Interesting "Antique Outboard Piston Un-sticking Tool " on the Bay

[chris-p]

Antique Outboard Piston Un-sticking Tool

http://www.ebay.com/itm/Antique-Outboar … 0Y&vxp=mtr

[wedgie]

At first I said to myself "that’s not an antique tool!" 😳

The same seller is offering a puller that looks similar to an OMC but at a cheaper price. Even so, I’ll probably just stick with my harmonic balancer puller.

http://www.ebay.com/itm/Outboard-Flywhe … SwNphWW4r4

[beerman57]

It wouldn’t have moved the #4 piston on my MK55. but look at my ad for the other 3 pistons – pretty nice shape. I broke out the top of the cylinder / put one of my trucks front tires on the block and pounded on the piston with a block of wood and 2lb. hammer. Before I got the piston out, I remembered that the cyl. sleeves are steel, so the block can’t be scrapped as alum. It’s such a shame, that motor could have been rebuilt a long time ago, but now the block and crank are junk!

[jcrigan]

Will the schrader valve hold up to the pressure if using a grease gun?

[jeff-register]

Seems so barberic to slam it like that! Seems a quite a shame to destroy it.

[jcrigan]

Just looking at the safety aspect. I witnessed the effects of high pressure on soft tissue before.

[billw]

quote Jeff Register:

Seems so barberic to slam it like that! Seems a quite a shame to destroy it.

If you’re talking about the Mark 55 block, I had the exact same situation. Believe me, sometimes those pistons are just not going to budge, no matter WHAT. In my case, I actually cut the block off the piston. This was more a matter of determination than common sense; as I knew the crank would be no good too…..and it wasn’t any good. At least I got three good pistons and rods for my effort. Better than junking the whole long block.

As for the tool, it looks well made. I agree that the Shraeder valve may not handle 1000 psi but maybe you’re supposed to switch the valve and the fitting as needed?

Long live American manufacturing!

[jasonh]

He also lists one with a grease zerk similar to one I made out of old spark plug. You’d be surprised how much hydraulic pressure a heavy duty grease gun puts out. If that doesn’t get the piston out, nothing will.

[beerman57]

I got 3 great piston and rods too, just went about it a different way. I was able to get the rod caps off and remove the 3 good pistons before destroying everything else. I had 3 beautiful journals on the crank, but 3 out of 4 IS bad!

[Author]

Posts