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Author Topic: hand primer pump  (Read 9100 times)

Haymaker

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Re: hand primer pump
« Reply #8 on: December 04, 2014, 07:54:25 PM »
Yes I believe 5/16" fuel line would work see the other post with pics. I looked at the tanks today and no they are not above the primary filter unless maybe if they're right full.  I was thinking of another tractor I have.  But anyway I've never had a issue bleeding the fuel system its pretty straight forward on these old things.  On some machines I've blown air in the tank with an air compressor plugging the filler hole with a rag (be carefull not to blow too hard!) till fuel flows out by the filters. 
  • Tractors- '93 Belarus 825 with loader and others...

imperial1960

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Re: hand primer pump
« Reply #7 on: December 03, 2014, 05:35:16 PM »
Got you on cracking lines I have decided to install a low pressure electric fuel pump near the first fuel filter on the right side.Like I have said the plastic (russian)fuel line is an odd size plus plastic is brittle.Haymaker would you know if the banjo fitting at top of fuel filter with the factory band (cut band off reuse banjo fitting)  do you think it would let the 3/8 line go over the fitting?
Belarus 562 4x4 russian loader bucket

Haymaker

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Re: hand primer pump
« Reply #6 on: December 03, 2014, 12:07:15 AM »
Well maybe the seals in the  hand pump are dried up as it should only take a few minutes to pump fuel in through the filters. Once all the air is out (filters are full) then you close off the bleed screws give the hand pump a few more pumps, tighten it closed and try and start it. You'll probably have to crack the injector lines to bleed air out of there too.
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imperial1960

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Re: hand primer pump
« Reply #5 on: December 02, 2014, 10:37:39 PM »
Yes bleeding fuel but when changing fuel filters then pumping hand pump takes forever to bleed the system.This is why I though I would go electric pump but only problem is plastic fuel lines are metric 5/16 to small while 3/8 to big going into pipe thread.
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Haymaker

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Re: hand primer pump
« Reply #4 on: December 02, 2014, 10:23:09 PM »
Thanks for the reply haymaker Just wondering if an inline electric fuel pump would work better?What im not sure about is there a check valve in the pump and would a low pressure inline pump do the job?

Not sure what you're trying to do bleed the system??  The fuel tanks are higher then the pump/filters so the fuel should flow to the engine to the primary filter/sediment bowl on the right side not??   I'd have to look at mine again.
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imperial1960

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Re: hand primer pump
« Reply #3 on: December 02, 2014, 09:29:37 PM »
Thanks for the reply haymaker Just wondering if an inline electric fuel pump would work better?What im not sure about is there a check valve in the pump and would a low pressure inline pump do the job?
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Haymaker

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Re: hand primer pump
« Reply #2 on: December 02, 2014, 07:59:17 PM »
Yes its not uncommon for them to leak when you unscrew it and pump, my other tractors do it too.  I wouldn't be surprise if Belarus did sell just the o rings for the pump but you can get the whole hand pump for 40 bucks I think.  On my old Case it was leaking when it was screwed down tight, just old I guess.  That time I just replaced the hand pump.
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imperial1960

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hand primer pump
« Reply #1 on: December 02, 2014, 06:38:07 PM »
Is normal for the hand pump to leak fuel when pumping? Been thinking about replacing H/P can someone tell me if pump can be rebuilt or just replace it?
Belarus 562 4x4 russian loader bucket