats. Not a real happy camper at this point. Does anyone know what you weld mag with? Will an aluminum MIG welder do the job with a skilled operator?
Tig weld if anything.
 
Thanks Deets. TIG weld with an aluminum filler rod, or is there a special alloy that is required for mag? Don't have access to a TIG welder, but if MIG absolutely will not work, I might find a TIG welder.
 
Hard to say about the mig, you just don't have the control that you do with tig. Never welded mag, but when in doubt I usually use stainless. It works well with many different alloys
 
I have a few projects on the bench.

Getting the 031av cleaned up and refreshed.
IMAG0929.jpg
Repowering my old Giant Vac push blower. I hate Briggs engines. In goes the $99 6.5hp HF engine.
IMAG0933.jpg IMAG0932.jpg


Put a new carburetor on my old 80's Japanese leaf blower (Kawasaki TA51 engine). This blower works better than most new ones.

IMAG0931.jpg IMAG0930.jpg
 
Thanks Deets. TIG weld with an aluminum filler rod, or is there a special alloy that is required for mag? Don't have access to a TIG welder, but if MIG absolutely will not work, I might find a TIG welder.


I have never done it but I work with and learned welding from people that have welded magnesium. Welding magnesium is trickier than aluminum. You won't be able to use stainless filler or aluminum. You can mig weld, but the wire might cost as much as the saw depending on the size roll you can get. As deets said tig welding would be your best bet if you could find someone that can do it.
 
I was looking at the manifold with the 2 back cylinders and front 4 feeding like the common rail. I guess it didn't come out of a dodge.
Bought it in Alberta,it came from the U.S.A as a used school bus,, but the 10 buses didn't pass some test, so they sat for near 10 years and were scrapped, about 60,000 miles on it.
It has an air compressor on the other side also, and a ton of sensors not needed on the dodge. The injection pump wont work with the dodge ECM.
So its not a straight swap.
BBB
 
Bought it in Alberta,it came from the U.S.A as a used school bus,, but the 10 buses didn't pass some test, so they sat for near 10 years and were scrapped, about 60,000 miles on it.
It has an air compressor on the other side also, and a ton of sensors not needed on the dodge. The injection pump wont work with the dodge ECM.
So its not a straight swap.
BBB
I seen those sensors on the turbo side and it hit me it wasn't a dodge application
 
[/QUOTE]
Thanks Deets. TIG weld with an aluminum filler rod, or is there a special alloy that is required for mag? Don't have access to a TIG welder, but if MIG absolutely will not work, I might find a TIG welder.

You need magnesium filler rod to do it right. TIG FOR SURE. Find a good welding shop or just find a replacement case. The fab work may cost more!
 
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