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Post by precertvideo on May 1, 2012 14:08:39 GMT -5
Have officially joined the 550 club. Bit of a sorry state-screws missing/loose, clutch & cover missing... Really needs a full rebuild/restoration, and will begin with a teardown & full list of missing parts. Will update here as progress progresses. Jonathan Spend list: £10 Saw £7 black spray paint £7 lacquer spray £22 NOS clutch cover complete £40 bearings & seals £25 misc screws £7 vibration mount ------------ £118 total so far...... To spend £64 Oregon Powermatch 36" bar 363RNDD009 £32 Oregon #59CJ square ground .404" .063" chain ------------ £96  |
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Post by MCS on May 1, 2012 14:16:32 GMT -5
Doesn't look all that bad, keep us posted..
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Post by precertvideo on May 1, 2012 15:31:31 GMT -5
Oh yeah, forgot to mention that it cost £10, about $15!!! Thus allowing £££ for the renovation.
Jonathan
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Post by tommyhnavix on May 3, 2012 11:29:14 GMT -5
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Post by precertvideo on May 6, 2012 14:30:37 GMT -5
Thankyou both. I have the saw stripped down into many boxes-neatly labeled of course! Am grateful for someone else doing the sameThankfully the piston & bore appear in good order. Some light pitting on the crankshaft where one main bearing has sat for a while, but not too bad. There's nothing serious missing, mostly screws. Fuel/oil oil lines rotten. The oil tank is full of sawdust gunge! There is a hole in the top corner of the gas tank (how the do you do that?). Not sure how I'll repair that yet-Anyone confirm is is Aluminium and not magnesium (before I set it on fire). Should both gaps on the piston rings be aligned, or set at opposite sides of the piston? Mine are both in the same place, which seems silly. Have begun stripping & prepping for painting. |
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Post by MCS on May 6, 2012 18:10:58 GMT -5
Should both gaps on the piston rings be aligned, or set at opposite sides of the piston? Mine are both in the same place, which seems silly. You car mechanic all think the same  Two-cycle engines have to keep the ring ends from passing any port or guess what would happen  The piston should have a pin of some sort to keep the rings from rotating and when you mount the piston on the rod, make sure you have this pin orientated correctly with the cylinder wall. And BTW, a typical ring end gap is .070" ;D |
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Post by precertvideo on May 7, 2012 13:16:59 GMT -5
You car mechanic all think the same  Funny you'd say that - my dad is a car mechanic. There is a locating pin for each ring and an "line up with exhaust" mark on piston. Jonathan |
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Post by precertvideo on May 7, 2012 15:49:55 GMT -5
There is a hole in the top corner of the gas tank (how the do you do that?). Not sure how I'll repair that yet-Anyone confirm is is Aluminium and not magnesium (before I set it on fire). The tank is made from magnesium, so will refrain from getting it too hot, though big pieces are less likely to burn. Would like to braze/weld it rather than glue it. Apparently one can tell by putting a drop of normal fish-&-chip vinegar on a fresh surface & if it bubbles it's magnesium-aluminium wont have any reaction. |
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Post by precertvideo on May 13, 2012 12:50:48 GMT -5
Today tried to fill hole with "special" alumium-type brazing rod (Google HTS-2000 for type of rod") which works well on aluminium. Unfortunately the melting point of the tank must be very close to the rod & I ended up melting the hole a little bit bigger, not much though luckily. Guess I'll epoxy it up instead, and long term look for a new one.
Jonathan
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Post by MCS on May 13, 2012 17:23:30 GMT -5
I had the same problem using aluminum brazing rods. They seem OK on aluminum but the magnesium has a lower melting point and I couldn't get them to work. I don't have gas for my wire feed but my try doing some later this year.
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Post by precertvideo on May 27, 2012 12:24:35 GMT -5
Alright! Back together this morning & after a lot of huffing & puffing it burst into life. Holy cow this has some power (I've only used small "consumer" saws up till now.) Just waiting for a few small bits before can mount a bar, and will have to go back & Loctite some screws as quite a few came loose after only a couple of minutes running.
Days like this make it all worthwhile ;D
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