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Old 14-05-2015, 06:20   #1
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Ford Lehman injector oil change mod

The CAV / Simms injection pump drain plug is equivalent to #2 SAE fitting available at hydraulic shops and online. This is the key part!

An elbow, a 2" nipple and a valve, and I now turn the valve handle 90deg, and the old fluid is piped a few inches away from the engine into my waiting coffee can. Zero mess. No more mirrors taped to the starboard water tank!

Life is good.

I drilled the orifice in the#2 fitting a little larger to speed up the flow, but every thing else is stock.

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Old 14-05-2015, 07:19   #2
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Re: Ford Lehman injector oil change mod

If the Simms is for the 6 cylinder, it takes 14 oz to fill, no need to remove the overflow bolt.
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Old 15-05-2015, 21:44   #3
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Re: Ford Lehman injector oil change mod

Yup, 1 3/4 cups from my plastic measuring cup goes in, and I measure how much comes out. After 80 hours, I have about an extra quarter cup, I assume from diesel leakage into the pump. But not sure what a 'too much' number is.

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