Thinking of buying a 6V92, had oil analysis done, marginally elevated Fe?

luvrbus · April 11, 2017, 10:05:27 AM

Quote from: windtrader on April 11, 2017, 09:48:27 AM
OK. I'll bite. What are the best ways to catch a clean oil sample from a DD 2 stroke block?

Take it through the dip stick tube with the nylon tubing and the vacuum pump or you can remove a oil galley plug and install a sampling port I do through the dip stick tube on most old 2 strokes

PP · April 11, 2017, 02:04:30 PM

Ciff,
Thanks for the tip on installing a sampling port. I've always been concerned with scrapings on the inside of the dipstick tube but didn't see another way of doing it unless I wanted an 'oilbath' which I get everytime I change the oil. on anything

Iceni John · April 11, 2017, 03:27:51 PM

What exactly is the reason to not take a sample from the pan's oil drain soon after shutting down a hot engine? I understood the oil had to be up to temperature, well mixed, and without condensation - is this not how it should be? One reason I installed a Fumoto oil drain valve was to make it easier to draw samples. I understand about preventing contaminants getting in the sample, so I would thoroughly clean the Fumoto before use.

John

windtrader · April 11, 2017, 04:51:30 PM

The concern is if the plug is on the bottom of the pan then particulate matter that has settled to the bottom of the pan will get pulled into the sample. That is why taking the sample via the dipstick tube allows for the sample to be taken from the top/middle of the pan.

eagle19952 · April 11, 2017, 05:35:19 PM

Quote from: windtrader on April 11, 2017, 09:48:27 AM
OK. I'll bite. What are the best ways to catch a clean oil sample from a DD 2 stroke block?

with the sampling device i posted...if the outside of the bottle is dirty...they did it wrong.

Geoff · April 11, 2017, 07:37:06 PM

I didn't realize how anal some people can get over an oil sample. If there is $#!% in the oil, it will show up in the oil sample, no matter how you carefully obtained it.

--Geoff

windtrader · April 11, 2017, 08:34:45 PM

Quote from: eagle19952 on April 11, 2017, 05:35:19 PM
with the sampling device i posted...if the outside of the bottle is dirty...they did it wrong.

OK. The image posted was a bit incomplete. It was not clear there is a tube that goes down the stick tube.

luvrbus · April 12, 2017, 05:22:48 AM

It is the unknown **** you don't want in a sample if you pay the price for a oil sample why not do it right.
The labs like Cat the only labs I have toured are spotless if only a hospital was as clean.The labs write the rules for testing to give you the best service and results possible so I follow the procedure they recommend, others can use any procedure they choose JMO