Mega Grunt compressors

Last week when the L/H front tyre came off the bead while driving through sand at Robe I got the trusty Mega Grunt out of it's bag and started it up. When you need 'em the most they always stuff up.TYPICAL.

It rattled like it had a broken conrod or something.

Well today I pulled it apart and found the culprit.

On each end of the electric motor there is a shaft that a counter balancer clamps to which also has a short shaft on that that the conrod bearing just slips onto with nothing retaining it.

Well that counter balancer thingo had came loose and was spinning on that and wore the shaft the conrod bearing slips on. Ma bit of a mess but was able to file it round again and the bearing now slips on. Slightly loose, not a tight fit as it should be but it works.

The other thing that stuffed up was on the other piston the little flap with a hole under it riveted to the piston had broken off. That is now soldered back on and will see how long that will last.

I did not like the way the pump had been put together from the factory with sand getting into everything. There are no rubber or paper gaskets to seal anything as I had found out today. There was sand and dirt in everything including the electric motor around the brushes and in the bottom end of the crank case. The only place that was clear of that mentioned was above the piston.

After cleaning it all out, from now on I will not be placing the compressor on the ground.

That's enough from me, just thought I would let know my thoughts on the Mega Grunt.

Cheers Luke

P.S. The pump is nearly three years old and has done bugger all work in comparison to the amount some of yours would have done.