Chainsaw Repair

Update:

The Poulan 530019051 seals are now NLA (as of last Summer).  SKF/CR-5510 is a good aftermarket replacement.  National/Timken 313156 is a good # too (and is available through many auto parts outlets). 

HVA 'obsoleting' these seals really pissed me off.  I have about 5-7 or so (funny that I can't remember the exact # right now.....too many projects) XXV variants waiting for crank seals (I won't put an old saw back in service without doing seals anymore).  Tried last year to order enough 530019051's to do the whole lot, and got my money refunded for them during the process.  I'm mostly annoyed with myself for not ordering a bunch of these seals earlier when they were still a stocking Poulan/Husky part...

For some reason, the SKF/CR 5510 and National 313156 seals are somewhat expensive........................and special order items.  Strange, since they come up as a transfer case and MT shift shaft seal for many vehicles.  Hmmmm.......that reminds me that I have an NOS Ford TC rebuild kit in a box of parts in the shop.  Wonder if I have a couple XXV series seals waiting on hand after all......

The reed has to be leaking. Go in there and turn it over?

I already flipped the reed to no avail.Oh I'll get back on  it and figure it out----some day . Not a big deal as I have two good runner S-25 models,two MS 200T Stihls and another small Poulan to act as climbing saws .In addition to several light weight rear handles models that are real handy for bucket truck work .--I haven't flew a bucket for 2-3 years .

I don't think it's the key .I had the flywheel off,replaced both seals etc ,seemed okay.Switched carbs from a known good runner.switched coils ,no dice .

This is an early model with an aluminum muffler .Loads up badly,ignites the spent fuel ,poof fire in the hole .You'd be surprised how how far you can fling a fired up little chainsaw when that happens .

I've got three of these little saws .My original I bought new,Dayton has a steel muffler ,this on an aluminum muff and another with just an exhaust stub pipe .Two of three run just fine .

Interesting to note these things weigh about the same as Stihl O20AV top handle and cut at nearly the same speed maybe a tad faster .