Perkins AD3 152 diesel piston failure

dacaseguy · Nov 25, 2016

When I pulled the pistons, # 1 & 2 piston looked burnt where the top ring grooves are. There is broken or burned out piece's in the piston. The tops of the pistons look fine. What would cause the piston failure. Dick

Newt Miller · Nov 25, 2016

that what happens to a perkins when somebody as much as shows them a can of starting fluid

Welding man · Nov 25, 2016

You are exactly right. I wish you had to have a prescription to buy the stuff. We get about an engine a month that has been ether bombed, Just finished a DT466E International engine.

David G · Nov 25, 2016

I would think it is ether or over fueling on the one cylinder.

ptfarmer · Nov 25, 2016

Starting fluid will detonate on its own in a engine with at least a 5.0:1 compression ratio. Use too much in a diesel engine which has a compression ratio starting around 16.0:1 compression ratio, and higher = broken pistons, and rings.

dacaseguy · Nov 25, 2016

I bought. This tractor with a bad engine. Could be starting fluid? I was wondering about injectors, but starting fluid sounds more like the cause I gues. Dick

ptfarmer · Nov 25, 2016

At least it's a "easy fix" compared to other engines. Wouldn't hurt to have the injectors tested while you have the engine apart. With a bad injector the cylinder wouldn't fire if it was plugged up, or it would smoke if the fuel wasn't sprayed in like it should.

Perkins AD3 152 diesel piston failure

dacaseguy

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Newt Miller

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Welding man

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David G

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ptfarmer

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dacaseguy

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ptfarmer

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