075 not oiling

[Rough Hewn]

Hi guys. I'm restoring an 075av 1978/79.

The only problem is the automatic oil pump isn't working.

Bought a new stihl oil pump and worm gear. Still no oil.

The manual pump works fine. I've looked in the oil tank and there appears to be one pickup with filter going to the manual pump and a small black tube laying on the bottom of the tank. Spent a lot of time and money: piston stop, clutch spanner, bleeding knuckles etc...

It's doing my nut.

Any experienced mech heads with advice?

Thanks

[spudulike]

Hi guys. I'm restoring an 075av 1978/79.

The only problem is the automatic oil pump isn't working.

Bought a new stihl oil pump and worm gear. Still no oil.

The manual pump works fine. I've looked in the oil tank and there appears to be one pickup with filter going to the manual pump and a small black tube laying on the bottom of the tank. Spent a lot of time and money: piston stop, clutch spanner, bleeding knuckles etc...

It's doing my nut.

Any experienced mech heads with advice?

Thanks

 

Not got much experience on 075 oilers but.......

 

1) Check the bar oiler hole is free

2) flush the tank out with fuel and make sure there is no bio oil gloop at the bottom.

3)Extract the oil pickup pipe and filter and make sure it is free flowing and the filter is free of gloop.

4) make sure the pinion is in good order and the gear is free to turn and the oil pump is the same

5) Make sure the oil-way to the bar mount is free of gloop and woodchip.

6) Make sure the oil tank breather is clear and allows air in to the tank.

 

Just make sure the oiler pinion and pump are in a condition that the drive picks up from the rotation of the crankshaft and spins freely.

 

You can also try a thinned down oil mix but is really ever only needed in damn cold conditions or if there is a blockage.

[Rough Hewn]

Thanks Spud. Everything you've written makes sense.

The problem is : the black tube at the bottom of the oil tank was a twig.

The manual oil pump works fine. It's the same pickup for the automatic pump.

I've just put a new worm gear and oil pump (stihl).

Still no oil. I even took an 051 worm and pump which work and tried them:(

I'm wondering if there's a blockage after the pickup, before the oil pump?

On a brighter note, I'm curious about this whole woods porting. Can you pm me some details? Got an ms440 2006 for cross cutting.

Thanks

[spudulike]

Looked at the IPL and there is a pump with a gear that runs off the worm drive and cant see how that picks up the oil. It looks like it isn't connected to the pickup pipe that looks like it feeds the manual pump.

 

Others will know more about these machines than I as I haven't stripped on to date. I would pull the pump with the gear shaft part code 1111 007 1023 and see if any oil has gone through it.