Saw has both 35084 and 35085 model numbers on saw - looking for replacement bar and chain, contacted sears and they said there is no substitute. Heard that this is made by MTD, looks like I'll have to go off brand for the part

Contact a small appliance repair shop and see if they can supply a cord that will be a suitable substitute.

I have found that the number one reason for a loose chain is from stretching, and that comes from heat or clearing small brush.

Heat being that it is not oiling properly and wears quicker, and the small brush answer (cutting lots of 1/2 in Buckthorn) tends to jerk the chain and manually stretches rather than a steady cut in a log which tends to be smoother.



With that said, yours might be something else. If I can ask a few question... When the saw was purchased, did you install the bar and chain? Second your level of experience - and is this your first saw. What I need to rule out is that the bar could be on wrong.



This saw was more than likely built by Poulan and it should have 2 nuts holding the bar. Does the bar loosen up? If the answer is no you might have a bar that is miss matched to the chain. What that means is that the chains "drivers", the tooth that is down in the bar could be a .050 and the bar could be a .063, hence the chain wobbles more that it should and might be more prone to jumping off.

Solution: Replace bar and chain and make sure they are a matched, lastly, always cut with a sharp chain.

Good luck,

kj

I put a new bar and chain on my craftsman 18" chainsaw because the chain keeps coming loose. I am still having the same problem, after running 10 seconds, the chain falls off.

According to www.searspartsdirect.com , this saw came with a 20" bar and a .325" pitch, .050" guage, 78 drive links chain.
On sears' website, plug in your model number, go to the handle section and your bar and chain are #130 and #131.
These items are also available aftermarket.
Oregon calls this a #33 or #20 chain, with 78 drive links.
Oregon offers a bar/chain combo part #106874

It is a good idea to inspect the drive teeth on the sprocket of the saw. If they are worn, this is the perfect time to replace the sprocket.

Good luck!

It should, I have been on this earth to long for a definate answer. Both saws have 40 drive links, are 3/8s, and a gauge of 0.050. Please verify my findings here:
Oregon Bar & Chain Selector
http://www.oregonchain.com/pro/lookups/selguide.aspx?BusId=OCS&SellReg=USA&LangId=ENG

Have you contacted a local saw shop? With your chain as a pattern they can make a replacement in couple of minutes. Inquire by phone about a price you may be pleasantly surprised. Give them Oregon number 91VG040G (low kickback, most likely what your saw is fitted with). If you feel adept you might try a slightly more agressive chain but the odds of kick back increase. HTH
Lou

Many time the big chain stores (like Sears, Wal Mart, etc.) will have products made to their own specs (re:cheaper), which makes getting replacement parts difficult at best and impossible at worst. Another reason they do this is so that you won't be able to find the exact same model elsewhere at a better price and force them to match or beat it. It's entirely possible that if you can't find the longer bar & chain at Sears, you won't find it anywhere.

Your friendly neighborhood chainsaw shop can fabricate one in about 5 minutes. Take your existing chain for use as pattern.

McCulloch.com
http://www.ordertree.com/modelinfo/MCC/11-600038-12-EAGER-******-2316-SUPER-06%2F93-to-05%2F96-IPL-211318/139.11-600038-12-EAGER-******-2316-SUPER-06%2F93-to-05%2F96-IPL-211318.1.59.1.html
If original 18" bar.
part number(pn) MCC 21927533

Oregon Bar & Chain Selector (again original 18" bar)
http://www.oregonchain.com/commonpgm/Selguide_Selctmfg.asp?BusId=OCS&SellReg=USA&LangId=ENG&ShowRem=Y&ShowAnsi=Y&ShowQuality=Y&ShowCombo=Y&usertype=OCC
Your saw with 18" bar returns
Oregon pn 91VG060G.
This can be easily crossed to other manufacturers chain. You might consider a more aggressive chain (dependent on your level of expertise). HTH
Lou

please tell us about the make(manufacturing company) of that machine,

go to ebay post to want it now