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Turns out one of the saws was a 2101... it's the one I thought had a blown bottom end.. turns out the skirt of the jug broke off as well as a mounting ear and it got nicely munched up in there.. most everything is toast, though casing and crank, and tank may be salvageable.
 
It also turns out that one of the saws was a 285CD.. it had me baffled for a bit when the bore sizes were different... I would not want to run a 285.. way too heavy for the displacement!.. the tags are missing of nearly all the saws, so I can only figure out what they are after I tear them down.. The 285 was the one that was full of crud and I broke several fins off since it was so seized up... it's a shame they left the thing outside with no spark plug for so long, not a scuff on the walls, but the nikasil is totally peeling off the top of the cylinder where the aluminum corroded.. very much like cancer rust on a vehicle.

I'm thinking the 2101 died from bad tuning as well as an impact that broke the ear.. the piston had REALLY BAD detonation pitting, it still had the governed carb, and they probably leaned it out too much trying to get more RPM. Casings are toast too from the cylinder skirt getting jammed up between the crank and the case I think
 
Well, I took the 394 apart tonight, did some mild port work, the rings were fairly worn, and I had a set that weren't new, but better.. it blew 150 PSI before I did anything, and after cutting the base for a .022" squish it was about 165... I think with better rings it would be about 170. Runs nice, cylinder and piston were in good shape without a single scratch on them, but the saw has a lot of stripped mounts.. 2 of the 4 recoil screws had to get retapped, one of the bucking spike holes, and probably a few more I'm not remembering. Had to splice the kill switch wire too. This thing was a professionally used unit for a long time, but I do think a little less of my neighbor's skills after looking at this saw.. it had a 404 chain on a 375 nosed bar... the drive sprocket was 404 though. I'm not going to run it that way, and I'm leaving the chain off when I give it back.. I don't have a spare .375 rim unless I pilfer one off my saws for testing.. it may happen.. I'll see.

I found the 394 much more of a pain to work on than the 2 series... a lot of stuff needs to be taken off to get at other stuff... it wasn't terrible, just not quite as easy.

Maybe in the coming week I'll fix up one of the 2100's too.
 
OK, I went and fiddled with that big tree that came down today.. broke a couple chains trying to pull it down until I succumbed and went and got the 1/2" chain.. Little JD350 sure had to grunt to move it, but I got it down into a position that made it safe to work on.. that thing is DARNED heavy.. a 1 1/2" thick cookie weighs about 40 lbs, so imagine what a 60' section weighs, with a root ball.. my math gets me to darned close to 20,000 lbs!

Unfortunately when the tree fell the rootball kicked a massive amount of sand onto the top side of the tree, so I had a junk chain and made my first cut with that and the 394... for a HORRID chain it worked alright, then I cut 6" of bark off so I could cut the cookies.

The Manhattan project took 82 seconds to make the cut, though 32" 111dl bar didn't quite make it all the way through, and a very quick pass down the backside.

Then I swapped the bar and chain onto the ported 394, it was VERY tight to get it on and there's significantly less 'working length' because it has west coast dogs on it, it took 66 seconds.

I think both saws would have done much better with lower rakers, and the Manhattan project would probably do better with a 7 pin sprocket instead of the 8 tooth spur drive... the thing is I don't want to touch this new chain and suddenly make it go croooked.

That horrid chain I was talking about.. it must be OLD, from before I knew how to sharpen!!!.. there was virtually NO tooth left on it, but the rakers were untouched! I think it cut by friction. I took about 10 strokes with a flat file off them, didn't bother touching up the teeth, it did good enough for what I needed doing.

I have a weird carb problem with the 394, probably the metering lever set too high.. I can't lean down the H screw enough.. it's seated and that is about perfect... I guess I ought to take it apart and check it.


I'll upload the videos next chance I get
 
OK, been working on loading up that tree... the little JD350 had it's hands full with it... I had a 12 foot section from halfway up the tree and that was a good load.. I managed to get it on the old Chevy 1 ton (12' deck).. I put it down, and then it rolled to the other side of the truck when I pulled the chain out from under it... it darned near flipped the truck over... so then I went and got a 14' piece that was bigger in diameter, and THAT was the limit for the JD350.. I had to lift from the back side of the bucket to not tilt forward, I got it on the truck too, and for the first time I think I bottomed out the suspension on the truck.. and we've had 10,000 lb loads on it before... that is one HEAVY tree!
 
OK, you want some vids?

Here's the mildly ported 394


And here's the Manhattan project, same bar, chain, and sprocket ratio, though it bit in a little further on the first pass because it has shorter bucking spikes..


I think both saws could have benefited from slightly more aggressive rakers, but I'm not going to screw with a new chain that cuts perfectly straight!

Of the pair of 2100's I had in the shop, one if not both have cracked handles and leak fuel, both had moderate ring wear, and slightly less than perfect pistons, with good cylinders. Set the squish to .022" with a base gasket, the one I put together has 180 lbs compression with the somewhat worn rings.. I had to do a lot of work to the recoil to make it accept the pulling required.

