medroberts

Hi Waterbuoy, Yes I have done the rakers two filings ago and no vibration after this. Thanks for the question.

Hi Adw, I have cleaned the saw before stripping it down. I am an agricultural engineer by trade so I know how important cleanliness is . Thankyou for your further thoughts . I will check this out and update. Regards, Med

Hi Haironyourchest, That was my very first thought. And although the chain is 50 % down there is no teeth missing. Regards, Med

Guys, Finally got the saw to bits and as you can see from the attachments the crankshaft bearing races are intact on both sides. The crankshaft rotates smoothly. I have also removed the exhaust and inspected both piston/ring and cylinder. I can see no issues in there either. The drive clutch and needle support bearing are in good order also. The sugihara bar sprocket tip is free to rotate. Not sure why I am getting this vibration in the cut ? The deflector limiter bush is worn and I will replace when I order parts to rebuild. But I cannot reason why this would cause the saw to have a vibration whilst cutting.... Your thoughts please... Thanks in advance for the assistance

Hi ADW, Thanks for your reply. I have fitted a new drive sprocket not that long ago. I haven't run the saw after noticing this vibration, for fear of causing more damage. But seemed to start and idle correctly. I only noticed the vibration whilst under load i.e in the cut. I have looked at the clutch and all return springs are intact ( never had to replace any since new !) Would I be able to feel play in the crank bearings if the races had failed ? If I were to take off the clutch and check for axial play ? I will take a look in the spark arrestor gauze as you suggest, Rgds, Med

Guys, Whilst using my husky 560 yesterday on firewood, I noticed a strange vibration whilst cutting .I have owned the saw from new and have only ever used husky synthetic 2 stroke oil in it. Saw will start and run fine. I have removed the bar and cannot see any obvious reason for this issue. I can see that these suffer from failure of the crankshaft bearings nylon races..... Could this possibly be the cause of the vibration ? I can see a pressure test of the crankcase could reveal the crank seals leaking , and thus bearing failure ? Unfortunately I don't have a hand pressure/vacuum pump. A question to Spud (Steve), could you carry out this test for me of the crank bearings ? If I send you over the saw ? Ps The 395xp you ported for me is still going strong ..... Regards, Med Roberts

Thanks Stubby, Will have to contact him and hope he sees my side of the story. The only other observation is that the oiling hole in the sugi bar looks smaller than in the husky bar( see previous pics) even though its location looks to be good. Will let you know how I get on Thanks , Med

Guys , Just to update. Sthil () not getting any were with my sugihara bar oiling issue. This is despite fitting a new rim sprocket and oil feed/delivery pipe. Tried it again today and bar went hot and chain very slack When I refit the old Husqvarna 18" bar , I do not have the same issue. My 395xp fitted with the sugi 28" bar , I have had no issues , despite making some heavy cuts. In fact its like new. I am afraid if approach Rob @ chainsawbars, he is going to blame lack of oil ! even though I had only purchased it last week with new chain. Don't know what I can do next, as I cannot see why the bar should not be getting enough oil. Please help....................Med

Stubby, Put the saw back together and fitted the old husky 18" bar. Ran it against a cut log but very little oil pattern on the log face. But a lot of oil around were the bar clamps to the saw. I am now thinking that the seal of the rubber hose to bar is not sealing properly As when I run my finger across this area , there seems part of the rubber feed pipe seal that is flush and not proud possibly causing the oil not to be sent down the bar rail ? I am going to order a replacement oil pipe assembly and also a new sprocket, will update when fitted . Many thanks, Med

Guys, just been studying this again. I have overlayed the bar pad onto both bars as I can see a witness mark showing the position that the bars are clamped in. What are your thoughts ? Do you think that wear on the rim sprocket is the cause ? I answer to angry squirrel, the plastic pump drive is showing NO signs of wear both were the drive is taken from on the rim drive and no wear on the worm drive remarkably. I don’t know we’re to look next if I am honest? Any further help/ ideas appreciated. Thanks, Med

Adw, I will try this tomorrow night after work in case there is a mis-match between oil ways. I have had your manual, thank you very much for that and your help, much appreciated . This is a very odd issue Regards, Med Roberts

Hi guys, Firstly thanks for everybody’s help. I have just been able to strip the saw and cannot see anything obvious? The Filter on the oil pick up pipe is not plugged , the oil line to and from the pump is clear. The mounting bolts for the oil pump were tight. The worm drive hasn’t worn and the pump is free to turn by hand.Here are some pics. Basically I cannot see any issues,but IAm no expert on saws unlike MF tractors( Agricultural engineer by trade). Can somebody point out what IAm missing please ?Thanks , Med

ADW, sensible advise! I have PM 'd you, with your kind offer. Will update when I can get a minute.Thanks , Med

Guys, Thanks for the assistance. Should I order the following parts from L &S : No 6 - worm drive, No-7 oil pump assembly and No-14 mounting screws ? Would these be OEM as never used them before ? Med.

Adw, pic of Clutch type you asked for. Thank you, Med