Well, I did a little research and I think I have a plausible explanation. FCW is Freudenberg and the attached datasheet shows seal color corresponding to seal material type. The blue is regular nitrile whereas the brown is a fluoropolymer. The fluoropolymer holds up much better to fuel and...
Hello,
Currently working on rebuilding an MS251. I have 2 engine assemblies and am going to make one good one. I noticed that the oil seals appear to be a different color from the FW and PTO side. This makes me wonder if they are different materials. The PTO side is brown while the FW side is...
This and any lye/caustic cleaners work REALLY well on organic crud like tree/pine sap. I was taking down a hickory tree and the chain got all gunked up. Kerosene wouldn't touch it so in desperation I put it in an old can with simple green in a double boiler on the stove. It cleaned that chain up...
Yes, diesel has a non-hazardous (non-explosive) designation. So if you save a couple or 3 gallons of used diesel what do you do the next time that you need it? it is now full of dirt and sawdust from previous uses. Do you siphon the good stuff off of the top into another bucket? If you dunk...
I am currently using diesel but not in dipping quantities. Just slathering it on with a brush.
The real issue is what do you do with the diesel between uses or dispose of it after you are done. I am currently recycling small quantities of it with used motor oil. I live in a subdivision where...
If either of the attached MSDS sheets is the product that you are referring to it appears to be a water based caustic de-greaser like Simple Green and a bunch of others. Seems like it would take a lot of de-greaser to cut through all of that bar oil.
Hello,
I am looking for ideas on the most efficient ways to clean up something like what is pictured below. I also don't have access to a parts washer. I do have a power washer but that can damage plastic and the spray force can blow the object being cleaned across the driveway. Any...
Thanks, I was planning on a re-tune. I haven't torn into the saw yet so don't know how choked up the muffler is. The only reference that I have to go by is for a non-EPA 025 (same displacement) which had a pretty large outlet.
Hello,
I am wondering if a muffler mod is advised (or not) on strato-saws? I am mostly interested in improving operating margin i.e. making the saw run cooler as happens with non-strato engines. Has anyone done any testing on this? I know that strato charging is supposed to increase scavenging...
I finally got some cooler weather and mostly time to tear into this engine. The main issue found was that the exhaust valve was crusted with hard carbon and leaking like a sieve. The exhaust passages behind the valve and to the muffler were also caked in fairly soft carbon. The inside of the...
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