Jensen 530 roller speed adjustment.

[Gary Woodward]

Hi, we have just purchased a secondhand Jensen 530,on full revs the roller feed is flat out,and cannot be reduced with the valve knob,is it possible to remove the valve and strip down to check for any problems.?

[Mike Hill]

Just make sure the knob is actually turning the spindle on the valve block.

 

Take it off and try turning the spindle with pliers

[GarethM]

Usually whilst the engine is off, sometimes if it's clogged or seized the flow and pressure makes it hard to adjust 

[Gary Woodward]

3 hours ago, Mike Hill said:

Just make sure the knob is actually turning the spindle on the valve block.

 

Take it off and try turning the spindle with pliers

 

[Gary Woodward]

Thanks for the information,will give it a check it.at present its fully in and does unwind to full out,but no change in roller speed.👍

[Mike Hill]

I am not sure what valve block you have,on mine you can remove the adjuster knob,then get a spanner on the end of the adjuster barrel and unscrew it. From memory there is a O ring and then the flow rate plunger just comes out,there might be a spring on the end of that I think?

 

Anyhow it sounds like your adjuster is wide open so have a look into the cause of that. On the valve block end of the plunger  is a poppet ,it should be shut when its removed.

 

Its been ages since I had trouble with mine.

 

If you get stuck just open a Haynes Land Rover Service manual and say "Khris,Khris,Khris"three times  whilst holding a AF spanner in each had. He will appear like magic from your toolbox in a puff of Purple smoke.

 

Be warned though,the only way to get him back into your toolbox is to turn every motorised object you own upside down for one lunar cycle.

[Gary Woodward]

cheers for that info will check .

👍

[Gary Woodward]

On 03/12/2024 at 18:04, Gary Woodward said:

Thanks for  all the information, found that the knob on the  shaft, is on a brass taper which was not turning the shaft......freed shaft with mole grips, repositioned the knob tightened the nut and done, works a treat cheers all.