MF 165 Lift Arms creep up - CAV gasket leak

[Lesoldat]

I’m new to tractor ownership. Bought an older tractor (year?… late 60s?). MF 165

At idle (low rpm) lift arms go up/down as they should when I raise/lower the lever.

However, while lever is in the down position if I rev the engine to higher RPMs the left arms creeeep up slowly … all the way up.

A previous owner put a hydraulic diverter (maybe wrong term?) that sits right under the seat. Goes to a single hose out the back of the tractor. When that diverter is turned to “rear hydraulic position” the lift arm lever does not activate the lift arms (as they shouldn’t), but the lift arms DO NOT creep up at higher RPMs.

Is there something in that diverted box that’s causing the problem?

Second issue: slight leak from “side gasket” in the injector pump. Can I replace this by simply pulling off plate, replacing gasket, installing plate? Any issues with the timing (I heard importing timing alignment statements on some rebuild videos). Not my pump, of course - stock photo from internet

Thank you in advance for your help.

 

[thepumpguysc]

Simple fix.. only thing to watch out for is: the pump WILL be full of fuel so open slowly..
That cork gskt is pretty thick so choose your substitute carefully..as the screws might bottom in the holes before you get the cover tight..
If u would like a new cork gasket, send me a prvt msg w your address and I’ll shoot u one.. gotta go to po tomorrow anyway..

 

[TractorTech]

The blue circle in picture is diff lock.

Don't know about your lift problems as I can't see the diverter real well

 

[Harry in Ky]

The diverter is not causing the lift arm problem you're having. That's coming from the pump's control valve, and/or related internal linkage. I have some ideas on how you can narrow that down. I can explain in more detail if you're interested.

 

[Lesoldat]

I’m interested, absolutely! I need to know if this is something I can try and tackle on my own, or if I need to haul it to a shop.

Thank you!

 

[Lesoldat]

The diverter is not causing the lift arm problem you're having. That's coming from the pump's control valve, and/or related internal linkage. I have some ideas on how you can narrow that down. I can explain in more detail if you're interested.

 

[Lesoldat]

I’m interested, absolutely! I need to know if this is something I can try and tackle on my own, or if I need to haul it to a shop.

Thank you!

 

[Harry in Ky]

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