Another 365/372 Build..

[Jimmy in NC]

The backstory:

Some may recall my 3120XP I had a few weeks back.. I had mentioned I really wanted a 372, 7900, etc and not a 120cc monster. It was in rough shape but in my eyes it was salvageable and not worth trashing but it would always be a bit big for a firewood saw.

Luckily Saw Doc had just what I needed, a project to swap for a project, a 365 Special that needed a over haul and top end.

I've ordered a Meteor top end from Randy with a full blown port job so I'm looking forward to running my first ported saw. The plan is to split the cases down to bare, clean, inspect, and build it up with new bearings, seals, etc and then scare local crews with a low top 365 that hauls butt!

I'm sure I'll have lots of questions along the way but right now I was wondering if anyone knew for sure what bearings the crank uses. I know I can split it and measure, etc but right now I have a 268 apart and some other saws apart waiting for parts. I hate to take too many apart at once as parts are always misplaced. If someone knows for sure I can go ahead and order the bearings, and hopefully around Christmas, get this saw together. I'll try to take plenty of pictures as everyone loves pictures although the old timers will probably be bored with another 372 build. It will also be my first build where I split the case and start from scratch and only the second one I've split.

Picture of the first one I split...

I'm pretty sure that this one won't be that bad inside.. ok I know it won't!

So... anyone have a bearing number?!

 

[Brad2185]

Oooh! Subscribed....opcorn:

 

[w8ye]

You can remove the bearings and measure them? Then look them up on the Internet?

It is something like 6202

 

[Jimmy in NC]

You can remove the bearings and measure them? Then look them up on the Internet?

It is something like 6202

I know I can pull it down, but then I have another box of parts as opposed to a whole saw which is less likely to loose parts while waiting it's turn. If I can get a confirmation on the bearing number as 6202 I'll order a pair. The plan is to have everything ready to go so when I finally have time, I can sit down and build this saw and not pull it apart, order parts, eat pie, eat more pie, build saw partially, eat pie, finish build. This is more important right now as it is holiday time and parts will start slowing down.

So anyone that has done some of these able to confirm that 6202 are the ones I need... unshielded with a C3 speed rating.

 

[w8ye]

bearing 15 X 35 X 11 6202 C3 SKF

Husqvarna 738220225
BALL BEARING-6202-C3 SKF

Parts and Diagrams for Husqvarna 372 (2011-05)

 

[Jimmy in NC]

Thanks! Will get them ordered up.

 

[Jimmy in NC]

Ok.. all new rubber bits are on order and bearings are on the bench. Last thing I think I will need is a bit of screen for the muffler mod. Any ideas where to find a good screen to put in a muffler mod? I'm going through the front as opposed to the 288 side deal. I know that grease splatter shields were discussed the other day but I think the group said they wouldn't last long to exhaust heat. Soo.. Ideas? Still trying to build this thing in the week between Christmas and New Years.. just lining up parts right now.

 

[Jimmy in NC]

This style 372 mod is what I'm shooting for.

 

[Jimmy in NC]

Progress finally!

Finally got a chance to get into my 365 build. It's been slow but keeping the better half happy is more important to me than chain saws.

I'm going with a 288 deflector muffler mod and have the parts for that. I finally got the cases stripped down and hope to get the crank back in this weekend. I will keep updating this thread as I make progress for those that are interested.

Nice clean cases, a good place to start.

 

[Jimmy in NC]

Real progress finally! I know I've been slow but I've been very nervous about putting together a set of cases on my saw. I don't know why but I've just never done a set before.. anyways.. I bought a toaster, quick chat with Mastermind on the phone and tonight I decided to go for it.

The bearings that came out...

I like mine warmed for about 20 minutes...

Half way there...

And together!

The first side wasn't quite as warm as I should have had it and it locked up with the crank half way in the bearing. The second half got a bit more heat and slid right on. I took a propane torch and heated the first half again and gently pulled it snug. When I was done everything was still real real warm and one solid whack on either side with a rubber mallet and she rolls so smooth. A big change from the cheap saws I'm used to! Now to get down to business of putting it back together.

 

[nmurph]

Very good.

I take a feeler gauge and measure bw the case and the crank bells bf I split them.

 

[Jimmy in NC]

Little more progress tonight.. got the top end on and sealed. Also put the crank seals in and started cleaning up the last few parts. I hope to get the saw vac tested tomorrow and if all goes as planned, have it together and done this weekend! (Weekend free as the wife is out of town!)

Will get more pictures of better quality later but for tonight this will do.

View attachment 282302View attachment 282303View attachment 282304

 

[andrethegiant70]

Sweet

Nice, clean build there, done very nicely. Don't forget that itty bitty rubber washer under the oiler bushing. It's the only weird thing about a 372 build.

That's going to be a NICE saw.

 

[kmcinms]

Nice saw. What jug is that? Take it easy on the sealer. a little dab'll do you there. :msp_wink:

 

[Jimmy in NC]

Got a new o-ring from Husky for the PTO side. I was raised that you get it clean before you put anything back together, not just washed. Makes things go so nice and smooth.

I am not really a fan of sealers and know that was a bit heavy but it will work. I am sure my skills will get better with time.

This is one of Masterminds full on ported Meteor kits with cut squish and all. No before shots/times as the saw came to me with no top end on it.

 

[nmurph]

.Take it easy on the sealer. a little dab'll do you there. :msp_wink:

Yes...smear a thin film on the crankcase and on the cylinder. The assemble the cylinder onto the case and give the cylinder a few twist.

 

[chainsaw kid]

Nice build! I like the sleeper aspect

 

[Jimmy in NC]

So on with the show... Saturday I had some early morning distraction in the form of a free camper trailer.. when that was over I got back into my saw.

With the jug on it's clear sailing.. most of the hard work is done. Started with an oil pump install complete with all new rubber parts of course.

And a new drive...

Now for a tank..

And a carb.. with sealing rubber for the Vac Test.

 

[Jimmy in NC]

Now we need to modify the muffler..

And a rubber gasket for it too.

Now we need some of the flywheel side stuff..

At this point I couldn't figure a good way to connect my vac pump to test this bugger. I ended up slipping the impulse line up in the vac line from the pump. It was a very slow leak down and I attributed it to the slip connection and decided to wing it. I know I will get yelled at for that.. but hey... it's my saw and I gambled.

 

[Jimmy in NC]

So lets put a rim on this bad boy and fire it up! Went with a 7 pin to go easy on it at first...

Set the carb at 1.5 / 1.5 out. It fired in 5-6 pulls and with minor tweaking it idles. Rotating the saw in all positions it idles all day long with nary a change in idle speed so I think I am good on the vac/pressure. The saw pulls the 20" bar burried easily in oak with a 7 pin. Swapped it out for a 8 pin and 24" and it is still 4 stroking hard, not bouncing on the rev limiter.. well maybe it is. :msp_unsure:

I trimmed the cap tabs on the carb but left the plastic screw driver slots in an effort to make it easier to tune. Finding these screws ticks me off.. I can't get a screw driver in the little plastic slot to save my life! Going to play with it a little more this afternoon and hook up my slow tach. May even try to get a video too...


If anyone wants to see all the pictures of the build, there are HERE - 365 SP Build There are even some pics of the Hack's handy work with his chainsaw file.