Farmertec 372XP Build

That's what led me down the base gasket route. I found a thread over at OPE, and they were talking about a similar issue, and how these saws didn't originally even have an O ring and ran fine. Per the thread over at OPE, I put some Hylomar blue on the bushing, buttoned everything back up. Of course, the stupid spring on the chain brake gave me a hard time.

Where can I get a sticker like that?

 

Amateur saw builder here. I'm sure Hylomar blue is great product, it's probably the guy doing the work. I however do find it a little suspicious that there wasn't even any present when I pulled the cylinder off. I know I put some on the cylinder, and the base. Maybe I got a bad batch IDK.

If you've been using it for years without any issue I would keep using it.

 

I've only use the hylomar for base gasket deletes. I haven't tried it on anything else.

 

There usually isn't a lot if I remove a cylinder during testing but theres always something. I do lay it on thicker than I would any other sealant because it wont stay in the engine partially blocking ports. Any that squeezes in ends up eventually going out the exhaust without causing damage.

 

I didn't lay it on very thick because I was concerned about it getting sucked up in the ports and going into the case. After it dried, I did spray water around the base of the cylinder and ran a vac test and none of it was getting sucked up. Live, and learn.

 

I've also used Yamabond with good results. Scott Kunz has been using Dirko for decades.

 

Switch to a pressure test and use soapy water.

 

Really need to do pressure and vac test to know 100% good to go...not uncommon to pass one, and not the other.

 

Don't want to railroad my own thread but I think you are missing the whole point of building the saw. Built this saw to learn how to work on this type of stuff (please see the first post). I didn't grow up working on engines, and I've always wanted to learn the basics about gas engines, and I think a $200 box of chainsaw parts is the best way to do it. Yeah, I could have bought a blown up 372XP but I'm not a fan of buying other people's junk. There are plenty of folks on here that can turn junk into gold, I don't have that god given ability. Also, my kid's college doesn't pay for itself. As much as I'd love to have a 572XP or a 564XP when they come out, I can't justify the cost for something I'm only going to use a few hours a year at best. That's why I'm trying to fix this saw vs buying a new one. The upside, I'm learning how to fix my own mistakes / issues I created.

 

Currently using a one-man brake bleeder vacuum that I had. Is there vac / pressure tool that you recommend?