Husqvarna 460

[a. palmer jr.]

Am in the process of rebuilding a 460 Rancher and am wondering whether or not to use Motoseal on the crankcase of the saw. I noticed when I took it apart that the crankcase had no sealer on it, just the regular factory rubber seals on the front and back.

 

[Chevboy0167]

I would think a thin layer wouldn't hurt. I use Dirko HT on every bottom end and around the seals on these style of engines so far with no problems.

 

[3000 FPS]

I took a 455 rancher apart and used a thin layer on the crankcase halves when I put it back together. That was about 7 years ago. Still running like a champ.

 

[Backstage]

I have a 455 just apart. New seals and bearings, no motoseal. Lots of leaks.

 

[3000 FPS]

I have a 455 just apart. New seals and bearings, no motoseal. Lots of leaks.

I guess you will be taking that back apart. That is too bad.

 

[Backstage]

I guess you will be taking that back apart. That is too bad.

ayup

 

[a. palmer jr.]

A day or so ago I went ahead and assembled the 460 without the sealer and yes, it did have a leak. I couldn't get it to start cold without priming the cylinder and when it started I could tell it was running very lean. I had rebuilt one or two of these before with the sealer with no problems but got curious on this last one because I had noticed none of the saws had sealer. Guess from now on it's either Motoseal or Dirko plus new seals. Probably use the Dirko since it's a bit thicker..

 

[cookies]

put a thin smear on any clamshell case halves and seals even the ones with rubber gaskets, top and bottom of the rubber gaskets/seals. just enough you get a thin hair of sealant poke out from the case but no more than absolutely necessary. I learned that the same way you described on the weird husky metal/rubber version on their top handles.

 

[Backstage]

Just cracked that 455 and put a thorough motolube layer over the gasket surfaces. I know you’re supposed to let it cure for 24+ hrs, but there’s no way I could resist putting a measly 7psi pressure and vacuum on the impulse line.

Before, I couldn’t pump it past a couple psi and that would immediately equalize. Now it holds vacuum like something out of a NASA lab.

Use your gasket sealant goop, kids.

 

[a. palmer jr.]

Just cracked that 455 and put a thorough motolube layer over the gasket surfaces. I know you’re supposed to let it cure for 24+ hrs, but there’s no way I could resist putting a measly 7psi pressure and vacuum on the impulse line.

Before, I couldn’t pump it past a couple psi and that would immediately equalize. Now it holds vacuum like something out of a NASA lab.

Use your gasket sealant goop, kids.

I will from now on...

 

[a. palmer jr.]

Wife had some women over to the house so I retreated to the garage, tore the 460 down and put it back together with the Motoseal (I was out of Dirko at the time) and, after replacing a fuel line on the primer bulb the saw started right up. I don't think I even had to adjust the carb from the one turn initial setting...

 

[Backstage]

That's not retreating. It's advancing to the rear!

Glad to hear it was working so well! Still trying to open time to fire mine up. Tried to tune it in before I realized it was definitely a leak, and nothing I did had any effect. Like the carb didn't care one bit where the screws were.

 

[a. palmer jr.]

Yeah, it was perfect timing, I was finishing up just as the ladies pulled out of my driveway..
Something else that may have contributed: The brand new fuel line from the carb to the primer bulb was split, and it wouldn't pump up. I have a feeling it wasn't Tygon but some cheap Chinese copy..

 

[lostone]

Yeah, it was perfect timing, I was finishing up just as the ladies pulled out of my driveway..
Something else that may have contributed: The brand new fuel line from the carb to the primer bulb was split, and it wouldn't pump up. I have a feeling it wasn't Tygon but some cheap Chinese copy..

I have some of the real Tygon but when I ordered some different sizes of it, it was fake. I gave up on getting real Tygon and have gone to Echo fuel line.

 

[3000 FPS]

The Echo fuel line is just as good if not better.

 

[a. palmer jr.]

The piece of fuel line I got was free and just thought I'd give it a try. It came in a kit of parts with a carburetor I bought from ebay. The carb worked fine, just the fuel line was bad. It was yellow but didn't really look like Tygon.