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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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CAV pump still dripping on 1850

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alberta dave

07-06-2020 18:07:07




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I put a new seal kit on my spare CAV/1850 fuel pump a while back and put it to use this weekend. I am getting a drip every 30 seconds or so coming out of the circular breather or what ever that is on the front side of the fuel pump. The pump I took off was leaking from every where so it is waaaay better but I cant seem to get the drip to stop. Even changed the round thing out with one from another tractor that was not leaking before, and it still dripped the same. The little steel ball is definitely where it should be. Anyone have a thought as to why I am getting a drip from the vent? Drip does not seem to increase when engine speed is increased and tractor is running fine.

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Dieseltech

07-06-2020 19:55:32




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 Re: CAV pump still dripping on 1850 in reply to alberta dave, 07-06-2020 18:07:07  
Those dampeners do start leaking with high hours, pumps I repair that dampener is removed. Pump will work fine without it, not sure why Perkins thought it was needed in the first place..



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alberta dave

07-06-2020 21:48:50




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 Re: CAV pump still dripping on 1850 in reply to Dieseltech, 07-06-2020 19:55:32  
I was curious about it being necessary because I have seen Massey tractors without the round thingy on the pump. You will still need the stem part to hold the rest of the part on the body. Does the round part unthread from the stem?



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Dieseltech

07-07-2020 03:50:43




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 Re: CAV pump still dripping on 1850 in reply to alberta dave, 07-06-2020 21:48:50  
Nope, it's a brazed one piece assembly.



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rrlund

07-07-2020 03:16:04




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 Re: CAV pump still dripping on 1850 in reply to alberta dave, 07-06-2020 21:48:50  
It just screws out. Be careful not to loose that little ball behind it. Al Baker sent me one of those plugs last year for my White 2-105. I put that in and the leak stopped.



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alberta dave

07-07-2020 17:47:46




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 Re: CAV pump still dripping on 1850 in reply to rrlund, 07-07-2020 03:16:04  
I will go to the local pump shop we’re I bought the kit later this week and see if they can sell me a plug to seal the pump up w/o the damper. Thanks for the advice.



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