I've posted this in it's own thread, but I got 2 more 2100's, a 181 basketcase (a basket with no bottom, it's missing most of the parts), and a pair of stihls (038? and 064) They all have spark (except the 181), and I think I can make a few runners out of them.
20151025_163201sm.jpg



I'm getting good at working on the 2100's.. completely assembled, I got the top ends off 2 saws in 20 minutes, no power tools. They're pretty nice to work on :)
 
Actually
...so far I like working on the 394...just like a big 350 :)

Just remember to attach the carb to the cylinder first before putting the jug down

:)
Yup... it is much easier that way for sure! I was able to get the carb on without removing the cylinder though.
the 2100 is definitely easier to work on than the 394 though.. but they're both far better than an 056
 
OK, so the 064 got taken apart and ported.. I still hate working on Stihls! Squish is .022", I 'minifingered' the transfers and set the exhaust to 101*, left the intake alone as far as timing goes but widened it a fair bit.

The case gasket on the oil tank blew out because the bolts had backed off.. my fix isn't perfect, but it'll keep some oil in it. I got a bar and chain on it and a new clutch drum.. the splines were worn completely off the old one!
I got a free bar (well about 5 or 6 of them, from 20-32" and a mix of 404 and 375 sprocket noses).. one is a husky bar.

The 038 started on the FIRST pull!!.. it cacked out though from the broken coil wire that was arcing out.

The 2100's I have need fuel lines, after that I think I got a couple runners.
 
OK, so the 064 got taken apart and ported.. I still hate working on Stihls! Squish is .022", I 'minifingered' the transfers and set the exhaust to 101*, left the intake alone as far as timing goes but widened it a fair bit.

The case gasket on the oil tank blew out because the bolts had backed off.. my fix isn't perfect, but it'll keep some oil in it. I got a bar and chain on it and a new clutch drum.. the splines were worn completely off the old one!
I got a free bar (well about 5 or 6 of them, from 20-32" and a mix of 404 and 375 sprocket noses).. one is a husky bar.

The 038 started on the FIRST pull!!.. it cacked out though from the broken coil wire that was arcing out.

The 2100's I have need fuel lines, after that I think I got a couple runners.
Effrom I recall it was the l65 clutch we discused I have the 61 clutch bell and cover washer
also if theres anything else let me know when you arrive at trents 767 3168 ... Keith
 
Well,.. I've been starting to work on the VGT turbo for the truck once again... so far so good, I've got it communicating with the controller, and it seems to be a later model turbo which has a couple nice features in it's software which will come in handy. I need to make a few spacers, and then I might test mount it... perhaps I'll get it done tonight or tomorrow... I'm itchin' to see what it can do. I've already got the oil plumbing figured, and it won't take much to do the intercooler piping, the exhaust will be a little trickier, not hard, just time consuming.. and then I have to splice into the coolant lines. I'll also have to figure out where I want to mount the control box, and make an enclosure (I have an old inverter case that'll do the trick).
 
Well,.. I've been starting to work on the VGT turbo for the truck once again... so far so good, I've got it communicating with the controller, and it seems to be a later model turbo which has a couple nice features in it's software which will come in handy. I need to make a few spacers, and then I might test mount it... perhaps I'll get it done tonight or tomorrow... I'm itchin' to see what it can do. I've already got the oil plumbing figured, and it won't take much to do the intercooler piping, the exhaust will be a little trickier, not hard, just time consuming.. and then I have to splice into the coolant lines. I'll also have to figure out where I want to mount the control box, and make an enclosure (I have an old inverter case that'll do the trick).
howd Trent like the 480? Ive got a project saw for you 372,just got it good cylinder poor piston
Keith
 
The chain on the 480 was junk.. it was sharpened on a chain grinder and heated.. it's so hard a file won't touch it now.. otherwise it runs good... had to fiddle with the chain brake a little, there's a spring in there that might be broken or weak, and it wasn't holding it in the released position very well... We just HAD to flip the kill switch around so it's like any other saw, both of us pulled on it a few times before we realized the switch was backwards from what we're used to.

Keep that 372 around.. if I come over that way sometime in the spring I'll take a look at it :)
 
The chain on the 480 was junk.. it was sharpened on a chain grinder and heated.. it's so hard a file won't touch it now.. otherwise it runs good... had to fiddle with the chain brake a little, there's a spring in there that might be broken or weak, and it wasn't holding it in the released position very well... We just HAD to flip the kill switch around so it's like any other saw, both of us pulled on it a few times before we realized the switch was backwards from what we're used to.

Keep that 372 around.. if I come over that way sometime in the spring I'll take a look at it :)
Effrom picked up a parts 480 cd for 30 bucks ,its a runner. P&C look good but its lower on comp
sem ignitions are hard to come by and 24 in bar and new chisel chain are worth the deal alone
 
Nice


Meanwhile I got the new VGT turbo on the truck!.. so far so good, I have to do some work on tuning, but it looks promising so far :)
 
I'm expecting drivability improvements, and I should be capable of 500hp, but my goal is a solid 400
 

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