090 bar oil pump

[JimE]

Hi guys, got an 090 that isnt oiling the bar.

Works OK on the manual pump but the oil is very slow coming out in normal use.

Suspect the oil pump.

How do you get to it? Engine out?

 

Thanks

Jim

[Eddy_t]

Oh boy you're in for a treat! Empty the oil tank, remove the screw around it, pull the casing off

Undo the 3 screws holding the pump on, that'll reveal the pump diaphragm, it'll be split!

Now for the fun bit

Remove the clip and washer

Remove the ring, cylinder bearings and spring, then a washer, and then another ring, springs and bearings, pull diaphragm out, including the arm, fit a new one and remember to fit the plastic washer on! Reassembly should take about 1-3 hours as you have to fit springs, then bearings, compress them and slide the ring into place (they have a lug), washer, springs, bearings and the next ring, washer, clip, refit to saw and reinstall manual pump, refit casing and away you go it sounds simple, but, well you'll find out!

 

 

 

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[Big Beech]

Glad mine works then!!!!

[Eddy_t]

Glad mine works then!!!!

 

Cheers simon! Gotta fit new carb kit and fuel line to mine now! PITA! Getting the carb off is bad enough

 

 

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[agg221]

Cheers simon! Gotta fit new carb kit and fuel line to mine now! PITA! Getting the carb off is bad enough

 

 

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I don't mind doing the carbs on these. Everything is big and easy to work on - much less fiddly to get on and off than on the 026.

 

Alec

[Eddy_t]

I don't mind doing the carbs on these. Everything is big and easy to work on - much less fiddly to get on and off than on the 026.

 

Alec

 

Oh yes, whilst it's off I'll also replace the oil pump impulse line, but the hard part is getting the carb off its mountings (and back on)

 

 

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[JimE]

Top man, thanks very much for that! Pictures are ace

Might put that off for today!!

[Eddy_t]

Top man, thanks very much for that! Pictures are ace

Might put that off for today!!

 

Haha send it to rich to repair, I would but I'm far, far, far too far away

 

 

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[Eddy_t]

Oh forgot to say 1106 640 3100 is the pump diaphragm part number

 

 

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[JimE]

I just need to wait until there are no womenfolk about and I'll sit and do it one evening infront of the fire