Husqvarna 575xp Oiling problem.

[k_kindig11]

Ok so I recently got a husky 575xp with the clutch and oil pump torn out of it. The previous owner said it quit oiling so he took it apart and never got replacement parts and put it back together. The plastic pinion gear that drives the oil pump gear was shot so I order a new one, part number 537 20 78 which should be for the saw. I got the part, put it in the oil pump which was bolted down, then screwed down the clutch, which is where my problem starts. The clutch screws down so far onto the crank that it bottoms out against that plastic pinion gear. So now whenever the engine is turning, my oiler is turning (because of the clutch) and so is my clutch drum. They all are kind of bound together with that clutch being bottomed out against the plastic pinion gear. It therefore will also kill the engine if I engage the chain brake. I'm trying to figure out where the problem lies. The oil pump is part number 503 5214. I can't find a number on the clutch but it looks correct to me by looking at parts online. I thought at first maybe an incorrect part was on the saw. Does anyone know where the problem lies? I've not worked on Huskys before so it's kind of a new ballgame.

 

[k_kindig11]

Just wanted to add that I did put all the parts on the saw in correct order as they look in a diagram... oil pump bolted down, plastic pinion gear with "threads" engaged inside oil pump, clutch, drum, washer, e-clip.

 

[k_kindig11]

Manufacture date on the saw is 2006.
The worm wheel has one arm.
As far as flat washer, I'm going to say no becuase I don't have any washers in there (other than the one on the outside of the drum). Maybe it got lost...? And when you say washer over the seal, do you mean over the crank seal?
As far as the mating faces between the worm wheel and oil pump, they seam to match up. The oil pump has a larger groove for the thinner groove of the worm wheel to ride in. But when I put the two together they seem to fit flush together.

 

[k_kindig11]

I did notice in a diagram there is a sleeve (bushing), part number 537 20 58-01, which I don't have. Is this part necessary? Seems maybe like it presses into the ID of the oil pump worm? I'm still not sure that would be the reason that the clutch tightens down against the worm.

Also the parts diagram I'm looking at calls for a 503 5213 oil pump while mine is a 503 5214. Would this make a difference?

 

[wizardbrad]

I did notice in a diagram there is a sleeve (bushing), part number 537 20 58-01, which I don't have. Is this part necessary? Seems maybe like it presses into the ID of the oil pump worm? I'm still not sure that would be the reason that the clutch tightens down against the worm.

Also the parts diagram I'm looking at calls for a 503 5213 oil pump while mine is a 503 5214. Would this make a difference?

Hi. I know this is an old thread but did you find out the problem? I have a 576xp and in tge exact same posistion as you were in. I don't see that crank sleeve on the 576xp clutch diagram but it is on the crank diagram.