When I press the priming pump on my inline 3b injection pump a black sludge comes out around the thing you press down is that normal?
3b priming
- Thread starter 1986bj75
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I believe excess diesel comes out of there.
Keep priming it until it goes away? Maybe a more experienced person can chime in here.
Keep priming it until it goes away? Maybe a more experienced person can chime in here.
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- #3
Thank I will have to look into it more
Its time to replace the priming pump.. they dont last for ever and shouldnt leak - diesel coming out means air can go in. They are readily available from diesel shops. Source a Bosch unit preferably.
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- #5
Ok thank you i will have to replace it
Strange. All of my 3Bs have leaked. Never had an issue.
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- #7
It leaks roughly 1 cup per pump from the pump
Interesting! Maybe that style of pump leaks? I always replace them with the bosch unit when I come across them.
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- #9
Yeah when I pump it leaks roughly a cup per pump from around the pump
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- #10
Do you have a link for the bosch pump or how I could find it
Bosch part number 2-447-222-126
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- #12
I just replace this not the whole module?
Correct.
There's essentially three pumps:
1. Primer Pump
2. Lift Pump
3. Injection Pump
You only have an issue with the Primer Pump.. here's an image I created for the 2H Injection Pump Assembly that shows the three parts - amongst many others. The 3B injection pump is much the same..
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- #14
Ok thank I was lookin on line for the lift pump and couldn't find my same issue and was having trouble thank you for clearing it up.
Do you have pressure when you prime the pump?
I didn't and since i'm new to the Landcruiser and diesels in general i replaced the lift pump as per advice.
Only to find myself stranded a couple of weeks later with a partly blocked fuel system due to sludge and debris in the tank.
Drain at least the filter cup thingy underneath the car to check if any water and other contamination comes out.
I needed help from my Land Rover buddy so we got to joke about LC reliability
But was able to limp it home after a road side work around.
@duncanrm Thanks in general for all your very understandable replies and pictures. They already helped me out a lot during my short time of LC ownership!
I didn't and since i'm new to the Landcruiser and diesels in general i replaced the lift pump as per advice.
Only to find myself stranded a couple of weeks later with a partly blocked fuel system due to sludge and debris in the tank.
Drain at least the filter cup thingy underneath the car to check if any water and other contamination comes out.
I needed help from my Land Rover buddy so we got to joke about LC reliability
But was able to limp it home after a road side work around. @duncanrm Thanks in general for all your very understandable replies and pictures. They already helped me out a lot during my short time of LC ownership!
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- #16
I cannot start it up at the moment due to having rad support and everything off but when I tried to prime it the handle leaks a lot and is rocksolid when I have the nipple open or closedDo you have pressure when you prime the pump?
I didn't and since i'm new to the Landcruiser and diesels in general i replaced the lift pump as per advice.
Only to find myself stranded a couple of weeks later with a partly blocked fuel system due to sludge and debris in the tank.
Drain at least the filter cup thingy underneath the car to check if any water and other contamination comes out.
I needed help from my Land Rover buddy so we got to joke about LC reliability
View attachment 3703596
@duncanrm Thanks in general for all your very understandable replies and pictures. They already helped me out a lot during my short time of LC ownership!
A couple of things:
1. With the bleeder nipple open on the fuel filter housing you should get nice spurts of diesel out with each press of the primer pump.
2. The "filter cup thingy" is actually a "sedimenter" and after 30+ years actually needs disassembly (remove float mechanism from top) to reliably clean, the little drain bolt is not enough. The sedimenter should preferably be deleted in fact and replaced with a combined filter/sedimentor before the lift pump in the engine bay. A few images of the sedimenter here -> HJ47/60/61/75 Sedimenter - https://photos.app.goo.gl/yTBd1qwecH7oP5L77
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- #18
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- #19
That's where it's leaking.
Classic primer pump leak, I am not a fan of that style of primer pump.
