TE20 P3 Conversion - winter project

H200GT

Member
Location
NORTH WALES
Looks like QTP do a kit that would allow me to fit the later 35/135 oil pump to my P3 - as far as I can see I would only modification I would have to do is to remove the old mesh strainer that I have on my sump (item 7) , replacing it with the more modern strainer pipe that is attached to the suction pipe (item 8)

1614066922617.png
 

MrNoo

Member
Arable Farmer
Location
Cirencester
Re oil, I would keep with 20-50, anything thinner just seems to loose pressure when nice and warm. Have been using 20-50 in all my match ploughing Fergies and they hold good pressure hot or cold now. I wouldnt use anything else.
Re spring pressure I am not overly familiar with the P3 pump more used to the 3 pot 35 engine but you can just pack the spring, we used to do it on the mini engines, put a washer or two behind it increases the spring pressure.
Recon your honed bores will be perfectly fine
 

H200GT

Member
Location
NORTH WALES
Re oil, I would keep with 20-50, anything thinner just seems to loose pressure when nice and warm. Have been using 20-50 in all my match ploughing Fergies and they hold good pressure hot or cold now. I wouldnt use anything else.
Re spring pressure I am not overly familiar with the P3 pump more used to the 3 pot 35 engine but you can just pack the spring, we used to do it on the mini engines, put a washer or two behind it increases the spring pressure.
Recon your honed bores will be perfectly fine
The pump in my P3 is almost identical, but its not quite the same. Incidentally DiPerk did come back to me and have confirmed that the exact pump is discontinued, but that a later A3.152 pump will fit, but that I will have to modify the suction & delivery and pipes like i had already figured out. I have the kit on on order so hopefully if it arrives I'll have ago at it over the weekend. If I can't get the new pump to fit then I'll go about testing the old relief valve with a compressed air set up and re-set the pressure relief valve as you described.
 

H200GT

Member
Location
NORTH WALES
Update

The pump fits as expected, however the delivery pipe doesn't ☹

The original pump used 1/2 pipes, the a3.152 uses 5/8 pipes and the union nut that screws into the block is of course a different size.

I had a play with the old pump, and the relief valve was indeed weak and I have now adjusted that to 60psi as per specifications. However I would still much rather fit the new pump if possible now its apart again.

So it seems what I need is some sort of 1/2bsp male to 5/8bsp female adaptor that I can fit to the block to take the 5/8 pipe, there is room to do something there by shortening the pipe. Or alternatively I could braze some of the old 1/2 pipe to the 5/8 pipe, the 1/2 fits snuggly into the 5/8 pipe, but I’d prefer a proper fitting. Or any other suggestions welcome?

Some photos attached that shows the difference between both pumps
 

Attachments

TheTallGuy

Member
Location
Cambridgeshire
Update

The pump fits as expected, however the delivery pipe doesn't ☹

The original pump used 1/2 pipes, the a3.152 uses 5/8 pipes and the union nut that screws into the block is of course a different size.

I had a play with the old pump, and the relief valve was indeed weak and I have now adjusted that to 60psi as per specifications. However I would still much rather fit the new pump if possible now its apart again.

So it seems what I need is some sort of 1/2bsp male to 5/8bsp female adaptor that I can fit to the block to take the 5/8 pipe, there is room to do something there by shortening the pipe. Or alternatively I could braze some of the old 1/2 pipe to the 5/8 pipe, the 1/2 fits snuggly into the 5/8 pipe, but I’d prefer a proper fitting. Or any other suggestions welcome?

Some photos attached that shows the difference between both pumps
Something like this maybe?
https://flowtech.co.uk/product/KRRB10-8

Edit.... Wrong link!
https://flowtech.co.uk/category/section-1-hydraulics/kr500-hydraulic-adaptors-steel/straights-kr500/unequal-bspp-male-x-bspp-male-60-cone
 

H200GT

Member
Location
NORTH WALES
Yes, thats what i am thinking, 5/8-1/2bsp adapter.

5/8 with a dowty washer into the pump, then I could trim my existing 1/2 pipe down and fit it with a new olive onto the 1/2bsp thread. I just need to ensure it all fits up and it doesn’t foul on the crank before go mad with the hacksaw
 

Guide your way through spring agronomy decisions

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The incessant and extreme wet conditions are now presenting huge challenges for every farm’s spring agronomy and cropping decisions.

Plans are being urgently reevaluated and rejigged to set priorities for treatment, with a watchful eye on deadlines for timely spring crop establishment when a window allows. And all against a backdrop of potential damage to soil structure to fields from traveling in waterlogged conditions.

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Lessons learned from last year have proved invaluable, with the latest Syngenta Spring Guide giving an insight into some of the tips and ideas to help with this season’s decisions...
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